An on-line cleaning and recycling device for pipe rods

Abstract

An on-line cleaning and recycling device for pipe rods, the device comprising a paraffin scraper; the paraffin scraper includes a paraffin scraping housing and a scraping brush head that can extend into the paraffin scraping housing to scrape and clean the outer wall of the oil rod or oil pipe passing through the paraffin scraping housing; an overflow recovery port is provided on the side wall of the paraffin scraping housing. The present invention can well solve the problems existing in the past. For the waste liquid generated during workover operations, it can be made not to fall to the ground and can be well cleaned and recycled.

Description

Technical Field

[0001] The present invention relates to an on-line cleaning and recycling device for pipe rods. Background Art

[0002] In the field of oilfield workover operations, the pollution problem is serious. Many enterprises and personnel are working hard to solve it, hoping to create a good environment for workover operators and contribute to the blue sky, green land and clear water of the motherland. At present, for the waste liquid generated in workover operations, various parties are trying their best to find ways, that is, how to prevent it from falling to the ground and how to clean it up. However, the current methods or equipment can only treat the symptoms, not the root cause. Summary of the Invention

[0003] Object of the Invention:

[0004] The present invention provides an on-line cleaning and recycling device for pipe rods, aiming to solve the problems existing in the past.

[0005] Technical Solution

[0006] An on-line cleaning and recycling device for pipe rods, the device includes a paraffin scraper; the paraffin scraper includes a paraffin scraping housing and a scraping brush head that can extend into the paraffin scraping housing to scrape and clean the outer wall of the oil rod or tubing passing through the paraffin scraping housing; an overflow recovery port is provided on the side wall of the paraffin scraping housing.

[0007] The scraping brush head is directly or indirectly connected to the paraffin scraping housing. In the structure where the scraping brush head is directly connected to the paraffin scraping housing: the scraping brush head is directly connected to the inner wall of the paraffin scraping housing;

[0008] In the structure where the scraping brush head is indirectly connected to the paraffin scraping housing, any one of the following forms can be selected: One of the structures where the scraping brush head is indirectly connected to the paraffin scraping housing: the scraping brush head is connected to a base connecting plate, and the base connecting plate is directly or indirectly connected to the paraffin scraping housing; Another structure where the scraping brush head is indirectly connected to the paraffin scraping housing: the scraping brush head is connected to the paraffin scraping housing through multiple connecting plates, and adjacent two connecting plates are connected by elastic supports, where the scraping brush head is arranged on the inner layer connecting plate, and the outer layer base connecting plate is directly or indirectly connected to the paraffin scraping housing.

[0009] In the structure where the scraping brush head is indirectly connected to the paraffin scraping housing, the connecting plate is an integral overall frame structure or a structure composed of multiple separate units; in the case where the connecting plate is an integral overall frame structure: if the connecting plate is composed of only one basic connecting plate, then the scraping brush head is arranged on the inner wall of the basic connecting plate, so that the scraping brush head forms a structure capable of scraping around the outer wall of the oil rod or the oil pipe within the basic connecting plate; if the connecting plate is a multi-layer connecting plate from the inside out, the scraping brush head is arranged on the inner wall of the inner-layer connecting plate, so that the scraping brush head forms a structure capable of scraping around the outer wall of the oil rod or the oil pipe within the inner-layer connecting plate; in the case where the connecting plate is a structure composed of multiple separate units: each connecting plate unit corresponds to a set of scraping brush heads; when the multiple connecting plate units are installed on the paraffin scraping housing, the scraping brush heads form a structure capable of scraping around the outer wall of the oil rod or the oil pipe.

[0010] In the case where the connecting plate is a structure composed of multiple separate units, it is further divided into the following two forms, and either one can be selected: One of the separate unit structures: when multiple connecting plate units are installed on the side wall of the paraffin scraping housing, the multiple connecting plate units directly enclose a closed frame structure; The second of the separate unit structures: when multiple connecting plate units are installed on the side wall of the paraffin scraping housing, the multiple connecting plate units are installed on a part of the side wall of the paraffin scraping housing.

[0011] In the second of the separate unit structures: the installation of the multiple connecting plate units on a part of the side wall of the paraffin scraping housing is one of the following installation methods: Installation method one: There is an installation opening for installing the connecting plate unit on the side wall of the paraffin scraping housing, and the connecting plate unit is installed on the side wall of the paraffin scraping housing through this installation opening (or the connecting plate unit is installed at this installation opening); Installation method two: The installation bolt EE passes through the side wall of the paraffin scraping housing to fixedly connect the connecting plate unit located inside the paraffin scraping housing to the side wall of the paraffin scraping housing.

[0012] The connecting plate is of a multi-piece unit structure: one or more of the connecting plate units are adjustable structures, and the adjustable connecting plate unit structure is one of the following two forms: One of the adjustable connecting plate unit structures: It further includes an outer connecting plate with through holes provided thereon. A rear support rod is provided at the rear side of the base connecting plate. The rear support rod extends into the through hole from the inner end of the through hole and can perform telescopic movement relative to the through hole. An adjusting bolt extends into the through hole from the outer end of the through hole and is in threaded cooperation with the through hole. By screwing the adjusting bolt, the telescopic movement of the connecting plate is controlled to adjust the size of the gap BB. During use, the outer connecting plate is connected to the wax scraping housing. An installation opening for installing the outer connecting plate is provided on the side wall of the wax scraping housing, and the outer connecting plate is installed on the side wall of the wax scraping housing through this installation opening. The second form of the adjustable connecting plate unit structure: A through hole is provided on the side wall of the wax scraping housing. A rear support rod is provided at the rear side of the base connecting plate. The rear support rod extends into the through hole from the inner end of the through hole and can perform telescopic movement relative to the through hole. An adjusting bolt extends into the through hole from the outer end of the through hole and is in threaded cooperation with the through hole. By screwing the adjusting bolt, the telescopic movement of the connecting plate is controlled to adjust the size of the gap BB.

[0013] In the case where the connecting plate is an integral overall frame structure: the connecting plate is a rotatable annular structure. A bearing structure is provided on the side wall of the wax scraping housing, and the bearing structure is provided above, below or both above and below the connecting plate. The connecting plate is connected to the inner ring of the bearing structure, and the outer ring of the bearing structure is fixedly connected to the side wall of the wax scraping housing. Teeth are provided on the outer wall of the connecting plate, and a worm or a gear DD-1 meshes with the teeth to form a worm and gear structure or a gear transmission structure, and the worm or the gear DD-1 is connected to the drive motor DD.

[0014] Above the overflow recovery port in the wax scraping housing, a steam chamber is further provided, and the steam chamber is provided above, below or both above and below the scraping brush head. The steam chamber is provided with a steam inlet.

[0015] A steam outlet is further provided on the side wall of the wax scraping housing; the steam outlet is located above the overflow recovery port.

[0016] A sealing gasket or a sealing core is provided above the wax scraping housing; the sealing gasket is provided at the upper part of the wax scraping housing, and through holes for the oil supply rod or the oil pipe to pass through are provided on the sealing gasket; the sealing core includes a core housing and a plug provided in the core housing, and through holes for the oil supply rod or the oil pipe to pass through are provided in the plug.

[0017] The core housing is composed of two parts that can be opened and closed, and the plug is also composed of two parts. During use, the two parts of the plug are respectively placed in the two parts of the core housing, and the two parts of the plug are buckled by closing the core housing, so that through holes for the oil supply rod or the oil pipe to pass through are formed in the plug.

[0018] The core housing is composed of two parts that can be opened and closed, and is divided into the following two structures, choose one of them: The first form of the core housing: The two parts of the core housing are connected by a hinge or a hinge or a rotating shaft so that the core housing forms a structure that can be opened and closed on one side FF; The second form of the core housing: A structure that can be opened and closed on both sides EE is formed between the two parts of the core housing.

[0019] A through hole is provided on the side wall of the core housing. The rear end of the slip extends into the through hole. The front end of the slip touches the plug. A top spring that touches the slip is provided in the through hole. The top bolt is threadedly matched with the outer end of the through hole and touches the top spring.

[0020] The top of the side wall of the wax scraping housing is provided with an upper connecting flange. The bottom of the core housing is provided with a connecting sleeve that can sleeve the upper connecting flange during use. During use, the connecting sleeve sleeves the upper connecting flange to complete the connection between the wax scraper and the sealing core.

[0021] It also includes an operating platform, which is a split structure with the wax scraper or is connected to the wax scraper. The operating platform includes a supporting platform, and a platform liquid discharge port is provided on the supporting platform.

[0022] In the structure where the operating platform is connected to the wax scraper: the operating platform is a structure surrounding the wax scraper, or the operating platform is a non-surrounding structure installed on the side wall or bottom of the wax scraper;

[0023] In the surrounding structure where the operating platform is surrounding the wax scraper: the supporting platform of the operating platform is provided with an operating through hole corresponding to the wellhead, and the wax scraper is installed corresponding to the operating through hole.

[0024] The operating through hole of the operating platform is installed corresponding to the bottom of the wax scraper or the inner wall of the operating through hole of the operating platform is connected to the outer wall of the wax scraper; In the structure where the inner wall of the operating through hole of the operating platform is connected to the outer wall of the wax scraper: the bottom of the wax scraper protrudes from the supporting platform of the operating platform or the bottom of the wax scraper is at most flush with the bottom of the supporting platform of the operating platform.

[0025] In the structure where the bottom of the wax scraper protrudes from the supporting platform of the operating platform: the bottom of the wax scraper is provided with an installation flange; In the structure where the operating through hole of the operating platform is installed corresponding to the bottom of the wax scraper and in the structure where the bottom of the wax scraper is at most flush with the bottom of the supporting platform of the operating platform: an installation flange is provided at the operating through hole.

[0026] Installation holes are provided on the supporting platform of the operating table. It also includes a hook used in cooperation with the installation holes; the hook is in an L-shaped or U-shaped structure; when the hook is in an L-shaped structure: the L-shaped hook is an L-shaped structure composed of a vertical extension rod and a horizontal drag rod, and a bottom tray for supporting the lower nut AA-1 below the bolt to keep the bolt upright is provided on the horizontal drag rod; when the hook is in a U-shaped structure: the U-shaped structure is composed of a vertical extension rod, a horizontal drag rod and a front support vertical rod, the vertical extension rod and the front support vertical rod are connected to the horizontal drag rod to form a U-shaped structure, and a bottom tray for supporting the lower nut AA-1 below the bolt to keep the bolt upright is provided on the front support vertical rod.

[0027] The supporting platform has a heat tracing mechanism. The heat tracing mechanism is one of the following two forms: One of the heat tracing mechanisms: the heat tracing mechanism is a heat tracing pipe coiled around the supporting platform. The second heat tracing mechanism: the supporting platform is a hollow sandwich structure, and this sandwich structure is the heat tracing mechanism. The sandwich structure is a cavity structure for introducing heat tracing steam, and the sandwich structure is connected with a sandwich steam inlet and a sandwich steam outlet.

[0028] A casing recovery pipeline overflow pipe is provided on the operating table.

[0029] Advantages and effects:

[0030] The present application provides a pipe and rod on-line cleaning and recovery device, which can be applied together with the steam cleaning and closed recovery process technology in the wellbore. By using a wax scraper, the steam temperature and consumption are reduced, achieving the purpose of energy saving. For oil and water wells with high wellbore pressure and overflow, there is no need to kill the well and relieve pressure before workover. The wellhead cleaning liquid and the wellhead returned liquid can be recovered without falling to the ground, reducing the generation of oil soil and the trouble of subsequent treatment. At the same time, the application of pump tanks is reduced. For wells without downhole oil drainage or when the oil drainer cannot be opened during operation, the tubing can be cleaned on-line, and the cleaning liquid can be directly recovered, reducing the secondary ground cleaning process. There is no need to lay the liquid-receiving cofferdam anti-seepage cloth at the operation wellhead, saving time and cost.

[0031] In summary, the present invention can well solve the problems existing in the past. For the waste liquid generated during workover operations, it can be cleaned and recovered without falling to the ground. Brief Description of the Drawings

[0032] Figure 1 It is a structural schematic diagram of the present application;

[0033] Figure 2 It is a schematic diagram of several forms of connection between the wax scraper and the operating table;

[0034] Figure 3 It is a top view when the operating table is not a surrounding structure;

[0035] Figure 4 It is an exploded view of the present application;

[0036] Figure 5 Schematic diagram of an installation state of the present application;

[0037] Figure 6 Schematic diagram of a form of the hook;

[0038] Figure 7 Schematic diagram of another form of the hook;

[0039] Figure 8 Schematic diagram of a form of the bottom tray;

[0040] Figure 9 Schematic diagram of another form of the bottom tray;

[0041] Figure 10 Schematic diagram of the connecting plate form of the integral frame structure;

[0042] Figure 11 Schematic diagram of another form of the connecting plate of the integral frame structure;

[0043] Figure 12 Schematic diagram of the disassembly and combination of one of the split unit structures of the wax applicator;

[0044] Figure 13 Schematic diagram of the installation method of the second split unit structure of the wax applicator;

[0045] Figure 14 Schematic diagram of a case of the connecting plate unit;

[0046] Figure 15 For Figure 14 Schematic diagram of the installation state of the connecting plate unit in;

[0047] Figure 16 Schematic diagram of the rotatable wax applicator;

[0048] Figure 17 External perspective view of the rotatable wax applicator;

[0049] Figure 18 Schematic diagram of the seal core structure;

[0050] Figure 19 Schematic diagram of the combination of the seal core and the wax applicator;

[0051] Figure 20 External perspective view of the wax applicator showing the installation opening;

[0052] Figure 21 Cross-sectional view of the operating table;

[0053] Figure 22 Stereogram of a form of the core housing;

[0054] Figure 23 Schematic diagram of a form of the plug

[0055] Figure 24 Schematic diagram of a form of the cooperation between the core housing and the plug

[0056] Figure 25 Schematic diagram of another form of the cooperation between the core housing and the plug

[0057] Figure 26 Schematic diagram after the core housing is buckled

[0058] Figure 27 Overall usage state diagram of the present application

[0059] Figure 28 Schematic diagram showing only the structure of the overflow pipe of the casing recovery pipeline on the operating table

[0060] Figure 29 Schematic diagram of the flow direction of the casing fluid along the pipe

[0061] Figure 30 Schematic diagram of a structure of the adjustable wax hanger

[0062] Figure 31 Schematic diagram of the structure of the adjustable wax hanger (the adjusting bolt is different Figure 30 from others);

[0063] Figure 32 For Figure 31 Installation schematic diagram of the adjustable wax hanger

[0064] Figure 33 Schematic diagram of the installation method of the wax scraper

[0065] Figure 34 Schematic diagram of one form of the wax scraper

[0066] Figure 35 Comparison data diagram between the present application and conventional operations; (the steam cleaning and closed recovery technology in the figure is the present application)

[0067] Figure 36 Comparison data diagram between the present application and conventional operations; (the steam cleaning and closed recovery technology in the figure is the present application)

[0068] Figure 37 Schematic diagram of a locking method after the core housing is buckled

[0069] Figure 38 Installation method of a connecting plate unit

[0070] Figure 39 Another installation method of the connecting plate unit Specific Embodiment

[0071] An on-line cleaning and recycling device for pipe rods, which mainly includes a paraffin scraper 2; the paraffin scraper 2 includes a (hollow) paraffin scraping housing 2-1 and a scraping brush head 5 that can extend into the paraffin scraping housing 2-1 during use to scrape and clean the outer wall of the oil rod or oil pipe that (axially) passes through the paraffin scraping housing 2-1 (such as Figure 19 , that is, passing through in the up and down direction), and the scraping brush head 5 is generally a steel brush with a certain elasticity; an overflow recovery port 12-1 is arranged below the side wall of the paraffin scraping housing 2-1.

[0072] The scraping brush head 5 is directly or indirectly connected to the paraffin scraping housing 2-1. In the structure where the scraping brush head 5 is directly connected to the paraffin scraping housing 2-1: the scraping brush head 5 is directly connected to the inner wall of the paraffin scraping housing 2-1; in the structure where the scraping brush head 5 is indirectly connected to the paraffin scraping housing 2-1, any one of the following forms can be selected:

[0073] One of the structures where the scraping brush head 5 is indirectly connected to the paraffin scraping housing 2-1: the scraping brush head 5 is connected to a basic connecting plate 4 (as Figures 10 - 13 shown, where the label 4 is that single connecting plate, which is the same as the outer basic connecting plate behind, but here there is only one connecting plate, so there is no distinction between inside and outside, and it is directly represented by the label 4), and the basic connecting plate 4 is directly or indirectly connected to the paraffin scraping housing 2-1.

[0074] Another structure where the scraping brush head 5 is indirectly connected to the paraffin scraping housing 2-1: as Figure 14 , Figure 15 shown, the scraping brush head 5 is connected to the paraffin scraping housing 2-1 through multiple layers (two or more) of connecting plates from the inside to the outside, and adjacent two layers of connecting plates are connected by an elastic support 4-2, where the scraping brush head 5 is arranged on the inner layer of connecting plate 4-3, and the outer basic connecting plate 4 is directly or indirectly connected to the paraffin scraping housing 2-1. The above elastic support 4-2 can generally adopt elastic steel bars, springs or steel wire ropes with a certain diameter, etc., or other known existing structures that can play an elastic support role are all acceptable. Its main function is to prevent damage to the outer wall of the oil rod or oil pipe during hard scraping; the above inner layer of connecting plate 4-3 is the connecting plate on the side close to the center of the paraffin scraping housing 2-1, that is, the connecting plate closest to the oil rod or oil pipe during use; the above outer basic connecting plate 4 is the connecting plate on the side far from the center of the paraffin scraping housing 2-1, that is, the connecting plate far from the oil rod or oil pipe during use.

[0075] The purpose of the multi-layer setting is mainly to cope with the changes in the diameters of the oil rod and the oil pipe. Taking the cylindrical paraffin scraping housing 2-1 as an example, as Figures 10 - 13As shown, if a single-layer structure is used to scrape the tubing, the pore BB will have a diameter suitable for the outer wall size of the tubing. However, when it is necessary to clean the outer wall of the rod, since the diameter of the rod is smaller than that of the tubing, at this time, the diameter of the pore BB for the tubing is not applicable to the rod, and a smaller diameter of the pore BB needs to be replaced. If the structure of the smaller pore BB is simply to reduce the diameter of the pore BB by increasing the length L of the bristles of the scraping brush head 5, then as the length L of the bristles increases, the scraping force will inevitably weaken. Therefore, the length L of the bristles needs to be kept as constant as possible. Instead, the wax scraping device with a multi-layer structure of the present application is adopted, that is, as shown in Figure 14 and Figure 15 The structure shown.

[0076] In the structure where the scraping brush head 5 is indirectly connected to the wax scraping housing 2-1, the connecting plate is an integral overall frame structure. This integral overall frame structure can be a structure adapted to the shape of the side wall (inner wall or outer wall) of the wax scraping housing 2-1, such as shown in Figure 10 and Figure 11 ; (For example, the closed annular frame shown in Figure 10 , or the square frame, or the well-known triangular frame or other polygonal frames, etc. The main thing is that the shape of the outer wall of the frame is preferably adapted to the shape of the side wall of the wax scraping housing 2-1. For example, if the side wall of the wax scraping housing 2-1 is cylindrical, then the frame structure of the wax scraping device is selected as an annular frame. If the side wall of the wax scraping housing 2-1 is a quadrangular prism structure, then the integral overall frame structure is selected as a square frame, etc. At this time, the connecting plate 4 is connected to the side wall of the wax scraping housing 2-1, which can be a fixed connection or a rotatable connection. The rotatable connection will be described later) or the connecting plate is a structure of multiple (two or more) split units; (that is, there are two options, either integral or split. The integral overall frame structure is as shown in Figure 10 , Figure 11 shown, and the split unit structure is as shown in Figures 12 - 15 and Figures 30 - 32 shown).

[0077] When the above-mentioned integral overall frame structure is fixedly installed, reference can be made to 33-1 and 33-2 in Figure 33 . As shown in 33-1 in Figure 33 , at this time, if it is installed at a position other than the upper and lower ends of the wax scraping housing 2-1, then at this time, the wax scraping housing 2-1 is equivalent to being divided into upper and lower parts, and then the integral overall frame structure is respectively fixed to the upper and lower parts of the wax scraping housing 2-1 with bolts; if the integral overall frame structure is installed at the upper end or the lower end of the wax scraping housing 2-1, it can be directly connected and installed with bolts; as shown in Figure 33As shown in Figure 33-2, there is another installation form. A boss 2-1-3 is provided inside the wax scraping housing 2-1. The integral border structure is directly placed on the boss 2-1-3, and then the upper end of the integral border structure is tightened by an inner sleeve 2-1-5. The inner sleeve 2-1-5 can be threadedly engaged with the inner wall of the wax scraping housing 2-1, or the upper ends of the wax scraping housing 2-1 and the inner sleeve 2-1-5 can be connected by a flange; or the integral border structure adopts any other existing and implementable installation method.

[0078] In the integral border structure of the connecting plate: If the connecting plate is only composed of a basic connecting plate 4, then the scraping brush head 5 is arranged on the inner wall of the basic connecting plate 4, so that the scraping brush head 5 forms a structure in the basic connecting plate 4 that can scrape around the outer wall of the oil rod or oil pipe (that is, a pore BB that can supply the oil rod or oil pipe to pass through is formed), and then the outer wall of the oil rod or oil pipe is scraped by the scraping brush head 5; If the connecting plate is a multi-layer connecting plate from the inside to the outside, the scraping brush head 5 is arranged on the inner wall of the inner-layer connecting plate 4-3, so that the scraping brush head 5 forms a structure in the inner-layer connecting plate 4-3 that can scrape around the outer wall of the oil rod or oil pipe.

[0079] In the structure of multiple (two or more) split unitary connecting plates: Each connecting plate unit corresponds to a set of scraping brush heads 5 (such as Figures 12 - 15 , Figures 30 - 32 , at this time, as shown in Figure 12 , Figure 13 , if it is a single-layer connecting plate structure, then at this time, there is only one basic connecting plate 4 in each connecting plate unit, as shown in Figures 14 - 15 , if it is a multi-layer connecting plate structure, then there are two or more connecting plates corresponding to each connecting plate unit); When multiple connecting plate units are installed with the wax scraping housing 2-1, the scraping brush heads 5 form a structure that can scrape around the outer wall of the oil rod or oil pipe. That is, as shown in Figure 12 and Figure 13 , the scraping brush heads 5 form a pore BB in the connecting plate that can supply the oil rod or oil pipe to pass through, and then the outer wall of the oil rod or oil pipe is scraped by the scraping brush heads 5; The split structure can be that multiple connecting plate units, like Figure 12 , directly enclose a closed border structure. At this time, if the connecting plate 4 is installed in the middle (the middle in the up and down direction) of the wax scraping housing 2-1, then the wax scraping housing 2-1 is actually equivalent to two parts up and down. Refer to Figure 33As shown in 33-1, the upper and lower parts are connected together by a connecting plate. When installing, first connect the connecting plate 4 to the lower half of the side wall of the wax scraper housing 2-1 by bolts, and then connect the connecting plate 4 to the upper half of the side wall of the wax scraper housing 2-1 by bolts. If the connecting plate 4 is installed at the upper end or lower end of the wax scraper 2, it can be directly connected to the side wall of the wax scraper housing 2-1; Figure 33 As shown in 33-2, it is another installation form. A boss 2-1-3 is set in the wax scraper shell 2-1, and the closed frame structure formed by the multiple connecting plate units is directly placed on the boss 2-1-3. Then the upper end of the integrated frame structure is tightened by the inner sleeve 2-1-5. The inner sleeve 2-1-5 can be matched with the inner wall thread of the wax scraper shell 2-1, or the upper ends of the wax scraper shell 2-1 and the inner sleeve 2-1-5 can be connected by a flange, or other existing feasible installation methods can be adopted.

[0080] The split structure can also be like Figure 13 In this way, the plurality of connecting plates 4 cannot be directly surrounded to form a closed frame structure, but are evenly distributed on the side wall of the wax scraping shell 2-1, just like Figure 13 That way (uneven is OK, but the effect is slightly worse; the so-called uniformity is like Figure 13 As shown in the right half of the figure, each connecting plate 4 has the same size, curvature and other dimensions, and the angle α between two adjacent connecting plates 4 is the same. Figure 13 From the left figure, the angle α between two adjacent connecting plates 4 is 120°. Of course, the connecting plates 4 can also be different, or installed unevenly, as long as the scraping brush head 5 can form a structure that can scrape around the outer wall of the oil rod or oil pipe). In this case, multiple connecting plate units are installed on the side wall of the wax scraper shell 2-1. Specifically, it can be one of the following installation methods: Installation method one: A mounting port 2-2 for installing the connecting plate unit is provided on the side wall of the wax scraper shell 2-1, and the connecting plate unit is installed with the side wall of the wax scraper shell 2-1 through the mounting port; Installation method two: (such as Figure 38 ) The mounting bolt EE passes through the side wall of the wax scraper housing 2-1 to fix the connecting plate unit located in the wax scraper housing 2-1 to the side wall of the wax scraper housing 2-1.

[0081] In the above-mentioned installation method of the installation port 2-2, if Figure 13 , Figure 14 and Figure 20 As shown, a first connecting bolt 4-1 is provided on the connecting plate 4, and a second connecting bolt 2-1-1 is provided on the side wall 2-1 of the wax scraper 2. When in use, Figure 13As shown in the figure, first install the basic connecting plate 4 corresponding to the installation port 2-2, and then install the intermediate connecting piece 4-1-1, so that the first connecting bolt 4-1 and the second connecting bolt 2-1-1 pass through the intermediate connecting piece 4-1-1 (the intermediate connecting piece 4-1-1 is provided with two through holes for the first connecting bolt 4-1 and the second connecting bolt 2-1-1 to pass through, and the diameter of the through hole is just suitable for accommodating the first connecting bolt 4-1 and the second connecting bolt 2-1-1. Of course, there are also other forms. For example, notches are provided on both sides of the intermediate connecting piece 4-1-1. After installing the basic connecting plate 4, place the intermediate connecting piece 4-1-1 between the first connecting bolt 4-1 and the second connecting bolt 2-1-1, so that the first connecting bolt 4-1 and the second connecting bolt 2-1-1 are just located in the notches on both sides of the intermediate connecting piece 4-1-1. Due to the limitation of the installation port 2-2, and because the installation port 2-2 is basically a structure that just accommodates the basic connecting plate 4 in terms of structure, this structure of the intermediate connecting piece 4-1-1 can also basically ensure the installation stability; of course, there are also many other existing well-known forms), and then screw a nut YY above each of the first connecting bolt 4-1 and the second connecting bolt 2-1-1, and tighten the intermediate connecting piece 4-1-1 through the two nuts YY, so as to connect the connecting plate 4 with the side wall 2-1 of the wax scraper 2. Figure 13 The left figure in the figure is before the installation of the connecting plate unit, and the right figure is after the installation of the connecting plate unit. Of course, any other existing well-known and implementable connection and locking methods can also be adopted.

[0082] Among the multiple split unit structures of the connecting plate, one or more of the connecting plate units can be adjustable structures, and the adjustable connecting plate unit structure is one of the following two forms: Taking the structure in which multiple connecting plate units are installed locally on the side wall of the wax scraping housing 2-1 as an example: As Figures 30 - 32 shown, one of the adjustable connecting plate unit structures: It also includes an outer connecting plate 26. A through hole 26-1 is provided on the outer connecting plate 26. A rear support rod 4-6 is provided at the rear of the basic connecting plate 4. The rear support rod 4-6 extends into the through hole 26-1 from the inner end of the through hole 26-1 (the inner end is the end facing the basic connecting plate 4 as Figure 30 shown) and can make a telescopic movement relative to the through hole 26-1 (that is, move along the axial direction of the through hole 26-1, that is, Figure 30 the direction shown by the arrow K), and the adjusting bolt 27 extends into the through hole 26-1 from the outer end of the through hole 26-1 and is threadedly engaged with the through hole 26-1 and abuts against the rear support rod 4-6. The above-mentioned threaded engagement can have the following several forms. One, as Figure 30 shown, the through hole 26-1 is an internal thread, and the adjusting bolt 27 is an external thread. The adjusting bolt 27 directly extends into the through hole 26-1 and is threadedly engaged with the through hole 26-1; Two, as Figure 31As shown, the through-hole 26-1 is tubular with external threads. The adjusting bolt 27 extends into the through-hole 26-1. At the front end of the adjusting bolt 27, there is a jacket 27-1 which has internal threads. The jacket 27-1 is sleeved outside the through-hole 26-1 and is in threaded fit with the outer wall of the through-hole 26-1. When used in the above manner, the outer connecting plate 26 is connected to the wax scraping housing 2-1 (for example, there is an installation opening 2-2 for installing the outer connecting plate 26 on the side wall of the wax scraping housing 2-1, and the outer connecting plate 26 is installed on the side wall of the wax scraping housing 2-1 through this installation opening, or it can also be described as the outer connecting plate 26 is installed at this installation opening 2-2). Then, by screwing the adjusting bolt 27, the telescopic movement of the connecting plate 4 (and thus driving the entire connecting plate unit) can be controlled, and further the size of the pore BB can be adjusted.

[0083] The second structure of the adjustable connecting plate unit: There is a through-hole 26-1 on the side wall of the wax scraping housing 2-1 (such as Figure 39 ). There is a rear support rod 4-6 at the rear side of the basic connecting plate 4. The rear support rod 4-6 extends into the through-hole 26-1 from the inner end of the through-hole 26-1 (the inner end is the end facing the basic connecting plate 4) and can make telescopic movement relative to the through-hole 26-1 (that is, move along the axial direction of the through-hole 26-1, which is also Figure 39 the direction indicated by the arrow K). The adjusting bolt 27 extends into the through-hole 26-1 from the outer end of the through-hole 26-1 and is in threaded fit with the through-hole 26-1 and abuts against the rear support rod 4-6. The above threaded fit can have the following several forms. First, refer to Figure 31 (only refer to the threaded fit part). The through-hole 26-1 has internal threads, the adjusting bolt 27 has external threads, and the adjusting bolt 27 directly extends into the through-hole 26-1 and is in threaded fit with the through-hole 26-1. Second, refer to Figure 32 (only refer to the threaded fit part). The through-hole 26-1 is tubular with external threads. The adjusting bolt 27 extends into the through-hole 26-1. At the front end of the adjusting bolt 27, there is a jacket 27-1 which has internal threads. The jacket 27-1 is sleeved outside the through-hole 26-1 and is in threaded fit with the through-hole 26-1. When used, by screwing the adjusting bolt 27, the telescopic movement of the connecting plate 4 is controlled, and further the size of the pore BB is adjusted.

[0084] In the case where the connecting plate is an integral overall frame structure (such as Figure 10 and Figure 11 shown): The connecting plate 4 can be a rotatable annular structure (such as Figure 16 , Figure 17 shown) (the rotation can be around its own axis and relative to the wax scraping housing 2-1). For example: As Figure 16As shown, a bearing structure (such as a deep groove ball bearing, etc.) is provided on the side wall of the wax scraping housing 2-1. The bearing structure is arranged above, below or both above and below the connecting plate 4. That is to say, the bearing can be arranged only above the connecting plate 4, or only below the connecting plate 4, or like Figure 16 that, bearings are arranged both above and below the connecting plate 4. Of course, for stability considerations, the way of arranging bearings both above and below is more stable; the connecting plate 4 is connected to the inner ring 17-1 of the bearing structure (if the bearing structure is only arranged above the connecting plate, the upper end of the connecting plate is connected to the inner ring of the bearing structure; if the bearing structure is only arranged below the connecting plate, the lower end of the connecting plate is connected to the inner ring of the bearing structure; if the bearing structure is arranged above and below the connecting plate, the upper and lower ends of the connecting plate are respectively connected to the inner rings of the bearing structures above and below). The outer ring 17-2 of the bearing structure is fixedly connected to the side wall of the wax scraping housing 2-1 (the inner ring can rotate relative to the outer ring); teeth 4-5 are provided on the outer wall of the connecting plate 4, and a worm or a gear DD-1 meshes with the teeth 4-5 to form a worm and gear structure or a gear transmission structure. The worm or the gear DD-1 is connected to the driving machine DD. The driving machine DD is selected as an electric motor or a hydraulic motor; as mentioned above, generally, a worm and gear structure or a gear transmission can be adopted. The worm and gear structure is that the worm DD-1 meshes with the teeth 4-5 to make the connecting plate 4 rotate. Another form is to adopt the gear DD-1 meshing with the teeth 4-5 to make the connecting plate 4 rotate. Of course, any other existing transmission method can also be adopted as long as it can make the connecting plate 4 rotate; in addition, it should be noted that, as Figure 17 shown, an opening 2-5 for exposing the teeth 4-5 is provided on the side wall of the wax scraping housing 2-1, so that the worm or the gear can mesh with the teeth 4-5.

[0085] The wax scraper can also be a vertical single-layer structure arranged from top to bottom or a vertical multi-layer structure arranged from top to bottom (the multi-layer structure arranged from top to bottom is as Figure 16 , Figure 19 shown); in the multi-layer structure arranged from top to bottom, multiple wax scrapers are arranged in an array from top to bottom.

[0086] A steam chamber 7-2 is also provided in the wax scraping housing 2-1. The steam chamber 7-2 is arranged above the overflow recovery port 12-1. The steam chamber is arranged above, below or both above and below the scraping brush head 5. That is, one of the three situations is selected: the first situation: the steam chamber is only arranged above the scraping brush head 5; the second situation: the steam chamber is only arranged below the scraping brush head 5; the third situation: steam chambers are arranged both above and below the scraping brush head 5. The steam chamber is provided with a steam inlet 7-2-1 that is connected to the steam inlet pipeline 11-3 on the steam pipe during use.

[0087] The side wall of the wax scraping housing 2-1 is also provided with a steam outlet 15-1 which is connected to the steam outlet pipe 15 during use; the steam outlet 15-1 is located above the overflow recovery port 12-1.

[0088] In addition, whether it is a wax scraping device with a steam chamber or a wax scraping device without a steam chamber, a gasket 30 or a sealing core can be provided above the wax scraping housing 2-1. If it is a structure with a steam chamber, both the gasket 30 and the sealing core are located above the steam chamber; the gasket 30 is arranged on the upper part of the wax scraping housing 2-1 (generally at the top opening), and a through hole 30-1 through which an oil supply rod or an oil pipe passes is provided on the gasket 30 (as Figure 34 shown).

[0089] The sealing core includes a core housing 6 and a plug 7 arranged in the core housing 6. A through hole 7-1 through which an oil supply rod or an oil pipe passes is provided in the plug 7. The core housing 6 is connected to the wax scraping housing 2-1. The inner wall shape and size of the through hole 7-1 are adapted to the outer wall of the oil rod or the oil pipe, so that the oil rod or the oil pipe can just pass through and can move up and down. The plug 7 is generally made of an elastic material such as rubber. The main function of the plug 7 in a structure with a steam chamber is a relatively closed function, that is, to prevent the steam in the steam chamber from leaking out as much as possible. In addition, the plug 7 can also appropriately scrape the outer wall of the oil rod or the oil pipe passing through.

[0090] The core housing 6 is composed of two parts that can be opened and closed, and the plug 7 is also composed of two parts (as Figures 22 - 26 shown). During use, the two parts of the plug 7 are respectively placed in the two parts of the core housing 6, and the two parts of the plug 7 are buckled by closing the core housing 6, so as to form a through hole 7-1 through which an oil supply rod or an oil pipe passes in the plug 7 (as Figure 23 and Figure 26 shown).

[0091] The core housing 6 is composed of two parts that can be opened and closed, and is also divided into the following two structures, one of which is selected: The first form of the core housing 6: (as Figure 22 , Figure 24 shown) The two parts of the core housing 6 are connected by a hinge or a hinge or a rotating shaft 20 so that the core housing 6 forms a structure that can be opened and closed on one side FF; similar to the structure of a mussel, the opening and closing side is the Figure 24 side FF shown in Figure 26 . After the two parts are buckled (the buckling is the state shown in Figure 37In the described form, a lock cylinder is provided in each of the two parts of the core housing 6, namely the first lock cylinder 6-2 and the second lock cylinder 6-3 respectively. After the core housing 6 is buckled, the locking bolt 6-4 is passed through the first lock cylinder 6-2 and the second lock cylinder 6-3 to complete the locking. The locking bolt 6-4 can have external threads, and the first lock cylinder 6-2 and the second lock cylinder 6-3 have internal threads. The locking bolt 6-4 is threadedly engaged with the first lock cylinder 6-2 and the second lock cylinder 6-3 for locking, or the locking bolt 6-4 is directly passed through the first lock cylinder 6-2 and the second lock cylinder 6-3 and then a nut is screwed at the bottom of the locking bolt 6-4. Or it is any other existing and well-known temporary locking method as long as it can achieve temporary locking;

[0092] The second form of the core housing 6: As Figure 25 shown, a structure that can be opened and closed on both sides EE is formed between the two parts of the core housing 6, that is, it can be buckled parallelly and removed parallelly. When not installed, the two parts are completely separated. After the two parts of the core housing 6 are buckled, a temporary locking mechanism is provided on each of the two sides EE that can be opened and closed to temporarily lock the two parts of the structure. (The locking mechanism is as described in the first form of the core housing 6).

[0093] A through hole 19 is provided on the side wall of the core housing 6. The rear end of the slip 20 extends into the through hole 19, and the front end of the slip 20 abuts against the plug 7. A top spring 21 that abuts against the slip 20 is provided in the through hole 19. The top bolt 22 is threadedly engaged with the outer end of the through hole 19 (that is, the left end as Figure 19 shown) and abuts against the top spring 21. There can also be the following two implementation methods here. The first one: As Figure 19 shown, the top bolt 22 extends into the through hole 19 to abut against the top spring 21. The top bolt 22 is provided with external threads, and the inner wall of the outer end of the through hole 19 is provided with internal threads. The top bolt 22 extends into the through hole 19 and is threadedly engaged with the through hole. By screwing the top bolt 22, the tightness of the abutting force of the slip 20 is adjusted; The second one: The top bolt 22 is a hollow cylindrical shape, and the outer end of the top bolt is closed. The outer end of the top bolt is the end far from the core housing 6 as Figure 19 shown, and this end is closed, while the inner end of the top bolt 22 is open. The inner wall of the cylindrical shape of the top bolt 22 is provided with internal threads, and the outer wall of the outer end of the through hole 19 is provided with external threads. The inner end of the top bolt 22 is sleeved on the outer end of the through hole 19 and is threadedly engaged with the through hole 19. And one end of the top spring 21 abuts against the slip 20, and the other end extends into the cylindrical cavity of the top bolt 22 to abut against the top bolt 22; Of course, any other existing and well-known form can also be adopted. The function of the top spring 21 is to maintain elastic clamping and avoid hard clamping without buffer margin.

[0094] As Figure 19As shown, at the top of the side wall of the wax scraping housing 2-1, there is an upper connection flange 2-1-2, and at the bottom of the core housing 6, there is a connection sleeve 6-1 that can sleeve the upper connection flange 2-1-2 during use. During use, the connection sleeve 6-1 sleeves the upper connection flange 2-1-2 to complete the connection between the wax scraper and the sealing core. During use, the bottom of the core housing 6 divided into two parts sleeves the upper connection flange 2-1-2, and then the two parts of the core housing 6 are buckled and connected, that is, the connection and installation between the sealing core and the wax scraping housing 2-1 are completed. Of course, this is a form that is convenient for disassembly. The sealing core and the wax scraping housing 2-1 can also be directly connected by known flange connection or other connection methods.

[0095] In addition, this application may also include an operating table 1. The operating table 1 and the wax scraper 2 are in a split structure for cooperative use or are connected between the operating table 1 and the wax scraper 2. That is to say, there are two forms between the operating table 1 and the wax scraper 2. The first one: the operating table 1 and the wax scraper 2 are separated and not connected, and they are used together during use; the second one: the operating table 1 and the wax scraper 2 are connected together. The operating table 1 includes a supporting platform 1-1, and on the supporting platform 1-1, there is a platform liquid discharge port 1-1-2 that is communicated with the platform liquid recovery pipe 1-1-3 during use.

[0096] In the structure where the operating table 1 and the wax scraper 2 are connected: the operating table 1 is a structure surrounding the wax scraper 2, or the operating table 1 is a non-surrounding structure installed on the side wall or bottom of the wax scraper 2; that is to say, there are two forms for the operating table 1 to choose from, namely, one of surrounding and non-surrounding. Surrounding means as Figure 1 shown, surrounding the wax scraper 2 on all sides, that is, the operating table 1 extends outward along the plane perpendicular to the axis of the wax scraping housing 2-1 (that is, towards the outer periphery of the outer wall of the wax scraping housing 2-1) to form a platform. The plane perpendicular to the axis of the wax scraper 2 can also be understood as the plane in the radial direction of the wax scraper 2. A guardrail or guard plate is provided around the operating table 1 (at this time, the operating table 1 is similar to a large basin or a plate with a certain depth); the non-surrounding structure is as Figure 3 shown, that is, the operating table 1 only extends and expands to a part of the periphery of the wax scraper 2, without surrounding. Compared with the surrounding structure, it does not extend and expand towards the outer periphery of the outer wall of the wax scraper 2, but only a part.

[0097] In the surrounding structure where the operating table 1 is arranged around the wax scraper 2: on the supporting platform 1-1 of the operating table 1, there is an operation through hole 1-1-6 corresponding to the wellhead, and the wax scraper 2 is installed corresponding to the operation through hole 1-1-6. That is to say, the wax scraper 2 can communicate with the wellhead through this operation through hole for operation, as Figure 1 and Figure 4 shown. The operation through hole 1-1-6 of the operating table 1 is installed corresponding to the bottom of the wax scraper 2 (as Figure 1 or Figure 2As shown in 2-1, the wax scraper 2 is directly installed on the supporting platform 1-1 of the operating table 1, and then the wax scraper 2 corresponds to the operating through-hole 1-1-6. At this time, the bottom lower surface of the wax scraping housing 2-1 is connected to the upper surface of the supporting platform 1-1) or the inner wall of the operating through-hole of the operating table 1 is connected to the outer wall of the wax scraper 2 (i.e., the outer wall of the wax scraping housing 2-1); (as Figure 2 shown in 2-2 and 2-3);

[0098] In the structure where the inner wall of the operating through-hole of the operating table 1 is connected to the outer wall of the wax scraper 2: the bottom of the wax scraper 2 (i.e., the bottom of the wax scraping housing 2-1) protrudes from the supporting platform 1-1 of the operating table 1 (as Figure 2 shown in 2-3) or the bottom of the wax scraper 2 is at most flush with the bottom of the supporting platform 1-1 of the operating table 1 (as Figure 2 shown in 2-2). The meaning of being at most flush with the bottom of the supporting platform 1-1 of the operating table 1 here is that it does not protrude from the bottom surface of the supporting platform 1-1, as Figure 1 shown or as Figure 2 shown in 2-2. Of course, taking Figure 2 shown in 2-2 as an example, the bottom of the wax scraper 2 can also be a little higher. In short, as long as the bottom does not exceed the supporting platform 1-1.

[0099] In the structure where the bottom of the wax scraper 2 (i.e., the bottom of the wax scraping housing 2-1) protrudes from the supporting platform 1-1 of the operating table 1: an installation flange 3 is provided at the bottom of the wax scraper 2; (as Figure 2 shown in 2-3, this form is applicable to both the surrounding form and the non-surrounding form of the operating table 1);

[0100] In the structure where the operating through-hole of the operating table 1 corresponds to the bottom installation of the wax scraper 2 (as Figure 2 shown in 2-1) and the structure where the bottom of the wax scraper 2 is at most flush with the bottom of the supporting platform 1-1 of the operating table 1 (as Figure 2 shown in 2-2): an installation flange 3 is provided at the operating through-hole (or around it). (as Figure 1 , Figure 2 shown in 2-1, Figure 2 shown in 2-2 and Figure 4 shown), and installation holes 8 can be provided at the position on the supporting platform 1-1 close to the installation flange 3 (as Figure 1 , Figure 4 and Figure 5 shown). (A retaining wall 8-1 is provided around the installation hole 8 to prevent the cleaned substances from flowing out of the installation hole) This installation hole 8 is applicable to both the surrounding structure and the non-surrounding structure.

[0101] It further includes a supporting hook 9 used in cooperation with the mounting hole 8; the supporting hook 9 is in an L-shaped or U-shaped structure; when the supporting hook 9 is in an L-shaped structure: the L-shaped supporting hook is an L-shaped structure composed of a vertical extension rod 9-1 and a horizontal towing rod 9-2, and a bottom tray 9-3 for supporting the lower nut AA-1 below the bolt to keep the bolt in an upright state is arranged on the horizontal towing rod 9-2 (as Figure 6 shown); when the supporting hook 9 is in a U-shaped structure: the U-shaped structure is composed of a vertical extension rod 9-1, a horizontal towing rod 9-2 and a front supporting vertical rod 9-4, and the vertical extension rod 9-1 and the front supporting vertical rod 9-4 are connected to the horizontal towing rod 9-2 to form a U-shaped structure (for example: the vertical extension rod 9-1 and the front supporting vertical rod 9-4 can be arranged at both ends of the horizontal towing rod 9-2 to form a U-shaped structure as a whole), and a bottom tray 9-3 for supporting the lower nut AA-1 below the bolt to keep the bolt in an upright state is arranged on the front supporting vertical rod 9-4 (as Figure 7 shown).

[0102] The inside of the bottom tray 9-3 is a groove (as Figure 6 and Figure 7 shown), and the inner wall shape of the groove is adapted to the outer wall of the lower nut AA-1 below the bolt, so that the lower nut below the bolt can just be placed in the groove (that is, the gap should not be too large, and it is best to meet the requirement that the lower nut below the bolt can just be placed. Generally, the sizes of the mounting bolts corresponding to the mounting holes of the wellhead flange are the same, so the size and shape of the bottom tray 9-3 do not need to change much). In this way, the lower nut below the bolt is supported. To ensure stability, the side wall of the groove can be appropriately higher. It is appropriate that the side wall of the groove is flush with the upper surface of the lower nut or slightly higher or at least exceeds half of the height of the lower nut, so as to keep the bolt upright; in addition, the bottom tray 9-3 can also have other forms. For example: Figure 8 and Figure 9 , the bottom tray 9-3 includes a bottom plate 9-3-1, and a plurality of cards or card columns 9-3-2 are arranged on the bottom plate 9-3-1. The plurality of cards or card columns form a shape that can just accommodate the lower nut AA-1 below the bolt AA, and the lower nut below the bolt AA is directly placed in the structure formed by the plurality of cards. Of course, any other existing well-known method can also be adopted as long as it can support the lower nut. An armrest 9-5 is arranged at the top end of the vertical extension rod 9-1 for convenient operation. As Figure 5As shown in the figure, when in use, place bolt AA in tray 9-3. There is a lower nut AA-1 below bolt AA. Generally, the inner wall shape of tray 9-3 is adapted to the outer wall shape of this lower nut AA-1, so as to ensure that bolt AA stands upright. Then pass tray 9-3 through mounting hole 8 and make bolt AA correspond to the mounting holes of mounting flange 3 and wellhead flange B. Then lift tray 9-3 upward so that the upper end of bolt AA passes through the mounting hole of wellhead flange B and the mounting hole of mounting flange 3 from bottom to top in sequence. Then the upper nut AA-2 can be screwed on above, and thus the operating platform 1 is temporarily fixed to wellhead flange B through bolt AA.

[0103] The operating platform 1 is installed on the side wall of the wax scraper 2 (refer to the installation form in 2-2 and Figure 2 in Figure 2 and the installation form in 2-3) or at the bottom (refer to the installation form in 2-1 in Figure 2 ): There is a mounting flange 3 arranged around the bottom of the wax scraper 2. Reference can be made to the forms in Figure 2 and Figure 3 . Among them, Figure 2 are several forms of installing the operating platform 1 on the side wall or bottom of the wax scraper 2. Although the operating platform 1 in this figure is drawn based on a surrounding structure, the installation form of the operating platform 1 in a non-surrounding structure and the wax scraper 2 can also refer to it, that is, the operating platform 1 is installed on the side wall or bottom of the wax scraper 2, and the wax scraper 2 can also protrude downward from the bottom surface of the supporting platform 1-1 of the operating platform 1, as shown in 2-3 in Figure 2 . Of course, it can also not protrude downward from the bottom surface of the supporting platform 1-1, as shown in 2-1 in Figure 2 and 2-2 in Figure 2 ; when the operating platform is a non-surrounding structure, the top view is shown in 3-1 in Figure 3 . At this time, the wax scraper 2 is directly installed on the wellhead through the mounting flange 3; the structure at this time is that the bottom of the wax scraper 2 protrudes downward from the supporting platform 1-1. Because Figure 3 3-1 in Figure 3 is a top view, part of the flange 3 is blocked by the operating platform; as shown in 3-2 in

[0104] Figure 3

[0104] The supporting platform 1-1 may also be provided with a tracing mechanism. The tracing mechanism can be roughly divided into the following two forms (choose one). The first form: The tracing mechanism is a tracing pipe 10 coiled around the supporting platform 1-1 (it can be coiled around the upper surface of the supporting platform 1-1. When coiled around the upper surface, a partition net can be arranged above the tracing pipe, and people can stand on the partition net to operate, and the cleared substances can pass through the partition net and fall onto the supporting platform 1-1; or the tracing pipe can also be coiled inside the inner layer of the supporting platform 1-1); the steam inlet 10-1 and the steam outlet 10-2 of the tracing pipe 10 are connected to the outside of the operating platform 1. The second form: The supporting platform 1-1 is a hollow sandwich structure 1-1-1, and this sandwich structure 1-1-1 is the tracing mechanism. The cavity of the sandwich structure 1-1-1 is a cavity structure for introducing tracing steam, and the sandwich structure 1-1-1 is connected with a sandwich steam inlet and a sandwich steam outlet.

[0105] The above-mentioned operating platform 1 is a device for containing and discharging the cleared substances and recovering casing fluid, etc. A casing recovery pipeline overflow pipe 25 can also be arranged on the operating platform 1. (For recovering casing fluid, as Figure 28 and Figure 29 shown, Figure 29 the dotted line and arrow in

[0106] are the flow directions of the casing fluid along the pipe, and the recovery pipeline overflow pipe 25 is connected according to the dotted line mode)

[0107] Embodiment 1: A pipe and rod on-line cleaning and recovery device, which mainly includes a wax scraper 2; the wax scraper 2 includes a hollow wax scraping housing 2-1 and a scraping brush head 5 that can extend into the wax scraping housing 2-1 to scrape and clean the outer wall of the oil rod or oil pipe passing through the wax scraping housing 2-1; an overflow recovery port 12-1 is arranged below the side wall of the wax scraping housing 2-1. During use, the wax scraping housing 2-1 (through the flange 3) is installed at the wellhead (the flange 3 is bolted to the wellhead flange B), so that the oil rod or oil pipe passes through the pore BB formed by the scraping brush head 5, and the overflow recovery port 12-1 is connected to the connecting oil-water-steam separation device 13 (a small negative pressure tank), and the oil-water-steam separation device 13 is then connected to the environmental protection operation device 14 (the environmental protection operation device 14 is connected to the production manifold, etc., and the environmental protection operation device 14 is a large negative pressure tank); of course, it can also be directly connected to the environmental protection operation device 14 without passing through the oil-water-steam separation device 13. Then, by pulling up the oil rod or oil pipe, the outer wall of the oil rod or oil pipe can be scraped by the scraping brush head 5, and the scraped substances together with the overflow are recovered through the overflow recovery port 12-1. This embodiment is a form of using the wax scraper alone.

[0108] Embodiment

[0109] An on-line cleaning and recycling device for pipe rods, which mainly includes a paraffin scraper 2; the paraffin scraper 2 includes a hollow paraffin scraping housing 2-1 and a scraping brush head 5 that can extend into the paraffin scraping housing 2-1 to scrape and clean the outer wall of the oil rod or oil pipe passing through the paraffin scraping housing 2-1; an overflow recovery port 12-1 is arranged below the side wall of the paraffin scraping housing 2-1, and a steam chamber 7-2 is also arranged above or below the scraping brush head 5, or steam chambers 7-2 are arranged above and below the scraping brush head 5. The steam chamber 7-2 is provided with a steam inlet 7-2-1 (connected to a boiler truck or other steam supply equipment during use). At this time, a single steam outlet 15-1 can be set so that steam enters the steam chamber from the steam inlet 7-2-1 and exits from the steam outlet 15-1. The steam outlet 15-1 is located above the overflow recovery port 12-1. Of course, the steam outlet 15-1 can also not be set separately, and the steam can be discharged along with the overflow recovery port 12-1 and the top of the paraffin scraping housing 2-1. During use, the paraffin scraping housing 2-1 (through the flange 3) is installed at the wellhead (the flange 3 is bolted to the wellhead flange B), so that the oil rod or oil pipe passes through the pore BB formed by the scraping brush head 5 and the steam chamber; the overflow recovery port 12-1 and the steam outlet 15-1 are connected to an oil-water-steam separation device 13 (a small negative pressure tank), and the oil-water-steam separation device 13 is then connected to an environmental protection operation device 14 (the environmental protection operation device 14 is connected to a production manifold, etc., and the environmental protection operation device 14 is a large negative pressure tank); of course, it can also be directly connected to the environmental protection operation device 14 without passing through the oil-water-steam separation device 13. In this case, the outer wall of the oil rod or oil pipe is scraped and cleaned by the scraping brush head 5 in a steam environment, and the scraped substances together with the overflow are recovered through the overflow recovery port 12-1.

[0110] Embodiment

[0111] This embodiment is based on "Embodiment 1" and mainly includes a paraffin scraper 2; the paraffin scraper 2 includes a hollow paraffin scraping housing 2-1 and a scraping brush head 5 that can extend into the paraffin scraping housing 2-1 to scrape and clean the outer wall of the oil rod or oil pipe passing through the paraffin scraping housing 2-1; an overflow recovery port 12-1 is arranged below the side wall of the paraffin scraping housing 2-1, and a gasket 30 or a sealing core is arranged above the paraffin scraping housing 2-1. Either the gasket (usually made of rubber or other materials) or the sealing core is selected; when the gasket is selected, the gasket 30 is arranged on the upper part of the paraffin scraping housing 2-1 (usually at the top opening), and the gasket 30 is provided with a through hole 30-1 for the oil rod or oil pipe to pass through (such as Figure 34As shown in the figure, the shape and size of the through hole 30-1 are preferably adapted to the outer wall of the sucker rod or the tubing to meet the requirement that the sucker rod or the tubing can just pass through and move; when selecting and setting the sealing core, the sealing core includes a core housing 6 and a plug 7 (usually made of rubber, etc.) arranged in the core housing 6, and a through hole 7-1 for the sucker rod or the tubing to pass through is arranged in the plug 7; at this time, the function of the gasket or the sealing core is to perform a secondary scraping on the outer wall of the sucker rod or the tubing above the scraping brush head 5. Taking the structure with a sealing core as an example, during use, the wax scraping housing 2-1 (through the flange 3) is installed at the wellhead (the flange 3 is bolted to the wellhead flange B), so that the sucker rod or the tubing passes through the pore BB formed by the scraping brush head 5 and the through hole 7-1 of the plug (if it is the structure of the gasket, the sucker rod or the tubing passes through the pore BB formed by the scraping brush head 5 and the through hole 30-1 of the gasket); the overflow recovery port 12-1 is connected to the oil-water steam separation device 13 (a small negative pressure tank), and the oil-water steam separation device 13 is then connected to the environmental protection operation device 14 (the environmental protection operation device 14 is connected to the production manifold, etc., and the environmental protection operation device 14 is a large negative pressure tank); of course, it can also be directly connected to the environmental protection operation device 14 without passing through the oil-water steam separation device 13. Then, by lifting the sucker rod or the tubing upward, the outer wall of the sucker rod or the tubing can be scraped by the scraping brush head 5, and then scraped again by the plug 7 or the gasket 30. The scraped substances together with the overflow are recovered through the overflow recovery port 12-1. This implementation method is in the form of using a wax scraper and a sealing core (gasket).

[0112] Embodiment

[0113] On the basis of Embodiment 2, a gasket 30 or a sealing core is added, mainly including a wax scraper 2; the wax scraper 2 includes a hollow wax scraping housing 2-1 and a scraping brush head 5 that can extend into the wax scraping housing 2-1 to scrape and clean the outer wall of the sucker rod or the tubing passing through the wax scraping housing 2-1; an overflow recovery port 12-1 is arranged below the side wall of the wax scraping housing 2-1, and a steam chamber 7-2 with a steam inlet 7-2-1 is also arranged above or below the scraping brush head 5, or steam chambers 7-2 with steam inlets 7-2-1 are arranged above and below the scraping brush head 5. At this time, a steam outlet 15-1 can be set separately so that steam enters the steam chamber from the steam inlet 7-2-1 and exits from the steam outlet 15-1. The steam outlet 15-1 is located above the overflow recovery port 12-1; a gasket 30 or a sealing core (one of them) is arranged above the wax scraping housing 2-1; if a gasket is selected, the gasket 30 is arranged on the upper part of the wax scraping housing 2-1 (usually at the top opening), and a through hole 30-1 for the sucker rod or the tubing to pass through is arranged on the gasket 30 (such as Figure 34As shown. The shape and size of the through hole 30-1 are preferably adapted to the outer wall of the sucker rod or the tubing to satisfy that the sucker rod or the tubing can just pass through and move; if a sealing core is selected, the sealing core includes a core housing 6 and a plug 7 arranged in the core housing 6, and a through hole 7-1 for the sucker rod or the tubing to pass through is arranged in the plug 7; at this time, the function of the sealing gasket 30 or the sealing core is to play a role of secondary scraping on the sucker rod or the tubing above the scraping brush head 5, and at the same time, it can also seal most of the steam in the wax scraping housing 2-1 to a certain extent to achieve a relatively sealed effect, so that most of the steam will not leak out from the upper part of the wax scraping housing 2-1 to improve the scraping effect; during use, the wax scraping housing 2-1 (through the flange 3) is installed at the wellhead (the flange 3 is bolted to the wellhead flange B), so that the sucker rod or the tubing passes through the pore BB formed by the scraping brush head 5 and the steam chamber; the overflow recovery port 12-1 and the steam outlet 15-1 are connected to the oil-water-steam separation device 13 (a small negative pressure tank), and the oil-water-steam separation device 13 is then connected to the environmental protection operation device 14 (the environmental protection operation device 14 is connected to the production pipeline, etc., and the environmental protection operation device 14 is a large negative pressure tank); of course, it can also be directly connected to the environmental protection operation device 14 without passing through the oil-water-steam separation device 13; the steam inlet 7-2-1 of the steam chamber is connected to a boiler truck or other steam supply equipment during use. In this case, the outer wall of the sucker rod or the tubing is scraped and cleaned by the scraping brush head 5 in a steam environment, and the scraped substances and the overflow are recovered through the overflow recovery port 12-1; the oil-water-steam separation device 13 or the environmental protection operation device 14 recovers the steam through the steam outlet 15-1.

[0114] Embodiment

[0115] On the basis of Embodiment 1 - Embodiment 4, the operation console 1 can be additionally used separately (that is, the operation console and the wax scraper are separated and not connected). During use, the wax scraping housing 2-1 is installed at the wellhead through the flange 3 (the flange 3 is bolted to the wellhead flange B). Then the overflow recovery port 12-1 (if there is a steam outlet 15-1, it is connected together with the steam outlet 15-1) is connected to the oil-water-steam separation device 13 (a small negative pressure tank), and the oil-water-steam separation device 13 is then connected to the environmental protection operation device 14 (the environmental protection operation device is connected to the production pipeline, etc., and the environmental protection operation device 14 is a large negative pressure tank); of course, it can also be directly connected to the environmental protection operation device without passing through the oil-water-steam separation device; then the platform liquid discharge port 1-1-2 of the operation console 1 is connected to the oil-water-steam separation device 13 (a small negative pressure tank) through the platform liquid recovery pipe 1-1-3, and the oil-water-steam separation device 13 is then connected to the environmental protection operation device 14 (the environmental protection operation device is connected to the production pipeline, etc., and the environmental protection operation device is a large negative pressure tank); of course, it can also be directly connected to the environmental protection operation device without passing through the oil-water-steam separation device; again, such as Figure 28 and Figure 29As shown, the casing fluid is recovered by using the overflow pipe 25 of the casing recovery pipeline, and is discharged and recovered together through the platform fluid discharge port 1-1-2; if it is necessary to clean the outer wall of the sucker rod or the tubing, the above-mentioned wax scraper (see any one of the forms in Embodiment 1-4 specifically) is used for cleaning and recovery, and if it is necessary to clean the inner wall of the tubing, just use this operating table. Place the tubing vertically on the operating table (vertically means the up and down direction with Figure 21 as a reference, and the tubing can be vertically lifted by a suspension method so that the bottom end of the tubing faces the operating table), connect a steam spray gun from a boiler truck or other steam supply equipment and extend it into the tubing from the upper end, pass steam through the tubing for cleaning. After cleaning, the substances fall onto the operating table and are then recovered through the platform fluid discharge port 1-1-2 and the platform fluid recovery pipe 1-1-3 (recovered and processed through the oil-water-steam separation device 13 or the environmental protection operation device 14 or first entering the oil-water-steam separation device 13 and then entering the environmental protection operation device 14).

[0116] Embodiment

[0117] This embodiment is based on Embodiment 1-Embodiment 4. The wax scraper 2 is connected to the operating table 1. The specific connection method is as described above and as shown in Figures 1 - 5 ; the installation method of this way is shown in Figure 5 , and the specific description is as described above, so it will not be elaborated here. For the specific usage method, refer to Embodiment 5.

[0118] The sealing gasket 30 in the above-mentioned embodiment is clamped and installed by two flanges 2-1-2 and 2-1-5.

[0119] In the above-mentioned embodiment with a steam chamber, if the steam chamber is located above the scraping brush head 5, the steam outlet 15-1 is located below the scraping brush head 5 and at the same time above the overflow recovery port 12-1. If the steam chamber is located below the scraping brush head 5, the steam outlet 15-1 is located above the scraping brush head 5. If steam chambers are provided both above and below the scraping brush head 5, the steam outlet 15-1 can be arranged below the lower steam chamber, above the upper steam chamber, or between the two steam chambers (when arranged between the two steam chambers, it can be above or below the scraping brush head 5).

[0120] Next, using an embodiment, the entire operation process of the present invention will be further described in detail: Embodiment: As shown in Figure 1 , Figure 5 and Figure 19As shown in the figure, it includes a wax scraping housing 2-1 and a scraping brush head 5 that can extend into the wax scraping housing 2-1 to scrape and clean the outer wall of the oil rod or oil pipe passing through the wax scraping housing 2-1; a sealing core is arranged above the wax scraper, and the sealing core includes a core housing 6 and a plug 7 arranged in the core housing 6. A through hole 7-1 for the oil rod or oil pipe to pass through is arranged in the plug 7; the wax scraper is connected to an operating platform, and the bottom of the wax scraping housing 2-1 is installed corresponding to the operating through hole 1-1-6, that is to say, the wax scraper 2 can be connected to the wellhead through this operating through hole for operation. A steam chamber 7-2 is arranged between the sealing core and the scraping brush head 5, and a steam inlet 7-2-1 for connecting to the steam inlet pipeline 11-3 on the steam pipe during use is arranged on the steam chamber 7-2. An overflow recovery port 12-1 connected to the overflow recovery pipe 12 is arranged below the side wall of the wax scraping housing 2-1 (mainly to prevent the return water in the wellhead from overflowing upwards); a steam outlet 15-1 connected to the steam outlet pipe 15 is also arranged on the side wall of the wax scraping housing 2-1; both the overflow recovery port 12-1 and the steam outlet 15-1 are located below the scraping brush head 5, and the steam outlet 15-1 is arranged above the overflow recovery port 12-1.

[0121] A three-way conversion valve 11-1 is arranged on the steam pipe. The first end of the three-way conversion valve 11-1 is connected to an external steam supply pipeline 11-2 (the steam supply pipeline 11-2 is generally connected to equipment such as a boiler truck that can supply steam), the second end of the three-way conversion valve 11-1 is connected to the steam inlet pipeline 11-3 connected to the steam chamber 7-2, and the third end of the three-way conversion valve 11-1 is connected to a standby pipeline 11-4. By switching the state of the three-way conversion valve 11-1, that is, selecting to connect the steam supply pipeline 11-2 to the steam inlet pipeline 11-3 of the steam chamber 7-2 or selecting to connect the steam supply pipeline 11-2 to the standby pipeline 11-4. The function of the standby pipeline 11-4 is mainly used when cleaning the inner wall of the oil pipe. Place the oil pipe on the operating platform, introduce the standby pipeline 11-4 into the oil pipe, and conduct steam through it.

[0122] During use, as Figure 5 shown, connect the operating platform 1 to the wellhead flange B through the flange 3 (the operating platform 1 can be lifted mechanically, such as by a hydraulic cylinder, a crane, a lifting platform, etc., and place the operating platform 1 above the wellhead. Of course, it can also be lifted manually). Taking the connection method shown in Figure 5 as an example, align the bottom of the wax scraping housing 2-1 of the wax scraper 2 with the wellhead, take out the L-shaped hook, place the bolt AA in the tray 9-3, then pass the tray 9-3 through the installation hole 8 and make the bolt AA correspond to the installation holes of the installation flange 3 and the wellhead flange B, then lift the tray 9-3 upwards so that the upper end of the bolt AA passes through the installation holes of the wellhead flange B and the installation flange 3 from bottom to top in sequence, and then the upper nut AA-2 can be screwed on above, and then the operating platform 1 connected to the wax scraper can be temporarily fixed to the wellhead flange B through the bolt AA.

[0123] AsFigure 27 As shown, the overflow recovery pipe 12 inside the oil pipe, the steam outlet pipe 15, and the platform liquid recovery pipe 1-1-3 are all connected to the oil-water steam separation device 13. The oil-water steam separation device 13 is a small negative pressure tank 13-2 connected to a vacuum pump 13-1. An inlet 13-3 and an outlet 13-5 are provided on the side wall of the small negative pressure tank 13-1. The inlet 13-3 of the small negative pressure tank 13-2 is connected to the overflow recovery pipe 12 inside the oil pipe, the platform liquid recovery pipe 1-1-3, and the steam outlet pipe 15. The outlet 13-5 of the small negative pressure tank 13-2 is connected to the environmental protection operation device 14 (the environmental protection operation device 14 is connected to the production manifold, etc., and the environmental protection operation device 14 is a large negative pressure tank); the exhaust pipe of the vacuum pump 13-1 passes through the small negative pressure tank 13-2 and forms an exhaust port on the small negative pressure tank 13-2, and this exhaust port is connected to the steam inlet 10-1 of the heat tracing pipe 10 or the sandwich steam inlet of the sandwich structure 1-1-1 for heat tracing. Of course, the exhaust pipe of the vacuum pump 13-1 can also not pass through the small negative pressure tank 13-2 and be directly connected to the steam inlet 10-1 of the heat tracing pipe 10 or the sandwich steam inlet of the sandwich structure 1-1-1 for heat tracing, which is more energy-efficient. Of course, it is also possible to directly introduce steam from a boiler truck (or other steam supply equipment) into the steam inlet 10-1 of the heat tracing pipe 10 or the sandwich steam inlet of the sandwich structure 1-1-1. At this time, the amount of steam introduced can be controlled by a valve so that it only needs to ensure that the substances on the operation platform do not condense; the exhaust port 10-2 of the heat tracing pipe 10 and the exhaust port of the sandwich structure 1-1-1 are used for discharging the heat tracing gas. Of course, the reason for connecting the overflow recovery pipe 12 inside the oil pipe, the steam outlet pipe 15, and the platform liquid recovery pipe 1-1-3 to the oil-water steam separation device 13 is to achieve better effects. It is also possible not to connect to the oil-water steam separation device 13 and directly connect to the environmental protection operation device 14, and the connection method is the same as that for connecting to the oil-water steam separation device 13. After installation, connect the steam outlet of the boiler truck (or other steam supply equipment) to the steam supply pipeline 11-2. If it is to clean the outer wall of the sucker rod or the oil pipe, then (through the three-way conversion valve 11-1 or other methods) make the steam outlet of the boiler truck connect to the steam inlet pipeline 11-3 through the steam supply pipeline 11-2, and then make the steam chamber 7-2 pass through steam; if it is to clean the inner wall of the oil pipe, place the oil pipe on the operation platform. Generally, make it in a vertical state (mechanical hoisting can be used), and then introduce the extension pipe of the spare pipeline 11-4 into the oil pipe from the upper end;

[0124] When cleaning the outer wall of the sucker rod or the oil pipe, make the sucker rod or the oil pipe pass through the pores (BB) of the paraffin scraper, the steam chamber, and the through hole 7-1 and move vertically (which is the moving direction when lifting the sucker rod or the oil pipe. At Figure 19As shown, the moving direction when lifting the sucker rod or tubing is upward movement of the sucker rod or tubing. At the same time, open the steam outlet of the boiler truck to allow steam to enter the steam chamber 7-2, so as to effectively scrape and clean the outer wall of the sucker rod or tubing in an environment with steam input. That is, the scraping brush head 5 scrapes the outer wall of the sucker rod or tubing, and the plug 7 elastically clamps the sucker rod or tubing to prevent a large amount of steam from leaking and incidentally performs secondary scraping. The cleaned steam and the substances after cleaning are respectively recovered through the steam outlet 15-1 and the overflow recovery port 12-1 (recovered and processed by being sucked away through the oil-water-steam separation device 13 or the environmental protection operation device 14 or first entering the oil-water-steam separation device 13 and then entering the environmental protection operation device 14).

[0125] When it is necessary to clean the inner wall of the tubing, close the steam inlet pipeline 11-3, place the tubing vertically on the operating table (that is, usually make the tubing stand up), open the standby pipeline 11-4, connect the extension pipe of the standby pipeline 11-4 to a steam spray gun and insert it into the tubing from the upper end to clean the tubing with steam. The substances after cleaning fall onto the supporting platform 1-1, and are recovered together with the substances discharged onto the supporting platform 1-1 through the overflow pipe 25 of the casing recovery pipeline through the platform liquid discharge port 1-1-2 and the platform liquid recovery pipe 1-1-3 (recovered and processed by being sucked away through the oil-water-steam separation device 13 or the environmental protection operation device 14 or first entering the oil-water-steam separation device 13 and then entering the environmental protection operation device 14). The heat tracing mechanism on the supporting platform 1-1 can maintain the temperature of the supporting platform 1-1 to prevent the substances falling onto the supporting platform 1-1 from condensing.

[0126] In summary, in this application, a steam spray gun (the steam inlet pipeline 11-3 is equivalent to a steam spray gun) is used to pressurize and direct the steam in the steam chamber, so as to achieve high-pressure and high-temperature all-round cleaning of the outer walls of the sucker rod and tubing while lifting the sucker rod and tubing, and realize the cleaning of oil stains without leaving the wellhead. In this application, a tubing and sucker rod wax scraper or an adjustable wax scraper is used. For the tubing and sucker rod with serious wax deposition, the external wax deposition and scaling are serious. The tubing and sucker rod are scraped by the tubing and sucker rod wax scraper to remove most of the oil stains and rust and scale. This application sets up an overflow treatment device inside the tubing. The overflow inside the tubing is the residual liquid flowing back out of the wellhead inside the tubing. The overflow treatment device recovers the overflow through the overflow recovery port 12-1 in a closed environment when the overflow just exits the wellhead. The casing inner overflow recovery device of this application disperses the pressure of the liquid flowing back inside the casing and recovers it to the liquid receiving platform, that is, the operating table, for centralized recovery, such as Figure 28 and Figure 29This application independently recovers high-temperature steam through the steam outlet 15-1. It can also connect the gas discharged by the vacuum pump 13-1 to the heat tracing mechanism of the operating platform (other methods can also be used to access steam) to heat the oil stains on the operating platform and prevent the oil stains from condensing in winter. The sealing core (also called the steam sealing rubber core) prevents the steam from rising upwards and can perform the last cleaning and scraping on the tubing and sucker rod. For the operating platform, the operating personnel can stand on it to operate, collect the overflow liquid, and achieve that oil and water do not touch the ground. A guardrail is set on the operating platform to effectively protect the operating personnel. When cleaning the tubing in this application, the tubing is pulled out, the lifted tubing is disassembled, and the inner wall of the tubing is cleaned by hanging from top to bottom.

[0127] In the form of this application with a steam chamber and an operating platform, the oil-water and steam separator separates and recovers all the received overflow liquid and steam, ensuring that the steam recovery on the platform is not affected regardless of the size of the received overflow discharge, and ensuring that oil and water do not touch the ground. According to the annual estimate, 20 sets of this application equipment can be used to implement 1000 well-times, and it is expected to reduce oil soil by 500 m annually. 3 In this application, the operating personnel can wear normal clean work clothes. During the construction process, the rod and tubing are continuously cleaned in a sealed manner, there is no returned liquid at the wellhead, and the liquid is completely recovered. Moreover, the cleaning effect on the inner and outer walls of the sucker rod and tubing meets the process requirements, and the overall operation fully meets the environmental protection requirements and process technology requirements in the oilfield workover field. This application can be used normally in both normal wells and overflow wells. It is reasonably designed, energy-saving and environmentally friendly, meets the HSE standards, meets the needs of field operations, realizes gas-liquid separation while recovering, truly realizes that the waste oil and waste water do not touch the ground, and at the same time, realizes the personal cleaning and hygiene of the personnel during operation. It perfectly solves the problem of secondary pollution.

[0128] The wax removal effect of this device through cleaning meets the requirements of environmental protection workover, achieving the goal of pollution-free operation. The rod and pipe are retrieved clean; there is no oil or water spillage at the work site, and the cleaning fluid is directly recovered in a closed manner. The wax removal effect is equivalent to that of conventional operations. Compared with conventional workover operations, the on-line cleaning and recovery device for pipes and rods of this application has the following advantages: 1. It realizes pollution-free operation construction (the recovery rates of the cleaning fluid and the wellhead returned fluid can reach 100%); 2. Before the workover of the oil well, there is no need to use clean water to kill the well, ensuring timely workover, improving work efficiency, and avoiding the pollution of the oil layer by the kill fluid; 3. After the oil well is repaired and starts pumping, the production time with abnormal water cut is shortened (the produced fluid has normal water cut); 4. High-pressure steam injection (when cleaning the outer wall of the oil rod or tubing, steam injection is achieved through the steam inlet pipeline 11-3. At this time, the steam inlet pipeline 11-3 acts as a steam spray gun) and high-temperature steam closed continuous cleaning replace the surface wax removal by the high-temperature wax removal truck, shortening the construction time and reducing energy consumption at the same time; 5. When cleaning the inner wall of the tubing, an extension pipe of the standby pipeline 11-4 is connected to a steam spray gun and inserted into the tubing to achieve high-speed and efficient cleaning of the inner wall of the tubing, and the cleaned substances fall into the operating platform; 6. The closed continuous cleaning of the oil rod and tubing reduces heat energy loss; 7. Cleaning and reinjection can be carried out simultaneously to solve the problem of excessive fluid in the overflow well.

[0129] In addition, the operation efficiency of this application does not decrease, and the number of supporting personnel is reduced, as shown in the following table

[0130]

[0131] Compared with conventional operations, this application saves 41 minutes in the comparison of construction standards, rod and pipe retrieval, and wax removal stages. As Figure 35 shown in the following table Figure 35 The steam cleaning and closed recovery technology in

[0132]

[0133] Compared with conventional operations, the demand for supporting equipment in this application has decreased, as shown in the following table.

[0134]

[0135] The capital investment in this application has decreased and the benefits have increased. Compared with conventional operations, the investment per well has decreased by 1245 yuan. See Figure 36 and the following table:

[0136] .

Claims

1. An on-line cleaning and recycling device for pipe rods, characterized in that: the device includes a paraffin scraper (2); the paraffin scraper (2) includes a paraffin scraping housing (2-1) and a scraping brush head (5) capable of extending into the paraffin scraping housing (2-1) to scrape and clean the outer wall of the oil rod or oil pipe passing through the paraffin scraping housing (2-1); an overflow recovery port (12-1) is arranged on the side wall of the paraffin scraping housing (2-1); a sealing core is arranged above the paraffin scraping housing (2-1); the sealing core includes a core housing (6) and a plug (7) arranged in the core housing (6), and a through hole (7-1) for the oil rod or oil pipe to pass through is arranged in the plug (7); it further includes an operating platform (1), the operating platform includes a supporting platform (1-1), and the operating platform (1) is connected to the paraffin scraper (2); in the structure of the connection between the operating platform (1) and the paraffin scraper (2): the operating platform (1) is a structure arranged around the paraffin scraper (2), or the operating platform (1) is a non-surrounding structure installed on the side wall or bottom of the paraffin scraper (2); an installation hole (8) is arranged on the supporting platform (1-1) for directly connecting the bottom of the operating platform (1) to the wellhead flange; it further includes a hook (9) used in cooperation with the installation hole (8); the hook (9) is an L-shaped or U-shaped structure; when the hook (9) is an L-shaped structure: the L-shaped structure is composed of a vertical extension rod (9-1) and a horizontal drag rod (9-2), and a bottom tray (9-3) for holding the lower nut (AA-1) below the bolt to keep the bolt in an upright state is arranged on the horizontal drag rod (9-2); when the hook (9) is a U-shaped structure: the U-shaped structure is composed of a vertical extension rod (9-1), a horizontal drag rod (9-2) and a front support vertical rod (9-4), the vertical extension rod (9-1) and the front support vertical rod (9-4) are connected to the horizontal drag rod (9-2) to form a U-shaped structure, and a bottom tray (9-3) for holding the lower nut (AA-1) below the bolt to keep the bolt in an upright state is arranged on the front support vertical rod (9-4); the scraping brush head (5) is connected to the paraffin scraping housing (2-1) through multiple connecting plates, and the multiple connecting plates include a basic connecting plate (4) and an outer connecting plate (26); the multiple connecting plates are of a structure of multiple split units, and each connecting plate unit corresponds to a group of scraping brush heads (5); when the multiple connecting plate units are installed on the paraffin scraping housing (2-1), the scraping brush heads (5) form a structure capable of scraping around the outer wall of the oil rod or oil pipe; the outer connecting plate (26) is installed in the installation port (2-2) on the side wall of the paraffin scraping housing (2-1) during use; a through hole (26-1) is arranged on the outer connecting plate (26), a rear support rod (4-6) is arranged at the rear side of the basic connecting plate (4), the rear support rod (4-6) extends into the through hole (26-1) from the inner end of the through hole (26-1) and can make a telescopic movement relative to the through hole (26-1), and an adjusting bolt (27) extends into the through hole (26-1) from the outer end of the through hole (26-1) and is in threaded cooperation with the through hole (26-1), and the telescopic movement of the basic connecting plate (4) is controlled by screwing the adjusting bolt (27).

2. The on-line cleaning and recycling device for pipe rods according to claim 1, characterized in that: The multi-layer connecting plate further includes an inner connecting plate (4-3). The inner connecting plate (4-3) is connected to the base connecting plate (4) through an elastic support (4-2), and the scraping brush head (5) is arranged on the inner connecting plate (4-3).

3. The on-line cleaning and recycling device for pipe rods according to claim 1, characterized in that: Above the overflow recovery port (12-1) in the wax scraping housing (2-1), a steam chamber (7-2) is further arranged. The steam chamber is arranged above or below the scraping brush head (5) or simultaneously above and below the scraping brush head (5); the steam chamber is provided with a steam inlet (7-2-1).

4. The on-line cleaning and recycling device for pipe rods according to claim 3, characterized in that: The side wall of the wax scraping housing (2-1) is further provided with a steam outlet (15-1); the steam outlet (15-1) is located above the overflow recovery port (12-1).

5. The on-line cleaning and recycling device for pipe rods according to claim 1, characterized in that: The core housing (6) is composed of two separable parts. The plug (7) is also composed of two parts. During use, the two parts of the plug (7) are respectively placed in the two parts of the core housing (6). By closing the core housing (6), the two parts of the plug (7) are buckled, and thus a through hole (7-1) for the supply oil rod or the oil pipe to pass through is formed in the plug (7).

6. The on-line cleaning and recycling device for pipe rods according to claim 5, characterized in that: The core housing (6) is composed of two separable parts, and is further divided into the following two structures, choose one of them: The first form of the core housing (6): The two parts of the core housing (6) are connected by a hinge or a hinge or a rotating shaft so that the core housing (6) forms a structure that can be opened and closed on one side (FF); The second form of the core housing (6): The two parts of the core housing (6) form a structure that can be opened and closed on both sides (EE).

7. The on-line cleaning and recycling device for pipe rods according to claim 5, characterized in that: The side wall of the core housing (6) is provided with a through hole (19). The rear end of the slip jaw (20) extends into the through hole (19). The front end of the slip jaw (20) abuts against the plug (7). A top spring (21) that abuts against the slip jaw (20) is arranged in the through hole (19). The top bolt (22) is in threaded cooperation with the outer end of the through hole (19) and abuts against the top spring (21).

8. The on-line cleaning and recycling device for pipe rods according to claim 1, characterized in that: The top end of the side wall of the wax scraping housing (2-1) is provided with an upper connecting flange (2-1-2). The bottom of the core housing (6) is provided with a connecting sleeve (6-1) that can sleeve the upper connecting flange (2-1-2) during use. During use, the connecting sleeve (6-1) sleeves the upper connecting flange (2-1-2) to complete the connection between the wax scraping device and the sealing core.

9. The on-line cleaning and recycling device for pipe rods according to claim 1, characterized in that: A platform liquid discharge port (1-1-2) is arranged on the supporting platform (1-1).

10. An on-line cleaning and recycling device for tubing and rod, as claimed in claim 9, characterized in that: In the surrounding structure where the operating platform (1) is arranged around the paraffin scraper (2): An operating through-hole (1-1-6) corresponding to the wellhead is provided on the supporting platform (1-1) of the operating platform (1), and the paraffin scraper (2) is installed corresponding to the operating through-hole (1-1-6).

11. An on-line cleaning and recycling device for tubing and rod, as claimed in claim 10, characterized in that: The inner wall of the operating through-hole of the operating platform (1) is connected to the outer wall of the paraffin scraper (2); In the structure where the inner wall of the operating through-hole of the operating platform (1) is connected to the outer wall of the paraffin scraper (2): The bottom of the paraffin scraper (2) is at most flush with the bottom of the supporting platform (1-1) of the operating platform (1).

12. An on-line cleaning and recycling device for tubing and rod, as claimed in claim 11, characterized in that: In the structure where the bottom of the paraffin scraper (2) is at most flush with the bottom of the supporting platform (1-1) of the operating platform (1): An installation flange (3) is provided at the operating through-hole.

13. An on-line cleaning and recycling device for tubing and rod, as claimed in claim 1, characterized in that: The supporting platform (1-1) has a heat tracing mechanism.

14. An on-line cleaning and recycling device for tubing and rod, as claimed in claim 13, characterized in that: The heat tracing mechanism is one of the following two forms: One of the heat tracing mechanisms: The heat tracing mechanism is a heat tracing pipe (10) coiled around the supporting platform (1-1); The second heat tracing mechanism: The supporting platform (1-1) is a hollow sandwich structure (1-1-1), and this sandwich structure (1-1-1) is the heat tracing mechanism. The sandwich structure (1-1-1) is a cavity structure for introducing heat tracing steam, and the sandwich structure (1-1-1) is connected with a sandwich steam inlet and a sandwich steam outlet.

15. An on-line cleaning and recycling device for tubing and rod, as claimed in claim 9, characterized in that: A casing recovery pipeline overflow pipe (25) is provided on the operating platform (1).

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