A downhole well logging instrument cleaning apparatus

Abstract

The utility model discloses a kind of downhole logging instrument cleaning equipment, it is related to downhole instrument maintenance equipment technical field, the above-mentioned downhole logging instrument cleaning equipment includes frame body, several drive rollers, spray pipe, cleaning assembly, collection tank and anti-drop component, the axis of several drive rollers is arranged in parallel, and all are installed in frame body, spray pipe is installed in frame body, spray pipe is connected with water supply equipment, cleaning assembly includes at least one first cleaning roller, first cleaning roller is parallel with drive roller axis, and is rotatably installed in frame body, anti-drop component includes anti-drop piece, anti-drop piece is installed in frame body, collection tank is installed in frame body, and located below drive roller, the device removes sludge and sundries on downhole logging instrument, to achieve the purpose of cleaning thoroughly further, wastewater produced by cleaning is collected and stored by collection tank, to facilitate wastewater centralized treatment, avoid wastewater pollution site, facilitate the maintenance and use of downhole logging instrument.

Description

Technical Field

[0001] This utility model relates to the field of downhole instrument maintenance equipment technology, and more specifically, to a downhole logging instrument cleaning device. Background Technology

[0002] Well logging downhole instruments are used to detect inside the wellbore. Therefore, well logging downhole instruments are generally cleaned at the well site. Due to equipment and time limitations, the cleaning effect is generally not good. In addition, well logging downhole instruments need to be maintained regularly. In particular, before maintenance and repair, further cleaning is required to ensure maintenance efficiency and quality.

[0003] Because well logging instruments are inserted into the well for detection, the water used for cleaning these instruments needs to undergo sedimentation and filtration to meet environmental protection requirements before being discharged. Cleaning well logging instruments outdoors presents challenges in wastewater collection, and current cleaning equipment often yields poor cleaning results.

[0004] In conclusion, how to provide a cleaning device that provides good cleaning effect and easy wastewater collection is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a downhole logging instrument cleaning device that can effectively clean downhole logging instruments, improve the cleaning effect, and collect cleaning wastewater in a centralized manner, which is beneficial for subsequent centralized treatment.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A downhole logging instrument cleaning device, comprising:

[0008] Frame;

[0009] A plurality of drive rollers and roller drive components are provided. The axes of the plurality of drive rollers are arranged in parallel and are all mounted on the frame. The roller drive components are mounted on the frame and are used to control the rotation of the plurality of drive rollers.

[0010] A spray pipe is installed on the frame and connected to a water supply device;

[0011] A cleaning assembly, the cleaning assembly including at least one first cleaning roller, the first cleaning roller being parallel to the axis of the drive roller and rotatably mounted on the frame;

[0012] A collection trough is installed on the frame and located below the drive roller;

[0013] An anti-detachment component, comprising an anti-detachment element, which is installed on the frame.

[0014] Furthermore, this utility model also includes:

[0015] The housing has a frame placed inside it. The housing has a feed hole and a discharge hole on the same axis. The bottom of the housing has a drain port. The housing has an observation window and a control panel. A controller is installed inside the housing. The roller drive and the control panel are electrically connected to the controller. The collection tank is connected to the drain port. A control valve is installed at the drain port.

[0016] Furthermore, the present invention includes a guide plate installed on the collection tank, a guide hole provided on the guide plate, and a filter element installed at the guide hole.

[0017] Furthermore, the filter element is a filter screen, which is detachably installed on the guide plate.

[0018] Furthermore, the cleaning component further includes:

[0019] A second cleaning roller is located above the first cleaning roller, and cleaning brushes are installed on both the first and second cleaning rollers.

[0020] A drive unit, which controls the rotation of the first cleaning roller and the second cleaning roller.

[0021] Furthermore, in this invention, both the first cleaning roller and the second cleaning roller rotate in the opposite direction to the rotation direction of the driving roller.

[0022] Furthermore, the cleaning component further includes:

[0023] A support column is installed on the frame, and the second cleaning roller is rotatably installed on the support column.

[0024] Furthermore, the cleaning component further includes:

[0025] An adjusting member, the length of which is adjustable, one end of which is hinged to the frame, the support column is hinged to the frame, and the end of the adjusting member away from the frame is hinged to the end of the support column away from the frame.

[0026] Furthermore, the present invention includes two sets of anti-detachment components, which are located at both ends of the frame. There are two anti-detachment parts, which are respectively hinged to both sides of the frame along the axis of the drive roller. Each anti-detachment part includes a driving part and a driven part. The driving part and the driven part are arranged in an L-shape. The driven part is provided with a clamping part at the end away from the driving part. The clamping part is a semi-circular ring structure with the opening facing away from the frame.

[0027] Furthermore, the anti-detachment component of this utility model also includes:

[0028] An elastic element is provided for controlling the two drive units to rotate toward each other.

[0029] The downhole logging instrument cleaning equipment provided by this utility model consists of several drive rollers, a spray pipe, a cleaning component, a collection tank, and an anti-detachment component all mounted on a frame. The drive rollers move the downhole logging instrument, eliminating the need for manual pushing and reducing the difficulty and labor costs of cleaning. The spray pipe is installed on the frame and connected to a water supply system. When the downhole logging instrument passes through the spray pipe, it is wetted, effectively removing sludge and increasing the difficulty of subsequent cleaning. The cleaning component includes at least one first cleaning roller, which is connected to the drive roller... The wheels are parallel to each other and rotatably mounted on the frame. Therefore, when the downhole logging instrument passes through the first cleaning roller, it is effectively cleaned by the first cleaning roller, removing sludge and debris from the downhole logging instrument, thus achieving the purpose of cleaning. The wastewater generated during cleaning is collected and stored in the collection tank for centralized treatment, avoiding wastewater pollution of the site. The anti-detachment component prevents the downhole logging instrument from falling off the frame, protecting the downhole logging instrument and avoiding damage and unnecessary collisions during cleaning, thereby ensuring effective cleaning of the downhole logging instrument and facilitating its maintenance and use. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 A structural diagram of the overall structure provided by this utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the collection tank provided by this utility model;

[0033] Figure 3This is a schematic diagram of the collection trough installed on the axial side of the overall structure according to this utility model.

[0034] Figure 4 This is a schematic diagram of the collection trough installed on the side of the overall structure according to the present invention.

[0035] Figure 5 This is a schematic diagram of the overall mounting box provided by this utility model.

[0036] Figures 1-5 In the accompanying drawings, the reference numerals include:

[0037] 1. Frame; 2. Drive roller; 3. Spray pipe; 4. Cleaning assembly; 401. Adjusting component; 402. Cleaning brush; 403. Second cleaning roller; 404. Support column; 405. First cleaning roller; 5. Collection tank; 501. Guide plate; 502. Filter element; 6. Anti-detachment assembly; 601. Anti-detachment component; 602. Elastic component; 7. Housing; 701. Control panel. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] The core of this utility model is to provide a downhole logging instrument cleaning device, which can effectively clean downhole logging instruments, improve the cleaning effect, and collect cleaning wastewater in a centralized manner, which is beneficial for subsequent centralized treatment.

[0040] Please refer to Figure 3 A downhole logging instrument cleaning device includes a frame 1, several drive rollers 2, a spray pipe 3, a cleaning component 4, a collection tank 5, and an anti-detachment component 6. The axes of the drive rollers 2 are arranged in parallel and are all installed on the frame 1. The spray pipe 3 is installed on the frame 1 and connected to a water supply device. The cleaning component 4 includes at least one first cleaning roller 405, which is parallel to the axis of the drive rollers 2 and rotatably installed on the frame 1. The anti-detachment component 6 includes an anti-detachment element 601, which is installed on the frame 1. The collection tank 5 is installed on the frame 1 and located below the drive rollers 2.

[0041] It should be noted that the frame 1 in this embodiment of the present invention can be made of any shape or material.

[0042] Optionally, in some embodiments, casters are installed at the bottom of the frame 1 to facilitate the movement of the device.

[0043] Optionally, in some embodiments, the drive rollers 2 are synchronously driven by belts. Specifically, each drive roller 2 has a wheel installed at its end, and adjacent wheels are connected by belt drive.

[0044] Optionally, in some embodiments, the drive roller 2 is a concave roller, which is beneficial for its fit against the downhole logging instrument.

[0045] Optionally, in some embodiments, the outer circumferential surface of the drive roller 2 is provided with an anti-slip layer, which is made of rubber or silicone, which is beneficial to the protection of downhole logging instruments and can also play an anti-slip role.

[0046] Optionally, in some embodiments, the spray pipe 3 is provided with a plurality of spray nozzles, and a high-pressure nozzle is installed at the spray nozzle. The high-pressure nozzle increases the flow rate of the water jet, and the high-velocity water jet can wash away the sludge on the outer surface of the downhole logging instrument.

[0047] Optionally, in some embodiments, the spray pipe 3 is annular, and a plurality of spray nozzles are evenly distributed along the axis of the spray pipe 3.

[0048] Optionally, in some embodiments, the anti-detachment component 601 is a stop bar or baffle, specifically, it is installed on the frame 1 and located on both sides of the frame 1, and can be used to prevent downhole logging instruments from falling off.

[0049] In use, several drive rollers 2, spray pipes 3, cleaning components 4, collection tanks 5, and anti-detachment components 6 are all installed on the frame 1. The drive rollers 2 are used to move the downhole logging instrument, avoiding the need for manual pushing and reducing the difficulty and labor cost of cleaning. The spray pipes 3 are installed on the frame 1 and connected to the water supply equipment. When the downhole logging instrument passes through the spray pipes 3, it is wetted, and at the same time, it can effectively remove the sludge on the downhole logging instrument, increasing the difficulty of subsequent cleaning. The cleaning components 4 include at least one first cleaning roller 405, which is parallel to the axis of the drive rollers 2. The instrument is rotatably mounted on the frame 1. Therefore, when the downhole logging instrument passes through the first cleaning roller 405, it is effectively cleaned by the first cleaning roller 405, removing sludge and debris from the downhole logging instrument, thereby achieving the purpose of cleaning. The wastewater generated during cleaning is collected and stored in the collection tank 5 for centralized treatment, avoiding wastewater pollution of the site. The anti-detachment component 601 can prevent the downhole logging instrument from falling off the frame 1, thereby protecting the downhole logging instrument and avoiding damage and unnecessary collisions during cleaning, thus ensuring effective cleaning of the downhole logging instrument and facilitating its maintenance and use.

[0050] Please refer to Figure 5 In some embodiments, the system also includes a housing 7, with the frame 1 placed inside the housing 7. The housing 7 has an inlet and an outlet located on the same axis, and a drain outlet at the bottom. The housing 7 also has an observation window and a control panel 701. A controller is installed inside the housing 7, and the control panel 701 is electrically connected to the controller. In other words, the housing 7 houses the frame 1 and all components, which protects the components and prevents splashing of wastewater generated during rinsing, thus improving the concentration of wastewater. The collected wastewater is discharged through the drain outlet at the bottom. The downhole logging instrument enters the housing 7 through the inlet and exits through the outlet. The observation window allows for observation of the cleaning effect of the downhole logging instrument from the outside of the housing 7, and the controller controls the drive motor of the drive roller 2.

[0051] Optionally, in some embodiments, since outdoor cleaning is also easily affected by cold and freezing environments, especially in the north where long-term freezing makes outdoor cleaning more difficult, a heating tube is installed inside the housing 7. Specifically, the heating tube is electrically connected to the controller to increase the temperature inside the housing 7, thereby preventing the cleaning water from freezing on the surface of the well logging instrument during the cleaning process, reducing damage to it, and improving the cleaning effect.

[0052] In the above embodiments, the heating element can heat the water spray pipe, thereby heating the temperature of the cleaning water.

[0053] Optionally, in some embodiments, a drying assembly is installed inside the housing 7. Specifically, the drying assembly includes a dryer and a blower, both of which are electrically connected to the control unit. Both the dryer and the blower are located on the side of the first cleaning roller 405 away from the water spray pipe. Therefore, after cleaning is completed, the surface of the downhole logging instrument is dried by the dryer and the blower, which helps to keep it dry after it is sent out of the housing 7.

[0054] Optionally, in some embodiments, the collection tank 5 is connected to the drain outlet, and a control valve is installed at the drain outlet. When it is necessary to centrally treat the cleaning wastewater, the control valve can be opened to discharge the wastewater in the collection tank 5.

[0055] Please refer to Figure 2 In some embodiments, a guide plate 501 is installed on the collection tank 5. The guide plate 501 is provided with a guide hole, and a filter element 502 is installed at the guide hole. That is, the wastewater is guided by the guide plate 501 to flow into the guide hole, and then filtered by the filter element 502 to achieve dry and wet separation and reduce the difficulty of centralized wastewater treatment.

[0056] Optionally, in some embodiments, the filter element 502 is a filter screen, which is detachably installed on the guide plate 501, facilitating its removal for cleaning.

[0057] In the above embodiments, the filter screen can be detachable by means of snap-fit ​​connection or bolt connection.

[0058] Please refer to Figure 1 In some embodiments, the cleaning component 4 further includes a second cleaning roller 403 and a drive unit. The second cleaning roller 403 is located above the first cleaning roller 405. Both the first cleaning roller 405 and the second cleaning roller 403 are equipped with cleaning brushes 402. The drive unit is used to control the rotation of the first cleaning roller 405 and the second cleaning roller 403. That is, the downhole logging instrument is sandwiched between the first cleaning roller 405 and the second cleaning roller 403, thereby cleaning the downhole logging instrument more thoroughly. At the same time, the cleaning brushes 402 installed on the first cleaning roller 405 and the second cleaning roller 403 provide a more thorough and comprehensive cleaning of the surface of the downhole logging instrument, which is beneficial for cleaning stubborn debris on the surface of the downhole logging instrument. Furthermore, the drive unit controls the rotation of the first cleaning roller 405 and the second cleaning roller 403, and the speed difference with the travel speed of the downhole logging instrument improves the cleaning effect on the downhole logging instrument.

[0059] Optionally, in some embodiments, a rotating wheel is installed at the end of both the first cleaning roller 405 and the second cleaning roller 403, and the rotation of the first cleaning roller 405 and the second cleaning roller 403 can be controlled by connecting the driving component to the rotating wheel.

[0060] Optionally, in some embodiments, the cleaning brush 402 is made of polyethylene or sponge or similar material.

[0061] Optionally, in some embodiments, a gear is installed at the end of the first cleaning roller 405, and a gear meshing with the gear is installed on the adjacent drive roller 2, so that the first cleaning roller 405 can rotate in the opposite direction through gear meshing.

[0062] Optionally, in some embodiments, both the first cleaning roller 405 and the second cleaning roller 403 rotate in the opposite direction to the rotation direction of the driving roller 2. The reverse rotation can further enhance the cleaning effect on the downhole logging instrument.

[0063] Please refer to Figure 2 In some embodiments, the cleaning component 4 further includes a support column 404, which is mounted on the frame 1, and the second cleaning roller 403 is rotatably mounted on the support column 404.

[0064] Optionally, in some embodiments, a slider is slidably mounted on the support column 404, and the second cleaning roller 403 is rotatably mounted on the slider. The height of the second cleaning roller 403 can be adjusted by sliding the slider on the support column 404.

[0065] In the above embodiment, a limit bolt is threaded on the slider. When it is necessary to fix its position, the limit bolt is screwed on to tighten it against the support column 404.

[0066] Please continue to refer to this. Figure 2 In some embodiments, the cleaning component 4 further includes an adjusting member 401. The length of the adjusting member 401 is adjustable. One end of the adjusting member 401 is hinged to the frame 1, and the support column 404 is hinged to the frame 1. The end of the adjusting member 401 away from the frame 1 is hinged to the end of the support column 404 away from the frame 1. That is, a triangular structure is formed between the adjusting member 401 and the support column 404. Therefore, when the length of the adjusting member 401 is adjusted, the inclination angle of the support column 404 changes, thereby changing the height of the second cleaning roller 403. This allows the second cleaning roller 403 to be used for cleaning downhole logging instruments of different diameters, thereby improving the versatility of the device.

[0067] Optionally, in some embodiments, the adjusting member 401 may be a screw and a threaded cylinder. Specifically, the screw is rotatably mounted on the support column 404, and the threaded cylinder is rotatably mounted on the frame 1. When it is necessary to adjust its length, the length can be changed by screwing the threaded cylinder.

[0068] Optionally, in some embodiments, the adjusting member 401 may use structural components such as cylinders or electric cylinders to realize its telescopic function.

[0069] Please refer to Figure 1 In some embodiments, the anti-detachment components 6 are in two sets, located at both ends of the frame 1 respectively. There are two anti-detachment parts 601, which are respectively hinged to both sides of the frame 1 along the axis of the drive roller 2. The anti-detachment part 601 includes a driving part and a driven part, which are arranged in an L-shape. The driven part is provided with a clamping part at the end away from the driving part. The clamping part is a semi-circular ring structure with the opening facing away from the frame 1. That is to say, by rotating the two anti-detachment parts 601, the clamping parts of the two anti-detachment parts 601 can be brought closer to each other to tighten the downhole logging instrument. At the same time, since the clamping part is a semi-circular ring structure, it can still effectively tighten the downhole logging instrument and prevent it from falling off when the clamping part is subjected to the weight of the downhole logging instrument and moves down.

[0070] Optionally, in some embodiments, the anti-detachment component 6 further includes an elastic element 602, which controls the two driving parts to rotate in a direction of approaching each other, thereby controlling the two clamping parts to approach each other.

[0071] Optionally, in some embodiments, the contact area between the clamping part and the downhole logging instrument is made of materials such as rubber or sponge, which helps to reduce wear on the downhole logging instrument and can also scrape off sludge from the surface of the downhole logging instrument.

[0072] Optionally, in some embodiments, the elastic element 602 may be made of a material or structure with elastic deformation, such as a spring or rubber band.

[0073] In other words, the key point of this utility model embodiment is: the use of drive roller 2 to drive the downhole logging instrument avoids the need for manual pushing, reducing the difficulty and labor cost of cleaning. Spray pipe 3 is installed on the frame 1 and connected to the water supply equipment. When the downhole logging instrument passes through the spray pipe 3, it is wetted, effectively removing sludge from the instrument and increasing the difficulty of subsequent cleaning. The cleaning component 4 includes at least one first cleaning roller 405, which is parallel to the axis of the drive roller 2 and rotatably mounted on the frame 1. Therefore, when the downhole logging instrument passes through the first cleaning roller 405, it is effectively cleaned by the first cleaning roller 405, removing sludge and debris from the downhole logging instrument, thereby achieving the purpose of cleaning. The wastewater generated during cleaning is collected and stored in the collection tank 5 for centralized treatment, avoiding wastewater pollution of the site. The anti-detachment component 601 can prevent the downhole logging instrument from falling off the frame 1, realizing the protection of the downhole logging instrument, avoiding damage and unnecessary collisions during the cleaning of the downhole logging instrument, thereby ensuring effective cleaning of the downhole logging instrument and facilitating the maintenance and use of the downhole logging instrument.

[0074] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0075] The above provides a detailed description of the downhole logging instrument cleaning equipment provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A downhole logging instrument cleaning device, characterized in that, include: Frame (1); A plurality of drive rollers (2) and roller drive components, wherein the axes of the plurality of drive rollers (2) are arranged in parallel and are all mounted on the frame (1), and the roller drive components are mounted on the frame (1) and are used to control the rotation of the plurality of drive rollers (2); Sprinkler pipe (3), the sprinkler pipe (3) is installed on the frame (1), and the sprinkler pipe (3) is connected to the water supply equipment; The cleaning assembly (4) includes at least one first cleaning roller (405), which is parallel to the axis of the drive roller (2) and is rotatably mounted on the frame (1). Collection trough (5), which is installed on the frame (1) and located below the drive roller (2); Anti-detachment component (6), the anti-detachment component (6) includes an anti-detachment element (601), the anti-detachment element (601) is installed on the frame (1).

2. The downhole logging instrument cleaning equipment according to claim 1, characterized in that, Also includes: The box (7) is placed inside the frame (1). The box (7) has a feed hole and a discharge hole on the same axis. The bottom of the box (7) has a drain port. The box (7) has an observation window and a control panel (701). The box (7) is equipped with a controller. The roller drive and the control panel (701) are electrically connected to the controller. The collection tank (5) is connected to the drain port. A control valve is installed at the drain port.

3. The downhole logging instrument cleaning equipment according to claim 1, characterized in that, A guide plate (501) is installed on the collection tank (5), and a guide hole is provided on the guide plate (501). A filter element (502) is installed at the guide hole.

4. The downhole logging instrument cleaning equipment according to claim 3, characterized in that, The filter element (502) is a filter screen, which is detachably installed on the guide plate (501).

5. The downhole logging instrument cleaning equipment according to claim 2, characterized in that, The cleaning component (4) also includes: The second cleaning roller (403) is located above the first cleaning roller (405), and cleaning brushes (402) are installed on both the first cleaning roller (405) and the second cleaning roller (403). A drive unit for controlling the rotation of the first cleaning roller (405) and the second cleaning roller (403).

6. The downhole logging instrument cleaning equipment according to claim 5, characterized in that, Both the first cleaning roller (405) and the second cleaning roller (403) rotate in the opposite direction to the rotation direction of the drive roller (2).

7. The downhole logging instrument cleaning equipment according to claim 6, characterized in that, The cleaning component (4) also includes: A support column (404) is installed on the frame (1), and the second cleaning roller (403) is rotatably installed on the support column (404).

8. The downhole logging instrument cleaning equipment according to claim 7, characterized in that, The cleaning component (4) also includes: Adjustable member (401), the length of the adjustable member (401) is adjustable, one end of the adjustable member (401) is hinged to the frame (1), the support column (404) is hinged to the frame (1), and the end of the adjustable member (401) away from the frame (1) is hinged to the end of the support column (404) away from the frame (1).

9. A downhole logging instrument cleaning device according to any one of claims 1-8, characterized in that, The anti-detachment components (6) are in two sets and are located at both ends of the frame (1). There are two anti-detachment parts (601) and they are respectively hinged to both sides of the frame (1) along the axis of the drive roller (2). The anti-detachment part (601) includes a driving part and a driven part. The driving part and the driven part are arranged in an L-shape. The driven part is provided with a clamping part at the end away from the driving part. The clamping part is a semi-circular ring structure with the opening facing away from the frame (1).

10. A downhole logging instrument cleaning device according to claim 9, characterized in that, The anti-detachment component (6) also includes: An elastic element (602) is used to control the two drive units to rotate in a direction that brings them closer to each other.

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