Oil pipe

Abstract

Annular bodies are arranged on the outer wall of a pipe body in a sleeved mode, a block body is fixed to the surface of the side, away from a shell, of each annular body, a sliding groove is formed in the surface of each block body, an inclined block is slidably connected into the sliding groove, the lower surface of a bent lever is fixedly connected with the top of the inclined block, a first through groove is formed in the opposite position of the outer wall of the shell, and a second through groove is formed in the outer wall of the shell. The curved bar penetrates through the two first through grooves, the threaded sleeve is fixedly arranged on the outer surface of the curved bar, the threaded rod penetrates through the threaded sleeve and is in threaded connection with the threaded sleeve, and the synchronizing mechanism can drive the threaded sleeve to do lifting motion along the threaded rod by driving the threaded rod to rotate, so that the curved bar can be driven to ascend and descend in the vertical direction. The inclined block can drive the block body and the annular body to have a moving trend in the direction close to or away from the shell, and then the end openings of the two pipe bodies are driven to abut against or be separated from each other in the shell, so that assembling or disassembling is achieved. According to the utility model, the pipe bodies can be quickly assembled and disassembled, and the assembling and disassembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling, in particular to an oil pipe. Background Art

[0002] After drilling is completed, oil pipelines are usually used to transport crude oil and natural gas from the oil and gas layers to the surface. The oil pipelines can withstand the pressure generated during the mining process and stably transport crude oil and natural gas from the oil and gas layers to the surface. The pipe bodies of the oil pipelines need to be connected and assembled before drilling begins, and after drilling is completed, the pipe bodies of the oil pipelines need to be disassembled.

[0003] The prior art usually uses a threaded structure to achieve the installation and removal of the pipe body. For example, the Chinese utility model patent with publication number CN118029898A discloses a special threaded short section for connecting oil pipes, which relates to the field of oil production equipment, including oil pipes and short sections. The oil pipes are connected to the short sections through sealing threads. The sealing threads include male and female threads that are spirally matched with each other. The male threads are processed on the outside of the oil pipes, and the female threads are processed on the inside of the short sections. The structures of the male and female threads include screw threads and tooth grooves. The pipe bodies of existing oil pipes are mostly connected by threads at the connection parts, which have problems such as difficulty in installation and removal. Utility Model Content

[0004] One purpose of the utility model is to provide an oil pipe to achieve rapid installation and disassembly between pipe bodies and improve assembly and disassembly efficiency.

[0005] According to the utility model, an oil pipe is provided, including a shell, two tube bodies, an annular body arranged on both sides of the shell, and a bent rod, the annular body being sleeved on the outer wall of the tube body, each of the annular bodies being fixed with a block on the surface of a side away from the shell, the surface of the block having a slide groove, an inclined block being slidably connected inside the slide groove, the lower surface of the bent rod being fixedly connected with the top of the inclined block, the outer wall of the shell being provided with a first through groove at a relative position, and the bent rod passing through the two first through grooves, the threaded sleeve being fixedly arranged on the outer surface of the bent rod, the screw passing through the threaded sleeve and being threadedly connected with the threaded sleeve, the oil pipe also includes a synchronization mechanism for driving the screw to rotate, the synchronization mechanism can drive the threaded sleeve to perform a lifting movement along the screw by driving the screw to rotate, and further can drive the bent rod to lift in a vertical direction, so that the inclined block can drive the block together with the annular body to have a tendency to move toward or away from the shell, and further drive the ports of the two tube bodies to press or separate inside the shell to achieve assembly or disassembly.

[0006] In a preferred embodiment, the synchronization mechanism includes a second through slot, a handle, a gear ring and a gear. The handle is inserted into the interior of the second through slot, and its top protrudes from the second through slot, and the bottom abuts against the bottom surface of the inner cavity of the shell. Part of the handle is located in the inner cavity of the shell and the gear ring is fixedly provided on the outer wall. The gear ring can rotate relative to the inner wall of the shell. The gear is fixedly sleeved on the screw rod, and the gear ring is meshed with the gear. The gear ring can be driven to rotate by rotating the handle, and the gear ring can drive the gear to rotate, and then the screw rod can be driven to rotate.

[0007] In a preferred embodiment, a groove facing one side of the shell is formed inside the annular body, a column is arranged inside the groove, and a side wall of the column is in contact with and fixedly connected to an outer wall of the shell.

[0008] In a preferred embodiment, a vertical rod is fitted in the inner wall gap of the curved rod, and the top and bottom ends of the vertical rod are fixedly connected to the top and bottom ends of the inner wall of the first through slot respectively.

[0009] In a preferred embodiment, the two ports of the tube bodies close to each other are arranged inside the shell and a through plate is arranged between the two ports and pressed against the two ports. The through plate is arranged inside the shell and the outer wall of the through plate is in pressing contact with the inner wall of the shell.

[0010] In a preferred embodiment, first rubber rings are provided on both sides of the port plate in contact with the tube body, and the first rubber rings are tightly fitted against the port of the tube body, and a second rubber ring is tightly fitted against the tube body near the port, the first rubber ring and the second rubber ring are both provided inside the shell, the outer wall of the second rubber ring is sleeved with the inner wall of the shell, and the side of the second rubber ring is tightly fitted against the first rubber ring.

[0011] In a preferred embodiment, the inner wall and outer wall of the tube body are respectively provided with a first high temperature resistant layer and a second high temperature resistant layer, wherein the first high temperature resistant layer is a modified polytetrafluoroethylene layer, and the second high temperature resistant layer is a nano-microporous thermal insulation material layer.

[0012] In a preferred embodiment, the outer wall of the handle is processed with grinding patterns.

[0013] In a preferred embodiment, the curved rod is constructed as an integral symmetrical structure in which a straight rod and an inclined rod are arranged at intervals.

[0014] In a preferred embodiment, the second through slot extends downward from the top of the housing along the arc-shaped contour thereof.

[0015] The utility model has at least the following technical effects:

[0016] The oil pipe described in the utility model can drive the threaded sleeve to perform lifting and lowering movement in the vertical direction of the screw by driving the screw to rotate, and then can drive the curved rod to lift and lower in the vertical direction, so that the inclined block can drive the block body and the annular body to have a tendency to move toward or away from the shell, and then drive the ports of the two pipe bodies to press against or separate from the port plate inside the shell to achieve assembly or disassembly. In the process of the curved rod rising, the inclined block is in tight contact with the slide groove set on the outer surface of the block, and then drives the two pipe bodies to press against and fix the port plate inside the shell; in the process of the curved rod descending, the inclined block is gradually separated from the slide groove set on the outer surface of the block, and then the two pipe bodies are separated from the port plate inside the shell, and then separated from the shell, thereby achieving rapid installation or disassembly between the two pipe bodies and improving assembly and disassembly efficiency.

[0017] According to the utility model, a groove is provided inside the annular body toward one side of the shell, a column is provided inside the groove, and the side wall of the column contacts and is fixedly connected with the outer wall of the shell. When the tube moves into the shell, the tube drives the annular body to move synchronously, and when the annular body moves, it can drive the groove to dock with the column fixed on the outer wall of the shell, so that the tube can be pre-positioned when it moves into the shell, improving convenience.

[0018] According to the utility model, the first rubber ring is provided on both sides of the port plate in contact with the pipe body, and the first rubber ring is tightly fitted with the port of the pipe body, so that the port of the pipe body can be sealed by the first rubber ring. In addition, since the pipe body is tightly fitted with the second rubber ring near the port, the first rubber ring and the second rubber ring are both arranged inside the shell, the outer wall of the second rubber ring is sleeved with the inner wall of the shell, and the side of the second rubber ring is tightly fitted with the first rubber ring, so that the pipe body can be double-sealed at the port and the periphery through the joint sealing effect of the second rubber ring and the first rubber ring, which can effectively prevent accidental leakage of the pipe body during the natural gas transportation process.

[0019] According to the utility model, the inner wall and the outer wall of the pipe body are respectively provided with a first high temperature resistant layer and a second high temperature resistant layer, wherein the first high temperature resistant layer is a modified polytetrafluoroethylene layer, and the second high temperature resistant layer is a nano-microporous thermal insulation material layer. By coordinating the modified polytetrafluoroethylene layer and the nano-microporous thermal insulation material layer, the high temperature resistance of the pipe body is improved, so that the pipe body can stably transport crude oil and natural gas from the oil and gas layer to the surface after entering the high temperature zone. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional structure diagram of the oil pipe according to the utility model is schematically shown;

[0021] Figure 2 The cross-sectional view of the oil pipe according to the utility model is schematically shown;

[0022] Figure 3 The schematic diagram of the structure of the groove and the column according to the utility model is schematically shown;

[0023] Figure 4 The structure diagram of the synchronization mechanism according to the utility model is schematically shown;

[0024] Figure 5 The schematic diagram of the structure of the first rubber ring and the second rubber ring of the oil pipe according to the utility model is shown schematically;

[0025] Figure 6 The schematic diagram schematically shows the structure of the inner wall and the outer wall of the tube body according to the utility model.

[0026] In the present application, all drawings are schematic drawings, which are only used to illustrate the principles of the present utility model and are not drawn according to the actual scale. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it is necessary to understand that the terms "horizontal", "vertical", etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1 and Figure 2As shown, the oil pipe 100 of the utility model comprises: a shell 2 and two tube bodies 1, the shell 2 is constructed as a cylindrical body, the ports of the two tube bodies 1 close to each other are arranged inside the shell 2, and a through plate 3 is arranged between the two ports to press against the two ports, the through plate 3 is arranged inside the shell 2, and the outer wall of the through plate 3 is in press contact with the inner wall of the shell 2. The oil pipe 100 also includes an annular body 801 arranged on both sides of the shell 2, the two annular bodies 801 are sleeved on the outer walls of the two tube bodies 1, each annular body 801 is fixed with a block 802 on the surface of the side away from the shell 2, the surface of the block 802 has a slide groove 803 extending obliquely upward, and the inside of the slide groove 803 is slidably connected with an inclined block 804, the inclined block 804 can drive the block 802 to have a tendency to move toward the shell 2, thereby driving the two tube bodies 1 to press against the through plate 3 inside the shell 2.

[0031] The top of the inclined block 804 is configured as a plane and is fixedly connected to the lower surface of the bent rod 805. The bent rod 805 is configured as an integral symmetrical structure in which a straight rod and an inclined rod are arranged at intervals. The lower surface of the bent rod 805 is fixedly connected to the top of the inclined block 804, and is used to drive the inclined block 804 to do lifting and lowering motion. The outer wall of the housing 2 is provided with first through grooves 806 extending in the vertical direction at relative positions, and the bent rod 805 horizontally passes through two first through grooves 806. A threaded sleeve 807 is fixed to the outer surface located in the center of the bent rod 805, and the threaded sleeve 807 is arranged in the housing 2, and the threaded sleeve 807 can drive the bent rod 805 to rise and fall in the vertical direction. The inner wall of the threaded sleeve 807 has a thread, and a screw rod 808 is arranged in the housing 2, and passes through the threaded sleeve 807 and is threadedly connected thereto. The screw rod 808 is rotatably connected to the inner wall of the housing 2 through a bearing so that the screw rod 808 can rotate relative to the inner wall of the housing 2.

[0032] The oil pipe 100 described in the utility model also includes a synchronization mechanism 9 for driving the screw 808 to rotate. The synchronization mechanism 9 can drive the threaded sleeve 807 to perform lifting and lowering movements along the vertical direction of the screw by driving the screw 808 to rotate, and then can drive the curved rod 805 to lift and lower in the vertical direction, so that the inclined block 804 can drive the block body 802 together with the annular body 801 to have a tendency to move toward or away from the shell 2, and then drive the ports of the two pipe bodies 1 to press against or separate from the port plate 3 inside the shell 2 to achieve assembly or disassembly. Among them, during the rising process of the curved rod 805, the inclined block 804 is in close contact with the slide groove 803 set on the outer surface of the block 802, thereby driving the two tube bodies 1 to be tightly pressed against the through-hole plate 3 inside the shell 2 and fixed inside the shell 2; during the descending process of the curved rod 805, the inclined block 804 is gradually separated from the slide groove 803 set on the outer surface of the block 802, thereby causing the two tube bodies 1 to be separated from the through-hole plate 3 inside the shell 2, and then separated from the shell 2, thereby realizing rapid installation or disassembly between the two tube bodies 1 and improving assembly and disassembly efficiency.

[0033] like Figure 3 As shown, in one or more embodiments, a groove 10 is formed inside the annular body 801 toward one side of the shell 2 , a column 11 is disposed inside the groove 10 , and a side wall of the column 11 is in contact with and fixedly connected to an outer wall of the shell 2 .

[0034] According to the utility model, a groove 10 is provided inside the annular body 801, which faces one side of the housing 2. A column 11 is provided inside the groove 10, and the side wall of the column 11 contacts and is fixedly connected to the outer wall of the housing 2. When the tube 1 moves into the housing 2, the tube 1 drives the annular body 801 to move synchronously. When the annular body 801 moves, the groove 10 can be driven to dock with the column 11 fixed to the outer wall of the housing, so that the tube 1 can be pre-positioned when it moves into the housing 2, thereby improving convenience.

[0035] In one or more embodiments, the inner wall gap of the curved rod 805 is matched with a vertical rod 6, the top and bottom ends of the vertical rod 6 are respectively fixedly connected to the top and bottom ends of the inner wall of the first through groove 806, and the vertical rod 6 is used to support the curved rod 805.

[0036] like Figure 4 As shown, in one or more embodiments, the synchronization mechanism 9 is disposed at one end of the outer wall of the housing 2, and the synchronization mechanism 9 includes a second through slot 901, a handle 902, a gear ring 903, and a gear 904. The second through slot 901 extends downward from the top of the housing 2 along its arc-shaped profile, and the second through slot 901 is configured to be arc-shaped. The handle 902 is penetrated inside the second through slot 901, and the top of the handle 902 protrudes from the second through slot 901 to facilitate the operator to operate the handle 902. The bottom of the handle 902 abuts against the bottom surface of the inner cavity of the housing 2. The handle 902 can rotate relative to the bottom surface of the inner cavity of the shell 2. Part of the handle 902 is located in the inner cavity of the shell 2 and a gear ring 903 is fixedly provided on the outer wall. The outer wall of the gear ring 903 is rotatably connected to the inner wall of the shell 2 through a bearing so that the gear ring 903 can rotate relative to the inner wall of the shell 2. A gear 904 is fixedly sleeved on the screw 808, and the gear ring 903 is meshed with the gear 904. By rotating the handle 902, the gear ring 903 can be driven to rotate, and the gear ring 903 can drive the gear 904 to rotate, thereby driving the screw 808 to rotate.

[0037] Specifically, when the two tube bodies 1 are docked with the inner wall of the shell 2, and the ports of the two tube bodies 1 that are close to each other are fitted with the through-port plate 3, the handle 902 is rotated to drive the ring gear 903 to rotate on the inner wall of the shell 2. During the rotation of the ring gear 903, the two gears 904 and the corresponding screw rod 808 can be driven to rotate synchronously, and the screw rod 808 can then drive the threaded sleeve 807 to move in the vertical direction. During the movement of the threaded sleeve 807, the corresponding two curved rods 805 can be driven to move up and down in the vertical direction, and the curved rod 805 can then drive the corresponding inclined block 804 to move synchronously. Among them, during the rising process of the curved rod 805, the inclined block 804 is in close contact with the slide groove 803 set on the outer surface of the block 802, thereby driving the two tube bodies 1 to be tightly pressed against the through-hole plate 3 inside the shell 2 and fixed inside the shell 2; during the descending process of the curved rod 805, the inclined block 804 is gradually separated from the slide groove 803 set on the outer surface of the block 802, thereby causing the two tube bodies 1 to be separated from the through-hole plate 3 inside the shell 2, and then separated from the shell 2, thereby realizing rapid installation or disassembly between the two tube bodies 1 and improving assembly and disassembly efficiency.

[0038] like Figure 5 As shown, in one or more embodiments, first rubber rings 4 are provided on both sides of the port plate 3 in contact with the tube body 1, and the first rubber ring 4 is tightly fitted against the port of the tube body 1, and a second rubber ring 5 is tightly fitted against the tube body 1 near the port, the first rubber ring 4 and the second rubber ring 5 are both provided inside the shell 2, the outer wall of the second rubber ring 5 is sleeved with the inner wall of the shell 2, and the side of the second rubber ring 5 is tightly fitted against the first rubber ring 4.

[0039] According to the utility model, the first rubber ring 4 is provided on both sides of the port plate 3 in contact with the pipe body 1, and the first rubber ring 4 is tightly fitted with the port of the pipe body 1, so that the port of the pipe body 1 can be sealed by the first rubber ring 4. In addition, since the pipe body 1 is tightly fitted with the second rubber ring 5 near the port, the first rubber ring 4 and the second rubber ring 5 are both arranged inside the shell 2, the outer wall of the second rubber ring 5 is sleeved with the inner wall of the shell 2, and the side of the second rubber ring 5 is tightly fitted with the first rubber ring 4, so that the pipe body 1 can be double-sealed at the port and the periphery through the joint sealing effect of the second rubber ring 5 and the first rubber ring 4, which can effectively prevent the pipe body 1 from accidentally leaking during the natural gas transportation process.

[0040] like Figure 6As shown, in one or more embodiments, the inner wall and outer wall of the tube body 1 are respectively provided with a first high temperature resistant layer 701 and a second high temperature resistant layer 702, wherein the first high temperature resistant layer 701 is a modified polytetrafluoroethylene layer, and the second high temperature resistant layer 702 is a nano-microporous thermal insulation material layer. The first high temperature resistant layer 701 and the second high temperature resistant layer 702 are both provided on the inner wall and the outer wall of the two tube bodies 1 by spraying. The modified polytetrafluoroethylene layer 701 is a non-metallic material obtained by changing the molecular chain structure of polytetrafluoroethylene, and the non-metallic material has low friction coefficient, wear resistance, high temperature resistance and compression stability under high pressure (45MPa). The nano-microporous thermal insulation material layer 702 is a composite material derived from aerogel, which is made of nano-silicon dioxide aerogel as the main material and is compounded by a special process. It is a flexible thermal insulation felt with low thermal conductivity and has the characteristics of softness, easy cutting, low density, inorganic fireproof, hydrophobicity, etc., and can replace traditional flexible thermal insulation materials such as glass fiber products and asbestos thermal insulation felt.

[0041] According to the utility model, the inner wall and the outer wall of the pipe body 1 are respectively provided with a first high temperature resistant layer 701 and a second high temperature resistant layer 702, wherein the first high temperature resistant layer 701 is a modified polytetrafluoroethylene layer, and the second high temperature resistant layer 702 is a nano-microporous thermal insulation material layer. By coordinating the modified polytetrafluoroethylene layer and the nano-microporous thermal insulation material layer, the high temperature resistance of the pipe body 1 is improved, so that the pipe body 1 can stably transport crude oil and natural gas from the oil and gas layer to the surface after entering the high temperature zone.

[0042] In one or more embodiments, the outer wall of the handle 902 is processed with grinding texture.

[0043] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An oil pipe, characterized in that: include: A shell, two tubes, an annular body and a curved rod arranged on both sides of the shell, the annular body is sleeved on the outer wall of the tube, each of the annular bodies is fixed with a block on the surface of the side away from the shell, the surface of the block has a slide groove, the inside of the slide groove is slidably connected with an inclined block, the lower surface of the curved rod is fixedly connected to the top of the inclined block, the outer wall of the shell is provided with a first through groove at a relative position, and the curved rod passes through the two first through grooves, a threaded sleeve is fixedly arranged on the outer surface of the curved rod, a screw passes through the threaded sleeve and is threadedly connected to the threaded sleeve, The oil pipe also includes a synchronization mechanism for driving the screw to rotate. The synchronization mechanism can drive the threaded sleeve to move up and down along the screw by driving the screw to rotate, and then drive the curved rod to move up and down in the vertical direction, so that the inclined block can drive the block body together with the annular body to move toward or away from the shell, and then drive the ports of the two pipe bodies to press or separate inside the shell to achieve assembly or disassembly.

2. The oil pipe according to claim 1, characterized in that: The synchronization mechanism includes a second through slot, a handle, a gear ring and a gear. The handle is inserted into the second through slot, and its top protrudes from the second through slot, and its bottom abuts against the bottom surface of the inner cavity of the shell. Part of the handle is located in the inner cavity of the shell and the gear ring is fixedly provided on the outer wall. The gear ring can rotate relative to the inner wall of the shell. The gear is fixedly sleeved on the screw rod, and the gear ring is meshed with the gear. The handle can be rotated to drive the gear ring to rotate, and the gear ring can drive the gear to rotate, and further drive the screw to rotate.

3. The oil pipe according to claim 1 or 2, characterized in that: A groove facing one side of the shell is formed inside the annular body, a column is arranged inside the groove, and a side wall of the column contacts and is fixedly connected to an outer wall of the shell.

4. The oil pipe according to claim 3, characterized in that: The inner wall gap of the curved rod is matched with a vertical rod, and the top and bottom ends of the vertical rod are fixedly connected to the top and bottom ends of the inner wall of the first through groove respectively.

5. The oil pipe according to claim 1, characterized in that: The two ports of the tube bodies close to each other are arranged inside the shell, and a through plate is arranged between the two ports and pressed against the two ports. The through plate is arranged inside the shell, and the outer wall of the through plate is in pressing contact with the inner wall of the shell.

6. The oil pipe according to claim 5, characterized in that: A first rubber ring is provided on both sides of the port plate in contact with the tube body, and the first rubber ring is tightly fitted against the port of the tube body, and a second rubber ring is tightly fitted against the tube body near the port, the first rubber ring and the second rubber ring are both provided inside the shell, the outer wall of the second rubber ring is sleeved with the inner wall of the shell, and the side of the second rubber ring is tightly fitted against the first rubber ring.

7. The oil pipe according to claim 1, characterized in that: The inner wall and the outer wall of the tube body are respectively provided with a first high temperature resistant layer and a second high temperature resistant layer, wherein the first high temperature resistant layer is a modified polytetrafluoroethylene layer, and the second high temperature resistant layer is a nano-microporous heat insulation material layer.

8. The oil pipe according to claim 2, characterized in that: The outer wall of the handle is processed with grinding patterns.

9. The oil pipe according to claim 1, characterized in that: The curved rod is constructed as an integral symmetrical structure in which a straight rod and an inclined rod are arranged at intervals.

10. The oil pipe according to claim 2, characterized in that: The second through slot extends downward from the top of the housing along the arc-shaped contour thereof.

Images