Oil and gas field cable passing oil pipe coupling

Abstract

The utility model relates to the technical field of shaft interior detection, in particular to an oil and gas field cable passing tubing coupling which comprises a tubing mechanism, the outer surface of the tubing mechanism is movably connected with the inner wall of a cable protection mechanism, and the outer wall of the tubing mechanism is movably connected with the inner wall of a pressure instrument fixing mechanism. The inner wall of a pressure instrument fixing mechanism is fixedly connected with the outer wall of an extrusion mechanism, a first fixing frame is arranged on the outer wall of an oil pipe body in a sleeving mode through a first hoop groove, a cable body is placed in a protection groove, the cable body is protected through a protection steel plate, and a series of protection devices installed for protecting the cable body as needed are omitted; compared with the prior art, other tools do not need to be additionally arranged at the position of the coupling to protect the cable body, the cable body can be protected through the protruding protection steel plate integrally welded to the coupling, a traditional embedded type and an external type are eliminated, the defect that an external pressure gauge fixing device is large in occupied space is overcome, and the problem of diameter shrinkage of a built-in supporting cylinder is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wellbore internal detection, in particular to a cable oil pipe coupling for an oil and gas field. Background Art

[0002] At present, in order to increase oil and gas production, oil and gas fields need to obtain key data such as internal wellbore pressure and temperature. Relevant instruments and cables are needed to complete data collection. To ensure data transmission, downhole tools need to be separately configured for each specification of oil pipe to protect the transmission channel of cable signals.

[0003] The signal acquisition is mainly composed of instruments and cables. The instrument is installed at the lowest end of the oil pipe string by the instrument fixing device bracket, and its signal is led to the ground receiving device through the cable. The instrument fixing schemes in the prior art are either internally embedded or externally installed. After the installation is completed, the oil pipe is lowered, and the cable is laid on the oil pipe while the oil pipe is lowered. The cable is fixed to the oil pipe through a jumper protector or a straightener. First of all, the conventional protector tool occupies a large space in the oil casing, which increases the risk of falling off and getting stuck in the well due to scratches. With the widespread application of horizontal wells and small casing wells, equipment and tools that occupy a large space in the oil casing will not be able to enter the well smoothly, increasing the risk of getting stuck in the well. Secondly, the internal embedding has high production costs and strict welding requirements. The external type occupies a large space outside the oil pipe, and the oil casing annulus is narrow and cannot be lowered into the wellbore. In addition, the external device basically has scratches when it is lowered into most wells, which causes instrument vibration and oil casing wear, affecting the stability of the product and the wellbore. Utility Model Content

[0004] The purpose of the utility model is to provide an oil and gas field cable oil pipe coupling to solve the problem that the conventional protector tool mentioned in the above background technology occupies a large space in the oil casing, and increases the risk of falling off and getting stuck in the well due to scratches. With the widespread application of horizontal wells and small casing wells, equipment and tools that occupy a large space in the oil casing will not be able to enter the well smoothly, increasing the risk of getting stuck in the well. Secondly, the embedded production cost is high, the welding requirements are strict, the external type occupies a large space outside the oil pipe, and the oil casing annulus is narrow and cannot be lowered into the wellbore. To achieve the above purpose, the utility model provides the following technical solutions: an oil and gas field cable oil pipe coupling, including an oil pipe mechanism, the outer surface of the oil pipe mechanism is movably connected to the inner wall of the cable protection mechanism, and the outer wall of the oil pipe mechanism is movably connected to the inner wall of the pressure instrument fixing mechanism.

[0005] The inner wall of the pressure instrument fixing mechanism is fixedly connected to the outer wall of the extrusion mechanism, and the inner wall of the pressure instrument fixing mechanism is rotatably connected to the outer wall of the stabilization mechanism.

[0006] Preferably, the oil pipe mechanism comprises an oil pipe body, an oil pipe groove and a cable body, and an oil pipe groove is provided inside the oil pipe body, and one side of the oil pipe body is movably connected to an outer wall of the cable body.

[0007] Preferably, the cable protection mechanism consists of a first fixing frame, a first hoop groove, a protection steel plate, a protection groove and a clamping steel plate, and the first fixing frame is provided with a first hoop groove inside, one side of the first fixing frame is fixedly welded to one side of the protection steel plate, and one side of the protection steel plate is provided with a protection groove, and the inner wall of the first hoop groove is movably connected to the outer wall of the oil pipe body, and the inner wall of the protection groove is movably plugged into the outer wall of the clamping steel plate.

[0008] Preferably, the pressure instrument fixing mechanism includes a second fixing frame, a second hoop groove, a semi-embedded groove, a fixing groove, a through groove, a stabilizing groove and a pressure instrument, and a second hoop groove is provided inside the second fixing frame, the inner wall of the second hoop groove is movably connected to the outer wall of the oil pipe body, and a semi-embedded groove is provided on the outer wall of the second fixing frame, a stabilizing groove is provided on the inner wall of the semi-embedded groove, and the inner wall of the semi-embedded groove is movably connected to the outer wall of the pressure instrument.

[0009] Preferably, the extrusion mechanism consists of a threaded block, a threaded rod and an extruded rubber block, and the outer wall of the threaded block is fixedly connected to the inner wall of the fixed groove, a threaded groove is provided inside the threaded block, and the inner wall of the threaded groove is threadedly connected to the outer wall of the threaded rod, the bottom end of the threaded rod is fixedly connected to the top end of the extruded rubber block, and the outer wall of the threaded rod is movably connected to the inner wall of the through groove, and the top end of the pressure instrument is movably abutted against the bottom end of the extruded rubber block.

[0010] Preferably, the stabilizing mechanism includes a rotating plate, a clamping rubber sheet and an arc block, and rotating shafts are provided on both sides of the rotating plate, and the two sides of the rotating plate are rotatably connected to the inner wall of the stabilizing groove through the rotating shafts respectively, and the top side of the rotating plate is fixedly connected to one side of the clamping rubber sheet, and the bottom side of the rotating plate is fixedly connected to one side of the arc block, and the side of the arc block away from the rotating plate is set to an arc, and the outer walls of the arc block and the clamping rubber sheet are movably abutted against the outer wall of the pressure instrument.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, the first fixing frame is sleeved on the outer wall of the oil pipe body through the first hoop groove, and the cable body is placed inside the protective groove. The cable body is protected by the protective steel plate, which reduces a series of protective devices installed for protecting the cable body. It is not necessary to add other tools at the coupling to protect the cable body. The cable body can be protected by the raised protective steel plate integrally welded on the coupling, which is lightweight, convenient and simple.

[0013] In the utility model, the second fixing frame is sleeved on the outer wall of the oil pipe body through the second hoop groove, and the pressure instrument is placed in the semi-embedded groove so that half of the pressure instrument enters the semi-embedded groove. The threaded rod is rotated to drive the extrusion rubber block to extrude the top of the pressure instrument through the threaded block. When the pressure instrument is extruded, the outer wall of the pressure instrument and the arc block are extruded. When the arc block is extruded, it drives the rotating plate to rotate. The rotation of the rotating plate drives the clamping rubber sheet to extrude the outer wall of the pressure instrument, thereby stabilizing the pressure instrument. The utility model gets rid of the traditional embedded and external types, improves the defect of the previous external pressure gauge fixing device that occupies a large space, and also improves the diameter reduction problem of the built-in bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is an exploded view of the utility model;

[0017] Figure 4 It is an exploded view of the cable protection mechanism in the utility model;

[0018] Figure 5 It is a cross-sectional exploded view of the pressure instrument fixing mechanism in the utility model;

[0019] Figure 6 It is an exploded diagram of the extrusion mechanism in the utility model;

[0020] Figure 7 It is an exploded view of the stabilizing mechanism in the utility model.

[0021] In the figure: 1. oil pipe mechanism; 101. oil pipe body; 102. oil pipe groove; 103. cable body; 2. cable protection mechanism; 201. first fixing frame; 202. first hoop groove; 203. protection steel plate; 204. protection groove; 205. clamping steel plate; 3. pressure instrument fixing mechanism; 301. second fixing frame; 302. second hoop groove; 303. semi-embedded groove; 304. fixing groove; 305. through groove; 306. stabilizing groove; 307. pressure instrument; 4. extrusion mechanism; 401. threaded block; 402. threaded rod; 403. extrusion rubber block; 5. stabilizing mechanism; 501. rotating plate; 502. clamping rubber sheet; 503. arc block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 7 The utility model provides a technical solution: an oil and gas field cable oil pipe coupling includes an oil pipe mechanism 1, the outer surface of the oil pipe mechanism 1 is movably connected to the inner wall of a cable protection mechanism 2, and the outer wall of the oil pipe mechanism 1 is movably connected to the inner wall of a pressure instrument fixing mechanism 3.

[0024] The inner wall of the pressure instrument fixing mechanism 3 is fixedly connected to the outer wall of the extrusion mechanism 4 , and the inner wall of the pressure instrument fixing mechanism 3 is rotatably connected to the outer wall of the stabilization mechanism 5 .

[0025] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the oil pipe mechanism 1 includes an oil pipe body 101 , an oil pipe groove 102 and a cable body 103 , and the oil pipe body 101 is provided with an oil pipe groove 102 , and one side of the oil pipe body 101 is movably connected to the outer wall of the cable body 103 .

[0026] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the cable protection mechanism 2 is composed of a first fixing frame 201, a first hoop groove 202, a protection steel plate 203, a protection groove 204 and a clamping steel plate 205, and the first fixing frame 201 is provided with a first hoop groove 202 inside, one side of the first fixing frame 201 is fixedly welded to one side of the protection steel plate 203, and one side of the protection steel plate 203 is provided with a protection groove 204, and the inner wall of the first hoop groove 202 is movably connected to the outer wall of the oil pipe body 101, the first fixing frame 201 is sleeved on the outer wall of the oil pipe body 101 through the first hoop groove 202, the inner wall of the protection groove 204 is movably plugged with the outer wall of the clamping steel plate 205, the cable body 103 is placed inside the protection groove 204, and the cable body 103 is protected by the protection steel plate 203 and the clamping steel plate 205.

[0027] In this embodiment, Figure 1 , Figure 2, Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the pressure instrument fixing mechanism 3 includes a second fixing frame 301, a second hoop groove 302, a semi-embedded groove 303, a fixing groove 304, a through groove 305, a stabilizing groove 306 and a pressure instrument 307, and the second fixing frame 301 is provided with a second hoop groove 302, the inner wall of the second hoop groove 302 is movably connected to the outer wall of the oil pipe body 101, and the outer wall of the second fixing frame 301 is provided with a semi-embedded groove 303, the inner wall of the semi-embedded groove 303 is provided with a stabilizing groove 306, and the inner wall of the semi-embedded groove 303 is movably connected to the outer wall of the pressure instrument 307, and the pressure instrument 307 is placed in the semi-embedded groove 303, so that half of the pressure instrument 307 enters the semi-embedded groove 303.

[0028] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the extrusion mechanism 4 is composed of a threaded block 401, a threaded rod 402 and an extrusion rubber block 403, and the outer wall of the threaded block 401 is fixedly connected to the inner wall of the fixed groove 304, a threaded groove is provided inside the threaded block 401, and the inner wall of the threaded groove is threadedly connected to the outer wall of the threaded rod 402, the bottom end of the threaded rod 402 is fixedly connected to the top end of the extrusion rubber block 403, and the outer wall of the threaded rod 402 is movably connected to the inner wall of the through groove 305, the top end of the pressure gauge 307 is movably abutted against the bottom end of the extrusion rubber block 403, and the movable threaded rod 402 drives the extrusion rubber block 403 to extrude the top end of the pressure gauge 307 through the threaded block 401.

[0029] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the stabilizing mechanism 5 includes a rotating plate 501, a clamping rubber sheet 502 and an arc block 503, and rotating shafts are provided on both sides of the rotating plate 501. The two sides of the rotating plate 501 are rotatably connected to the inner wall of the stabilizing groove 306 through the rotating shafts, and the top side of the rotating plate 501 is fixedly connected to one side of the clamping rubber sheet 502, and the bottom side of the rotating plate 501 is fixedly connected to one side of the arc block 503. The side of the arc block 503 away from the rotating plate 501 is set to an arc shape, and the outer walls of the arc block 503 and the clamping rubber sheet 502 are movably abutted against the outer wall of the pressure instrument 307. The arc block 503 is squeezed to drive the rotating plate 501 to rotate, and the rotation of the rotating plate 501 drives the clamping rubber sheet 502 to squeeze the outer wall of the pressure instrument 307, thereby stabilizing the pressure instrument 307.

[0030] The use method and advantages of the utility model: When the oil and gas field cable oil pipe coupling is working, the working process is as follows:

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the first fixing frame 201 is sleeved on the outer wall of the oil pipe body 101 through the first hoop groove 202, the cable body 103 is placed inside the protection groove 204, and the cable body 103 is protected by the protection steel plate 203. The second fixing frame 301 is sleeved on the outer wall of the oil pipe body 101 through the second hoop groove 302, and the pressure meter 307 is placed in the semi-embedded groove 303, so that half of the pressure meter 307 enters the semi-embedded groove 303, and the threaded rod 402 is rotated to drive the extrusion rubber block 403 to extrude the top of the pressure meter 307 through the threaded block 401. When the pressure meter 307 is squeezed, the outer wall of the pressure meter 307 and the arc block 503 are squeezed. When the arc block 503 is squeezed, the rotating plate 501 is rotated, and the rotating plate 501 rotates to drive the clamping rubber sheet 502 to squeeze the outer wall of the pressure meter 307, thereby stabilizing the pressure meter 307.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An oil and gas field cable oil pipe coupling, comprising an oil pipe mechanism (1), characterized in that: The outer surface of the oil pipe mechanism (1) is movably connected to the inner wall of the cable protection mechanism (2), and the outer wall of the oil pipe mechanism (1) is movably connected to the inner wall of the pressure instrument fixing mechanism (3); The inner wall of the pressure instrument fixing mechanism (3) is fixedly connected to the outer wall of the extrusion mechanism (4), and the inner wall of the pressure instrument fixing mechanism (3) is rotatably connected to the outer wall of the stabilization mechanism (5).

2. The oil and gas field cable pipe coupling according to claim 1, characterized in that: The oil pipe mechanism (1) comprises an oil pipe body (101), an oil pipe groove (102) and a cable body (103), wherein the oil pipe body (101) is provided with an oil pipe groove (102) inside, and one side of the oil pipe body (101) is movably connected to the outer wall of the cable body (103).

3. The oil and gas field cable pipe coupling according to claim 2, characterized in that: The cable protection mechanism (2) is composed of a first fixing frame (201), a first hoop groove (202), a protection steel plate (203), a protection groove (204) and a clamping steel plate (205), wherein the first fixing frame (201) is provided with a first hoop groove (202), one side of the first fixing frame (201) is fixedly welded to one side of the protection steel plate (203), and one side of the protection steel plate (203) is provided with a protection groove (204), and the inner wall of the first hoop groove (202) is movably connected to the outer wall of the oil pipe body (101), and the inner wall of the protection groove (204) is movably plugged into the outer wall of the clamping steel plate (205).

4. The oil and gas field cable pipe coupling according to claim 3 is characterized by: The pressure instrument fixing mechanism (3) comprises a second fixing frame (301), a second hoop groove (302), a semi-embedded groove (303), a fixing groove (304), a through groove (305), a stabilizing groove (306) and a pressure instrument (307), wherein the second fixing frame (301) is provided with a second hoop groove (302) inside, the inner wall of the second hoop groove (302) is movably connected to the outer wall of the oil pipe body (101), the outer wall of the second fixing frame (301) is provided with a semi-embedded groove (303), the inner wall of the semi-embedded groove (303) is provided with a stabilizing groove (306), and the inner wall of the semi-embedded groove (303) is movably connected to the outer wall of the pressure instrument (307).

5. The oil and gas field cable pipe coupling according to claim 4 is characterized by: The extrusion mechanism (4) is composed of a threaded block (401), a threaded rod (402) and an extruded rubber block (403), and the outer wall of the threaded block (401) is fixedly connected to the inner wall of the fixed groove (304), a threaded groove is provided inside the threaded block (401), and the inner wall of the threaded groove is threadedly connected to the outer wall of the threaded rod (402), the bottom end of the threaded rod (402) is fixedly connected to the top end of the extruded rubber block (403), and the outer wall of the threaded rod (402) is movably connected to the inner wall of the through groove (305), and the top end of the pressure meter (307) is movably abutted against the bottom end of the extruded rubber block (403).

6. The oil and gas field cable pipe coupling according to claim 4, characterized in that: The stabilizing mechanism (5) comprises a rotating plate (501), a clamping rubber sheet (502) and an arc block (503), and rotating shafts are provided on both sides of the rotating plate (501). The two sides of the rotating plate (501) are rotatably connected to the inner wall of the stabilizing groove (306) through the rotating shafts, and the top side of the rotating plate (501) is fixedly connected to one side of the clamping rubber sheet (502), and the bottom side of the rotating plate (501) is fixedly connected to one side of the arc block (503). The side of the arc block (503) away from the rotating plate (501) is set to be arc-shaped, and the outer walls of the arc block (503) and the clamping rubber sheet (502) are both movably abutted against the outer wall of the pressure instrument (307).

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