Testing, taking and delivering tool for integrated fracturing wellhead

Abstract

The utility model relates to the technical field of fracturing operation, in particular to an integrated test taking and feeding tool for a fracturing wellhead, which comprises a pressure test plug end, a grip and a wear-resistant sleeve taking and feeding end, one end of the grip is fixedly connected to the wear-resistant sleeve taking and feeding end, the other end of the grip is provided with external threads, one side of the pressure test plug end is provided with internal threads, and the other side of the pressure test plug end is provided with external threads. The other side of the pressure test plug end is provided with a first cavity, the external thread and the internal thread are in threaded connection, a core body is fixed to the tail end of the external thread, a silica gel sealing gasket is fixed to the end face of the core body, a clamping plate is arranged on the end face of the stand column, an abutting cavity is formed in the surface of the vertical plate, and a through groove is formed in the abutting cavity. A fixing piece is fixed to the end face of the inserting rod, the surface of the inserting rod is sleeved with a spring, and one end of the spring is fixedly connected to the fixing piece. The pressure test plug has the beneficial effects that the pressure test plug for testing and a tool for taking and conveying the wear-resistant sleeve are integrated, so that the convenience in specific use is improved, and the operation complexity and the potential safety hazard are reduced.

Description

Technical Field

[0001] The utility model relates to the field of fracturing operations, in particular to an integrated testing and fetching tool for a fracturing wellhead. Background Art

[0002] Fracturing technology is a key means to increase the production of low-permeability oil and gas reservoirs. It injects fluid (usually containing water, sand and chemical additives) into the formation under high pressure to form cracks to increase the flow channels of oil and gas. This process involves complex ground equipment and downhole tools. The wellhead device is the key interface between the ground equipment and the downhole, and its performance is directly related to the success of the fracturing operation.

[0003] In traditional fracturing operations, the wellhead equipment often needs to install and replace different tools in stages, including but not limited to packers, pressure testing tools, sampling tools, etc.

[0004] However, the original test pressure plug is a separate tool, and the tool for removing and delivering the wear-resistant sleeve is also a separate tool, which is not only time-consuming to use, but also increases the complexity of the operation and safety hazards. Therefore, the utility model proposes an integrated fracturing wellhead test and delivery tool to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an integrated testing and delivering tool for a fracturing wellhead, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated test and delivery tool for a fracturing wellhead, the integrated test and delivery tool for a fracturing wellhead comprising: a test pressure plug end, a grip and a wear-resistant sleeve delivery end, one end of the grip is fixedly connected to the wear-resistant sleeve delivery end, the other end of the grip is provided with an external thread, one side of the test pressure plug end is provided with an internal thread, the other side of the test pressure plug end is provided with a first cavity, the external thread and the internal thread are threaded, the end of the external thread is fixed with a core body, and the end surface of the core body is fixed with a silicone sealing pad;

[0007] A column, a clamping plate is arranged on the end surface of the column, a stopper cavity is provided on the surface of the column, and a through groove is provided in the stopper cavity;

[0008] The plug rod is plugged into the delivery end of the wear-resistant sleeve, a fixing device is fixed on the end face of the plug rod, a spring is sleeved on the surface of the plug rod, one end of the spring is fixedly connected to the fixing device, and the other end of the spring is fixedly connected to the delivery end of the wear-resistant sleeve.

[0009] Preferably, a rubber ring is fixed on the surface of the handle, and a plurality of rubber rings are provided, and the plurality of rubber rings are linearly distributed at equal distances on the surface of the handle.

[0010] Preferably, the core body and the silicone sealing pad are arranged in the first cavity, and the outer wall of the core body and the inner wall of the first cavity are slidably connected.

[0011] Preferably, a side plate is fixed on the surface of the end of the pressure test plug, a connecting rod is fixed on the side plate, and one end of the column is rotatably connected to the connecting rod.

[0012] Preferably, the clamping plate is a trapezoidal plate and the inner wall surface of the clamping plate is arc-shaped and concave, and two groups of clamping plates are provided, and the two groups of clamping plates are symmetrically distributed about the central axis of the pressure test plug end.

[0013] Preferably, stop blocks are fixed on both sides of the pressure test plug end, an inner cavity is provided on the surface of the stop block, the stop block can be embedded in the stop cavity, threads are provided in the inner cavity and the through groove, and the inner cavity and the through groove are connected by a pentagonal bolt.

[0014] Preferably, a second cavity is provided at the delivery end of the wear-resistant sleeve, and the second cavity is used for inserting the wear-resistant sleeve. The fixture is disc-shaped, and a handle is fixed on the surface of the fixture, and the inner wall of the handle is provided with anti-slip patterns.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides an integrated testing and delivering tool for a fracturing wellhead, which integrates a test pressure plug for testing and a tool for delivering a wear-resistant sleeve. The normal operation of the test pressure plug can be achieved through the provided test pressure plug end to seal the port of the pipeline to be tested, and the wear-resistant sleeve can be effectively delivered through the provided wear-resistant sleeve delivering end, thereby improving convenience during specific use, reducing operation complexity and safety hazards, thus avoiding the problem that the original test pressure plug for testing is a separate tool and the tool for delivering the wear-resistant sleeve is also a separate tool, which not only takes a long time when used, but also increases the operation complexity and safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a detailed diagram of the structure of the utility model;

[0019] Figure 3 This is a cross-sectional view of the test pressure plug end structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the card board of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the wear-resistant sleeve delivery end of the utility model.

[0022] In the figure: 1. Connecting rod; 2. Test plug end; 3. Clamp plate; 4. Column; 5. Pentagonal bolt; 6. Side plate; 7. Handle; 8. Anti-slip pattern; 9. Fixing; 10. Spring; 11. Wear-resistant sleeve delivery end; 12. Insert rod; 13. Rubber ring; 14. Grip; 15. Silicone sealing pad; 16. Core; 17. External thread;

[0023] 18. Stop block; 19. Inner cavity; 20. First cavity; 21. Internal thread; 22. Stop cavity; 23. Through groove; 24. Second cavity. DETAILED DESCRIPTION

[0024] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit 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.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 5 The utility model provides a technical solution: an integrated test and delivery tool for a fracturing wellhead, the integrated test and delivery tool for a fracturing wellhead comprises: a test pressure plug end 2, a grip 14 and a wear-resistant sleeve delivery end 11, one end of the grip 14 is fixedly connected to the wear-resistant sleeve delivery end 11, the other end of the grip 14 is provided with an external thread 17, one side of the test pressure plug end 2 is provided with an internal thread 21, the other side of the test pressure plug end 2 is provided with a first cavity 20, the external thread 17 and the internal thread 21 are threaded, the end of the external thread 17 is fixed with a core body 16, and the end surface of the core body 16 is fixed with a silicone sealing pad 15;

[0027] A column 4, a card plate 3 is arranged on the end face of the column 4, a stop cavity 22 is provided on the surface of the column, a through groove 23 is provided in the stop cavity 22, a core 16 and a silicone sealing pad 15 are arranged in the first cavity 20, the outer wall of the core 16 and the inner wall of the first cavity 20 are slidably connected, a side plate 6 is fixed on the surface of the pressure test plug end 2, a connecting rod 1 is fixed on the side plate 6, one end of the column 4 is rotatably connected to the connecting rod 1, the card plate 3 is a trapezoidal plate and the inner side wall of the card plate 3 is arc-shaped and concave, two groups of card plates 3 are provided, and the two groups of card plates 3 are symmetrically distributed about the central axis of the pressure test plug end 2;

[0028] Stop blocks 18 are fixed on both sides of the test plug end 2. An inner cavity 19 is provided on the surface of the stop block 18. The stop block 18 can be embedded in the stop cavity 22. Threads are provided in the inner cavity 19 and the through groove 23. The inner cavity 19 and the through groove 23 are connected by a pentagonal bolt 5.

[0029] When in use, first move the side plate 6 to move the card plate 3 below the side plate 6 away from the first cavity 20, then insert the port of the pipeline to be tested into the first cavity 20, then move the side plate 6 to clamp the annular boss of the pipeline to be tested in the recessed part of the two card plates 3, and use the clamping of the two card plates 3 to support the bottom surface of the boss of the pipeline. At this time, the stop block 18 is embedded in the stop cavity 22, and then, the inner cavity 19 and the through groove 23 are connected by the pentagonal bolt 5 to fix the card plate 3, and then, by holding the handle 14 and rotating it, the core 16 is moved under the action of the external thread 17 and the internal thread 21, so that the silicone sealing pad 15 is abutted against the port of the pipeline to achieve the blocking of the pipeline port, and then the pipeline is ventilated or water is injected to realize the pressure test.

[0030] Embodiment 2

[0031] On the basis of the first embodiment, an insertion rod 12 is provided, the insertion rod 12 is plugged into the wear-resistant sleeve delivery end 11, the end surface of the insertion rod 12 is fixed with a fixing 9, the surface of the insertion rod 12 is sleeved with a spring 10, one end of the spring 10 is fixedly connected to the fixing 9, and the other end of the spring 10 is fixedly connected to the wear-resistant sleeve delivery end 11;

[0032] A second cavity 24 is provided at the wear-resistant sleeve delivery end 11, and the second cavity 24 is used for inserting the wear-resistant sleeve. The fixing device 9 is in a disc shape, and a handle 7 is fixed on the surface of the fixing device 9;

[0033] When in use, first manually turn the handle 7 to move the insertion rod 12 and pull the insertion rod 12 out of the second cavity 24. At this time, the spring 10 is compressed and the spring 10 stores elastic potential energy. Then, by holding the handle 14, the wear-resistant sleeve delivery end 11 is moved to embed the wear-resistant sleeve into the second cavity 24, and the position of the wear-resistant sleeve is adjusted to match the grooves on both sides of the wear-resistant sleeve with the insertion rod 12. Then, release the handle 7, and under the rebound action of the spring 10, the insertion rod 12 is automatically inserted into the groove, thereby achieving fixed limit of the wear-resistant sleeve, which is convenient for the removal and delivery of the wear-resistant sleeve.

[0034] Embodiment 3

[0035] On the basis of the second embodiment, a rubber ring 13 is fixed on the surface of the grip 14, and a plurality of rubber rings 13 are provided. The plurality of rubber rings 13 are linearly distributed equidistantly on the surface of the grip 14, and an anti-slip pattern 8 is provided on the inner wall of the handle 7;

[0036] When in use, the rubber ring 13 and the anti-skid pattern 8 can both increase friction and improve the comfort of manual holding, and improve stability during operation.

[0037] In actual use, the normal operation of the pressure test plug can be achieved through the set pressure test plug end 2 to seal the port of the pipeline to be tested, and the wear-resistant sleeve can be effectively picked up and delivered through the set wear-resistant sleeve taking and delivering end 11, thereby improving the convenience in specific use and reducing the complexity of operation and safety hazards. This avoids the problem that the original pressure test plug used for testing is a separate tool, and the tool for taking and delivering the wear-resistant sleeve is also a separate tool, which not only takes a long time when used, but also increases the complexity of operation and safety hazards.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated fracturing wellhead testing and delivery tool, characterized in that: The integrated fracturing wellhead test and delivery tool comprises: a test pressure plug end (2), a handle (14) and a wear-resistant sleeve delivery end (11); one end of the handle (14) is fixedly connected to the wear-resistant sleeve delivery end (11); the other end of the handle (14) is provided with an external thread (17); one side of the test pressure plug end (2) is provided with an internal thread (21); the other side of the test pressure plug end (2) is provided with a first cavity (20); the external thread (17) and the internal thread (21) are threadedly connected; a core body (16) is fixed to the end of the external thread (17); and a silicone sealing pad (15) is fixed to the end surface of the core body (16); A column (4), the end surface of the column (4) is provided with a clamping plate (3), a surface of the column is provided with a stop cavity (22), and a through groove (23) is provided in the stop cavity (22); An insert rod (12) is inserted into the wear-resistant sleeve delivery end (11), a fixing device (9) is fixed to the end surface of the insert rod (12), a spring (10) is sleeved on the surface of the insert rod (12), one end of the spring (10) is fixedly connected to the fixing device (9), and the other end of the spring (10) is fixedly connected to the wear-resistant sleeve delivery end (11).

2. The integrated fracturing wellhead testing and delivery tool according to claim 1, characterized in that: A rubber ring (13) is fixed on the surface of the handle (14), and a plurality of rubber rings (13) are provided. The plurality of rubber rings (13) are linearly distributed at equal distances on the surface of the handle (14).

3. The integrated fracturing wellhead testing and delivery tool according to claim 1, characterized in that: The core body (16) and the silicone sealing pad (15) are arranged in the first cavity (20), and the outer wall of the core body (16) and the inner wall of the first cavity (20) are slidably connected.

4. The integrated fracturing wellhead testing and delivery tool according to claim 1, characterized in that: A side plate (6) is fixed on the surface of the pressure test plug end (2), a connecting rod (1) is fixed on the side plate (6), and one end of the column (4) is rotatably connected to the connecting rod (1).

5. The integrated fracturing wellhead testing and delivery tool according to claim 1, characterized in that: The clamping plate (3) is a trapezoidal plate and the inner wall surface of the clamping plate (3) is arc-shaped and concave. Two groups of clamping plates (3) are provided, and the two groups of clamping plates (3) are symmetrically distributed about the central axis of the pressure test plug end (2).

6. The integrated fracturing wellhead testing and delivery tool according to claim 1, characterized in that: Stop blocks (18) are fixed on both sides of the pressure test plug end (2). An inner cavity (19) is provided on the surface of the stop block (18). The stop block (18) can be embedded in the stop cavity (22). Threads are provided in the inner cavity (19) and the through groove (23). The inner cavity (19) and the through groove (23) are connected by a pentagonal bolt (5).

7. The integrated fracturing wellhead testing and delivery tool according to claim 1, characterized in that: A second cavity (24) is provided at the wear-resistant sleeve delivery end (11), and the second cavity (24) is used for inserting the wear-resistant sleeve. The fixing piece (9) is in the shape of a disk, and a handle (7) is fixed on the surface of the fixing piece (9), and an anti-slip pattern (8) is provided on the inner wall of the handle (7).

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