Power slip with splash-proof buckling function

Abstract

The utility model belongs to the technical field of petroleum drilling, and relates to a power slip with a splash-proof buckling function, which comprises a slip casing, a clamping component arranged on the slip casing, a splash-proof component arranged on the clamping component, slip seats symmetrically arranged on two sides of the slip casing, and slip inserts arranged in the slip seats. A power driving assembly matched with the slip bowl is arranged on the slip shell. By means of the linked splash-proof assembly, splashing of well fluid is fundamentally restrained, a well mouth is kept clean, environmental pollution and equipment maintenance cost are reduced, and personnel safety is guaranteed; due to the horn mouth design of the conical guide shell, the oil pipes can be automatically, rapidly and accurately guided to be buckled, the working efficiency is remarkably improved, thread damage caused by inaccurate alignment is completely eradicated, and the service life of the oil pipes is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of oil drilling technology and relates to a power slip with anti-splash locking function. Background Technology

[0002] In oil drilling and well workover operations, power slips are key equipment used to automatically clamp and release tubing and other tubing strings at the wellhead. Their basic working principle involves using hydraulic, pneumatic, or electric power to drive the slip jaws radially, thereby clamping or releasing the tubing string.

[0003] The existing technology has the following main problems and defects:

[0004] 1. Well fluid splashing problem: When the power slips are used to clamp the tubing string at the wellhead for connection and disconnection operations, the well fluid (mud) remaining in the tubing threads and inside will be thrown out under the action of centrifugal force, causing environmental pollution in the wellhead area. This not only makes cleaning difficult, but also corrodes the equipment and poses a threat to the safety and health of the operators.

[0005] 2. Low connection efficiency and thread damage: When connecting new oil pipes (threading operation), operators need to manually guide the threads of the two oil pipes to align precisely. Existing power slips only provide support and do not have auxiliary guiding functions, relying entirely on the operator's experience. Incorrect alignment can easily lead to "misaligned threads" or "random threads," damaging expensive oil pipe threads, seriously affecting work efficiency, and even causing safety accidents.

[0006] 3. The level of automation needs to be improved: Traditional locking and splash prevention measures are mostly manual or simple auxiliary devices, which are not integrated with the power slips themselves and cannot meet the urgent needs of modern drilling platforms for efficient, clean and automated operations. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a power clamp with anti-splash locking function.

[0008] The power chuck with anti-splash locking function described in this utility model includes a chuck housing, a clamping assembly on the chuck housing, an anti-splash assembly on the clamping assembly, chuck seats symmetrically arranged on both sides of the chuck housing, chuck teeth provided in the chuck seats, and a power drive assembly adapted to the chuck seats on the chuck housing.

[0009] The power drive assembly is used to drive two symmetrically arranged slip seats to simultaneously snap into place at the center of the slip housing, thereby achieving clamping of the slip seats.

[0010] The splash-proof assembly includes a splash-proof housing connected to the clamping assembly, a collection cavity inside the splash-proof housing, and a collection outlet at the bottom of the splash-proof housing that communicates with the collection cavity.

[0011] The clamping assembly includes a support plate fixed to the top of the clamp housing. Two columns are symmetrically arranged on the support plate, and the same base plate is fixedly connected to the two columns. Two clamping hydraulic cylinders are symmetrically hinged to the base plate. The working ends of the two clamping hydraulic cylinders are each hinged to a clamping link that is rotatably connected to the base plate. The other end of the clamping link is hinged to its corresponding splash-proof housing.

[0012] The splash-proof housing has an arc-shaped baffle at the bottom of its inner side, forming a collection cavity between the arc-shaped baffle and the splash-proof housing.

[0013] The upper part of the inner side of the splash-proof shell is provided with a clamping body, and a connecting plate is hinged to the clamping rod. A buffer block is provided on the inner side of the connecting plate, which penetrates the splash-proof shell and is connected to the clamping body.

[0014] The power drive assembly includes rotating shafts that correspond one-to-one with the slip seats and are rotatably connected to the slip housing. Both rotating shafts have cranks at their rear ends, and the two cranks are hinged to the same drive connecting rod. A drive hydraulic cylinder is also hinged to the drive connecting rod and is hinged to the slip housing.

[0015] The splash-proof housing is provided with a guide housing on top.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model fundamentally curbs well fluid splashing through its interconnected anti-splash components, keeping the wellhead clean, reducing environmental pollution and equipment maintenance costs, and ensuring personnel safety. The conical guide housing with its flared opening design can automatically, quickly, and accurately guide the tubing to align, significantly improving operational efficiency, eliminating thread damage caused by misalignment, and extending the service life of the tubing. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of an embodiment of the present utility model.

[0019] Figure 2 This is a second structural schematic diagram of an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the splash-proof component in one embodiment of the present invention.

[0021] In the diagram: 1. Slip housing; 2. Slip seat; 3. Slip teeth; 4. Support plate; 5. Column; 6. Collection outlet; 7. Splash-proof housing; 8. Base plate; 9. Clamping hydraulic cylinder; 10. Guide housing; 11. Connecting plate; 12. Clamping connecting rod; 13. Drive connecting rod; 14. Crank; 15. Rotating shaft; 16. Drive hydraulic cylinder; 17. Buffer block; 18. Clamping body; 19. Arc-shaped baffle; 20. Collection chamber. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-3 As shown, the power collet with anti-splash fastening function of this utility model includes a collet housing 1, a clamping assembly on the collet housing 1, an anti-splash assembly on the clamping assembly, collet seats 2 symmetrically arranged on both sides of the collet housing 1, collet teeth 3 provided in the collet seats 2, and a power drive assembly adapted to the collet seats 2 on the collet housing 1.

[0024] The power drive assembly is used to drive two symmetrically arranged slip seats 2 to simultaneously fasten towards the center of the slip housing 1, thereby achieving the clamping of the slip seats 2.

[0025] The splash-proof assembly includes a splash-proof housing 7 connected to the clamping assembly. The splash-proof housing 7 has a collection chamber 20 inside, and a collection outlet 6 at the bottom of the splash-proof housing 7 that communicates with the collection chamber 20. When connecting a new oil pipe, the lower oil pipe is clamped by the slip seat 2. The new oil pipe is lowered, and its male connector is precisely aligned with the lower oil pipe coupling. Then, the clamping assembly performs a clamping buckle operation. When the oil pipe is rotated and connected, the mud is thrown into the collection chamber 20 inside the splash-proof housing 7, and then discharged through the collection outlet 6 and led to the ground recovery system through a hose.

[0026] The clamping assembly includes a support plate 4 fixed to the top of the slip housing 1. Two columns 5 are symmetrically arranged on the support plate 4. The same base plate 8 is fixedly connected to the two columns 5. Two clamping hydraulic cylinders 9 are symmetrically hinged to the base plate 8. The working ends of the two clamping hydraulic cylinders 9 are each hinged to a clamping connecting rod 12 that is rotatably connected to the base plate 8. The other end of the clamping connecting rod 12 is hinged to its corresponding splash-proof housing 7. The control system synchronously controls the two clamping hydraulic cylinders 9 to work synchronously to clamp the oil pipe and align the splash-proof assembly with the connection point.

[0027] The splash-proof housing 7 has an arc-shaped baffle 19 at the bottom of its inner side. The arc-shaped baffle 19 and the splash-proof housing 7 form a collection cavity 20. The mud thrown out during the rotation connection will directly enter the collection cavity 20 for collection.

[0028] The upper part of the inner side of the splash-proof housing 7 is provided with a clamping body 18, and the clamping connecting rod 12 is hinged to a connecting plate 11. The inner side of the connecting plate 11 is provided with a buffer block 17 that penetrates the splash-proof housing 7 and is connected to the clamping body 18. The buffer block 17 can play a buffering role when the clamping body 18 clamps the oil pipe, so as to avoid damage to the oil pipe connector.

[0029] The power drive assembly includes rotating shafts 15 that correspond one-to-one with the slip seat 2 and are rotatably connected to the slip housing 1. Both rotating shafts 15 have cranks 14 at their rear ends. The two cranks 14 are hinged to the same drive connecting rod 13. A drive hydraulic cylinder 16 is also hinged to the drive connecting rod 13. The drive hydraulic cylinder 16 is hinged to the slip housing 1. The initial position of the two cranks 14 enables the drive connecting rod 13 to achieve synchronous control of the two cranks 14.

[0030] The splash-proof housing 7 is equipped with a guide housing 10 at the top. When a new oil pipe is lowered from the derrick, the male threaded connector at its lower end will first contact the conical surface of the flared mouth of the guide housing 10. Under the action of gravity, the conical surface can automatically guide the male connector to the center for correction, so that it is precisely aligned with the oil pipe coupling held by the slips below, achieving a proper connection. This greatly reduces the requirements for operational skills and avoids thread damage.

[0031] This utility model fundamentally curbs well fluid splashing through its interconnected anti-splash components, keeping the wellhead clean, reducing environmental pollution and equipment maintenance costs, and ensuring personnel safety. The conical guide housing with its 10-flare design can automatically, quickly, and accurately guide the tubing to align, significantly improving operational efficiency, eliminating thread damage caused by misalignment, and extending the service life of the tubing.

[0032] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A power clamp with anti-splash locking function, characterized in that: Includes a slip housing (1), a clamping assembly on the slip housing (1), a splash-proof assembly on the clamping assembly, slip seats (2) symmetrically arranged on both sides of the slip housing (1), slip teeth (3) provided inside the slip seats (2), and a power drive assembly adapted to the slip seats (2) on the slip housing (1); The power drive assembly is used to drive two symmetrically arranged slip seats (2) to lock together synchronously towards the center of the slip housing (1), thereby achieving the clamping of the slip seats (2); The splash-proof assembly includes a splash-proof housing (7) connected to the clamping assembly, a collection cavity (20) is provided inside the splash-proof housing (7), and a collection outlet (6) connected to the collection cavity (20) is provided at the bottom of the splash-proof housing (7).

2. The power clamp with anti-splash locking function according to claim 1, characterized in that: The clamping assembly includes a support plate (4) fixed on the top of the clamp housing (1). Two columns (5) are symmetrically arranged on the support plate (4). The same base plate (8) is fixedly connected to the two columns (5). Two clamping hydraulic cylinders (9) are symmetrically hinged on the base plate (8). The working ends of the two clamping hydraulic cylinders (9) are all hinged to clamping connecting rods (12) that are rotatably connected to the base plate (8). The other end of the clamping connecting rods (12) is hinged to its corresponding splash-proof housing (7).

3. The power clamp with anti-splash locking function according to claim 2, characterized in that: The splash-proof housing (7) has an arc-shaped baffle (19) at the bottom of its inner side, and a collection cavity (20) is formed between the arc-shaped baffle (19) and the splash-proof housing (7).

4. The power clamp with anti-splash locking function according to claim 3, characterized in that: The upper part of the inner side of the splash-proof shell (7) is provided with a clamp (18), and the clamping connecting rod (12) is hinged to a connecting plate (11). The inner side of the connecting plate (11) is provided with a buffer block (17) that penetrates the splash-proof shell (7) and is connected to the clamp (18).

5. The power latch with anti-splash locking function according to any one of claims 1-4, characterized in that: The power drive assembly includes a rotating shaft (15) that corresponds one-to-one with the slip seat (2) and is rotatably connected to the slip housing (1). Both rotating shafts (15) have cranks (14) at their rear ends. The two cranks (14) are hinged to the same drive connecting rod (13). A drive hydraulic cylinder (16) is also hinged to the drive connecting rod (13). The drive hydraulic cylinder (16) is hinged to the slip housing (1).

6. The power clamp with anti-splash locking function according to claim 5, characterized in that: The splash-proof housing (7) is provided with a guide housing (10) on top.

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