Wellhead simulation test tool for elevator, slip and lifting ring
By designing simulated wellhead test tooling for lifting cards, tiles and hoisting rings, the problems of single structure and insufficient functions of the existing equipment are solved, high simulation and flexible adjustability are achieved, safety and economy are improved, and testing needs are suitable for different working conditions.
Patent Information
- Application Number
- CN202411965565.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-03-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing petroleum drilling and completion operation simulation equipment has a single structure, insufficient functions and poor adaptability, which is difficult to meet the diverse operating needs and cannot effectively reproduce the actual operating conditions of the wellhead.
A simulated wellhead test tooling for lifting cards, tiles and hoisting rings is designed, including frames, mouse hole simulation ends, wellhead simulation ends, horizontal frames, simulated pipe columns, support members and pushing mechanisms. These components are used to achieve support and tilt adjustment of the simulated pipe columns, and simulated the situation of the lifting cards and simulated pipe columns under different working conditions.
It achieves high simulation, can reproduce wellhead operation conditions, has flexible adjustability, adapts to test needs under different operating conditions, improves safety and economy, avoids potential risks of actual operations, and can promptly detect problems.
Smart Images
Figure CN119666426A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a test tool for simulating a wellhead for elevators, slips and rings, and belongs to the field of oil drilling and completion operations. Background Art
[0002] Oil drilling and completion operations are two important stages in oil exploration and development, involving the entire process of oil and gas well construction, commissioning and production.
[0003] Oil drilling operations refer to drilling in the target area of underground oil and gas reservoirs through drilling technology, creating a drilling wellbore, and reaching the oil and gas layer through the wellbore to prepare for subsequent production operations. The purpose of drilling operations is to provide a channel for obtaining oil and gas resources and ensure the stability and safety of the wellbore.
[0004] Completion operations refer to a series of technical operations to form a wellhead structure that can safely and effectively produce oil or gas after drilling is completed in order to enter the oil and gas production stage. The purpose of completion operations is to ensure the safety of the wellhead, so that oil and gas can smoothly enter the wellbore from underground and be transported to surface facilities through pipelines.
[0005] In oil drilling and completion operations, the reliability and adaptability of wellhead equipment (elevators, slips, rings) and related operations are crucial. However, the actual operating environment is complex and dangerous, and direct on-site testing may result in a waste of resources or safety hazards.
[0006] The current simulation equipment in this industry has problems such as single structure, insufficient functions and poor adaptability, making it difficult to meet diverse operational needs.
[0007] Therefore, a simulated wellhead test tool for elevators, slips and rings is needed to reproduce the actual operating conditions of the wellhead, so as to carry out performance testing, operation drills and process optimization of the equipment. Summary of the invention
[0008] The technical problem to be solved by the present invention is: in order to overcome the shortcomings of the prior art, a test tool for simulating wellheads for hanging cards, slips and rings is provided to reproduce the actual operating conditions of the wellhead so as to carry out performance testing, operation drills and process optimization of the equipment.
[0009] The technical solution adopted by the present invention to solve the above-mentioned problem is: a tooling for simulating wellhead test of elevators, slips and lifting rings, comprising a frame, on which a rathole simulation end and a wellhead simulation end are arranged; The frame is detachably and fixedly connected with a horizontal frame, the horizontal frame is used to fix the simulated pipe string, the frame is provided with a support member and a pushing mechanism, the support member is used to support one end of the simulated pipe string, and the pushing mechanism is used to adjust the inclination angle of the simulated pipe string.
[0010] Preferably, the support member comprises a support sleeve, the support sleeve is arranged horizontally, the support sleeve is fixedly connected to the frame, one end of the support sleeve is sealed by a baffle, and the baffle is fixedly connected to the support sleeve.
[0011] Preferably, the pushing mechanism includes a pushing rod, which is vertically arranged. A pushing plate is arranged at the top of the pushing rod. The front and rear sides of the pushing plate extend upward to form a limiting part. A first supporting wheel is arranged between the two limiting parts, and the first supporting wheel is rotatably connected to the two limiting parts. The pushing rod is connected to the lifting system, and the lifting system drives the pushing rod to rise and fall.
[0012] Preferably, conveying assemblies are provided on both sides of the push plate, the two conveying assemblies are symmetrically arranged about the push plate, and the two conveying assemblies are detachably fixedly connected to the push rod; The conveying assembly includes a support plate and two conveying units, the front and rear sides of the support plate both extend upward to form a connecting portion, a second support wheel is arranged between the two connecting portions, the second support wheel is rotatably connected to the two connecting portions, the two conveying units are connected to the two connecting portions in a one-to-one correspondence, the two conveying units are symmetrically arranged front and back, and the second support wheel is located below the conveying unit.
[0013] Preferably, the conveying unit comprises a connecting frame, a conveying wheel is mounted on the connecting frame, the conveying wheel is connected to a driving source, the connecting frame is located between two connecting parts, and the connecting frame is elastically slidably connected to the connecting parts along the front-rear direction.
[0014] Preferably, in the same conveying assembly, the distance between the two connecting frames is equal to the distance between the two conveying wheels, and the distance between the two connecting frames is smaller than the distance between the two limiting portions.
[0015] Preferably, a plurality of movable rods are provided on the connecting frame, and the plurality of movable rods are distributed up and down. The movable rods pass through the connecting part, one end of the movable rod is fixed on the connecting frame, and the other end of the movable rod is connected to the connecting part through a spring.
[0016] Preferably, in the same conveying assembly, the tops of the two connecting frames on the sides close to each other are both provided with chamfers, and the two chamfers form an inverted figure eight shape.
[0017] Preferably, a lifting ring is provided on the movable sleeve of the push rod, and the lifting ring is fixedly connected to the two support plates. Two sockets are provided on the push rod, and the two sockets are distributed along the length direction of the push rod. The lifting ring is locked with the push rod by a pin, and the pin is inserted into one of the sockets.
[0018] A simulated wellhead test method, including a rathole simulation method, a catwalk simulation method, a wellhead simulation method and an elevator impact test method; The rathole simulation method comprises the following steps: removing the horizontal frame, passing the simulated pipe string vertically through the rathole simulation end, and equipping the simulated pipe string with an elevator, wherein the slip is located in the elevator, and the simulated pipe string is lifted and installed in the rathole simulation end by lifting the elevator; The catwalk simulation method comprises the following steps: placing a simulated pipe column horizontally, and supporting one end of the simulated pipe column by a support member; then, tilting the simulated pipe column by a pushing mechanism; connecting a lifting ring to an elevator; and lifting the elevator by a lifting device; wherein, the tilt angle of the simulated pipe column is adjusted by the pushing mechanism, thereby simulating the conditions of the elevator and the simulated pipe column under different slope conditions; The wellhead simulation method comprises the following steps: lifting the lifting ring by a lifter, so that the lifting ring lifts the elevator, thereby making the elevator cooperate with the catwalk simulation end; The catwalk simulation end is an adjustable slip structure, which is used to restore the actual wellhead environment and facilitate the actual on-site verification of process test elevators, slips and rings; The steps of the elevator impact test method are as follows: a simulated pipe column placed vertically is fixed by a horizontal frame, and the simulated pipe column vertically passes through a simulated end of a rat hole, the elevator is in an open state, and the lifting ring drives the elevator to move synchronously and hit the simulated pipe column through the movement of the lifter, and the elevator automatically closes.
[0019] Compared with the prior art, the advantages of the present invention are: 1. High simulation: through the complete simulation of rat holes, catwalks and wellheads, the wellhead operation conditions can be reproduced; 2. Flexible adjustability: The catwalk inclination angle is adjustable, and the size of the simulated pipe string can be adjusted by replacing the slips to meet the testing requirements under different working conditions; 3. Safety: Conduct simulation tests in an experimental environment to effectively avoid potential risks in actual operations; 4. Economical: by testing the working conditions on site, there is no need to install the equipment on site, and problems can be discovered in a timely manner, which has a certain timeliness. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure when the rat hole simulation method is adopted; Figure 2 It is a schematic diagram of the connection structure between the elevator, slips and simulated pipe string when the rathole simulation method is adopted; Figure 3 It is a structural schematic diagram when the catwalk simulation method is adopted; Figure 4 It is a structural schematic diagram when the wellhead simulation method is adopted; Figure 5It is a structural schematic diagram when the elevator impact test method is adopted; Figure 6 It is a structural diagram of the propulsion mechanism; Figure 7 The main view of the driving mechanism; Figure 8 It is the left view of the driving mechanism; Fig. 9 It is a schematic diagram of the connection structure between the push rod and the push plate; Fig.10 It is a schematic diagram of the connection structure between the lifting ring and the two conveying components; Fig.11 It is a structural schematic diagram of the conveying component; Fig.12 A schematic diagram of the structure of the support member.
[0021] in: Frame 1, rat hole simulation end 2, wellhead simulation end 3, horizontal frame 4, simulation pipe string 5, support casing 6, baffle 7, pushing mechanism 8, elevator 9, slip 10, lifter 11, lifting ring 12; Push rod 81, push plate 82, limit portion 83, first support wheel 84, hydraulic cylinder 85, conveying assembly 86, lifting ring 87, plug hole 88, latch 89; Support plate 861, conveying unit 862, connecting portion 863, second supporting wheel 864; Connecting frame 8621, conveying wheel 8622, moving rod 8623, spring 8624, chamfer 8625. DETAILED DESCRIPTION
[0022] like Figure 1-12 As shown, a tooling for simulating wellhead test of elevators, slips and lifting rings in this embodiment comprises a frame 1, on which a rathole simulation end 2 and a wellhead simulation end 3 are arranged, and the rathole simulation end 2 and the wellhead simulation end 3 are arranged side by side; The frame 1 is detachably and fixedly connected with a horizontal frame 4, the horizontal frame 4 is used to fix the simulated pipe string 5, the frame 1 is provided with a support member and a pushing mechanism 8, the support member is used to support one end of the simulated pipe string 5, and the pushing mechanism 8 is used to adjust the inclination angle of the simulated pipe string 5; The support member includes a support sleeve 6, the support sleeve 6 is arranged horizontally, the support sleeve 6 is detachably fixedly connected to the frame 1, one end of the support sleeve 6 is sealed by a baffle 7, and the baffle 7 is detachably fixedly connected to the support sleeve 6; The pushing mechanism 8 includes a pushing rod 81, which is arranged vertically. A pushing plate 82 is arranged at the top of the pushing rod 81. Both the front and rear sides of the pushing plate 82 extend upward to form a limiting portion 83. A first supporting wheel 84 is arranged between the two limiting portions 83. The first supporting wheel 84 is rotatably connected to the two limiting portions 83. The pushing rod 81 is connected to a lifting system, and the lifting system drives the pushing rod 81 to rise and fall. The lifting system is a hydraulic cylinder 85. Conveying assemblies 86 are disposed on both sides of the push plate 82. The two conveying assemblies 86 are symmetrically arranged about the push plate 82. The two conveying assemblies 86 are detachably fixedly connected to the push rod 81. The conveying assembly 86 includes a support plate 861 and two conveying units 862. The front and rear sides of the support plate 861 both extend upward to form a connecting portion 863. A second supporting wheel 864 is provided between the two connecting portions 863. The second supporting wheel 864 is rotatably connected to the two connecting portions 863. The two conveying units 862 are connected to the two connecting portions 863 in a one-to-one correspondence. The two conveying units 862 are symmetrically arranged front and back. The second supporting wheel 864 is located below the conveying unit 862. The conveying unit 862 includes a connecting frame 8621, on which a conveying wheel 8622 is installed. The conveying wheel 8622 is connected to a driving source, which is a motor. The connecting frame 8621 is located between two connecting parts 863, and the connecting frame 8621 is elastically slidably connected to the connecting part 863 along the front-back direction. In the same conveying assembly 86, the distance between the two connecting frames 8621 is equal to the distance between the two conveying wheels 8622, and the distance between the two connecting frames 8621 is smaller than the distance between the two limiting portions 83; The connecting frame 8621 is provided with a plurality of moving rods 8623, which are distributed up and down. The moving rods 8623 pass through the connecting portion 863, one end of the moving rod 8623 is fixedly arranged on the connecting frame 8621, and the other end of the moving rod 8623 is connected to the connecting portion 863 via a spring 8624; In the same conveying assembly 86, the tops of the two connecting frames 8621 close to each other are both provided with chamfers 8625, and the two chamfers 8625 form an inverted figure eight shape; The push rod 81 is provided with a lifting ring 87, which is fixedly connected to the two support plates 861. The push rod 81 is provided with two insertion holes 88, which are distributed along the length direction of the push rod 81. The lifting ring 87 is locked with the push rod 81 by a latch 89, and the latch 89 is inserted into one of the insertion holes 88. A simulated wellhead test method, including a rathole simulation method, a catwalk simulation method, a wellhead simulation method and an elevator 9 impact test method; The rat hole simulation method comprises the following steps: removing the horizontal frame 4, passing the simulated pipe string 5 vertically through the rat hole simulation end 2, and equipping the simulated pipe string 5 with an elevator 9, wherein the slip 10 is located in the elevator 9, and lifting and installing the simulated pipe string 5 in the rat hole simulation end 2 is achieved by lifting the elevator 9; At the same time, by adjusting the specifications of slips 10 to meet the operation requirements of different simulated pipe column 5 diameters, the scope of application is expanded; The catwalk simulation method comprises the following steps: placing the simulated pipe string 5 horizontally, and supporting one end of the simulated pipe string 5 by a support member, and then tilting the simulated pipe string 5 by a pushing mechanism 8. The simulated pipe string 5 may be equipped with a straightening ring to prevent the simulated pipe string 5 from deflecting and improve the stability of the simulated pipe string 5. The lifting ring 12 is connected to the lifting card 9, and the lifting ring 12 is used to lift the lifting card 9 by a lifting device 11. The tilt angle of the simulated pipe string 5 is adjusted by the pushing mechanism 8, so as to simulate the situation of the lifting card 9 and the simulated pipe string 5 under different slope conditions; The wellhead simulation method comprises the following steps: lifting the lifting ring 12 by the lifting device 11, so that the lifting ring 12 lifts the lifting card 9, so that the lifting card 9 cooperates with the catwalk simulation end; The catwalk simulation end is an adjustable slip 10 structure, which is used to restore the actual wellhead environment, facilitating the actual on-site verification of the process test elevator 9, slip 10 and ring 12; Specifically: the initial state of the plug 89 is that it is inserted into the upper plug hole 88, simulating that the pipe column 5 is placed horizontally and moves downward from top to bottom; First, the simulated pipe column 5 is inserted between two connecting frames 8621 in the same conveying assembly 86, and the simulated pipe column 5 pushes the two connecting frames 8621 to move away from each other. The movement of the connecting frames 8621 drives the moving rod 8623 to move synchronously, and causes the spring 8624 to deform. As the simulated pipe column 5 continues to move downward, the simulated pipe column 5 is inserted between the two stopper portions 83. In fact, the distance between the two stopper portions 83 is equal to the diameter of the simulated pipe column 5, so that the two stopper portions 83 can position the simulated pipe column 5 in the front-rear direction. When the simulated pipe string 5 abuts against the top of the first support wheel 84, the simulated pipe string 5 stops moving downward, and according to calculation, the simulated pipe string 5 also abuts against the top of the second support wheel 864 at the same time, and the simulated pipe string 5 is supported by the first support wheel 84 and the two second support wheels 864, and the two conveying wheels 8622 in the same conveying assembly 86 clamp the simulated pipe string 5; Next, the motor is started to rotate the conveying wheel 8622, and the two conveying wheels 8622 in the same conveying assembly 86 turn in opposite directions. During the rotation of the conveying wheel 8622, the friction force generates a horizontal thrust on the simulated pipe column 5, and the thrusts generated by each conveying wheel 8622 on the simulated pipe column 5 are in the same direction. Under the force of the thrust, one end of the simulated pipe column 5 is inserted into the supporting sleeve 6 and abuts against the baffle 7. At this time, the conveying wheel 8622 stops rotating. Here, when the conveying wheel 8622 drives the simulated pipe column 5 to move, the conveying wheel 8622 is pushed toward the simulated pipe column 5 by the force of the spring 8624, thereby increasing the friction between the conveying wheel 8622 and the simulated pipe column 5, that is, improving the reliability of the conveying wheel 8622 driving the simulated pipe column 5 to move; Next, pull out the latch 89 to move the lifting ring 87 up and down on the push rod 81, that is, move the conveying assembly 86 to the bottom of the simulated pipe column 5. When the lifting ring 87 moves to the insertion hole 88 below, the latch 89 is inserted into the insertion hole 88 to achieve the up and down positioning between the lifting ring 87 and the push rod 81. Afterwards, the hydraulic cylinder 85 drives the push rod 81 to rise, so that the first support wheel 84 pushes the simulated pipe string 5 to rise, and one end of the simulated pipe string 5 is always located in the support sleeve 6, so that the simulated pipe string 5 is tilted, and the tilt angle of the simulated pipe string 5 is adjusted by controlling the rising distance of the push rod 81; The steps of the impact test method of the elevator 9 are as follows: a simulated pipe column 5 placed vertically is fixed by a horizontal frame 4, and the simulated pipe column 5 vertically passes through the simulated end 2 of the rat hole, the elevator 9 is in an open state, and the lifting ring 12 drives the elevator 9 to move synchronously and hit the simulated pipe column 5 through the movement of the lifter 11, and the elevator 9 is automatically closed; During the simulation test using the rat hole simulation method, the catwalk simulation method and the wellhead simulation method, the horizontal frame 4 can be removed; In summary, the simulated wellhead test tooling for elevators, slips and rings has the following advantages: 1. High simulation: through the complete simulation of rat holes, catwalks and wellheads, the wellhead operation conditions can be reproduced; 2. Flexible adjustability: The catwalk inclination angle is adjustable, and the size of the simulated pipe column 5 can be adjusted by replacing the slips 10 to meet the testing requirements under different working conditions; 3. Safety: Conduct simulation tests in an experimental environment to effectively avoid potential risks in actual operations; 4. Economical: by testing the working conditions on site, there is no need to install the equipment on site, and problems can be discovered in a timely manner, which has a certain timeliness.
[0023] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims
1. A test fixture for simulating wellheads of elevators, slips and rings, comprising a frame (1), characterized in that: The frame (1) is provided with a rathole simulation end (2) and a wellhead simulation end (3); The frame (1) is detachably and fixedly connected to a horizontal frame (4), the horizontal frame (4) being used to fix the simulated pipe column (5), the frame (1) being provided with a support member and a pushing mechanism (8), the support member being used to support one end of the simulated pipe column (5), and the pushing mechanism (8) being used to adjust the inclination angle of the simulated pipe column (5).
2. The tooling for simulating wellhead testing of elevators, slips and rings according to claim 1, characterized in that: The support member comprises a support sleeve (6), the support sleeve (6) is arranged horizontally, the support sleeve (6) is fixedly connected to the frame (1), one end of the support sleeve (6) is sealed by a baffle (7), and the baffle (7) is fixedly connected to the support sleeve (6).
3. The tooling for simulating wellhead testing of elevators, slips and rings according to claim 1, characterized in that: The pushing mechanism (8) comprises a pushing rod (81), the pushing rod is arranged vertically, a pushing plate (82) is arranged at the top end of the pushing rod (81), the front and rear sides of the pushing plate (82) both extend upward to form a limiting portion (83), a first supporting wheel (84) is arranged between the two limiting portions (83), the first supporting wheel (84) is rotatably connected to the two limiting portions (83), and the pushing rod (81) is connected to a lifting system, and the lifting system drives the pushing rod (81) to rise and fall.
4. The tooling for simulating wellhead testing of elevators, slips and rings according to claim 2, characterized in that: Conveying assemblies (86) are provided on both sides of the pushing plate (82), the two conveying assemblies (86) are symmetrically arranged about the pushing plate (82), and the two conveying assemblies (86) are detachably fixedly connected to the pushing rod (81); The conveying assembly (86) comprises a support plate (861) and two conveying units (862); the front and rear sides of the support plate (861) both extend upward to form a connecting portion (863); a second supporting wheel (864) is provided between the two connecting portions (863); the second supporting wheel (864) is rotatably connected to the two connecting portions (863); the two conveying units (862) are connected to the two connecting portions (863) in a one-to-one correspondence; the two conveying units (862) are symmetrically arranged front and rear; and the second supporting wheel (864) is located below the conveying unit (862).
5. The tooling for simulating wellhead testing of elevators, slips and rings according to claim 4, characterized in that: The conveying unit (862) comprises a connecting frame (8621), a conveying wheel (8622) is mounted on the connecting frame (8621), the conveying wheel (8622) is connected to a driving source, the connecting frame (8621) is located between two connecting parts (863), and the connecting frame (8621) is elastically slidably connected to the connecting parts (863) along the front-rear direction.
6. The tooling for simulating wellhead testing of elevators, slips and rings according to claim 5, characterized in that: In the same conveying assembly (86), the distance between the two connecting frames (8621) is equal to the distance between the two conveying wheels (8622), and the distance between the two connecting frames (8621) is smaller than the distance between the two limiting portions (83).
7. The tooling for simulating wellhead testing of elevators, slips and rings according to claim 5, characterized in that: The connecting frame (8621) is provided with a plurality of moving rods (8623), the plurality of moving rods (8623) being distributed up and down, the moving rods (8623) passing through the connecting portion (863), one end of the moving rod (8623) being fixedly arranged on the connecting frame (8621), and the other end of the moving rod (8623) being connected to the connecting portion (863) via a spring (8624).
8. The tooling for simulating wellhead testing of elevators, slips and rings according to claim 5, characterized in that: In the same conveying assembly (86), the tops of the two connecting frames (8621) on the sides close to each other are both provided with chamfers (8625), and the two chamfers (8625) form an inverted figure eight shape.
9. The tooling for simulating wellhead testing of elevators, slips and rings according to claim 4, characterized in that: The push rod (81) is provided with a lifting ring (87) on a movable sleeve. The lifting ring (87) is fixedly connected to the two support plates (861). The push rod (81) is provided with two insertion holes (88). The two insertion holes (88) are distributed along the length direction of the push rod (81). The lifting ring (87) is locked with the push rod (81) by means of a latch (89). The latch (89) is inserted into one of the insertion holes (88).
10. A simulated wellhead test method, characterized in that: Including rathole simulation method, catwalk simulation method, wellhead simulation method and elevator (9) impact test method; The rat hole simulation method comprises the following steps: removing the horizontal frame (4), passing the simulated pipe string (5) vertically through the rat hole simulation end (2), and equipping the simulated pipe string (5) with an elevator (9), wherein the slip (10) is located in the elevator (9), and the simulated pipe string (5) is lifted and installed in the rat hole simulation end (2) by lifting the elevator (9); The catwalk simulation method comprises the following steps: placing a simulated pipe column (5) horizontally, and supporting one end of the simulated pipe column (5) by a support member; then, tilting the simulated pipe column (5) by a pushing mechanism (8); connecting a lifting ring (12) to an elevator (9); and lifting the elevator (9) by the lifting ring (12) by a lifter (11); wherein the tilt angle of the simulated pipe column (5) is adjusted by the pushing mechanism (8), thereby simulating the situation of the elevator (9) and the simulated pipe column (5) under different slope conditions; The wellhead simulation method comprises the following steps: lifting a lifting ring (12) by means of a lifter (11), so that the lifting ring (12) lifts an elevator (9), thereby making the elevator (9) cooperate with a catwalk simulation end; The catwalk simulation end is an adjustable slip (10) structure, which is used to restore the actual wellhead environment and facilitate the actual on-site verification of the process test elevator (9), slip (10) and lifting ring (12); The impact test method of the elevator (9) has the following steps: a simulated pipe column (5) placed vertically is fixed by a horizontal frame (4), and the simulated pipe column (5) vertically passes through a simulated end (2) of a rat hole, the elevator (9) is in an open state, and the lifting ring (12) drives the elevator (9) to move synchronously and impact the simulated pipe column (5) through the movement of the lifter (11), and the elevator (9) automatically closes.