CN114622841B - Well repairing device - Google Patents
Well repairing device Download PDFInfo
- Publication number
- CN114622841B CN114622841B CN202210516512.8A CN202210516512A CN114622841B CN 114622841 B CN114622841 B CN 114622841B CN 202210516512 A CN202210516512 A CN 202210516512A CN 114622841 B CN114622841 B CN 114622841B
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- China
- Prior art keywords
- grippers
- derrick
- oil pipe
- elevator
- clamping device
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
- E21B19/06—Elevators, i.e. rod- or tube-gripping devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to the field of oil exploitation, in particular to an automatic opening and closing elevator and a workover rig for a workover rig, which comprise a base and a support, wherein the base is connected with a clamping device in a rotating connection mode, the support is connected with a transmission mechanism in a rotating connection mode, the transmission mechanism is connected with the clamping device, the transmission mechanism drives the clamping device to rotate relative to the base, a notch is formed in the clamping device, and the clamping device rotates to open and close the notch.
Description
Technical Field
The invention relates to the technical field of oil exploitation, in particular to a well repairing device.
Background
The oil drilling machine is very core equipment in an oil well, the oil drilling machine needs to lower oil pipes after the well is drilled, the oil pipes are connected through threads, the threads are arranged on the inner sides of couplings at the end parts of the oil pipes, the diameters of the couplings are larger than the diameters of the oil pipes, in the connection process between the oil pipes, firstly, one oil pipe is hoisted, the couplings of the hoisted oil pipes are aligned with the couplings of the oil pipes in the well, then, the oil pipes are connected in a rotating mode through the threads, the butt joint operation of the oil pipes is achieved, then, the butted oil pipes are continuously lowered, when the oil pipes go deep into the well, the steps are repeated, then, one oil pipe is continuously connected, and the lowering of a plurality of oil pipes is achieved.
Because the oil pipe is deeply arranged in the well and is influenced by the pressure in the well and the self gravity, the oil pipe is difficult to be manually lifted out of the well, so that an elevator which is lifted at a high speed is required to be utilized to grasp a coupling of the oil pipe in the process of lifting the elevator at the high speed and lift the oil pipe out of the well, the traditional elevator does not have the function of automatically clamping a casing pipe, one part of the oil pipe in the well is on the ground and is positioned in a derrick, a derrick hand is required to hold the end part of the oil pipe on the ground in a place which is more than ten meters high, the oil pipe is thrown into the elevator and is manually closed, and then the elevator lifts the oil pipe out of the well.
Because the oil pipe is thrown tightly by the derrick handle, the distance between the elevator which is lifted at a high speed and the head of the elevator is only a few centimeters, and the derrick handle is required to close the elevator very quickly, under the conditions of the weight of the elevator close to three jacks and the high-speed lifting, the derrick handle which is operated by two hands at high altitude can be in danger of breaking the elevator without paying attention to the derrick handle, and the danger of the life safety of the derrick handle is greatly threatened.
Therefore, there is a need for an elevator with an automatic opening and closing function to overcome the drawbacks of the prior art.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a well repairing device.
The technical scheme of the invention is as follows:
a well servicing device, characterized by: including base, support, play to rise device, baffle and derrick, its characterized in that: the base is rotatably connected with a clamping device, a gap is formed in the clamping device, the clamping device rotates to enable the gap to be enlarged or reduced, the lifting device is arranged at the top of the derrick and is connected with the workover rig through an automatic opening and closing elevator, and the baffle plates are arranged on two sides of the shifting plate and fixed on the inner side wall of the derrick;
the clamping device comprises two symmetrical grippers, the grippers are connected with the base in a rotating mode, grooves and guide grooves are formed in the grippers, the grooves are combined to form a notch, a gear rod is connected in the guide grooves in a sliding mode, the support is provided with a transmission mechanism, the transmission mechanism drives the gear rod to slide in the guide grooves, the gear rod slides in the guide grooves and then drives the grippers to rotate relative to the base, the grippers can be opened or closed when rotating, the grippers are opened, the notches are enlarged, the grippers are closed, and the notches are reduced. The diameter of the notch when the notch is reduced is smaller than the diameter of a coupling on the oil pipe;
the baffle is arranged on two sides of the shifting sheet and fixed on the inner side wall of the derrick, when the elevator is pulled by the lifting device to perform lifting motion, the baffles at two ends of the shifting sheet can block the shifting sheet, the shifting sheet rotates relative to the support after being blocked by the baffles, the baffles are rectangular blocks, so that the shifting sheet is blocked to close a gap in the process of passing through the baffles, after the gap is reduced, the tongs are contacted with a coupling of an oil pipe, the closed tongs block the oil pipe, and the elevator lifts the oil pipe in the derrick.
Furthermore, the transmission mechanism comprises a shifting sheet, a first rotating member and a connecting plate, the first rotating member is arranged on the support and rotates relative to the support, one end of the first rotating member is fixedly connected with the shifting sheet, the other end of the first rotating member is fixedly connected with the connecting plate, and the connecting plate is fixedly connected with the gear lever.
The beneficial effect of adopting the further scheme is that: the connecting plate at the other end of the first rotating part is driven to rotate by stirring the shifting piece, the connecting plate is further connected with the blocking rod, the blocking rod is connected with the gripper, the gripper is rotated by stirring the shifting piece, the mechanical control gripper is rotated, direct contact between a derrick hand and an elevator is avoided, and life safety threat of the elevator to the derrick hand is reduced.
Furthermore, the top of the support is provided with a pull ring, and the pull ring is provided with a through hole.
Adopt above-mentioned preferred scheme's beneficial effect to lie in: the elevator can be conveniently lifted by the lifting device by pulling the pull ring.
Furthermore, the base is connected with the clamping device through a second rotating part.
Furthermore, the end part of the poking sheet is designed to be a rounded corner.
The beneficial effect of adopting the further scheme is that: the round-chamfered plectrum can be more favorable to the drive of machinery, has also played the effect that is prevented by the fish tail when the hand is stirred the plectrum to the derrick simultaneously.
Further, the first rotating member is a rotating shaft.
The beneficial effect of adopting the further scheme is that: the connection mode of the rotating shaft is stable, and the structure is simple.
Further, the second rotating member is a rotating shaft.
The beneficial effect of adopting the further scheme is that: the connection mode of the rotating shaft is stable, and the structure is simple.
The beneficial effects of this technical scheme are:
on one hand, the base is rotationally connected with the clamping device, the connecting plate on the support can drive the clamping device to rotate relative to the base, the rotation of the clamping device can cause the opening to be enlarged or reduced, when the connecting plate drives the clamping device to rotate until the opening is enlarged, the elevator which ascends at a high speed puts the oil pipe in the derrick into the opening, when the connecting plate drives the clamping device to rotate in the opposite direction to cause the opening to be reduced, the clamping device clamps the oil pipe, the elevator which continuously ascends drives the oil pipe to move upwards to finish the lifting process of the oil pipe, at the moment, the derrick hand only needs to wait for the completion of the lifting process of the elevator to take down the oil pipe on the elevator and rotationally connect and fix the oil pipe with another oil pipe, the two grippers rotate relative to the base to finish the clamping and loosening processes of the elevator on the oil pipe, the connecting plate controls the rotation amplitude of the grippers, and when the connecting plate drives the blocking rod to slide in the guide groove, the gear rod drives the gripper to rotate relative to the base, and flexible control of the size of the notch is achieved.
Compared with the prior art, the invention avoids the contact of the derrick hand and the front side of the elevator in motion, and only needs the derrick hand to complete the butt joint operation of the upper oil pipe and the lower oil pipe after the elevator is stable, thereby greatly ensuring the life safety of the derrick hand in the working process.
On the other hand, be provided with the baffle in the derrick among this technical scheme, when lifting device traction elevator carries out the ascending motion, the baffle at plectrum both ends can block the plectrum, owing to rotate with the relative support of first rotating member of plectrum fixed connection, so receive the plectrum that the baffle blockked and can rotate relative support to drive the connecting plate and the shelves pole rotation of first rotating member other end, finally realize the grow and reduce of breach through opening and closing of tongs.
Compared with the prior art, the invention completely replaces the function of the derrick hand in the process of clamping the oil pipe by the elevator through mechanical equipment, avoids the contact of the derrick hand and the front side of the elevator lifted at high speed, and greatly reduces the life safety threat of the elevator to the derrick hand.
Drawings
FIG. 1 is a view showing the elevator in a closed state;
FIG. 2 is a view of the elevator in an open position;
FIG. 3 is a front view of a well servicing apparatus of the present invention;
FIG. 4 is a side view of a well servicing apparatus of the present invention;
1. a shifting sheet; 2. a first rotating member; 3. a pull ring; 4. a through hole; 5. a connecting plate; 6. a gear lever; 7. a groove; 8. a clamping device; 9. a base; 10. a second rotating member; 11. a guide groove; 12. a support; 13. a hoisting device; 14. a coupling; 15. a baffle plate; 16. an oil pipe; 17. a notch; 18. a derrick; 19. a gripper; 20. and a transmission mechanism.
Detailed Description
In order to make the technical means, technical features, objects and technical effects of the present invention easily understandable, the present invention is further described below with reference to the specific drawings.
The first embodiment is as follows:
as shown in fig. 1 and 2, the embodiment provides an automatic opening and closing elevator for a workover rig, which includes a base 9 and a support 12, wherein the base 9 is connected with a clamping device 8 by a rotary connection manner, the support 12 is connected with a transmission mechanism 20 by a rotary connection manner, the transmission mechanism 20 is connected with the clamping device 8, preferably, the base 9 is perpendicular to the support 12, the base 9 is connected with the clamping device 8 by a rotary connection manner, a gap 17 is formed on the clamping device 8, the clamping device 8 rotates to make the gap 17 increase or decrease, the clamping device 8 includes two symmetrically arranged grippers 19, the two grippers 19 rotate relative to the base 9, grooves 7 are formed on the grippers 19, the grooves 7 on the two grippers 19 are combined to form a gap 17, when the gap 17 decreases, the diameter is smaller than the diameter of a coupling 14 on an oil pipe 16, and when the gap 17 decreases, the gap is circular, the circular notch 17 protects the oil pipe 16, so that the elevator is more convenient to grab the oil pipe 16, and extrusion of corners of other notches 17 such as a square notch on the oil pipe 16 is avoided.
The transmission mechanism 20 comprises a shifting sheet 1, a first rotating member 2 and a connecting plate 5, the first rotating member 2 is arranged on a support 12 and rotates relative to the support 12, one end of the first rotating member 2 is fixedly connected with the shifting sheet 1, the other end of the first rotating member 2 is fixedly connected with the connecting plate 5, the bottom of the connecting plate 5 is connected with a blocking rod 6, the shifting sheet 1 is used for driving the connecting plate 5 at the other end of the first rotating member 2 to rotate, the connecting plate 5 is also connected with the blocking rod 6, the blocking rod 6 is connected with a gripper 19, the gripper 19 rotates by shifting the shifting sheet 1, a pull ring 3 is arranged at the top of the support 12, a through hole 4 is formed in the pull ring 3, a lifting device 13 can conveniently lift the elevator by pulling the pull ring 3, the structure is simple, a guide groove 11 is formed in the gripper 19, the blocking rod 6 can slide in the guide groove 11, and the arrangement of the guide groove 11 has definite limitation on the movement mode and the movement direction of the gripper 19, the blocking rod 6 slides in the guide groove 11 relative to the gripper 19, the gripper 19 can rotate relative to the base 9 under the pushing force of the blocking rod 6, when the blocking rod 6 is far away from the second rotating piece 10 in the guide groove 11, the gripper 19 rotates under the pushing force of the blocking rod 6 to open the notch 17, when the blocking rod 6 is close to the second rotating piece 10 in the guide groove 11, the gripper 19 rotates under the pushing force of the blocking rod 6 to close the notch 17, the end part of the shifting piece 1 is designed to be a fillet, the shifting piece 1 with the fillet can be more beneficial to mechanical driving, and the effect of preventing the shifting piece 1 from being scratched when being manually shifted by a derrick hand is achieved, the first rotating piece 2 is a rotating shaft, the connecting mode of the rotating shaft is stable, and the structure is simple.
As shown in fig. 3 and 4, the embodiment further provides a workover rig, which includes any one of the automatic opening and closing elevator for workover rig, a hoisting device 13, a baffle 15 and a derrick 18, where the hoisting device 13 is arranged at the top of the derrick 18 and connected with an automatic opening and closing elevator for workover rig, the baffle 15 is arranged at both sides of the paddle 1 and fixed on the inner side wall of the derrick 18, when the hoisting device 13 pulls the elevator to perform an ascending motion, the baffles 15 at both ends of the paddle 1 can block the paddle 1, since the first rotating member 2 fixedly connected with the paddle 1 can rotate relative to the support 12, the paddle 1 blocked by the baffle 15 can rotate relative to the support 12, thereby driving the connecting plate 5 and the stop lever 6 at the other end of the first rotating member 2 to rotate, the rotation of the gripper 19 drives the gap 17 to increase or decrease, the baffle 15 is a rectangular block and has a certain length, the pick 1 is blocked during the passage of the barrier 15 so that the gap 17 is closed, and after the gap 17 is reduced, the gripper 19 contacts the coupling 14 of the tubing 16, and since the reduced diameter of the gap 17 is smaller than the coupling 14 on the tubing 16, the closed gripper 19 grips the tubing 16 and the elevator lifts the tubing 16 in the derrick 18.
The shifting piece 1 is connected through a spring or a torsion spring, the spring can control the resetting of the shifting piece 1, after the shifting piece 1 rises to the position above the baffle 15 from the lower side, the spring can pull the shifting piece back to the position of the shifting piece 1 in fig. 3, the hand grip 19 is opened at the moment, the diameter of the notch 17 is larger than that of the oil pipe 16, the oil pipe 16 is automatically loosened by the clamping device 8, so that the hoisting process of the elevator on the oil pipe 16 is realized, the contact of a derrick hand on the elevator in the high-speed hoisting process of the elevator is avoided, the safety threat of the elevator on the derrick hand is reduced, the elevator descends and is blocked after the baffle 15, and due to the existence of the spring or the torsion spring, the shifting piece 1 can return to the position of the shifting piece 1 in fig. 3 after passing through the baffle 15, so that the elevator can conveniently hoist the oil pipe 16 next time.
In summary, the embodiments of the present invention are merely exemplary and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made according to the content of the claims of the present invention should fall within the technical scope of the present invention.
Claims (6)
1. A well workover device which characterized in that: including base (9), support (12), hoisting apparatus (13), baffle (15) and derrick (18), its characterized in that: the base (9) is rotatably connected with a clamping device (8), a notch (17) is formed in the clamping device (8), the clamping device (8) rotates to enable the notch (17) to be enlarged or reduced, the lifting device (13) is arranged at the top of the derrick (18) and connected with the workover rig through an automatic opening and closing elevator, and the baffle plates (15) are arranged on two sides of the shifting block (1) and fixed on the inner side wall of the derrick (18);
the clamping device (8) comprises two symmetrical grippers (19), the grippers (19) are rotatably connected with the base (9), grooves (7) and guide grooves (11) are formed in the grippers (19), notches (17) are formed by combining the grooves (7), a blocking rod (6) is slidably connected in the guide grooves (11), a transmission mechanism (20) is installed on the support (12), the transmission mechanism (20) drives the blocking rod (6) to slide in the guide grooves (11), the blocking rod (6) slides in the guide grooves (11) to further drive the grippers (19) to rotate relative to the base (9), the grippers (19) can be opened or closed when rotating, the grippers (19) are opened, the notches (17) are enlarged, the grippers (19) are closed, the notches (17) are reduced, and the diameter of the reduced notches (17) is smaller than that of a coupling (14) on the oil pipe (16), the transmission mechanism (20) comprises a shifting piece (1), a first rotating piece (2) and a connecting plate (5), the first rotating piece (2) is arranged on the support (12) and rotates relative to the support (12), one end of the first rotating piece (2) is fixedly connected with the shifting piece (1), the other end of the first rotating piece (2) is fixedly connected with the connecting plate (5), and the connecting plate (5) is fixedly connected with the gear lever (6);
the oil pipe lifting device is characterized in that the baffle plates (15) are arranged on two sides of the shifting sheet (1) and fixed on the inner side wall of the derrick (18), when the lifting device (13) pulls the elevator to perform lifting motion, the baffle plates (15) at two ends of the shifting sheet (1) can block the shifting sheet (1), the shifting sheet (1) rotates relative to the support (12) after being blocked by the baffle plates (15), the baffle plates (15) are rectangular blocks, so that the shifting sheet (1) is blocked by the baffle plates (15) to close the gaps (17), after the gaps (17) are reduced, the grippers (19) are in contact with a coupling (14) of the oil pipe (16), the closed grippers (19) clamp the oil pipe (16), and the elevator lifts the oil pipe (16) in the derrick (18).
2. A well servicing device according to claim 1, wherein: the top of the support (12) is provided with a pull ring (3), and the pull ring (3) is provided with a through hole (4).
3. A well servicing device according to claim 1, wherein: the base (9) is connected with the clamping device (8) through a second rotating piece (10).
4. A well servicing device according to claim 1, wherein: the end part of the shifting sheet (1) is designed to be a rounded corner.
5. A well servicing device according to claim 1, wherein: the first rotating piece (2) is a rotating shaft.
6. A well servicing device according to claim 3, wherein: the second rotating member (10) is a rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210516512.8A CN114622841B (en) | 2022-05-13 | 2022-05-13 | Well repairing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210516512.8A CN114622841B (en) | 2022-05-13 | 2022-05-13 | Well repairing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114622841A CN114622841A (en) | 2022-06-14 |
| CN114622841B true CN114622841B (en) | 2022-08-12 |
Family
ID=81907144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210516512.8A Active CN114622841B (en) | 2022-05-13 | 2022-05-13 | Well repairing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114622841B (en) |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101637909B (en) * | 2009-08-26 | 2011-01-12 | 四川宏华石油设备有限公司 | Clamping mechanism |
| CN101666208B (en) * | 2009-09-18 | 2014-04-16 | 山东胜利石油石化装备研究中心 | Gear rack lifting drilling machine |
| CN101985873B (en) * | 2010-05-12 | 2012-11-14 | 殷江虹 | Mechanical operation device for lifting and lowering oil tube of oil well |
| CN103306616B (en) * | 2013-05-10 | 2015-05-20 | 淮南矿业(集团)有限责任公司 | Sleeve-pipe clamp and sleeve-pipe downing device |
| CN104234643B (en) * | 2013-06-08 | 2016-08-31 | 遂宁市长丰机械科技有限公司 | The automatics of drilling well |
| AU2014203399A1 (en) * | 2014-03-21 | 2015-10-08 | Jtb Tools & Oilfield Services Llc | Apparatus and Method for the Installation or Removal of a Rotary Control Device Insert or a Component Thereof |
| CN106761482B (en) * | 2016-12-01 | 2019-03-22 | 太原理工大学 | A kind of Automatic-clamping release mechanism formula chuck |
| CN207715099U (en) * | 2017-12-22 | 2018-08-10 | 济南芯乐智能设备有限公司 | A kind of automatic hydraulic elevator apparatus |
| CN108316869B (en) * | 2018-04-12 | 2024-02-13 | 吉林大学 | Pressure-maintaining type drill stem string transportation manipulator with curved wedge for driving and clamping |
| CN209670923U (en) * | 2019-03-13 | 2019-11-22 | 胜利油田胜源实业开发有限公司 | A kind of elevator apparatus applied to oil drilling |
| CN209621237U (en) * | 2019-03-21 | 2019-11-12 | 吉林大学 | A kind of drilling tool spinner and unloading device |
| CN210152571U (en) * | 2019-06-03 | 2020-03-17 | 江苏如通石油机械股份有限公司 | Elevator for well repair |
| CN211008506U (en) * | 2020-04-15 | 2020-07-14 | 江苏赛瑞机器人装备有限公司 | Oil pipe rod barrel type elevator with locking and guiding functions |
| CN212671608U (en) * | 2020-05-27 | 2021-03-09 | 中国石油天然气股份有限公司 | Wellhead oil pipe moving device |
| CN214035571U (en) * | 2020-12-01 | 2021-08-24 | 山东海洋工程装备有限公司 | Novel hydraulic elevator for lifting pipe column |
| CN114320193A (en) * | 2021-12-31 | 2022-04-12 | 中石化四机石油机械有限公司 | Self-adaptive centering centralizer for oil pipe of workover automation platform and use method of self-adaptive centering centralizer |
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2022
- 2022-05-13 CN CN202210516512.8A patent/CN114622841B/en active Active
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| CN114622841A (en) | 2022-06-14 |
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