CN117108232B

CN117108232B - Geothermal well salvaging device

Info

Publication number: CN117108232B
Application number: CN202311379217.3A
Authority: CN
Inventors: 张昌生; 季秀卿; 薛素芳; 闫冬梅; 薛鹏飞; 杜奕廷; 郭美慧; 郭艳玲
Original assignee: Shanxi Geological Engineering Survey Institute Co ltd
Current assignee: Shanxi Geological Engineering Survey Institute Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-01-12
Anticipated expiration: 2043-10-24
Also published as: CN117108232A

Abstract

The application discloses a geothermal well salvaging device, which relates to the technical field of geothermal well construction, and comprises an overshot, wherein a clamping assembly and a lifting mechanism are arranged in the overshot; the clamping assembly is arranged in the overshot in a sliding manner, the clamping assembly comprises two clamping jaws which are arranged oppositely, a driving piece used for driving the two clamping jaws to clamp the object to be salvaged is arranged in the overshot, and the lifting mechanism comprises a hook hanging piece and a driving assembly used for driving the hook hanging piece to move along the vertical direction. The application has the effect of improving salvaging efficiency.

Description

Geothermal well salvaging device

Technical Field

The application relates to the technical field of geothermal well construction, in particular to a geothermal well salvaging device.

Background

Drilling wells that exploit thermal resources below the surface are called geothermal wells, which are typically over 3000 meters deep, and heat or other energy conversion is accomplished by extracting geothermal water, either in vapor or liquid form.

Because the degree of depth is too big, can use the well water pump when the water source is extracted in geothermal well, the well water pump is because wire rope fracture or other human error drop behind the shaft bottom when using, the wire rope, the cable that well water pump is connected can all fall into the well along with the well water pump in, and the cable is probably broken into the multistage, then need carry out many times salvage when carrying out the well water pump salvage, wait for salvage the thing with wire rope in proper order and drag for out, just can be smoothly with the well water pump outside the well. Because geothermal well degree of depth is too big, need constantly drag for the hook and drag for from the well when repeatedly salvaging, the time spent is comparatively loaded down with trivial details, the time consuming of operation to the bottom of the well again, leads to salvaging inefficiency.

Disclosure of Invention

In order to improve salvaging efficiency, the application provides a geothermal well salvaging device.

The application provides a geothermal well fishing device, adopts following technical scheme:

the geothermal well salvaging device comprises a salvaging barrel, wherein a clamping assembly and a lifting mechanism are arranged in the salvaging barrel;

the clamping assembly is arranged in the overshot in a sliding manner, the clamping assembly comprises two clamping jaws which are arranged oppositely, a driving piece used for driving the two clamping jaws to clamp the object to be salvaged is arranged in the overshot, and the lifting mechanism comprises a hook hanging piece and a driving assembly used for driving the hook hanging piece to move along the vertical direction.

By adopting the technical scheme, after the overshot is moved into the geothermal well, the hooking member can hook the cable or the wire rope and the like in the well to-be-fished object, and when the hooking member hooks the cable, the driving assembly drives the hooking member to vertically move upwards so as to transport the cable into the overshot; the driving piece drives the clamping assembly to clamp the well water pump, and the overshot ascends to drag out the well water pump from the well. And meanwhile, the salvage of the cable and the well water pump is realized, and the salvage frequency is reduced, so that the salvage efficiency is improved.

Optionally, the driving assembly includes a driving rope and a winding rod rotatably arranged in the overshot, one end of the driving rope is fixed on the hook hanging piece, and the other end of the driving rope is fixed on the winding rod.

Through adopting above-mentioned technical scheme, hook hangs behind the piece hooked cable, rotates around the reel pole and carries out the rolling to the drive rope for the hook that is fixed in drive rope one end hangs vertical upward movement, in transporting the cable to overshot, makes things convenient for the clamping component to carry out the centre gripping to the well water pump.

Optionally, the driving assembly further comprises a first bevel gear coaxially sleeved at one end of the winding rod, and a second bevel gear is meshed with one side of the first bevel gear; one end of the second bevel gear is coaxially fixed with a transmission connecting rod, and one end of the transmission connecting rod is connected with a driving source for driving the second bevel gear to rotate.

Through adopting above-mentioned technical scheme, the drive source drive transmission connecting rod rotates in order to indirectly drive second bevel gear rotation, and first bevel gear and second bevel gear meshing, so first bevel gear rotates along with the second commentaries on classics gear and rotates thereby drives around the reel pole, receive and releases the drive rope.

Optionally, the clamping assembly further comprises a mounting block slidably connected within the overshot; the clamping jaw is rotatably connected to one end of the mounting block, and the driving piece is used for driving the clamping jaw to rotate.

By adopting the technical scheme, the mounting block is in sliding connection with the overshot, so that the sliding connection of the clamping assembly in the overshot is realized; when the cable is transferred from the well water pump by the hooking piece, the overshot continues to move downwards, so that the two clamping jaws are sleeved on the well water pump; the driving piece drives the two clamping jaws to rotate towards the direction of approaching each other so as to clamp the well water pump.

Optionally, the driving piece comprises driving blocks corresponding to the clamping jaws one by one, and the mounting block is further provided with a first resetting piece for driving the clamping jaws to rotate in a direction away from the mounting block; the overshot is internally provided with a locking piece for locking the mounting block, and the locking piece is positioned at one side of the driving block away from the clamping jaw.

By adopting the technical scheme, when the overshot is sleeved on the well water pump and continuously moves downwards, the well water pump moves into the overshot and drives the clamping assembly to move in the overshot towards the direction close to the driving block, and the clamping jaw rotates towards the direction far away from the driving block under the action of the driving block so as to clamp the well water pump; in addition, the installation piece upwards moves, and when two clamping jaws rotate to clamp the well water pump, the installation piece is also locked by the locking piece, so that the clamping jaws and the driving block are not easy to generate relative movement again, and stable clamping of the clamping assembly on the well water pump is realized.

Optionally, the locking piece includes sliding set up in the locking piece in the overshot, set up on the installation piece and supply the joint groove of locking piece joint.

Through adopting above-mentioned technical scheme, when the clamping component moves up vertically under the effect of well water pump, the joint groove gradually moves to relatively with the locking piece, and the locking piece slides into the joint inslot to realize the locking to the installation piece.

Optionally, the locking piece includes grafting portion and slide bar, the cover is equipped with on the slide bar and is used for the drive the second piece that resets that the locking piece reset, slide bar one end passes overshot and be connected with the operation panel.

By adopting the technical scheme, after the mounting block moves upwards to enable the clamping groove to be opposite to the locking block, the locking block slides into the clamping groove under the action of the second resetting piece so as to lock the vertical position of the mounting block; when the clamping assembly is required to loosen the well opening water pump, the sliding rod is pulled to move towards the direction far away from the mounting block through the operation plate, the inserting part can be pulled out of the clamping groove, and the mounting plate is unlocked so that the two clamping jaws do not clamp the well opening water pump any more.

Optionally, the inside coaxial spacing ring that is fixed with of overshot, installation piece sliding connection in the spacing ring, installation piece one end be provided with be used for with the butt edge that the spacing ring supported, the installation piece is close to the one end cover of spacing ring is equipped with the damping sleeve.

By adopting the technical scheme, when the mounting block slides in the overshot, the abutting edge on the mounting block can abut against the limiting ring so as to reduce the probability of the clamping assembly being separated from the overshot; the damping sleeve on the mounting block is arranged to preliminarily lock the position of the mounting block in the overshot so as to reduce the probability that the overshot is sleeved in front of the well water pump and the clamping assembly slides in the overshot.

Optionally, the outer side wall of the overshot is rotatably connected with a hook rod, and the overshot is provided with a storage groove for accommodating the hook rod.

Through adopting above-mentioned technical scheme, set up the hook pole, when clamping assembly presss from both sides tight well water pump and moves up along with overshot, the hook pole is the inclined state with overshot relatively under self gravity effect, can catch on wire rope or the cable that hangs on the wall of a well and take out to the pit, further improves salvage efficiency. The setting of taking in and dragging out the groove makes the hook pole in the en route of moving to the well along with overshot, if the barrier on the wall of a well hinders the hook pole to move down, the hook pole can rotate to the storage inslot under the effect of barrier, is convenient for overshot and descends smoothly.

Optionally, the hooking member comprises a wire hooking hook and a magnetic attraction member which are fixedly connected.

Through adopting above-mentioned technical scheme, the string hanging hook is used for hooking the cable, wire net waiting to drag for the thing, and the setting of piece is inhaled to magnetism is used for adsorbing the magnetic article that falls into the well, realizes the salvaging to magnetic article, improves geothermal well fishing device's practicality.

In summary, the present application includes at least one of the following beneficial effects:

1. the clamping assembly and the lifting mechanism are arranged at the same time, the lifting mechanism can hook a cable or a wire rope in a well to wait for a salvage object to be transported into the salvage barrel, the clamping assembly clamps the well water pump, the salvage barrel ascends to salvage the well water pump from the well, and meanwhile, the salvage of the cable and the well water pump is realized, so that the salvage frequency is reduced;

2. in the application, the driving piece is arranged as the driving block corresponding to the clamping jaws one by one, when the well water pump is gradually sleeved in the overshot, the well water pump and the driving block act simultaneously to enable the two clamping jaws to rotate in the direction away from the driving block at the same time so as to clamp the well water pump;

3. according to the well water pump locking device, one end of the sliding rod of the locking block penetrates through the overshot and is connected with the operation plate, when the clamping assembly is required to loosen the well water pump, the sliding rod is pulled to move in the direction away from the installation block through the operation plate, so that the inserting part can be pulled out from the clamping groove, and an operator can conveniently take out the well water pump;

4. the utility model provides a rotate on overshot lateral wall and be connected with the hook pole, salvage the well water pump back when upwards moving when overshot, the hook pole can catch wire rope or cable that hangs on the wall of a well and take out to the well outside, further improves salvage efficiency.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present application;

FIG. 3 is a schematic view of the overshot partially in section showing the gripping assembly;

FIG. 4 is a schematic view of a partially enlarged structure at B in FIG. 3;

FIG. 5 is a schematic view of the overshot partially in section showing the drive assembly;

fig. 6 is a partially enlarged schematic structural view at a in fig. 2.

Reference numerals illustrate: 1. overshot; 11. a driving block; 12. a limiting ring; 121. a chute; 13. a storage groove; 14. a connector; 15. a protective cylinder; 16. a fixing plate; 2. a clamping assembly; 21. a clamping jaw; 211. a guide surface; 22. a mounting block; 221. an abutment edge; 222. a clamping groove; 223. a through hole; 23. a rotating shaft; 24. a first reset piece 3 and a hook hanging piece; 31. a wire hanging hook; 32. a magnetic attraction piece; 4. a drive assembly; 41. a drive rope; 42. winding a winding rod; 421. a baffle; 43. a first bevel gear; 44. a second bevel gear; 441. a transmission link; 45. a driving source; 5. a locking block; 51. a plug-in part; 52. a slide bar; 53. an operation panel; 54. a second reset member; 6. a damping sleeve; 7. a hook rod; 8. an anti-slip mat.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses a geothermal well fishing device, referring to fig. 1 and 2, a geothermal well fishing device includes an overshot 1 and a clamping assembly 2 disposed inside the overshot 1. Salvage is through being cylindric, and overshot 1 one end integrated into one piece has connector 14, and overshot 1 realizes being connected with other spare part through connector 14, and the tool of being convenient for will overshot 1 descends to the shaft bottom. In this embodiment, the connector 14 is specifically configured as a connection pipe, the inner side wall of the connection pipe is provided with an internal thread, and the outer diameter of the connection pipe is larger than the outer diameter of the overshot 1.

Referring to fig. 2 and 3, the clamping assembly 2 is located at the end of the overshot 1 remote from the joint head 14, the clamping assembly 2 comprising a mounting block 22 and two clamping jaws 21 connected to one end of the mounting block 22. The mounting block 22 is cylindrical and slidably disposed within the overshot 1. The end of the overshot 1, which is close to the clamping assembly 2, is provided with a limiting ring 12, and the limiting ring 12 is coaxially fixed in the overshot 1. The installation piece 22 passes the spacing ring 12 and with spacing ring 12 sliding connection, and the one end integrated into one piece that the installation piece 22 kept away from clamping jaw 21 has the butt edge 221, when the vertical downward slip of installation piece 22, the butt edge 221 can offset with spacing ring 12 to reduce the probability that clamping assembly 2 breaks away from in the overshot 1. The damping sleeve 6 is sleeved and fixed at one end of the mounting block 22 close to the abutting edge 221 so as to improve the friction force between the contact surface of the mounting block 22 and the limiting ring 12 and reduce the possibility that the mounting block 22 is randomly deviated in the overshot 1.

Referring to fig. 3 and 4, two clamping jaws 21 are disposed opposite to each other, a rotating shaft 23 is provided at one end of the clamping jaw 21 in a penetrating manner, and the clamping jaw 21 is hinged to the mounting block 22 through the rotating shaft 23. The rotary shaft 23 is provided with a first return member 24 for driving the jaw 21 to rotate in a direction away from the axis of the mounting block 22, the first return member 24 being embodied as a torsion spring in this embodiment. The first resetting piece 24 is sleeved on the rotating shaft 23, one end of the first resetting piece 24 is inserted into the mounting block 22, and the other end of the first resetting piece is propped against the clamping jaw 21. The first return element 24 is arranged such that the two clamping jaws 21 are in an open state. In order to improve the clamping strength when the clamping jaw 21 clamps the well water pump, an anti-slip pad 8 is fixed on the end surface of the clamping jaw 21, which is close to the axis of the mounting block 22.

Referring to fig. 3, a driving member for driving the clamping jaw 21 to rotate in the direction approaching to the axis of the mounting block 22 is further arranged in the overshot 1, a guiding surface 211 is arranged at one end of the clamping jaw 21 approaching to the mounting block 22, and the guiding surface 211 is arranged in a downward inclined manner in the direction far from the mounting block 22. The driving piece is specifically arranged as a driving block 11 corresponding to the clamping jaws 21 one by one, and the driving block 11 is positioned between the clamping jaws 21 and the limiting ring 12 and is fixedly connected with the inner side wall of the overshot 1. When the overshot 1 is moved to the upper part of the well water pump to salvage the well water pump, the overshot 1 is sleeved on the well water pump, so that the two clamping jaws 21 clamp the well water pump, and then the overshot 1 continues to move downwards, so that the well water pump is continuously inserted into the salvage pump. In the process that the well water pump gradually enters the salvage pump, the well water pump drives the clamping jaw 21 to move towards the direction close to the driving block 11, so that the guide surface 211 on the clamping jaw 21 is propped against the driving block 11, and the clamping jaw 21 gradually moves towards the direction close to the axis of the mounting block 22 under the action of the driving block 11, so that the two clamping jaws 21 further clamp the well water pump. In other embodiments, the number of jaws 21 can be set as the case may be.

Referring to fig. 3, there is also a locking element in the overshot 1 for locking the vertical position of the mounting block 22. The locking piece is specifically configured as a locking block 5 slidably arranged in the overshot 1, the locking block 5 comprises an integrally formed socket part 51 and a sliding rod 52, the socket part 51 is specifically configured as a hemisphere in this embodiment, and a circular operation plate 53 is fixed at one end of the sliding rod 52 away from the socket part 51. The operation plate 53 is provided with a force application groove. The inner side wall of the limiting ring 12 is provided with a sliding groove 121 for the plug-in part 51 to slide, the sliding rod 52 sequentially penetrates through the limiting ring 12 and the overshot 1, and the overshot 1 is provided with a yielding hole for the operation plate 53 to penetrate. The sliding groove 121 is internally provided with a second reset piece 54, the second reset piece 54 is specifically provided as a reset spring, the second reset piece 54 is sleeved on the sliding rod 52, one end of the second reset piece 54 is fixedly connected with the inner side of the sliding groove 121, and the other end of the second reset piece 54 is fixedly connected with the plug-in connection part 51.

The outer side wall of the mounting block 22 is provided with a clamping groove 222 for clamping the plugging part 51, and the clamping grooves 222 are provided with a plurality of clamping grooves at intervals along the axial direction of the mounting block 22. In this embodiment, two locking blocks 5 are specifically disposed, and are disposed in the limiting ring 12 oppositely. When the mounting block 22 moves upwards, so that the plug-in portion 51 is opposite to the clamping ring, the plug-in portion 51 slides into the clamping groove 222 at a proper position under the action of the second reset piece 54, so that the mounting block 22 is locked, and the two clamping jaws 21 can be kept in a clamping state.

Referring to fig. 3, in order to reduce the foreign matter such as soil and gravel in the geothermal well from being covered on the slide rod 52 and the operation plate 53, the slide rod 52 or the operation plate 53 is prevented from sliding normally. The outer side wall of the overshot 1 is fixedly provided with a protective cylinder 15, the protective cylinder 15 and the operation plate 53 are coaxially arranged, and the inner diameter of the protective cylinder 15 is equal to the outer diameter of the operation plate 53. The protective cylinder 15 can surround the operation plate 53 and the slide rod 52 to reduce the probability of the slide rod being covered with debris such as soil and gravel in the well.

When the well water pump falls into the well, the cable, the steel wire rope and other parts connected with the well water pump also fall into the well along with the well water pump, and the cable or the steel wire rope is usually in a fracture state and is positioned above the well water pump. And the salvaging of the well water pump is interfered. In order to remove the wire-like objects to be salvaged above the well water pump from above the well water pump, a hoisting mechanism is also provided in the overshot 1.

Referring to fig. 3 and 5, the lifting mechanism includes a hooking member 3 and a driving assembly 4 driving the lifting member to move in a vertical direction. The hooking member 3 includes two integrally formed wire hooks 31, and a magnetic attraction member 32 is fixed between the two wire hooks 31. The magnetic attraction member 32 is specifically provided as a magnet in the present embodiment. The driving assembly 4 includes a driving rope 41, a winding rod 42, and a bevel gear set driving the winding rod 42 to rotate. One end of the driving rope 41 is fixedly connected with the hooking member 3, and the other end passes through the mounting block 22 and is fixed on the winding rod 42. The winding rod 42 is located at one end of the overshot 1 close to the connector 14, the winding rod 42 is rotatably connected in the overshot 1, and the winding rod 42 is perpendicular to the axial direction of the overshot 1. Two baffles 421 are arranged on the winding rod 42 at intervals, the baffles 421 are sleeved and fixed on the winding rod 42, and the arrangement of the baffles 421 limits the winding area of the driving rope 41. The bevel gear group comprises a first bevel gear 43 and a second bevel gear 44 which are meshed with each other, and the first bevel gear 43 is coaxially sleeved on one side of the winding rod 42 and fixedly connected with the winding rod 42. A transmission link 441 is coaxially fixed to a side of the second bevel gear 44 remote from the winding rod 42, and one end of the transmission link 441 is connected to a driving source 45. In the present embodiment, the driving source 45 is specifically provided as a motor. The overshot 1 is welded with a fixing plate 16 therein, and a driving source 45 is fixed to the fixing plate 16.

When the overshot 1 moves to the salvage object, the hooking member 3 hooks the wire or the steel wire to-be-salvaged object, and the driving source 45 drives the second bevel gear 44 to rotate so as to indirectly drive the winding rod 42 to rotate, thereby realizing winding of the driving rope 41. The mounting block 22 is provided with a through hole 223. When the drive rope 41 is reeled up, the cable or the like suspended from the hook 3 moves into the overshot 1 with the hook 3.

Referring to fig. 1 and 6, the overshot 1 is further provided with a hooking rod 7 at the end near the gripping assembly 2. The outer side wall of the overshot 1 is recessed to form receiving grooves 13, in this embodiment two receiving grooves 13 are provided opposite each other. One end of the hook rod 7 is hinged on the inner side wall of the storage groove 13, and when the hook rod 7 rotates towards the direction approaching the overshot 1, the hook rod 7 can be stored in the storage groove 13. When the clamping component 2 in the overshot 1 clamps the well water pump and then moves upwards, the hooking rod 7 can hook the cable or the steel wire rope hung on the well wall and take the cable or the steel wire rope out of the well.

The implementation principle of the geothermal well salvaging device provided by the embodiment of the application is as follows: before the overshot 1 is used, the mounting block 22 is moved to enable the abutting edge 221 of the mounting block 22 to abut against the limiting ring 12, the overshot 1 is lowered to the bottom of the well by using common drilling equipment through the hooking piece 3, and the overshot 1 is connected to external equipment through the connector 14. When the overshot 1 is transported above the object to be salvaged, the driving source 45 is started to drive the winding rod 42 to rotate an adjusting hook 3 to slide out of the overshot 1, so as to hook the cable or the steel wire rope; the winding rod 42 is then driven to rotate again to wind up the drive rope 41 so that the cable or wire rope waits for the overshot to move up with the hook 3, through the clamp assembly 2 and into the overshot 1. And when the well water pump is continued, the overshot 1 moves downwards, so that the overshot 1 is sleeved on the well water pump until the clamping assembly 2 clamps the well water pump under the combined action of the well water pump and the driving piece, and the overshot 1 can be transported out of the well.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a geothermal well fishing device which characterized in that: comprises an overshot (1), a clamping assembly (2) and a hoisting mechanism are arranged in the overshot (1);

the clamping assembly (2) is arranged in the overshot (1) in a sliding manner, the clamping assembly (2) comprises two clamping jaws (21) which are arranged oppositely, a driving piece for driving the two clamping jaws (21) to clamp an object to be salvaged is arranged in the overshot (1), and the lifting mechanism comprises a hook hanging piece (3) and a driving assembly (4) for driving the hook hanging piece (3) to move along the vertical direction;

the clamping assembly (2) further comprises a mounting block (22), and the mounting block (22) is connected in the overshot (1) in a sliding manner; the clamping jaw (21) is rotatably connected to one end of the mounting block (22), and the driving piece is used for driving the clamping jaw (21) to rotate;

the driving piece comprises driving blocks (11) which are in one-to-one correspondence with the clamping jaws (21), and the mounting block (22) is also provided with a first reset piece (24) which is used for driving the clamping jaws (21) to rotate in a direction away from the mounting block (22); a locking piece for locking the mounting block (22) is arranged in the overshot (1), and the locking piece is positioned at one side of the driving block (11) away from the clamping jaw (21); the locking piece comprises a locking block (5) which is arranged in the overshot (1) in a sliding manner, and the mounting block (22) is provided with a clamping groove (222) for clamping the locking block (5).

2. The geothermal well fishing apparatus of claim 1, wherein: the driving assembly (4) comprises a driving rope (41) and a winding rod (42) which is rotatably arranged in the overshot (1), one end of the driving rope (41) is fixed on the hook hanging piece (3), and the other end of the driving rope is fixed on the winding rod (42).

3. The geothermal well fishing apparatus of claim 2, wherein: the driving assembly (4) further comprises a first bevel gear (43) coaxially sleeved at one end of the winding rod (42), and a second bevel gear (44) is meshed with one side of the first bevel gear (43); one end of the second bevel gear (44) is coaxially fixed with a transmission connecting rod (441), and one end of the transmission connecting rod (441) is connected with a driving source (45) for driving the second bevel gear to rotate.

4. The geothermal well fishing apparatus of claim 1, wherein: the locking block (5) comprises a plug-in connection part (51) and a sliding rod (52), a second resetting piece (54) used for driving the locking block (5) to reset is sleeved on the sliding rod (52), and one end of the sliding rod (52) penetrates through the overshot (1) and is connected with an operation plate (53).

5. The geothermal well fishing apparatus of claim 1, wherein: the overshot is characterized in that a limiting ring (12) is coaxially fixed in the overshot (1), a mounting block (22) is slidably connected in the limiting ring (12), an abutting edge (221) for abutting against the limiting ring (12) is arranged at one end of the mounting block (22), and a damping sleeve (6) is sleeved at one end, close to the limiting ring (12), of the mounting block (22).

6. The geothermal well fishing apparatus of claim 1, wherein: the outer side wall of the overshot (1) is rotationally connected with a hooking rod (7), and the overshot (1) is provided with a containing groove (13) for containing the hooking rod (7).

7. The geothermal well fishing apparatus of claim 1, wherein: the hooking piece (3) comprises a wire hooking hook (31) and a magnetic attraction piece (32) which are fixedly connected.