CN115704278B - Underground rope fishing device - Google Patents
Underground rope fishing device Download PDFInfo
- Publication number
- CN115704278B CN115704278B CN202110923555.3A CN202110923555A CN115704278B CN 115704278 B CN115704278 B CN 115704278B CN 202110923555 A CN202110923555 A CN 202110923555A CN 115704278 B CN115704278 B CN 115704278B
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- rod
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- move
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- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 238000009434 installation Methods 0.000 claims description 19
- 238000005086 pumping Methods 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 13
- 239000003129 oil well Substances 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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Abstract
The invention provides an underground rope fishing device, which comprises: a mounting bar vertically disposed; the movable rod is arranged at the lower end of the mounting rod and can move transversely relative to the mounting rod; the lower end of the clamping rod is fixedly connected with the movable rod; the driving mechanism is connected with the movable rod and can drive the movable rod to move transversely so as to drive the clamping rod to be close to the mounting rod. The invention relieves the technical problem of lower efficiency of salvaging junk from the oil well.
Description
Technical Field
The invention relates to the technical field of petroleum exploitation, in particular to an underground rope fishing device.
Background
During the operation of the oil well, some objects often fall into the oil well, and the objects are usually slender and flexible objects such as steel wire ropes, logging steel wires and the like, and the objects easily cause the blockage of the oil well or damage equipment, thereby affecting the operation and oil exploitation.
In order to reduce the influence, the junk is required to be fished out of the oil well in time. However, when the rope type falling object is salvaged, the falling object is difficult to fix, and easily falls in the middle, and the reliability of the salvaging operation is low, so that the salvaging operation needs to be carefully performed on the way, and the salvaging efficiency is low.
Disclosure of Invention
The invention aims to provide an underground rope fishing device so as to solve the technical problem of low efficiency in fishing junk from an oil well.
The above object of the present invention can be achieved by the following technical solutions:
the invention provides an underground rope fishing device, which comprises:
a mounting bar vertically disposed;
The movable rod is arranged at the lower end of the mounting rod and can move transversely relative to the mounting rod;
The lower end of the clamping rod is fixedly connected with the movable rod;
The driving mechanism is connected with the movable rod and can drive the movable rod to move transversely so as to drive the clamping rod to be close to the mounting rod.
In a preferred embodiment, the driving mechanism comprises a first cylinder body, a first piston and an injection mechanism, wherein the first cylinder body is fixed at the lower end of the mounting rod, the first cylinder body is provided with a first piston cavity, the first piston is mounted on the first cylinder body, and the movable rod is fixedly connected with the first piston; the pumping and injecting mechanism is communicated with the first piston cavity and can pump and inject fluid in the first piston cavity so as to drive the first piston to move transversely.
In a preferred embodiment, the mounting rod is provided with a second piston chamber in communication with the first piston chamber; the pumping and injecting mechanism comprises a second piston and a moving mechanism, wherein the second piston is installed in the second piston cavity, and the moving mechanism is connected with the second piston and used for driving the second piston to move.
In a preferred embodiment, the moving mechanism comprises a threaded pipe, a threaded rod and a motor, wherein the threaded rod is connected to the mounting rod in a sliding manner, the threaded rod is in threaded connection with the threaded pipe, the motor is connected with the threaded pipe, and the motor is used for driving the threaded pipe to rotate so as to drive the threaded rod to move; the second piston is fixedly connected with the threaded rod.
In a preferred embodiment, the threaded rod drives the second piston to move vertically.
In a preferred embodiment, the mounting rod is provided with a vertically extending chute, and the threaded rod is connected with a slide rod which is slidingly connected to the chute.
In a preferred embodiment, the threaded rod is connected with the sliding rod through a supporting rod; the mounting rod is connected with a baffle, the baffle is arranged between the second piston and the supporting rod, and the threaded rod can move to the position where the supporting rod is abutted to the baffle, or the second piston is abutted to the baffle.
In a preferred embodiment, the mounting rod comprises a vertically distributed mounting tube and a driving rod, the mounting tube is fixedly connected to the upper end of the driving rod, and the second piston cavity is arranged on the driving rod; the installation rod is provided with a vertically extending installation cavity, and the threaded pipe and the motor are both installed in the installation cavity.
In a preferred embodiment, the downhole string device comprises two of the movable rods; the driving mechanism comprises two first pistons, and the two movable rods are fixedly connected to the first pistons in a one-to-one correspondence manner; the first cylinder bodies are arranged transversely, and the two first pistons are symmetrically arranged.
In a preferred embodiment, the outer wall of the clamping rod and the outer wall of the lower end of the mounting rod are both provided with barbs.
In a preferred embodiment, the downhole rope pulling device comprises a telescopic rod, the upper end of the mounting rod is mounted on the telescopic rod, and the telescopic rod can drive the mounting rod to move vertically.
The invention has the characteristics and advantages that:
In the underground rope fishing device, the clamping rod, the movable rod and the mounting rod can form a structure for hanging ropes. The underground rope fishing device is put into the well, the rope falling into the well can be hung on the movable rod, and the positions of the ropes can be limited by the clamping rods and the mounting rods. In the salvaging process, firstly, the driving mechanism drives the movable rod to transversely move, so that the clamping rod is far away from the mounting rod, an opening between the mounting rod and the clamping rod is enlarged, a rope can conveniently enter between the mounting rod and the clamping rod, and the rope is hung on the movable rod; then, actuating mechanism drive movable rod lateral shifting makes the clamp lever be close to the installation pole, reduces the opening between installation pole and the clamp lever, blocks that the rope from dropping on the movable rod, is favorable to the guarantee to salvage out smoothly with the rope, has improved the efficiency of salvaging.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a downhole rope pulling device provided by the invention;
FIG. 2 is an enlarged view of a portion at A in FIG. 1;
fig. 3 is a partial enlarged view at B in fig. 1.
Reference numerals illustrate:
10. a mounting rod; 101. installing a pipe; 1011. a mounting cavity; 102. a driving rod; 11. a second piston chamber;
21. a movable rod; 22. a clamping rod; 23. a barb;
30. A driving mechanism;
31. A first cylinder; 32. a first piston chamber; 33. a first piston;
40. a pumping and injecting mechanism; 41. a second piston;
50. a moving mechanism; 51. a threaded tube; 52. a threaded rod; 521. a fixing plate; 53. a motor; 54. an output shaft;
61. a chute; 62. a slide bar; 63. a support rod; 64. a baffle;
70. a telescopic rod; 71. a mounting plate; 72. and (5) connecting a plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides an underground rope fishing device, as shown in figure 1, which comprises: a mounting bar 10, a movable bar 21, a clamping bar 22, and a driving mechanism 30; the mounting bar 10 is arranged vertically; the movable rod 21 is mounted at the lower end of the mounting rod 10 and can move transversely relative to the mounting rod 10; the lower end of the clamping rod 22 is fixedly connected with the movable rod 21; the driving mechanism 30 is connected with the movable rod 21, and can drive the movable rod 21 to move transversely so as to drive the clamping rod 22 to approach the mounting rod 10.
In the underground rope fishing device, the clamping rod 22, the movable rod 21 and the mounting rod 10 can form a hanging rope structure. The underground rope pulling device is put into the well, the rope falling into the well can be hung on the movable rod 21, and the positions of the ropes can be limited by the clamping rods 22 and the mounting rods 10. In the salvaging process, firstly, the driving mechanism 30 drives the movable rod 21 to transversely move, so that the clamping rod 22 is far away from the mounting rod 10, an opening between the mounting rod 10 and the clamping rod 22 is enlarged, and a rope can conveniently enter between the mounting rod 10 and the clamping rod 22 and is suspended on the movable rod 21; then, the driving mechanism 30 drives the movable rod 21 to move transversely, so that the clamping rod 22 is close to the mounting rod 10, an opening between the mounting rod 10 and the clamping rod 22 is reduced, the rope is prevented from falling from the movable rod 21, smooth salvaging of the rope is guaranteed, and salvaging efficiency is improved.
The form of the drive mechanism 30 is not limited to one, for example: the driving mechanism 30 includes a hydraulic cylinder connected to the movable rod 21, and is mounted to the mounting rod 10 to drive the movable rod 21 to move laterally. In one embodiment of the present invention, the driving mechanism 30 includes a first cylinder 31, a first piston 33 and a pumping and injecting mechanism 40, the first cylinder 31 is fixed at the lower end of the mounting rod 10, the first cylinder 31 is provided with a first piston cavity 32, the first piston 33 is mounted on the first cylinder 31, and the movable rod 21 is fixedly connected to the first piston 33; the pumping and injecting mechanism 40 is in communication with the first piston chamber 32, and the pumping and injecting mechanism 40 is capable of pumping and injecting fluid in the first piston chamber 32 to drive the first piston 33 to move in the lateral direction. The pumping mechanism 40 pumps the fluid in the first piston chamber 32 to change the pressure in the first piston chamber 32, thereby moving the first piston 33. Specifically, when the fluid in the first piston chamber 32 is pumped out by the pumping mechanism 40, the air pressure in the first piston chamber 32 is reduced, and the first piston 33 moves into the first piston chamber 32; when the pumping mechanism 40 injects fluid into the first piston chamber 32, the air pressure in the first piston chamber 32 increases, and the first piston 33 is driven to move outwards. As shown in fig. 1 and 2, the first cylinder 31 is disposed in a lateral direction, and the first piston 33 is movable in the lateral direction on the first cylinder 31.
Further, the downhole string pulling device comprises two movable rods 21; the driving mechanism 30 comprises two first pistons 33, and the two movable rods 21 are fixedly connected to the first pistons 33 in a one-to-one correspondence manner; the first cylinder 31 is disposed in the lateral direction, and the pumping and injecting mechanism 40 communicates with the piston chamber space between the two first pistons 33. As shown in fig. 1 and 2, two first pistons 33 are respectively located at two ends of the first piston chamber 32, and when the pumping and injecting mechanism 40 pumps out the fluid in the first piston chamber 32, the two first pistons 33 can synchronously move into the first piston chamber 32; when the pumping and injecting mechanism 40 injects fluid into the first piston cavity 32, the two first pistons 33 can synchronously move outwards, so that the two first pistons 33 can synchronously move, but the structure is simplified, and the operation is convenient. Preferably, the two first pistons 33 are symmetrically arranged.
In some embodiments, the pump mechanism 40 may employ a hydraulic pump.
In another embodiment, the mounting rod 10 is provided with a second piston chamber 11 communicating with the first piston chamber 32; the pumping and injecting mechanism 40 comprises a second piston 41 and a moving mechanism 50, wherein the second piston 41 is installed in the second piston cavity 11, and the moving mechanism 50 is connected with the second piston 41 and is used for driving the second piston 41 to move. The second piston 41 partitions the second piston chamber 11, when the second piston 41 moves, the volume of the space on the side of the second piston chamber 11 communicating with the first piston chamber 32 changes, and when the volume of the space decreases, the fluid in the second piston chamber 11 flows to the first piston chamber 32, thereby injecting the fluid into the first piston chamber 32; when the volume of the space increases, the fluid in the first piston chamber 32 flows to the second piston chamber 11, and the fluid in the first piston chamber 32 is drawn out.
The threaded rod 52 moves the second piston 41, changing the volume of the space on the side of the second piston chamber 11 that communicates with the first piston chamber 32. The movement mode of the threaded rod 52 and the second piston 41 is not limited to one type, and preferably, the threaded rod 52 drives the second piston 41 to move vertically, so that the structure of the underground rope fishing device is more compact due to the fact that the threaded rod 52 is convenient to adapt to the structure of the mounting rod 10. As shown in fig. 2, the first cylinder 31 is disposed below the second piston chamber 11, and when the second piston 41 moves downward, the first piston 33 is driven to move outward; the second piston 41, when moved upward, urges the first piston 33 to move inward.
The structural form of the moving mechanism 50 is not limited to one, and for example, the moving mechanism 50 may be a hydraulic cylinder, and the second piston 41 may be fixed to a piston rod of the hydraulic cylinder. In one embodiment of the present invention, the moving mechanism 50 includes a threaded tube 51, a threaded rod 52 and a motor 53, the threaded rod 52 is slidably connected to the mounting rod 10, as shown in fig. 3, the threaded rod 52 is in threaded connection with the threaded tube 51, the motor 53 is connected with the threaded tube 51, and the motor 53 is used for driving the threaded tube 51 to rotate so as to drive the threaded rod 52 to move; the second piston 41 is fixedly connected to the threaded rod 52. Since the threaded rod 52 is slidably connected to the mounting rod 10, the threaded rod 52 can move on the mounting rod 10, but is limited to rotate, so that when the motor 53 drives the threaded tube 51 to rotate, the rotational motion can be converted into movement of the threaded rod 52, and the threaded rod 52 can be driven to move vertically. As shown in fig. 1 and 2, the threaded tube 51 is fixedly connected to an output shaft 54 of the motor 53; the lower end of the threaded rod 52 is fixedly connected with a fixed plate 521, and the second piston 41 is fixedly connected with the fixed plate 521.
As shown in fig. 2, the mounting rod 10 is provided with a vertically extending sliding groove 61, the threaded rod 52 is connected with a sliding rod 62, the sliding rod 62 is slidably connected to the sliding groove 61 to limit the threaded rod 52 to rotate and guide the threaded rod 52 to move vertically, so that the threaded rod 52 is slidably connected to the mounting rod 10.
Further, the threaded rod 52 is connected with the sliding rod 62 through a supporting rod 63; the mounting rod 10 is connected with a baffle plate 64, the baffle plate 64 is arranged between the second piston 41 and the supporting rod 63, as shown in fig. 2, the threaded rod 52 can move until the supporting rod 63 is in contact with the baffle plate 64, or the second piston 41 is in contact with the baffle plate 64, so that the stroke of the second piston 41 moving vertically is limited, and the pressure in the first piston cavity 32 is ensured to change within a set range. As shown in fig. 2, the second piston 41 is attached to the threaded rod 52 by a fixing plate 521, and the second piston 41 can be abutted against the baffle plate 64 by the fixing plate 521.
As shown in fig. 1, the installation rod 10 comprises an installation tube 101 and a driving rod 102 which are vertically distributed, the installation tube 101 is fixedly connected to the upper end of the driving rod 102, and the second piston cavity 11 is arranged on the driving rod 102; the installation pole 10 is equipped with the installation chamber 1011 of vertical extension, and screwed pipe 51 and motor 53 are all installed in the installation chamber 1011, can protect motor 53, reduce motor 53 and receive the interference in the pit to make the structure of this rope device of fishing in pit compacter.
As shown in fig. 1, the clamping rod 22 is obliquely arranged, and the clamping rod 22 is obliquely arranged from bottom to top to inside, so that the size of an opening between the upper end of the clamping rod 22 and the mounting rod 10 can be further reduced, and when the movable rod 21 moves inwards for a sufficient distance, the upper end of the clamping rod 22 can be contacted with the side wall of the mounting rod 10, thereby closing the opening and preventing the rope from falling. The outer wall of the clamping rod 22 and the outer wall of the lower end of the mounting rod 10 are both provided with barbs 23, and the barbs 23 are beneficial to preventing ropes from being separated from the space between the clamping rod 22 and the mounting rod 10, so that the risk of midway falling of the ropes is reduced.
In an embodiment of the present invention, the first piston chamber 32 and the second piston chamber 11 may be pneumatic piston chambers, and the fluid contained therein is gas and is controlled by the pneumatic pressure.
In one embodiment of the present invention, the downhole string pulling device includes a telescopic rod 70, the upper end of the installation rod 10 is installed on the telescopic rod 70, and the telescopic rod 70 can drive the installation rod 10 to move vertically. The fishing distance is adjusted by adjusting the length of the telescoping rod 70. Specifically, the telescopic rod 70 may be a hydraulic cylinder or a pneumatic cylinder, and may also be a telescopic structure driven by the motor 53. As shown in fig. 1, a connecting plate 72 is connected to the lower end of the telescopic rod 70, and the upper end of the mounting rod 10 is fixedly connected to the connecting plate 72; the upper end of the telescopic rod 70 is connected with a mounting plate 71 to facilitate the mounting of the downhole string device to external equipment by means of the mounting plate 71, for example, the downhole string device may be fixed to the lower end of the drilling string by means of the mounting plate 71.
The foregoing is merely a few embodiments of the present invention and those skilled in the art may make various modifications or alterations to the embodiments of the present invention in light of the disclosure herein without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a rope device drags for in pit which characterized in that includes:
a mounting bar vertically disposed;
The movable rod is arranged at the lower end of the mounting rod and can move transversely relative to the mounting rod;
The lower end of the clamping rod is fixedly connected with the movable rod;
The driving mechanism is connected with the movable rod and can drive the movable rod to move along the transverse direction so as to drive the clamping rod to be close to the mounting rod;
the driving mechanism comprises a first cylinder body, a first piston and a pumping and injecting mechanism, wherein the first cylinder body is fixed at the lower end of the mounting rod, a first piston cavity is formed in the first cylinder body, the first piston is mounted on the first cylinder body, and the movable rod is fixedly connected with the first piston;
the pumping and injecting mechanism is communicated with the first piston cavity and can pump and inject fluid in the first piston cavity so as to drive the first piston to move transversely;
The mounting rod is provided with a second piston cavity communicated with the first piston cavity;
the pumping and injecting mechanism comprises a second piston and a moving mechanism, the second piston is arranged in the second piston cavity, and the moving mechanism is connected with the second piston and used for driving the second piston to move;
The moving mechanism comprises a threaded pipe, a threaded rod and a motor, wherein the threaded rod is connected with the mounting rod in a sliding manner, the threaded rod is connected with the threaded pipe in a threaded manner, the motor is connected with the threaded pipe, and the motor is used for driving the threaded pipe to rotate so as to drive the threaded rod to move; the second piston is fixedly connected with the threaded rod.
2. The downhole string assembly of claim 1, wherein the threaded rod drives the second piston to move vertically.
3. The downhole string device according to claim 2, wherein the mounting rod is provided with a vertically extending chute, the threaded rod being connected with a slide rod, the slide rod being slidingly connected to the chute.
4. A downhole string device according to claim 3, wherein the threaded rod is connected to the slide rod by a strut;
The mounting rod is connected with a baffle, the baffle is arranged between the second piston and the supporting rod, and the threaded rod can move to the position where the supporting rod is abutted to the baffle, or the second piston is abutted to the baffle.
5. The underground rope fishing device according to claim 1, wherein the installation rod comprises an installation pipe and a driving rod which are vertically distributed, the installation pipe is fixedly connected to the upper end of the driving rod, and the second piston cavity is arranged on the driving rod; the installation rod is provided with a vertically extending installation cavity, and the threaded pipe and the motor are both installed in the installation cavity.
6. The downhole string device of claim 1, wherein the downhole string device comprises two of the movable rods; the driving mechanism comprises two first pistons, and the two movable rods are fixedly connected to the first pistons in a one-to-one correspondence manner; the first cylinder bodies are arranged transversely, and the two first pistons are symmetrically arranged.
7. The downhole string retrieval device according to claim 1, wherein the outer wall of the clamping bar and the outer wall of the lower end of the mounting bar are provided with barbs.
8. The downhole string retrieval device of claim 1, wherein the downhole string retrieval device comprises a telescoping rod, the upper end of the mounting rod being mounted to the telescoping rod, the telescoping rod being capable of driving the mounting rod to move vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110923555.3A CN115704278B (en) | 2021-08-12 | 2021-08-12 | Underground rope fishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110923555.3A CN115704278B (en) | 2021-08-12 | 2021-08-12 | Underground rope fishing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115704278A CN115704278A (en) | 2023-02-17 |
| CN115704278B true CN115704278B (en) | 2024-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110923555.3A Active CN115704278B (en) | 2021-08-12 | 2021-08-12 | Underground rope fishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115704278B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209799916U (en) * | 2019-01-23 | 2019-12-17 | 东营市冠诚石油技术有限公司 | Oil field is fishing device in pit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228507A (en) * | 1991-08-23 | 1993-07-20 | Marcel Obrejanu | Wireline hydraulic retrieving tool |
| CN107152255A (en) * | 2017-06-30 | 2017-09-12 | 四川达灿石油设备有限公司 | The pneumatic oil well of drawing and pulling type salvages structure |
| CN209838359U (en) * | 2019-02-19 | 2019-12-24 | 寇卫元 | Oil field is a fishing barrel in pit |
| CN209780821U (en) * | 2019-04-22 | 2019-12-13 | 中国海洋石油集团有限公司 | rope fishing device with hook teeth |
| CN210564441U (en) * | 2019-07-31 | 2020-05-19 | 延安双丰石油技术股份有限公司 | Underground fisher |
| CN210460562U (en) * | 2019-08-01 | 2020-05-05 | 莫张裔 | Structure is salvaged in oil well pit |
| CN211573456U (en) * | 2019-11-20 | 2020-09-25 | 天津百安科技有限公司 | Column type magnet for underground fishing |
| CN112780209B (en) * | 2021-01-06 | 2022-09-02 | 大庆市奈固石油机械设备制造有限公司 | Magnetic fishing device for fishing small-falling objects in petroleum well |
-
2021
- 2021-08-12 CN CN202110923555.3A patent/CN115704278B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209799916U (en) * | 2019-01-23 | 2019-12-17 | 东营市冠诚石油技术有限公司 | Oil field is fishing device in pit |
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| CN115704278A (en) | 2023-02-17 |
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