CN114033328B - Logging probe pipe fisher - Google Patents
Logging probe pipe fisher Download PDFInfo
- Publication number
- CN114033328B CN114033328B CN202111430248.8A CN202111430248A CN114033328B CN 114033328 B CN114033328 B CN 114033328B CN 202111430248 A CN202111430248 A CN 202111430248A CN 114033328 B CN114033328 B CN 114033328B
- Authority
- CN
- China
- Prior art keywords
- pipe
- clamping
- outer sleeve
- driving
- rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000000523 sample Substances 0.000 title claims abstract description 38
- 210000000078 claw Anatomy 0.000 description 6
- 238000005553 drilling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
Abstract
The invention provides a logging probe pipe fisher which comprises a salvage pipe, a clamping device arranged at the bottom of the salvage pipe and an outer sleeve used for driving the clamping device to clamp; the clamping devices are arranged at the bottom of the salvaging pipe at equal intervals; the outer sleeve is arranged on the outer wall of the salvaging pipe in a vertical moving mode through the driving assembly, a driving piece used for driving the clamping devices to clamp is arranged at the bottom of the outer sleeve, and the clamping devices extend into the salvaging pipe respectively and are used for clamping the exploring pipe. According to the logging probe fisher, the outer sleeve is driven to move through the motor, the clamping device at the bottom of the salvaging pipe is controlled to clamp the probe, and the logging probe fisher is simple in operation, firm, durable, high in salvaging accuracy and free of damaging underground logging equipment.
Description
Technical Field
The invention belongs to the technical field of logging salvage, and particularly relates to a logging exploratory tube salvage device.
Background
Logging is an indispensable technical means in geological exploration, and the logging technology is divided into an uphole receiving device and a downhole instrument. Due to factors such as underground geological conditions, drilling process, drilling mud and the like, the conditions such as hole wall collapse, rock drop and the like in the logging process are caused, and downhole logging equipment is often blocked by the factors in the holes, so that instruments and equipment fall to the bottom of the well. Since the borehole needs to be drilled continuously, the radioactive source may be hung on the instrument equipment, and thus, the well logging probe which falls down in the normal case must be salvaged. The logging exploratory tube is heavy in weight, long in length, smooth in outer wall and difficult to salvage by a traditional method. And the different drill tool joint models are not completely identical, so that a unified fisher cannot be processed.
Therefore, it is important to quickly manufacture an fisher suitable for fishing a logging probe on site according to the model of the drilling tool.
Disclosure of Invention
In view of the above, the invention aims to provide a logging probe fisher, so as to solve the problem that different salvaging instruments are needed for the existing logging equipment of different types.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a logging probe fisher comprises a salvage pipe, a clamping device arranged at the bottom of the salvage pipe and an outer sleeve used for driving the clamping device to clamp;
the clamping devices are arranged at the bottom of the salvaging pipe at equal intervals;
the outer sleeve is arranged on the outer wall of the salvaging pipe in a vertical moving mode through the driving assembly, a driving piece used for driving the clamping devices to clamp is arranged at the bottom of the outer sleeve, and the clamping devices extend into the salvaging pipe respectively and are used for clamping the exploring pipe.
Further, each clamping device is consistent in structure, each clamping device comprises a rotating gear, clamping jaws are mounted on the rotating gears, a plurality of gear mounting grooves and clamping jaw placing grooves are formed in the bottoms of the salvage pipes at equal intervals, the gear mounting grooves are communicated with the clamping jaw placing grooves, the rotating gears are rotatably mounted in the gear mounting grooves, and the clamping jaws extend into the clamping jaw placing grooves.
Further, the clamped driving members are circumferentially equidistantly arranged around the bottom of the outer sleeve, each driving member corresponds to one rotating gear, the driving members are racks, and the racks are meshed with the rotating gears respectively.
Further, a plurality of balls are arranged on the side walls of the clamping jaws, and the balls are rotatably arranged on the clamping jaws.
Further, the moving assembly comprises a rotating head, an annular protruding block is arranged at the bottom of the rotating head, an annular groove corresponding to the annular protruding block is arranged at the top of the outer sleeve, the annular protruding block is rotatably arranged at the top of the outer sleeve, the rotating head is rotatably arranged at the top of the outer sleeve, external threads are arranged at the top of the salvage pipe, internal threads are arranged in the rotating head, and the rotating head is in threaded connection with the salvage pipe.
Further, the moving assembly further comprises a motor, the motor is arranged on the outer wall of the outer sleeve, a driving gear is arranged on a rotating shaft of the motor, teeth are arranged on the outer wall of the rotating head, and the driving gear is meshed with the rotating head.
Further, the bottom of the outer sleeve is provided with a limiting ring, and the inner diameter of the limiting ring corresponds to the outer diameter of the salvage pipe.
Compared with the prior art, the logging probe fisher has the following beneficial effects:
(1) According to the logging probe fisher, the outer sleeve is driven to move through the motor, the clamping device at the bottom of the salvaging pipe is controlled to clamp the probe, and the logging probe fisher is simple in operation, firm, durable, high in salvaging accuracy and free of damaging underground logging equipment.
(2) According to the logging exploratory tube fisher, the plurality of clamping devices plug the salvaging holes, so that the logging exploratory tube fisher can be suitable for salvaging exploratory tubes of different types.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a block diagram of a logging probe fisher according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a well logging probe fisher according to an embodiment of the present invention;
FIG. 3 is a second cross-sectional view of a logging probe latch jack according to an embodiment of the present invention.
Reference numerals illustrate:
1. an outer sleeve; 2. turning the head; 3. fishing the pipe; 4. a drive gear; 5. a motor; 6. a clamping device; 7. a probe tube; 11. a rack; 12. a limiting ring; 21. an annular bump; 31. a gear installation groove; 32. a jaw placement groove; 33. an external thread; 61. rotating the gear; 62. a clamping jaw; 63. and (3) rolling balls.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 3, a logging probe fisher comprises a salvage pipe 3, a clamping device 6 arranged at the bottom of the salvage pipe 3, and an outer sleeve 1 for driving the clamping device 6 to clamp;
the clamping devices 6 comprise a plurality of clamping devices 6, and the plurality of clamping devices 6 are equidistantly arranged at the bottom of the salvage pipe 3;
the outer sleeve 1 is arranged on the outer wall of the salvaging pipe 3 in a vertical moving mode through a driving assembly, a driving piece used for driving the clamping devices 6 to clamp is arranged at the bottom of the outer sleeve 1, and a plurality of clamping devices 6 extend into the salvaging pipe 3 respectively and are used for clamping the exploring pipe 7.
Each clamping device 6 has the same structure, each clamping device 6 comprises a rotating gear 61, clamping claws 62 are arranged on the rotating gears 61, a plurality of gear mounting grooves 31 and clamping claw 62 placing grooves 32 are formed in the bottom of the salvage pipe 3 at equal intervals, the gear mounting grooves 31 are communicated with the clamping claw 62 placing grooves 32, the rotating gears 61 are rotatably arranged in the gear mounting grooves 31, and the clamping claws 62 extend into the clamping claw 62 placing grooves 32.
A plurality of rotating gears 61 are rotatably arranged at the bottom of the salvage pipe 3, and clamping claws 62 of a plurality of clamping devices 6 extend inwards around the bottom of the salvage pipe 3 and are used for clamping the probe pipe 7;
as shown in fig. 1 to 3, the plurality of clamping devices 6 are equidistantly installed, each rotating gear 61 is rotatably installed in the gear installation groove 31 at the bottom of the salvage pipe 3, and the rotating gears 61 rotate to drive the clamping jaws 62 to respectively clamp the salvage pipe 3, and as the bottom of the probe pipe 7 is arc-shaped, after the probe pipe 7 enters the probe pipe, the bottom of the probe pipe 7 is clamped by the clamping jaws 62 to push upwards, so that the clamping of the probe pipe 7 is realized.
The clamped driving members are arranged around the bottom circumference of the outer sleeve 1 at equal distances, each driving member corresponds to one rotating gear 61, each driving member is a rack 11, and the racks 11 are meshed with the rotating gears 61.
As shown in fig. 1 to 3, racks 11 corresponding to the rotating gears 61 are equidistantly arranged at the bottom of the outer sleeve 1, the racks 11 are respectively meshed with the rotating gears 61, when the outer sleeve 1 moves downwards, the racks 11 are meshed with the rotating gears 61 to push the rotating gears 61 to rotate, and when the rotating gears 61 rotate, the clamping jaws 62 are driven to clamp into the salvage pipe 3 to push the probe pipe 7 to move upwards.
The side walls of the jaws 62 are provided with a plurality of balls which are rotatably mounted on the jaws 62.
As shown in fig. 1 to 3, the ball is mounted in a manner known in the art, such as a ball bearing, and will not be described in detail herein.
The function of the mounting ball is to reduce friction by rolling the ball into contact with the bottom of the probe tube 7 due to friction between the bottom of the probe tube 7 and the end face of the clamping jaw 62 when the clamping jaw 62 clamps upwards, which results in abrasion of the probe tube 7.
The moving assembly comprises a rotary head 2, an annular protruding block 21 is arranged at the bottom of the rotary head 2, an annular groove corresponding to the annular protruding block is arranged at the top of the outer sleeve 1, the annular protruding block 21 is rotatably arranged at the top of the outer sleeve 1, the rotary head 2 is rotatably arranged at the top of the outer sleeve 1, an external thread 33 is arranged at the top of a salvage pipe 3, an internal thread is arranged in the rotary head 2, and the rotary head 2 is in threaded connection with the salvage pipe 3.
The moving assembly further comprises a motor 5, the motor 5 is arranged on the outer wall of the outer sleeve 1, a driving gear 4 is arranged on the rotating shaft of the motor 5, teeth are arranged on the outer wall of the rotating head 2, and the driving gear 4 is meshed with the rotating head 2.
As shown in fig. 1 to 3, a driving gear 4 installed on a rotating shaft of a motor 5 is meshed with a rotating head 2, the rotating head 2 is in threaded connection with the outer wall of a salvage pipe 3, therefore, the rotating head 2 rotates to move up and down on the outer wall of the salvage pipe 3, the rotating head 2 drives an outer sleeve 1 to move up and down on the outer wall of the salvage pipe 3, a rack 11 is meshed with a rotating gear 61, and a clamping jaw 62 is controlled to perform clamping action.
The bottom of the outer sleeve 1 is provided with a limiting ring 12, the inner diameter of the limiting ring 12 corresponds to the outer diameter of the salvage pipe 3,
the limiting ring 12 has the function that when the rack 11 is meshed with the rotating gear 61, the outer sleeve 1 can be separated from the rotating gear 61 when being moved upwards excessively, and the limiting ring 12 is propped against the bottom of the rotating gear 61 to limit the rotating gear, so that the outer sleeve 1 is prevented from being separated from the rotating gear 61.
The specific structure is as follows:
when the fisher falls into the bottom of the wellhead, the probe 7 enters the salvaging pipe 3, the bottom of the salvaging pipe 3 is attached to the ground, the bottom of the probe 7 is parallel to the bottom of the salvaging pipe 3, the motor 5 is driven, the motor 5 drives the driving gear 4, the driving gear 4 is meshed with the rotary head 2, the rotary head 2 rotates to be in threaded connection with the inside of the salvaging pipe 3, the rotary head 2 moves downwards to drive the outer sleeve 1 to move downwards, when the outer sleeve 1 moves downwards, the rack 11 in the outer sleeve 1 moves downwards, the rack 11 is meshed with the rotating gear 61, the rotating gear 61 rotates to drive the clamping jaws 62 to clamp inwards the salvaging pipe 3, the end faces of the clamping jaws 62 push the bottom of the arc-shaped probe 7 to move upwards, the port balls of the clamping jaws 62 are attached to the bottom of the probe 7, the probe 7 is easier to move upwards under the rolling of the balls, the rotary head 2 is clamped in the salvaging pipe 3, the wellhead is taken out, the outer sleeve 1 is overturned through the driving motor 5, the clamping jaws 62 are opened, and the probe 7 is taken out.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (3)
1. The logging probe fisher is characterized by comprising a salvage pipe (3), a clamping device (6) arranged at the bottom of the salvage pipe (3), and an outer sleeve (1) used for driving the clamping device (6) to clamp;
the clamping devices (6) comprise a plurality of clamping devices (6), and the clamping devices (6) are equidistantly arranged at the bottom of the salvage pipe (3);
the outer sleeve (1) is arranged on the outer wall of the salvaging pipe (3) in a vertical moving way through the driving assembly, a driving piece for driving the clamping devices (6) to clamp is arranged at the bottom of the outer sleeve (1), and a plurality of clamping devices (6) respectively extend into the salvaging pipe (3) and are used for clamping the exploring pipe (7);
each clamping device (6) has a consistent structure, each clamping device (6) comprises a rotating gear (61), clamping jaws (62) are arranged on the rotating gears (61), a plurality of gear mounting grooves (31) and clamping jaw (62) placing grooves (32) are formed in the bottom of the fishing pipe (3) at equal intervals, the gear mounting grooves (31) are communicated with the clamping jaw (62) placing grooves (32), the rotating gears (61) are rotatably arranged in the gear mounting grooves (31), and the clamping jaws (62) extend into the clamping jaw (62) placing grooves (32);
wherein the clamped driving pieces are circumferentially equidistantly arranged around the bottom of the outer sleeve (1), each driving piece corresponds to one rotating gear (61), each driving piece is a rack (11), and the racks (11) are respectively meshed with the rotating gears (61);
wherein, a plurality of balls are arranged on the side wall of the clamping jaw (62), and the balls are rotatably arranged on the clamping jaw (62);
wherein, remove the subassembly and including turning round (2), turning round (2) bottom is equipped with annular lug (21), and outer sleeve (1) top is equipped with the annular groove corresponding with annular boss, and annular lug (21) rotate and install at outer sleeve (1) top, and turning round (2) rotate and install at outer sleeve (1) top, and salvage pipe (3) top is equipped with external screw thread (33), and turning round (2) inside is equipped with the internal screw thread, and turning round (2) and salvage pipe (3) threaded connection.
2. A logging probe latch as defined in claim 1, wherein: the moving assembly further comprises a motor (5), the motor (5) is arranged on the outer wall of the outer sleeve (1), a driving gear (4) is arranged on the rotating shaft of the motor (5), the outer wall of the rotating head (2) is provided with teeth, and the driving gear (4) is meshed with the rotating head (2).
3. A logging probe latch as defined in claim 1, wherein: the bottom of the outer sleeve (1) is provided with a limiting ring (12), and the inner diameter of the limiting ring (12) corresponds to the outer diameter of the salvaging pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111430248.8A CN114033328B (en) | 2021-11-29 | 2021-11-29 | Logging probe pipe fisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111430248.8A CN114033328B (en) | 2021-11-29 | 2021-11-29 | Logging probe pipe fisher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114033328A CN114033328A (en) | 2022-02-11 |
| CN114033328B true CN114033328B (en) | 2024-04-09 |
Family
ID=80139197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111430248.8A Active CN114033328B (en) | 2021-11-29 | 2021-11-29 | Logging probe pipe fisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114033328B (en) |
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|---|---|---|---|---|
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| CN114033328A (en) | 2022-02-11 |
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