CN113294111B - Fishing equipment for oilfield downhole operation and working method thereof - Google Patents
Fishing equipment for oilfield downhole operation and working method thereof Download PDFInfo
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- CN113294111B CN113294111B CN202110847231.6A CN202110847231A CN113294111B CN 113294111 B CN113294111 B CN 113294111B CN 202110847231 A CN202110847231 A CN 202110847231A CN 113294111 B CN113294111 B CN 113294111B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 229910052755 nonmetal Inorganic materials 0.000 claims description 19
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 239000002184 metal Substances 0.000 description 11
- 238000009434 installation Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 230000002337 anti-port Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B31/06—Fishing for or freeing objects in boreholes or wells using magnetic means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of oilfield downhole operation, and discloses fishing equipment for oilfield downhole operation and a working method thereof. The guide wheels in the oilfield wells with different diameters can be in contact with the inner wall of the salvage well, so that the lifting process of the whole salvage device in the oilfield well is more stable, the position of the salvage mechanism can be adjusted through the rotation of the inner barrel according to the position of a salvage in the oilfield well through the matching arrangement of the mutual rotation between the outer barrel and the inner barrel, the salvage mechanism is moved to the position right above the position of the salvage, and the position adjustment of the salvage mechanism is more accurate.
Description
Technical Field
The invention relates to the technical field of oilfield downhole operation, in particular to salvage equipment for oilfield downhole operation and a working method thereof.
Background
Oil and natural gas are buried in oil and gas layers of dozens of meters to thousands of meters underground, an oil and gas channel needs to be established between the ground and the underground oil and gas layers when the oil and gas are exploited, the channel is an oil field well, in the process of underground operation of the oil field, blanking often falls into the well, for example, metal objects and nonmetal objects exist, after the blanking falls into the well bottom, abrasion or drilling blockage can be caused to a drill rod and a drill bit, so that the drill rod and the drill bit are damaged, and the blanking can be generally salvaged by a specific salvage device due to the size limitation of the well mouth. The existing salvage equipment is not high in salvage precision, meanwhile, the lifting process in an oil field well is unstable, salvage cannot be stored, oil on the surface of the salvaged object is difficult to filter out, and oil waste after salvage is caused.
Disclosure of Invention
The invention aims to provide salvage equipment for oilfield downhole operation and a working method thereof, and solves the following technical problems: (1) the technical problems that fishing equipment for oilfield downhole operation in the prior art is low in fishing precision and unstable in the lifting process in an oilfield well are solved; (2) the technical problem that salvage equipment for oilfield underground operation in the prior art cannot store salvage objects is solved; (3) the technical problem of salvage oil waste after coming is solved because the oil on the surface of the salvage object after being salvaged by the salvage equipment for the oil field underground operation in the prior art is difficult to filter out.
The purpose of the invention can be realized by the following technical scheme:
a salvage equipment for oil field borehole operation, including outer support body, install a plurality of connection shells on the outer support body, install stabilizing mean in the connection shell, connection shell one side fixed mounting has a connection board, and fixed mounting has outer barrel between a plurality of connection boards, barrel in the outer barrel internal rotation is installed, the internal salvage mechanism that installs of inner barrel, collection mechanism is installed to barrel one side bottom in.
Further, one side, away from the connection plate, of the connection shell is in an opening shape, the stabilizing mechanism comprises two top wall cylinders, a top wall plate is installed at the end part of a piston rod of each top wall cylinder, an adjusting cylinder is arranged between the two top wall cylinders, a first connecting block is installed at the end part of the piston rod of each adjusting cylinder, two connecting strips are installed on the first connecting block, and a plurality of guide wheels are installed between the two connecting strips in a rotating mode.
Furthermore, two telescopic rods are arranged on two sides of the adjusting cylinder, a second connecting block is fixedly mounted on each telescopic rod, and the second connecting block is fixedly connected with the two connecting strips.
Further, outer barrel bottom is the opening form, the internal fixed mounting of urceolus has two ring rail, rotate on the ring rail and install solid fixed ring, two solid fixed ring equal fixed mounting in interior barrel outer wall, the lifting rope is installed to outer barrel outer wall top intermediate position.
Further, outer barrel inner wall fixed mounting has the rotating electrical machines, the gear is installed to rotating electrical machines output shaft tip, interior barrel outer wall fixed mounting has the ring gear, gear and ring gear intermeshing, the ring gear sets up between two solid fixed rings.
Further, interior barrel bottom is the opening form, salvage the mechanism and include first lead screw, first lead screw threaded connection side moves the seat, interior barrel outer wall fixed mounting has the installation motor, the first lead screw of installation motor output shaft, side move seat bottom fixed mounting has salvage cylinder, salvage cylinder piston rod tip and install revolving cylinder, revolving cylinder output shaft circular shell, two second lead screws are installed to the circular shell internal rotation, and just mutually perpendicular sets up about two second lead screws are, second lead screw both ends flank is the symmetry along the middle part and sets up, two regulation seats of second lead screw both ends threaded connection, it has the trombone slide to adjust seat bottom fixed mounting, install a plurality of couples on the trombone slide, circular shell bottom central point fixed mounting has the electro-magnet.
Furthermore, two adjusting motors are fixedly mounted on the outer wall of the circular shell, the two adjusting motors correspond to the two second lead screws one to one, and output shafts of the adjusting motors are connected with the second lead screws.
Further, collect the mechanism including collecting the net, it has the fixed pin to collect net outer wall fixed mounting, rotate on the fixed pin and install the rotary rod, the rotary rod is kept away from fixed pin one end and is rotated and connect the right angle piece, right angle piece fixed connection fixed motor output shaft, fixed motor fixed mounting is in interior barrel inner wall.
The invention also discloses a working method of the fishing equipment for the oil field downhole operation, which comprises the following steps:
the method comprises the following steps: the outer frame body is placed into an oil field well through a lifting rope, an adjusting cylinder is started, a piston rod of the adjusting cylinder pushes a first connecting block, the first connecting block drives two connecting strips to move horizontally, the two connecting strips drive a plurality of guide wheels to move horizontally, the guide wheels are contacted with the inner wall of the oil field well, the guide wheels rotate along the inner wall of the oil field well in the descending process of the outer frame body, when the outer frame body descends to a salvage position, an output shaft of a rotating motor drives a gear to rotate, the gear drives a toothed ring to rotate, the toothed ring drives an inner barrel body to rotate, and the inner barrel body drives a circular shell to rotate to the position above a salvage object;
step two: when a metal object is salvaged, a salvage cylinder is started, a salvage cylinder piston rod drives a circular shell to descend, an electromagnet adsorbs the metal object, when a nonmetal object is salvaged, the salvage cylinder piston rod drives the circular shell to descend, a rotary cylinder output shaft drives the circular shell to rotate, then four pull pipes descend to the side edges of the salvage object, an adjusting motor output shaft drives a second lead screw to rotate, the second lead screw drives two adjusting seats to move oppositely, further two pull pipes to move oppositely, hooks on the four pull pipes limit the nonmetal object, then the salvage cylinder piston rod retracts to drive the circular shell to ascend, further the metal object or the nonmetal object ascends into an inner cylinder body, a motor output shaft is installed to drive a first lead screw to rotate, the first lead screw drives a side shifting seat to move horizontally, and further the metal object or the nonmetal object is driven to move to the upper part of a collecting net;
step three: the electro-magnet cancellation is to the absorption of metallics, the metallics falls into and collects the net, the adjusting motor output shaft drives second lead screw antiport, and then four trombone slide antiport, non-metallics between four trombone slides fall into and collect the net in, open fixed motor, fixed motor output shaft drives the right angle piece and rotates, the right angle piece drives the rotary rod and rotates, the net shake is collected in the pulling of rotary rod cooperation fixed pin, the oiliness on metallics and non-metallics surface flows from collecting the net surface.
The invention has the beneficial effects that:
(1) through the design of a plurality of guide wheels capable of adjusting horizontal positions in the stabilizing mechanism, the guide wheels of the whole fishing equipment in oil field wells with different diameters can be in contact with the inner wall of the fishing well, the lifting process of the whole fishing equipment in the oil field wells is ensured to be more stable, the position of the fishing mechanism can be adjusted through the rotation of the inner barrel according to the position of a fishing object in the oil field wells through the matched arrangement of the mutual rotation between the outer barrel and the inner barrel, the fishing mechanism is moved right above the position of the fishing object, the position adjustment of the fishing mechanism is more accurate, the fishing with higher precision can be met, and the adjustment efficiency of the fishing is high;
(2) through the design of the salvage cylinder with the adjustable position in the salvage mechanism, nonmetal objects and metal objects to be salvaged are placed in the collection mechanism to be collected, so that the whole salvage equipment can be repeatedly salvaged under an oil field well for multiple times, the salvage equipment can be guaranteed to salvage more salvaged objects at one time, the salvage efficiency of the whole salvage equipment is guaranteed, through the design of four pull pipes with adjustable intervals, the nonmetal objects with different sizes can be salvaged, the salvage success rate is guaranteed, meanwhile, through the design of the rotary cylinder, the positions of the four pull pipes relative to the salvaged objects can be conveniently adjusted, and the pull pipes can be conveniently inserted into gaps between the salvaged objects and the oil field well;
(3) through collecting the setting of net on the mechanism, can make things convenient for filtering out of the surperficial oil of salvage, set up through the cooperation of corresponding fixed pin, rotary rod, right angle piece and fixed motor simultaneously, can drive and collect the net and vibrate repeatedly, filter out of the surperficial oil of salvage with higher speed.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a fishing apparatus of the present invention for use in oilfield downhole operations;
FIG. 2 is a top view of the present invention;
FIG. 3 is an internal structural view of the outer cylinder of the present invention;
FIG. 4 is a schematic structural view of the inner barrel of the present invention;
FIG. 5 is an internal structural view of the inner cylinder of the present invention;
FIG. 6 is a schematic structural view of the fishing mechanism of the present invention;
FIG. 7 is an installation view of the pull tube of the present invention;
FIG. 8 is an internal structural view of the circular housing of the present invention;
FIG. 9 is a schematic view of the structure of the collection mechanism of the present invention;
fig. 10 is an installation view of the stabilizing mechanism of the present invention.
In the figure: 100. an outer frame body; 101. a connecting shell; 102. a connector tile; 200. a stabilizing mechanism; 201. a top wall cylinder; 202. a top wall panel; 203. an adjusting cylinder; 204. a first connection block; 205. a connecting strip; 206. a guide wheel; 207. a telescopic rod; 208. a second connecting block; 300. an outer cylinder; 301. an inner cylinder; 302. a rotating electric machine; 303. a gear; 304. a toothed ring; 305. a fixing ring; 306. an annular guide rail; 400. a salvaging mechanism; 401. a first lead screw; 402. installing a motor; 403. a lateral moving seat; 404. salvaging the cylinder; 405. a rotating cylinder; 406. a circular shell; 407. adjusting the motor; 408. a second lead screw; 409. an adjusting seat; 410. pulling the tube; 411. an electromagnet; 500. a collection mechanism; 501. collecting a net; 502. a fixing pin; 503. rotating the rod; 504. a right-angle block; 505. and fixing the motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 10, the fishing equipment for oilfield downhole operation according to the present invention includes an outer frame 100, a plurality of connecting shells 101 are mounted on the outer frame 100, a stabilizing mechanism 200 is mounted in the connecting shells 101, connecting plates 102 are fixedly mounted on one side of the connecting shells 101, an outer cylinder 300 is fixedly mounted between the connecting plates 102, an inner cylinder 301 is rotatably mounted in the outer cylinder 300, a fishing mechanism 400 is mounted in the inner cylinder 301, and a collecting mechanism 500 is mounted at the bottom of one side of the inner cylinder 301.
Specifically, one side of the connecting shell 101, which is far away from the connecting plate 102, is in an open shape, the stabilizing mechanism 200 comprises two top wall cylinders 201, a top wall plate 202 is installed at the end portion of a piston rod of each top wall cylinder 201, an adjusting cylinder 203 is arranged between the two top wall cylinders 201, a first connecting block 204 is installed at the end portion of a piston rod of each adjusting cylinder 203, two connecting strips 205 are installed on the first connecting block 204, a plurality of guide wheels 206 are installed between the two connecting strips 205 in a rotating mode, two telescopic rods 207 are arranged on two sides of each adjusting cylinder 203, a second connecting block 208 is fixedly installed on each telescopic rod 207, and the second connecting block 208 is fixedly connected with the two connecting strips 205. Through the design of the plurality of guide wheels 206 with adjustable horizontal positions in the stabilizing mechanism 200, the guide wheels 206 of the whole fishing equipment in the oilfield wells with different diameters can be in contact with the inner wall of the fishing well, and the lifting process of the whole fishing equipment in the oilfield wells is guaranteed to be more stable.
The bottom of the inner cylinder body 301 is in an open shape, the fishing mechanism 400 comprises a first lead screw 401, the first lead screw 401 is in threaded connection with a side shifting seat 403, an installation motor 402 is fixedly installed on the outer wall of the inner cylinder body 301, the installation motor 402 is connected with the first lead screw 401 in an output shaft mode, a fishing cylinder 404 is fixedly installed at the bottom of the side shifting seat 403, a rotary cylinder 405 is installed at the end portion of a piston rod of the fishing cylinder 404, the rotary cylinder 405 is connected with a circular shell 406 in an output shaft mode, two second lead screws 408 are installed in the circular shell 406 in a rotating mode, the two second lead screws 408 are vertically and vertically arranged, thread faces at two ends of the second lead screws 408 are symmetrically arranged along the middle portion, two adjusting seats 409 are in threaded connection with two ends of the second lead screws 408, a pull pipe 410 is fixedly installed at the bottom of the adjusting seats 409, a plurality of hooks are installed on the pull pipe 410, and an electromagnet 411 is fixedly installed at the center position of the bottom of the circular shell 406. Two adjusting motors 407 are fixedly mounted on the outer wall of the circular shell 406, the two adjusting motors 407 correspond to the two second lead screws 408 one by one, and output shafts of the adjusting motors 407 are connected with the second lead screws 408. Through the design of adjustable position's salvage cylinder 404 among the salvage mechanism 400, nonmetal thing and the metal thing that will salvage are put into and are collected in collection mechanism 500, make whole salvage equipment can carry out salvage thing collection many times in the oil field underground repeatedly, guarantee that salvage equipment can salvage more salvages once only, guarantee whole salvage equipment's salvage efficiency, through the design of four trombone slide 410 of adjustable interval, satisfy and salvage the nonmetal thing of equidimension not, guarantee the success rate of salvage, simultaneously through the design of revolving cylinder 405, can conveniently adjust the position of four trombone slide 410 for the salvage thing, make things convenient for trombone slide 410 to insert the gap of salvage thing and oil field well.
Referring to fig. 1 to 10, the fishing equipment for oilfield downhole operation according to the present embodiment works as follows:
the method comprises the following steps: the outer frame body 100 is placed into an oilfield well through a lifting rope, the adjusting cylinder 203 is started, a piston rod of the adjusting cylinder 203 pushes the first connecting block 204, the first connecting block 204 drives the two connecting strips 205 to move horizontally, the two connecting strips 205 drive the guide wheels 206 to move horizontally, the guide wheels 206 are in contact with the inner wall of the oilfield well, the guide wheels 206 rotate along the inner wall of the oilfield well in the descending process of the outer frame body 100, when the outer frame body 100 descends to a salvage position, an output shaft of the rotating motor 302 drives the gear 303 to rotate, the gear 303 drives the toothed ring 304 to rotate, the toothed ring 304 drives the inner cylinder body 301 to rotate, and the inner cylinder body 301 drives the circular shell 406 to rotate to the position above a salvaged object;
step two: when a metal object is salvaged, the salvaging cylinder 404 is opened, the piston rod of the salvaging cylinder 404 drives the circular shell 406 to descend, the electromagnet 411 adsorbs the metal object, when the nonmetal object is salvaged, the piston rod of the salvaging cylinder 404 drives the circular shell 406 to descend, the output shaft of the rotary cylinder 405 drives the circular shell 406 to rotate, then the four pull pipes 410 descend to the side edge of the salvaged object, the output shaft of the adjusting motor 407 drives the second lead screw 408 to rotate, the second lead screw 408 drives the two adjusting seats 409 to move oppositely, then the two pull pipes 410 are driven to move oppositely, the hooks on the four pull pipes 410 limit the nonmetal object, then the piston rod of the salvaging cylinder 404 retracts and drives the circular shell 406 to ascend, then the metal object or the nonmetal object ascends into the inner cylinder body 301, the output shaft of the mounting motor 402 drives the first lead screw 401 to rotate, the first lead screw 401 drives the lateral moving base 403 to move horizontally, and further drives the metal or nonmetal to move above the collecting net 501;
step three: the electro-magnet 411 cancels the absorption to the metallics, the metallics falls into and collects in net 501, adjusting motor 407 output shaft drives second lead screw 408 antiport, and then four trombone slide 410 antiport, the non-metallics between four trombone slide 410 fall into and collect in net 501, open fixed motor 505, fixed motor 505 output shaft drives right angle piece 504 and rotates, right angle piece 504 drives rotary rod 503 and rotates, rotary rod 503 cooperates fixed pin 502 to stimulate and collects net 501 shake, the oiliness on metallics and non-metallics surface flows out from collecting net 501 surface.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (5)
1. The fishing equipment for the oil field downhole operation comprises an outer frame body (100) and is characterized in that a plurality of connecting shells (101) are mounted on the outer frame body (100), stabilizing mechanisms (200) are mounted in the connecting shells (101), connecting plates (102) are fixedly mounted on one sides of the connecting shells (101), outer cylinder bodies (300) are fixedly mounted between the connecting plates (102), inner cylinder bodies (301) are rotatably mounted in the outer cylinder bodies (300), fishing mechanisms (400) are mounted in the inner cylinder bodies (301), and collecting mechanisms (500) are mounted at the bottoms of one sides of the inner cylinder bodies (301);
the bottom of the inner cylinder body (301) is in an open shape, the fishing mechanism (400) comprises a first lead screw (401), the first lead screw (401) is in threaded connection with a side shifting seat (403), the side shifting seat (403) is fixedly provided with a fishing cylinder (404), the end part of a piston rod of the fishing cylinder (404) is provided with a rotary cylinder (405), an output shaft of the rotary cylinder (405) is connected with a circular shell (406), two second lead screws (408) are rotatably arranged in the circular shell (406), thread faces at two ends of each second lead screw (408) are symmetrically arranged along the middle part, two adjusting seats (409) are in threaded connection with two ends of each second lead screw (408), the bottom of each adjusting seat (409) is fixedly provided with a pull pipe (410), the pull pipe (410) is provided with a plurality of hooks, the collecting mechanism (500) comprises a collecting net (501), and a fixing pin (502) is fixedly arranged on the outer wall of the collecting net (501), a rotating rod (503) is rotatably mounted on the fixing pin (502), one end, far away from the fixing pin (502), of the rotating rod (503) is rotatably connected with a right-angle block (504), the right-angle block (504) is fixedly connected with an output shaft of a fixing motor (505), and the fixing motor (505) is fixedly mounted on the inner wall of the inner cylinder (301);
two adjusting motors (407) are fixedly mounted on the outer wall of the circular shell (406), the two adjusting motors (407) correspond to the two second lead screws (408) one by one, and output shafts of the adjusting motors (407) are connected with the second lead screws (408).
2. The fishing equipment for oilfield downhole operation according to claim 1, wherein one side of the connecting shell (101), which is far away from the connecting plate (102), is open, the stabilizing mechanism (200) comprises two top wall cylinders (201), a top wall plate (202) is installed at the end of a piston rod of each top wall cylinder (201), an adjusting cylinder (203) is arranged between the two top wall cylinders (201), a first connecting block (204) is installed at the end of the piston rod of each adjusting cylinder (203), two connecting strips (205) are installed on each first connecting block (204), and a plurality of guide wheels (206) are rotatably installed between the two connecting strips (205).
3. A fishing device for oilfield downhole operation according to claim 2, wherein the bottom of the outer cylinder (300) is open, two annular guide rails (306) are fixedly installed in the outer cylinder (300), a fixing ring (305) is rotatably installed on the annular guide rails (306), and both the two fixing rings (305) are fixedly installed on the outer wall of the inner cylinder (301).
4. A fishing device for oilfield downhole operation according to claim 3, wherein the outer cylinder (300) is fixedly provided with a rotating motor (302) on the inner wall, the rotating motor (302) is provided with a gear (303) on the end of an output shaft, the inner cylinder (301) is fixedly provided with a toothed ring (304) on the outer wall, and the gear (303) and the toothed ring (304) are meshed with each other.
5. A method of operating a fishing apparatus for use in oilfield downhole operations as defined in claim 4, comprising the steps of:
the method comprises the following steps: the outer frame body (100) is placed into an oil field well through a lifting rope, the guide wheel (206) is in contact with the inner wall of the oil field well, the guide wheel (206) rolls along the inner wall of the oil field well in the descending process of the outer frame body (100), and when the outer frame body (100) descends to a salvage position, the inner cylinder body (301) drives the circular shell (406) to rotate to the position above a salvaged object;
step two: when non-metal objects are salvaged, a piston rod of a salvage cylinder (404) drives a circular shell (406) to descend, an output shaft of a rotary cylinder (405) drives the circular shell (406) to rotate, then four pull pipes (410) descend to the side edges of the salvaged objects, hooks on the four pull pipes (410) limit the non-metal objects, then the piston rod of the salvage cylinder (404) contracts and drives the circular shell (406) to ascend, then the non-metal objects are driven to ascend into an inner cylinder body (301), a first lead screw (401) drives a side shifting seat (403) to horizontally move, and then the non-metal objects are driven to move to the upper portion of a collection net (501);
step three: four trombone slide (410) reverse movement, the non-metal object between four trombone slide (410) falls into collects net (501), opens fixed motor (505), and fixed motor (505) output shaft drives right angle block (504) and rotates, and right angle block (504) drive rotary rod (503) and rotate, and net (501) shake is collected in the cooperation of fixed pin (502) pulling in rotary rod (503), and the oil on non-metal object surface flows out from collecting net (501) surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110847231.6A CN113294111B (en) | 2021-07-27 | 2021-07-27 | Fishing equipment for oilfield downhole operation and working method thereof |
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| CN202110847231.6A CN113294111B (en) | 2021-07-27 | 2021-07-27 | Fishing equipment for oilfield downhole operation and working method thereof |
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| CN113898317B (en) * | 2021-09-30 | 2023-12-29 | 天津市地质研究和海洋地质中心 | Equipment and method for salvaging foreign matters in underground water environment monitoring well |
| CN114704220B (en) * | 2022-03-15 | 2023-07-18 | 西南石油大学 | Electromagnetic fisher for horizontal well |
| CN114412405B (en) * | 2022-03-15 | 2023-10-13 | 西南石油大学 | Electromagnetic salvaging system and method |
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| CN113294111A (en) | 2021-08-24 |
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Effective date of registration: 20230919 Address after: 163000 Honggang South 3rd Street, Honggang District, Daqing City, Heilongjiang Province Patentee after: Daqing Gaoping Oilfield Service Co.,Ltd. Address before: 257081 room 435, Chuangye Valley, high tech Zone, No.1 building, No.23 Xianhe Road, Dongying District, Dongying City, Shandong Province Patentee before: Shandong Baiyuan Technology Co.,Ltd. |