CN211623374U

CN211623374U - Fishing device for oil field underground

Info

Publication number: CN211623374U
Application number: CN201921690343.XU
Authority: CN
Inventors: 张正喜; 高建军; 林成府
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-10-02
Anticipated expiration: 2029-10-11

Abstract

The utility model relates to a fishing device for oil field underground, which comprises a fishing machine body, a magnetic fishing mechanism, a telescopic fishing mechanism and a hydraulic mechanism; the upper end of the salvaging machine body is fixedly connected with a threaded joint, the upper side of the salvaging machine body is provided with a circular slot hole, and the lower side of the salvaging machine body is provided with a salvaging sleeve; the fishing sleeve outer wall circumference equipartition rigid coupling has magnetic force fishing mechanism, and inside is provided with flexible fishing mechanism. The utility model is connected with a salvaging pump through a threaded joint, the salvaging pump drives the device to move underground, a magnetic rod in a magnetic salvaging mechanism carries magnetic force, a metal net bag fixedly connected with the magnetic rod carries the magnetic force, the contact area of the metal net bag is large, the metal net bag can adsorb milled metal debris falling objects, and the magnetic rod arranged in an inclined way can be matched with a ratchet hook to salvage rope falling objects; the device has simple structure, simple operation and stronger function.

Description

Fishing device for oil field underground

Technical Field

The utility model relates to an oil field is fishing device technical field in the pit, concretely relates to oil field is fishing device for in pit.

Background

In the process of oil field development, underground fishing is a necessary link, and the underground fishing technology refers to a technology for recovering normal oil production of an oil well, wherein accidents such as shaft blockage and the like occur in the oil field exploitation production, influence is caused on the oil field exploitation, and the technology is used for recovering the normal oil production of the oil well.

The underground falling objects are various in types and different in shapes, and mainly comprise pipe falling objects, rod falling objects, rope falling objects, underground instrument and tool falling objects, damaged rubber, slips, milling metal chips and the like; the fishing tools are different according to different falling object characteristics; the existing fishing tools mainly comprise a fishing barrel, a fishing spear, a male cone and a female cone. A strong magnetic salvaging device, a tiger mouth, an inner hook, an outer hook, a grab, a salvaging cup, a steel wire brush and the like; different fishing tools are selected to salvage different fallen objects during fishing operation.

The above has the following disadvantages: in the prior art, the method has the advantages that the method can not effectively salvage the fallen objects such as rope fallen objects, underground instrument and tool fallen objects, milled metal chips of a grinding sleeve and the like simultaneously, needs multiple operations and is troublesome to operate; the existing fishing device is complex in structure, troublesome to operate and single in functionality.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at overcomes at least a defect among the prior art, provides an oil field is fishing device for in pit, can overcome the problem that prior art exists effectively to some rope class junk, instrument class junk in the pit, and grind junk such as cover milling metal piece and can not effectively salvage, has still solved the problem that current fishing device structure is complicated, troublesome poeration and functional singleness simultaneously.

In order to realize the technical scheme, the utility model discloses a following technical scheme:

a fishing device for oil field underground comprises a fishing machine body, a magnetic fishing mechanism, a telescopic fishing mechanism and a hydraulic mechanism; the upper end of the salvaging machine body is fixedly connected with a threaded joint, a circular slot hole is arranged in the middle of the upper side of the salvaging machine body, and a salvaging sleeve is arranged on the lower side of the salvaging machine body; magnetic fishing mechanisms are uniformly and fixedly connected to the outer wall of the fishing sleeve in the circumferential direction, and telescopic fishing mechanisms are arranged inside the fishing sleeve; the upper end of the telescopic fishing mechanism is arranged inside a circular groove hole formed in the upper side of the fishing machine body, and the upper end of the telescopic fishing mechanism is communicated with the hydraulic mechanism.

Furthermore, the magnetic fishing mechanism comprises a magnetic rod and a metal net bag; the magnetic rod is obliquely arranged, the height of the magnetic rod is fixedly connected with the fishing sleeve pipe than the bottom end of the magnetic rod, the upper side of the higher end of the magnetic rod is vertically provided with a ratchet hook, and the lower side of the magnetic rod is fixedly connected with a metal net bag.

Furthermore, the aperture of the mesh of the metal net bag is 1-2 mm.

Furthermore, the telescopic fishing mechanism comprises a piston cavity, a piston rod, a fixed block, a spring, a fixed sleeve block and a fishing claw; the piston cavity is fixedly connected with the inside of a circular groove hole on the upper side of the fishing machine body, and a piston rod is arranged inside the piston cavity; the piston rod extends downwards and penetrates through the fixed block, the spring and the fixed sleeve block, and the lower end of the piston rod is hinged with a fishing claw; the fixed block is fixedly connected with the piston rod and is positioned at the upper end of the salvaging sleeve; the outer side of the fixed sleeve block is fixedly connected with the inner wall of the salvaging sleeve through a fixed support rod and is positioned in the middle of the salvaging sleeve; the upper end of the spring is fixedly connected with the fixed block, and the lower end of the spring is fixedly connected with the fixed sleeve block; the lower end of the outer side of the fixed sleeve block is connected with a connecting rod; the lower end of the connecting rod is hinged with the upper end of the fishing claw.

Furthermore, the fishing claws are uniformly distributed at the lower end of the piston rod along the circumferential direction, and the number of the fishing claws is not less than 3; the connecting rods are uniformly distributed on the fixed sleeve block along the circumferential direction and correspond to the fishing claws.

Furthermore, the hydraulic mechanism comprises a hydraulic oil cylinder and an oil pipe; the hydraulic oil cylinder is placed on the ground, and the right end of the hydraulic oil cylinder is communicated with an oil pipe; the oil pipe is a telescopic oil pipe, and the lower end of the oil pipe penetrates through the upper side of the fishing machine body to be communicated with the upper part of the piston cavity.

Adopt the utility model provides a technical scheme compares with known public technique, has following beneficial effect: the utility model is connected with a salvaging pump through a threaded joint, the salvaging pump drives the device to move underground, a magnetic rod in a magnetic salvaging mechanism carries magnetic force, a metal net bag fixedly connected with the magnetic rod carries the magnetic force, the contact area of the metal net bag is large, the metal net bag can adsorb milled metal debris falling objects, and the magnetic rod arranged in an inclined way can be matched with a ratchet hook to salvage rope falling objects; a piston rod in the telescopic fishing mechanism moves downwards to drive a fishing claw to move downwards, the fishing claw is limited by a connecting rod arranged on a fixed sleeve block, the fishing claw opens to catch the fallen objects of underground instruments and tools, the piston rod moves upwards, and the fishing claw contracts inwards under the cooperation of the connecting rod to catch the fallen objects; the fishing pump lifts the device, so that the fished falling objects are taken out; the device has simple structure, simple operation and stronger function.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic structural view of the telescopic fishing mechanism of the present invention;

the reference numerals in the drawings denote: 1-salvaging the organism; 101-a threaded joint; 102-fishing casing; 103-circular slot; 2-magnetic fishing mechanism; 201-magnetic pole; 202-metal net bag; 203-ratchet hook; 3, a telescopic fishing mechanism; 301-piston chamber; 302-a piston rod; 303-salvaging a claw; 304-fixed block; 305-a fixed nest block; 306-a spring; 307-a stationary strut; 308-a connecting rod; 4-a hydraulic mechanism; 401-hydraulic cylinder; 402-oil pipe; 403-ground.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Examples

Referring to fig. 1, the fishing device for the oil field underground comprises a fishing machine body 1, a magnetic fishing mechanism 2, a telescopic fishing mechanism 3 and a hydraulic mechanism 4, wherein the upper end of the fishing machine body 1 is fixedly connected with a threaded joint 101, the upper side of the fishing machine body 1 is provided with a circular slot hole 103, and the lower side of the fishing machine body is provided with a fishing sleeve 102; the magnetic fishing mechanisms 2 are uniformly and fixedly distributed on the outer wall of the fishing sleeve 102 in the circumferential direction, and the telescopic fishing mechanisms 3 are arranged in the fishing sleeve; the upper end of the telescopic fishing mechanism 3 is arranged inside a circular groove hole 103 which is arranged in the middle inside the upper side of the fishing machine body 1, and the upper end of the telescopic fishing mechanism 3 is communicated with the hydraulic mechanism 4.

Referring to fig. 1 and 2, specifically, the magnetic fishing mechanism 2 includes a magnetic rod 201 and a metal string bag 202; the magnetic rod 201 is obliquely arranged, the height of the magnetic rod is larger than that of the bottom end of the magnetic rod and fixedly connected with the fishing sleeve 102, the upper side of the higher end of the magnetic rod is vertically provided with a ratchet hook 203, and the lower side of the magnetic rod is fixedly connected with a metal net bag 202; the aperture of the meshes of the metal net bag 202 is 1-2 mm;

referring to fig. 1 to 3, specifically, the telescopic fishing mechanism 3 includes a piston cavity 301, a piston rod 302, a fixed block 304, a spring 306, a fixed sleeve block 305, and a fishing claw 303; the piston cavity 301 is fixedly connected with the inside of the circular groove hole 103 on the upper side of the fishing machine body 1, and a piston rod 302 is arranged inside the piston cavity 301; the piston rod 302 extends downwards and penetrates through the fixed block 304, the spring 306 and the fixed sleeve block 305, and the lower end of the piston rod is hinged with a fishing claw 303; the fixed block 304 is fixedly connected with the piston rod 302 and is positioned at the upper end of the fishing sleeve 102; the outer side of the fixed sleeve block 305 is fixedly connected with the inner wall of the fishing sleeve 102 through a fixed strut 307 and is positioned in the middle of the fishing sleeve 102; the upper end of the spring 306 is fixedly connected with the fixed block 304, the lower end of the spring is fixedly connected with the fixed sleeve block 305, and the acting force of the salvaging claw 303 for salvaging the fallen objects is buffered; the lower end of the outer side of the fixed sleeve block 305 is connected with a connecting rod 308 in a cross mode; the lower end of the connecting rod 308 is hinged with the upper end of the fishing claw 303; the fishing claws 303 are uniformly distributed at the lower end of the piston rod 302 along the circumferential direction, and the number of the fishing claws 303 is not less than 3; the connecting rods 308 are uniformly distributed on the fixed sleeve block 305 along the circumferential direction and correspond to the fishing claws 303.

Referring to fig. 1 and 2, in particular, the hydraulic mechanism 4 includes a hydraulic oil cylinder 401 and an oil pipe 402; the hydraulic oil cylinder 401 is placed on the ground 403, and the right end of the hydraulic oil cylinder 401 is communicated with an oil pipe 402; oil pipe 402 is scalable oil pipe, and oil pipe 402 lower extreme passes salvages 1 upside to with the switch-on of piston chamber 301 upper portion, drive piston rod 302 motion through hydraulic cylinder 401, avoid adopting electronic flexible mode in flexible salvage mechanism 3, thereby avoided the appearance of electric spark, improved greatly the utility model discloses a security.

Referring to fig. 1 to 3, the utility model discloses theory of operation: the utility model discloses a screwed joint 101 is connected with the salvage pump, and the salvage pump drives this device to move in the pit, and magnetic force is carried to magnetic force pole 201 in magnetic force salvage mechanism 2, and the metal string bag 202 of its rigid coupling carries magnetic force, and the area of contact of metal string bag 202 is great can adsorb the mill sleeve and mill metal debris class junk, and the magnetic force pole 201 that the slope set up cooperates with the ratchet 203 and can salvage rope class junk; the hydraulic mechanism 4 drives the telescopic fishing mechanism 3 to move by introducing liquid into the piston cavity 301 or sucking out the liquid, a piston rod 302 of the telescopic fishing mechanism 3 moves downwards to drive a fishing claw 303 to move downwards, the fishing claw 303 is limited by a connecting rod 307 arranged on a fixed sleeve block 305, the fishing claw 303 is opened to grab and fish down the fallen objects of underground instruments, the piston rod 302 moves upwards, and the fishing claw 303 contracts inwards under the coordination of the connecting rod 308 to grab and fish the fallen objects; the fishing pump lifts the device, so that the fished falling objects are taken out.

It is required to explain that the utility model discloses used hydraulic cylinder 401 is current product, the utility model discloses do not make any change to it, for direct reference, do not do in the event specification and describe in detail.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A fishing device for oil field underground comprises a fishing machine body (1), a magnetic fishing mechanism (2), a telescopic fishing mechanism (3) and a hydraulic mechanism (4); the fishing device is characterized in that the upper end of the fishing machine body (1) is fixedly connected with a threaded joint (101), the upper side of the fishing machine body (1) is provided with a circular slot hole (103), and the lower side of the fishing machine body is provided with a fishing sleeve (102); the magnetic fishing mechanisms (2) are uniformly and fixedly distributed on the outer wall of the fishing sleeve (102) in the circumferential direction, and the telescopic fishing mechanisms (3) are arranged in the fishing sleeve; the upper end of the telescopic fishing mechanism (3) is arranged inside a circular groove hole (103) which is arranged in the middle inside the upper side of the fishing machine body (1), and the upper end of the telescopic fishing mechanism (3) is communicated with the hydraulic mechanism (4).

2. An oilfield downhole fishing device according to claim 1, wherein the magnetic fishing mechanism (2) comprises a magnetic rod (201) and a metal net bag (202); the magnetic rod (201) is obliquely arranged, the height of the magnetic rod is fixedly connected with the fishing sleeve (102) through the bottom end, the upper side of the higher end of the magnetic rod is vertically provided with a ratchet hook (203), and the lower side of the magnetic rod is fixedly connected with a metal net bag (202).

3. A fishing device for oil field downhole as claimed in claim 2, wherein the diameter of the mesh of the metal net bag (202) is 1-2 mm.

4. An oilfield downhole fishing device according to claim 1, wherein the telescopic fishing mechanism (3) comprises a piston cavity (301), a piston rod (302), a fixed block (304), a spring (306), a fixed sleeve block (305) and a fishing claw (303); the piston cavity (301) is fixedly connected with the inside of a circular groove hole (103) on the upper side of the fishing machine body (1), and a piston rod (302) is installed inside the piston cavity (301); the piston rod (302) extends downwards, penetrates through the fixed block (304), the spring (306) and the fixed sleeve block (305), and the lower end of the piston rod is hinged with a fishing claw (303); the fixed block (304) is fixedly connected with the piston rod (302) and is positioned at the upper end of the fishing sleeve (102); the outer side of the fixed sleeve block (305) is fixedly connected with the inner wall of the fishing sleeve (102) through a fixed support rod (307) and is positioned in the middle of the fishing sleeve (102); the upper end of the spring (306) is fixedly connected with the fixed block (304), and the lower end of the spring is fixedly connected with the fixed sleeve block (305); a connecting rod (308) is connected with the lower end of the outer side of the fixed sleeve block (305); the lower end of the connecting rod (308) is hinged with the upper end of the fishing claw (303).

5. A fishing device for oil field downhole according to claim 4, wherein the fishing claws (303) are uniformly distributed at the lower end of the piston rod (302) along the circumferential direction, and the number of the fishing claws (303) is not less than 3; the connecting rods (308) are uniformly distributed on the fixed sleeve block (305) along the circumferential direction and correspond to the fishing claws (303).

6. An oilfield downhole fishing device according to claim 4, wherein the hydraulic mechanism (4) comprises a hydraulic cylinder (401) and a tubing (402); the hydraulic oil cylinder (401) is placed on the ground (403), and the right end of the hydraulic oil cylinder (401) is communicated with an oil pipe (402); the oil pipe (402) is a telescopic oil pipe, and the lower end of the oil pipe (402) penetrates through the upper side of the fishing machine body (1) and is communicated with the upper part of the piston cavity (301).