CN220302090U

CN220302090U - Plunger gas lift card fixing tool

Info

Publication number: CN220302090U
Application number: CN202321895391.9U
Authority: CN
Inventors: 张岁兴
Original assignee: Chengdu Jinshi Yuxing Petroleum Engineering Technology Co ltd
Current assignee: Chengdu Jinshi Yuxing Petroleum Engineering Technology Co ltd
Priority date: 2023-07-18
Filing date: 2023-07-18
Publication date: 2024-01-05
Anticipated expiration: 2033-07-18

Abstract

The utility model discloses a plunger gas lift locking tool which comprises a throwing and fishing device and a locking device main body, wherein the locking device main body comprises a throwing and fishing connection structure, a buffer structure and a locking assembly, the throwing and fishing device comprises a throwing and fishing shell, an electromagnet, a telescopic piece and a motor, the motor is arranged on the throwing and fishing shell, the output end of the motor is connected with the telescopic piece, a limit plug-in unit is arranged at the bottom of the telescopic piece and is used for being plugged with the top of a transmission rod, the throwing and fishing shell is also provided with the electromagnet which is used for being magnetically connected with a fixed head, the fixed head is connected with the locking shell through the buffer structure, the bottom of the transmission rod penetrates through the fixed head and the buffer structure and stretches into the locking shell to be in threaded connection with an inner cavity of the locking shell, and a slip capable of radially moving is arranged on the locking shell and stretches into the inner cavity of the locking shell. The utility model solves the problem of low success rate of throwing the underground fastener in steel wire operation, and can easily throw the underground fastener in a highly-inclined angle well and a horizontal well.

Description

Plunger gas lift card fixing tool

Technical Field

The utility model relates to the field of oil and gas field exploitation equipment, in particular to a plunger gas lift clamping tool.

Background

The plunger gas lift drainage gas production method is to push the plunger in the oil pipe to lift water by using the self energy of the gas well, does not need other power equipment, has low production cost and is considered as the optimal drainage gas production process. The plunger is used as a solid sealing interface to separate the lifted gas from the lifted liquid, so that gas channeling and liquid falling back are reduced, and the efficiency of lifting the gas is improved. The energy of the plunger gas lift is mainly derived from stratum, but when stratum gas is insufficient, certain high-pressure gas can be injected into the well. The gas pushes the liquid at the upper part of the plunger from the bottom of the well to the well head, so that the accumulated liquid at the bottom of the well is discharged, the production pressure difference is increased, and the production time of the gas well is prolonged. For a well with low conventional continuous gas lift or intermittent gas lift efficiency, the production efficiency can be improved by adopting plunger gas lift, and invalid consumption of gas is avoided.

At present, the production of plunger gas lift wells is also mostly carried out manually, the plunger device needs to preset an underground clamping device through steel wire operation, and the descending depth of the clamping device is limited by the steel wire operation capability to be more than 40 degrees of well deviation, so that the application of plunger gas lift processes in horizontal wells with dropsy in inclined well sections and even horizontal sections is limited. The Chinese patent document CN115613983A discloses a plunger gas lift locking device and a matched throwing and fishing tool, wherein the locking mode is an active locking device, and the plunger gas lift locking device comprises a throwing and fishing connecting component, a buffer rod, a locking component and the matched throwing and fishing tool. Through the cooperation of the two, can realize the oil pipe assigned position in high inclination well and horizontal well and block, the supporting instrument of throwing and drag for also can break away from with the block ware smoothly after the card is decided, and then reduces and throws and drag for the probability that the device will block ware take out. The utility model provides a plunger gas lift clamping tool with other structures.

Disclosure of Invention

The utility model aims to provide a plunger gas lift locking tool, which solves the problem of low success rate of releasing an underground locking device in steel wire operation and can easily release the underground locking device in a highly-inclined angle well and a horizontal well.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a plunger gas lift card fixing tool, includes throws and drags for device and card fixer main part, and card fixer main part is including throwing that the from the top down set up drags for connection structure, buffer structure and card fixing component, throw and drag for the device and drag for casing, connector link, electro-magnet including throwing, the top of throwing and drag for the casing is provided with the connector link with the axle center, the connector link is used for being connected with steel wire operation tool.

As a preferable technical scheme, a motor is arranged on the casting and fishing shell, the output end of the motor is connected with the top end of a telescopic piece, and the bottom of the telescopic piece is provided with a limiting plug-in with a non-circular section for being plugged with the top of a transmission rod; the throwing and fishing shell is also provided with an electromagnet which is magnetically connected with the fixed head.

As a preferable technical scheme, the throwing and fishing connection structure comprises the fixed head, the clamping assembly comprises a clamping shell, the fixed head is connected with the clamping shell through a buffer structure, and the bottom of the transmission rod penetrates through the fixed head and the buffer structure and stretches into the clamping shell; the transmission rod can move up and down relative to the fixed head, the buffer structure and the clamping shell.

As a preferable mode, the locking assembly locks when the transmission rod descends, and releases the locking assembly when the transmission rod ascends.

As a preferable technical scheme, the transmission rod is in threaded connection with the cavity in the clamping shell; the clamping shell is provided with a slip capable of moving radially, and the slip can extend into the cavity inside the clamping shell in the radial moving process.

As a preferred technical scheme, the bottom of throwing and dragging shell is provided with the spacing groove, the spacing groove cell wall is equipped with the direction inclined plane, inserts the spacing inslot to the transfer line and leads, the motor sets up in throwing and dragging the cavity of shell, and the bottom of the extensible member that the motor connects is located the spacing inslot.

As a preferable technical scheme, an electromagnet is embedded in the limit groove, the bottom of the limit groove is magnetically connected with the top of the fixed head, and the upper part of the transmission rod is made of a non-metal material.

As a preferable technical scheme, the lower part of the limiting plug-in is provided with a guide inclined plane, and a guide inclined plane matched with the slot in the top of the transmission rod for being inserted into the slot is arranged in the slot.

As a preferable technical scheme, the buffer structure comprises a buffer outer cylinder and a buffer inner cylinder; the top of card body case is provided with the buffering urceolus, buffering urceolus and buffering inner tube sliding connection, the cover is equipped with buffer spring on the buffering inner tube, buffer spring upper end is connected with the bottom of fixed head, and the lower extreme is connected with buffering urceolus top.

As a preferable technical scheme, a bearing is further arranged in the casting and fishing shell, and the outer wall and the inner wall of the bearing are respectively connected with the casting and fishing shell and the telescopic piece.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the locking and unlocking of the locking device can be controlled freely by controlling the throwing and fishing device, so that the throwing success rate of the underground locking device is improved, and the probability of bringing the locking device out of the pipeline again when the locking device is thrown is reduced.

Through the cooperation with throwing and drag for the device to use, can realize throwing easily in the inclined angle well of high inclination or horizontal well and drag for the downhole fastener.

Drawings

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic view of a latch according to the present utility model;

FIG. 2 is a schematic view of the throwing apparatus of the present utility model;

wherein reference numerals are as follows: the device comprises a fixed head 1, a transmission rod 2, a buffer inner cylinder 3, a rubber block 4, a clamping shell 5, slips 6, a thread section 7, a buffer outer cylinder 8, a bump 9, a sliding groove 10, a buffer spring 11, a casting shell 12, a connecting buckle 13, an electromagnet 14, a limiting groove 15, a telescopic piece 16, a motor 17, a bearing 18 and a limiting plug 19.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1-2, a plunger gas lift locking tool comprises a casting and fishing device and a locking device main body, wherein the locking device main body comprises a casting and fishing connection structure, a buffer structure and a locking assembly which are arranged from top to bottom, the casting and fishing device comprises a casting and fishing shell 12, a connection buckle 13 and an electromagnet 14, the top end of the casting and fishing shell 12 is coaxially provided with the connection buckle 13, and the connection buckle 13 is used for being connected with a steel wire operation tool.

The casting and fishing shell 12 is provided with a motor 17, the output end of the motor 17 is connected with the top end of a telescopic piece 16, and the bottom of the telescopic piece 16 is provided with a limiting plug-in piece 19 with a non-circular section for being plugged with the top of the transmission rod 2; the throwing and fishing shell 12 is also provided with an electromagnet 14 which is used for being magnetically connected with the fixed head.

The casting and fishing shell 12 is also provided with a bearing 18, and the outer wall and the inner wall of the bearing 18 are respectively connected with the casting and fishing shell 12 and the telescopic piece 16.

The throwing and fishing connection structure comprises the fixed head 1, the clamping assembly comprises a clamping shell 5, the fixed head 1 is connected with the clamping shell 5 through a buffer structure, and the bottom of the transmission rod 2 penetrates through the fixed head 1 and the buffer structure to extend into the clamping shell 5; the transmission rod 2 can move up and down relative to the fixed head 1, the buffer structure and the clamping shell 5.

It should be emphasized that when the throwing and fishing device is assembled with the latch main body (i.e. when the bottom of the limiting groove abuts against the top of the fixing head 1), the top of the driving rod 2 is inserted into the limiting groove 15 and is in a plugging state with the telescopic member 16. In this embodiment, the transmission rod 2 is made of a non-metal material, and the fixing head 1 is made of a metal material. When the electromagnet 14 of the limit groove 15 works, the electromagnet adsorbs and fastens the fixed head 1 without affecting the action of the transmission rod 2.

The locking component is in threaded connection, when the transmission rod 2 descends, the locking component locks, and when the transmission rod 2 ascends, the locking component releases locking.

The transmission rod 2 is in threaded connection with the cavity inside the clamping shell 5; the clamping shell 5 is provided with a slip 6 capable of moving radially, and the slip 6 can extend into the cavity inside the clamping shell 5 in the radial moving process.

The bottom of the casting and fishing shell 12 is provided with a limit groove 15, the wall of the limit groove 15 is provided with a guide inclined plane, the transmission rod 2 is inserted into the limit groove 15 to be guided, a motor 17 is arranged in a cavity of the casting and fishing shell 12, and the bottom of a telescopic piece 16 connected with the motor 17 is positioned in the limit groove 15.

The electromagnet 14 is embedded in the limit groove 15, the bottom of the limit groove 15 is magnetically connected with the top of the fixed head 1, and the upper part of the transmission rod 2 is a transmission rod 2 made of nonmetallic materials.

The lower part of the limit plug-in 19 is provided with a guide inclined plane, and a guide inclined plane matched with the slot is arranged in the slot at the top of the transmission rod 2 inserted with the limit plug-in.

The buffer structure comprises a buffer outer cylinder 8 and a buffer inner cylinder 3; the top of the clamping shell 5 is provided with a buffer outer cylinder 8, the buffer outer cylinder 8 is in sliding connection with the buffer inner cylinder 3, a buffer spring 11 is sleeved on the buffer inner cylinder 3, the upper end of the buffer spring 11 is connected with the bottom end of the fixed head 1, and the lower end of the buffer spring 11 is connected with the top of the buffer outer cylinder 8.

The bottom of the transmission rod 2 is provided with a thread section 7 with a truncated cone structure, the shape of the thread section is matched with the inner cavity of the clamping shell 5, and the section with the large diameter of the thread section 7 is positioned above the section with the small diameter of the thread section 7. The flanks of the thread segments 7 may be in contact with the inner sides of the four slips 6. When the transmission rod 2 descends, the thread section 7 descends along with the transmission rod 2, the section diameter of the thread section 7 contacted with the slips 6 gradually becomes larger, and the descent of the thread section 7 applies thrust to the inner side of the slips 6, so that the slips 6 are pushed out of the clamping shell 5, and the clamping device is clamped. When the transmission rod 2 ascends, the thread section 7 also ascends, at the moment, the slips 6 are not pushed by the thread section 7 any more, no force is applied on the level, and the slip can move freely, so that the clamping device releases the clamping.

The working principle and the using flow of the embodiment are as follows:

when the device is used, the connecting buckle 13 of the embodiment is connected with a steel wire working tool, the clamp is assembled with the throwing and fishing device on the ground, namely, the top of the clamp is inserted into the limit groove 15 of the throwing and fishing device, the fixed head 1 of the clamp is magnetically connected with the limit groove 15, namely, the connection is realized through the work of the electromagnet 14, the top of the transmission rod 2 is spliced with the telescopic piece 16, and then the steel wire working tool places the preset clamping position of the pipeline between the embodiment and the clamp. At this time, the motor 17 rotates positively to apply a rotational force to the expansion piece 16 and the transmission rod 2 clamped by the expansion piece, the threaded section 7 at the bottom of the transmission rod 2 is in threaded connection with the clamping shell 5 of the clamping assembly, the expansion piece 16 descends gradually in a threaded manner under the action of the rotational force, the expansion piece 16 is matched with the expansion piece to stretch, and the slip 6 in the clamping shell 5 is pushed out by the descending of the threaded section 7, so that the clamping device is in a clamping state. The electromagnet 14 of the rear throwing and fishing device stops working, the steel wire working tool lifts the throwing and fishing device, and the clamp main body is positioned in the oil pipe.

When the clamping device is required to be taken out of the oil pipe, the steel wire working tool is used for lowering the throwing and fishing device again, the limiting groove 15 of the throwing and fishing device is clamped into the transmission rod 2 of the throwing and fishing structure, the telescopic piece 16 is spliced with the transmission rod 2, the motor 17 is reversed at the moment, the threaded section 7 is driven to gradually rise until no thrust is applied to the slips 6, the slips 6 can radially move at the moment, the clamping device loses the clamping function, the throwing and fishing device and the clamping device are connected into a whole by utilizing the suction force of the electromagnet 14, and the steel wire working tool is used for taking out.

When the throwing and fishing device is used for fishing out the clamping device from the oil pipe, the steel wire working tool is lowered for a certain length, and the limit plug-in 19 of the pentahedron structure at the lower part of the telescopic piece 16 cannot be guaranteed to be completely aligned with the clamping groove at the top of the transmission rod 2, so that connection is realized. Therefore, in this embodiment, the lower portion of the pentahedron is provided with a guiding slope, and the upper groove wall of the clamping groove is provided with a guiding slope matching with the guiding slope. When the electromagnet 14 works, suction force is generated, and the clamping device is fixedly clamped in the oil pipe, so that the top surface of the fixing head 1 is attached to the bottom surface of the limiting groove 15 by the suction force, and under the action of the suction force, the throwing and fishing device is flexibly connected with a steel wire working tool, and therefore, the guide inclined surface on the pentagonal prism can guide the whole telescopic piece 16 to be inserted into the clamping groove, so that the telescopic piece 16 is connected with the transmission rod 2.

The present utility model can be well implemented according to the above-described embodiments. It should be noted that, based on the above structural design, even if some insubstantial modifications or color-rendering are made on the present utility model, the essence of the adopted technical solution is still the same as the present utility model, so it should be within the protection scope of the present utility model.

Claims

1. The utility model provides a plunger gas lift card fixing tool, includes throws and drags out device and card fixer main part, and card fixer main part includes throwing and drags out connection structure, buffer structure and the card subassembly that from the top down set up, and its characterized in that throws and drags out device including throwing and drags out casing (12), connector link (13), electro-magnet (14), extensible member (16), motor (17), the top of throwing and drags out casing (12) is equipped with connector link (13), connector link (13) are used for being connected with steel wire operation tool, throw and drag out and be equipped with motor (17) on casing (12), the top of extensible member (16) is connected to the output of motor (17), the bottom of extensible member (16) is equipped with spacing plug-in components (19) that the section is non-circular for pegging graft with transfer line (2) top; an electromagnet (14) which is used for being magnetically connected with the fixed head (1) is also arranged on the throwing and fishing shell (12); the throwing and fishing connecting structure comprises the fixed head (1), the clamping assembly comprises a clamping shell (5), the fixed head (1) is connected with the clamping shell (5) through a buffer structure, and the bottom of the transmission rod (2) penetrates through the fixed head (1) and the buffer structure to extend into the clamping shell (5); the transmission rod (2) can move up and down relative to the fixed head (1), the buffer structure and the clamping shell (5); the transmission rod (2) is in threaded connection with the inner cavity of the clamping shell (5); the clamping shell (5) is provided with a slip (6) capable of moving radially, and the slip (6) can extend into the cavity inside the clamping shell (5) in the radial moving process.

2. The plunger gas lift locking tool according to claim 1, wherein a limit groove (15) is formed in the bottom end of the casting and fishing shell (12), a guide inclined plane is formed in the groove wall of the limit groove (15), the transmission rod (2) is inserted into the limit groove (15) to be guided, the motor (17) is arranged in a cavity of the casting and fishing shell (12), and the bottom of a telescopic piece (16) connected with the motor (17) is located in the limit groove (15).

3. The plunger gas lift clamping tool according to claim 2, wherein an electromagnet (14) is embedded in the limiting groove (15), the bottom of the limiting groove (15) is magnetically connected with the top of the fixed head (1), and the upper part of the transmission rod (2) is a transmission rod (2) made of nonmetallic materials.

4. The plunger gas lift locking tool according to claim 1, wherein the lower part of the limit plug-in (19) is provided with a guiding inclined plane, and a guiding inclined plane matched with the guiding inclined plane is arranged in a slot at the top of the transmission rod (2) which is inserted into the guiding inclined plane.

5. The plunger gas lift locking tool according to claim 1, wherein the buffer structure comprises a buffer outer cylinder (8) and a buffer inner cylinder (3); the top of card body (5) is provided with buffering urceolus (8), buffering urceolus (8) and buffering inner tube (3) sliding connection, the cover is equipped with buffer spring (11) on buffering inner tube (3), buffer spring (11) upper end is connected with the bottom of fixed head (1), and the lower extreme is connected with buffering urceolus (8) top.

6. The plunger gas lift locking tool according to claim 1, wherein a bearing (18) is further arranged in the casting and fishing shell (12), and the outer wall and the inner wall of the bearing (18) are respectively connected with the casting and fishing shell (12) and the telescopic piece (16).