CN214836216U

CN214836216U - Underground release switch

Info

Publication number: CN214836216U
Application number: CN202121118304.XU
Authority: CN
Inventors: 李营波; 伍学军; 郭文卿; 李永祥; 李盈锦; 杜东霖; 王虎; 杜灶明; 邵国耕; 朱旭; 王新燕
Original assignee: Dongying Jiangrun Petroleum Technology Development Co ltd
Current assignee: Dongying Jiangrun Petroleum Technology Development Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-11-23
Anticipated expiration: 2031-05-24

Abstract

The utility model relates to the field of oil field well repair, and provides an underground release switch, wherein an upper joint is connected with an outer barrel, a locking platform is arranged on the inner wall of the upper part of the outer barrel, and a locking mechanism is arranged at the locking platform; the protective cover is connected with the plug, the lower part of the protective cover is provided with a through hole, a release core is arranged in the protective cover, the lower part of the release core is provided with a stop ring, a lock ball is arranged in the through hole, and the lock ball is clamped on the locking table; the bottom of the locking mechanism and the outer wall of the outer barrel are movably connected with a discharge port, the bottom of the outer barrel is connected with a blocking joint, a release ejector rod penetrates through the blocking joint and extends into the outer barrel, and a spring is sleeved at the lower part of the release ejector rod; has the advantages that: the utility model discloses simple structure, release ejector pin striking kayser mechanism, the cavity intercommunication in discharge port and the oil pipe after kayser mechanism falls, it is intraductal that the filler gets into the oil well cover through the discharge port, lifts the tubular column and accomplishes the packing, and the filling method is swift, and labour saving and time saving saves the workover cost, reduces intensity of labour.

Description

Underground release switch

Technical Field

The utility model belongs to the technical field of the oil field well workover and specifically relates to a release switch in pit is related to.

Background

The present filling method is that a smooth oil pipe is put down to the bottom of a well, the filled articles are conveyed to the bottom of the well through an oil pipe by carrier fluid, the carrier fluid is separated from the filled articles, the carrier fluid returns to the ground, and the filled articles are stored at the bottom of the well. The method has the advantages of multiple working procedures, long construction time, easy pollution of the oil layer by the carrying fluid and high cost.

Disclosure of Invention

The utility model aims to solve the defects of more procedures, long construction time, easy pollution of the oil layer by carrying fluid, high cost and the like when filling articles into the oil well in the prior art, and provide an underground release switch.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

an underground release switch comprises an upper joint, a clamping mechanism, an outer cylinder, a discharge port, a blocking joint, a release ejector rod and a spring, wherein the top of the upper joint is connected with an oil pipe; the locking mechanism comprises a plug, a pin, a lock ball, a protective cover, a release core and a stop ring, the top of the protective cover is connected with the plug through threads, the circumference of the lower part of the protective cover is provided with a through hole, the release core is arranged at the through hole and is arranged in the protective cover, the release core is T-shaped, the upper part of the release core is fixedly connected with the protective cover through the pin, the lower part of the release core is provided with the stop ring through threads, the lock ball is arranged in the through hole and is clamped on the stop table; the bottom of the locking mechanism is movably connected with a discharge port on the outer wall of the outer barrel, the bottom of the outer barrel is connected with a blocking joint through threads, a release ejector rod penetrates through the blocking joint and extends into the outer barrel, and a spring is sleeved on the lower portion of the release ejector rod.

Preferably, the pin is made of copper.

Preferably, the locking platform is arc-shaped.

Preferably, the diameter of the locking ball is smaller than the inner diameter of the through hole.

Preferably, the wall thickness of the shield is smaller than the diameter of the lock ball.

Preferably, the outer diameter of the upper part of the release core is equivalent to the inner diameter of the shield.

Preferably, the number of the discharge ports is 2, and the discharge ports are symmetrically arranged on two sides of the outer wall of the outer cylinder.

The utility model discloses the beneficial effect who produces does: the utility model discloses simple structure, release ejector pin striking kayser mechanism, the cavity intercommunication in discharge port and the oil pipe after kayser mechanism falls, it is intraductal that the filler gets into the oil well cover through the discharge port, lifts the tubular column and accomplishes the packing, and the filling method is swift, and labour saving and time saving saves the workover cost, reduces intensity of labour.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the utility model during impact.

Fig. 3 is a schematic structural view of the impact-back latch mechanism of the present invention.

FIG. 4 is an exploded view of the latch mechanism.

FIG. 5 is an exploded perspective view of the latch mechanism.

Wherein: 1. the locking device comprises an upper joint, 2, a locking mechanism, 201, a plug, 202, a pin, 203, a shield, 203-1, a through hole, 204, a locking ball, 205, a release core, 206, a retaining ring, 3, an outer cylinder, 301, a locking platform, 4, a discharge port, 5, a retaining joint, 6, a release ejector rod, 7 and a spring.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present invention will be described in further detail with reference to the accompanying drawings.

An underground release switch comprises an upper joint 1, a locking mechanism 2, an outer barrel 3, a discharge port 4, a blocking joint 5, a release ejector rod 6 and a spring 7, wherein the top of the upper joint 1 is connected with an oil pipe, the bottom of the upper joint 1 is connected with the top of the outer barrel 3 through threads, a locking platform 301 is arranged on the inner wall of the upper part of the outer barrel 3, and the locking mechanism 2 is installed at the locking platform 301; the locking mechanism 2 comprises a plug 201, a pin 202, a locking ball 204, a shield 203, a release core 205 and a retaining ring 206, the top of the shield 203 is connected with the plug 201 through threads, the circumference of the lower part of the shield 203 is provided with a through hole 203-1, the release core 205 is arranged in the shield 203 at the through hole 203-1, the release core 205 is T-shaped, the upper part of the release core 205 is fixedly connected with the shield 203 through the pin 202, the lower part of the release core 205 is provided with the retaining ring 206 through threads, the locking ball 204 is arranged in the through hole 203-1, and the locking ball 204 is clamped on a retaining table 301; the bottom of the locking mechanism 2 and the outer wall of the outer barrel 3 are movably connected with a discharge port 4, the bottom of the outer barrel 3 is connected with a blocking joint 5 through threads, a release ejector rod 6 penetrates through the blocking joint 5 and extends into the outer barrel 3, and a spring 7 is sleeved on the lower portion of the release ejector rod 6.

Preferably, the pin 202 is made of copper.

Preferably, the locking platform 301 is arc-shaped.

Preferably, the diameter of the locking ball 204 is smaller than the inner diameter of the through hole 203-1.

Preferably, the wall thickness of the shield 203 is smaller than the diameter of the locking ball 204.

Preferably, the outer diameter of the upper portion of the release core 205 is comparable to the inner diameter of the shield 203.

Preferably, the number of the discharge ports 4 is 2, and the discharge ports 4 are symmetrically arranged on both sides of the outer wall of the outer cylinder 3.

A downhole release switch is characterized in that a plug 201 is connected to the top of a shield 203 in a threaded mode, a release core 205 is connected with a baffle ring 206 in a threaded mode, the release core 205 is inserted into the shield 203, the release core 205 is T-shaped, the large-diameter portion of the release core 205 is in contact with the inner wall of the shield 203, the large-diameter portion of the release core 205 is blocked at a through hole 203-1, the release core 205 is fixed with the shield 203 through a pin 202, a locking ball 204 is placed into the through hole 203-1, a locking mechanism 2 is placed into an outer barrel 3 from the top of the outer barrel 3, the diameter of the locking ball 204 is larger than the wall thickness of the shield 203, the part, extending out of the shield 203, of the locking ball 204 is just clamped on a locking table 301 on the inner wall of the outer barrel 3, the whole locking mechanism 2 is installed in the outer barrel 3 at the moment, the top of the outer barrel 3 is connected with the upper portion of the outer barrel through a threaded connector 1, a release ejector rod 6 penetrates through a baffle connector 5, and the baffle connector 5 is connected with the bottom of the outer barrel 3 through threads.

After the assembly is completed, the release switch is connected to the lowest part of the oil pipe, the filler such as slurry, sand and the like is carried to the bottom of an oil well or a bridge plug, the filler is placed at the hard surface of the bottom of the well, the release ejector rod 6 moves upwards to compress the retarding spring 7, the upper end surface of the release ejector rod 6 impacts the stop ring 206, the pin 202 is cut off at the moment, the release core 205 moves upwards, the locking ball 204 retracts to the small diameter part of the release core 205 due to the fact that the diameter of the locking ball 204 is slightly smaller than the inner diameter of the through hole 203-1, the locking ball 204 falls to the bottom of the outer barrel 3 under the action of gravity of the filler carried in the oil pipe at the upper end, the filler carried in the oil pipe enters the annular space of the oil sleeve through the discharge port 4 at the moment, and the oil pipe is lifted to realize the filling of the carrier.

The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a release switch in pit, includes top connection, kayser mechanism, urceolus, discharge port, fender joint, release ejector pin and spring, its characterized in that: the top of the upper joint is connected with an oil pipe, the bottom of the upper joint is connected with the top of the outer barrel through threads, the inner wall of the upper part of the outer barrel is provided with a locking platform, and the locking platform is provided with the locking mechanism; the locking mechanism comprises a plug, a pin, a lock ball, a protective cover, a release core and a stop ring, the top of the protective cover is connected with the plug through threads, the circumference of the lower part of the protective cover is provided with a through hole, the release core is arranged at the through hole and is arranged in the protective cover, the release core is T-shaped, the upper part of the release core is fixedly connected with the protective cover through the pin, the lower part of the release core is provided with the stop ring through threads, the lock ball is arranged in the through hole and is clamped on the stop table; the bottom of the locking mechanism is movably connected with a discharge port on the outer wall of the outer barrel, the bottom of the outer barrel is connected with a blocking joint through threads, a release ejector rod penetrates through the blocking joint and extends into the outer barrel, and a spring is sleeved on the lower portion of the release ejector rod.

2. A downhole release switch according to claim 1, wherein: the pin is made of copper.

3. A downhole release switch according to claim 1, wherein: the locking platform is arc-shaped.

4. A downhole release switch according to claim 1, wherein: the diameter of the lock ball is smaller than the inner diameter of the through hole.

5. A downhole release switch according to claim 1, wherein: the wall thickness of the protective cover is smaller than the diameter of the lock ball.

6. A downhole release switch according to claim 1, wherein: the outer diameter of the upper part of the release core is equivalent to the inner diameter of the protective cover.

7. A downhole release switch according to claim 1, wherein: the discharge port be 2, and the discharge port symmetry is established in urceolus outer wall both sides.