CN107542426A - A kind of control valve for being used to prevent oil well injection - Google Patents
A kind of control valve for being used to prevent oil well injection Download PDFInfo
- Publication number
- CN107542426A CN107542426A CN201710950556.0A CN201710950556A CN107542426A CN 107542426 A CN107542426 A CN 107542426A CN 201710950556 A CN201710950556 A CN 201710950556A CN 107542426 A CN107542426 A CN 107542426A
- Authority
- CN
- China
- Prior art keywords
- glue core
- hole
- oil pipe
- valve base
- inwall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a kind of control valve for being used to prevent oil well injection, including bracket and cover plate, blind hole is provided with the side of bracket, an inclined-plane A is provided with the middle part of adjusting rod, cover plate both ends are fixed with the extension parallel with bracket side, and the middle part of extension is the Flexible Connector of arc, and the adsorption tank connected with blind hole is provided with the side wall of bracket, the movable end of jacking bar is provided with the inclined-plane B being engaged with inclined-plane A, and the movable end of jacking bar is placed in blind hole through adsorption tank.Inclined-plane A is engaged with inclined-plane B; jacking bar is displaced outwardly; jacking bar drives two connecting rods to continue to move along; and the other end of the two connecting rods and Flexible Connector of arc is be hinged that a tension force is imposed to it simultaneously; so that the Flexible Connector of arc produces deformation, i.e., linear is changed into by arc so that cable has enough receiving spaces; while ensure that multiple cables are laid simultaneously, ensure defencive function of the cable bridge to cable.
Description
Technical field
The present invention relates to field of petroleum exploitation, in particular to a kind of control valve for being used to prevent oil well injection.
Background technology
Oil field will be repaired during actual well workover to sleeve pipe at present, need first to take out oil pipe, but lower elevator
When lifting by crane oil pipe, the easily ring gasket groove generation to tubing head four-way is collided with, and damages ring gasket groove, simultaneously because underground
Residual pressure, natural gas or crude oil leakage occur often, or even well kick, blowout phenomenon occur.Brought to well workover production serious
Safety hazards, be insoluble problem all the time during oil well repairing operation.Therefore, designing one kind can either pacify
Full protection ring gasket groove, and can enough automatically controls occurs well kick, the device of blowout phenomenon suddenly, while can be cost-effective,
It is production and is solved the problems, such as using unit common need.
The content of the invention
It is an object of the invention to provide a kind of control valve for being used to prevent oil well injection, reach control and well occurs suddenly
Gush, the purpose of blowout.
The purpose of the present invention is achieved through the following technical solutions：
A kind of control valve for being used to prevent oil well injection, include the upper valve base and lower valve base of mutual clamping, in upper valve base
Portion is provided with through hole, and the lower through-hole coaxial with upper through hole is provided with lower valve base, and the upper through hole, lower through-hole and oil pipe gap are matched somebody with somebody
Close, the tubular rubber core of both ends protrusion and medial recess, the minimum of the glue core are hingedly connected with the inwall of the upper valve base
Internal diameter is less than the external diameter of the oil pipe, multiple hemispheric adsorption tanks is arranged at intervals with the inwall of the glue core, described
Blind hole is provided with the both sides inwall of lower through-hole, is slided in blind hole and is provided with fixture block, support bar runs through fixture block, and one end of support bar
It is connected by spring with blind via bottom, one end of support bar is connected by the outer wall of roller and oil pipe.During well workover, it is necessary to
First oil pipe is lifted by crane, but easily the ring gasket groove generation to tubing head four-way is collided with, and damages ring gasket groove, simultaneously because
The residual pressure of underground, crude oil leakage occurs often, or even well kick, blowout phenomenon occur；Well workover of the present invention at well head is set
It is standby above to add the upper valve base and lower valve base of mutual clamping, and the glue core being hinged on upper valve base inwall is brought into close contact with oil pipe,
The separation located up and down to well head is realized, when blowout or well kick occur suddenly, liquid or the gas pressure effect of underground are logical
The bottom that lower through-hole is applied to glue core is crossed, and glue core is the tubular structure that both ends protrude medial recess, glue core bottom is under pressure
Can occur glue core bottom interior wall to drawing close on the inwall of lower valve base and locally depart from oil pipe afterwards, while the top of glue core
The epimere of the certain deformation of generation, i.e. glue core locally contacts to make up the contact loss of glue core lower end and oil pipe with oil pipe, in glue core
Inwall on multiple hemispheric adsorption tanks for opening up be brought into close contact using air pressure adsorption principle with oil-pipe external wall, be always ensured that
Contact in the middle part of glue core with oil pipe, avoids crude oil when well kick or blowout from leaking；
Wherein oil pipe can often produce vibration in lifting, that is, produce the bounce of radial direction, while can drive the side of glue core
Moved in the same direction with oil pipe, cause the contact surface between the opposite side and oil pipe of glue core to reduce, easily cause seal failure, the present invention exists
The both sides inwall of lower through-hole offers blind hole, and blind hole inner bracing piece can be done in horizontal direction under the compression or stretching of spring
Linear motion, and influence of the rolling friction to oil pipe caused by the mutual motion between roller and oil pipe is smaller, therefore work as oil pipe
When vibration produces, the side outer wall of oil pipe can produce extruding to the roller of homonymy therewith, while drive fixture block to be slided in blind hole,
Spring produces compressive deformation, and an elastic force in opposite direction with extruding force is produced when replying deformation and is squeezed with eliminating caused by oil pipe
Vibrated caused by pressure, ensure the stress balance of oil pipe both sides, avoid oil-pipe external wall from departing from glue core.
Further, in addition to bouncing ball, the bouncing ball are fixed on the recess of the glue outer core, and and lower valve base
Inwall connection.Glue core is contacted by bouncing ball with lower valve base inwall so that glue core bottom crude oil in by sleeve pipe is impacted
And when deforming upon, accelerate glue core top using the deformation of bouncing ball itself certain deformation occur that glue core lower end is made up with this
Contact loss, prevent in the middle part of glue core occurring crack between oil pipe and causing crude oil leakage.
The present invention compared with prior art, has the following advantages and advantages：
For the present invention when blowout or well kick occur suddenly, the liquid or gas pressure of underground act through lower through-hole work
The bottom of glue core is used, and glue core is the tubular structure that both ends protrude medial recess, glue core bottom can be to lower valve after being under pressure
Drawn close on the inwall of seat, that is, glue core bottom interior wall occur and locally depart from oil pipe, while a setting occurs for the top of glue core
Become, i.e., the epimere of glue core locally contacts to make up the contact loss of glue core lower end and oil pipe with oil pipe, is opened on the inwall of glue core
If multiple hemispheric adsorption tanks be brought into close contact using air pressure adsorption principle with oil-pipe external wall, be always ensured that in the middle part of glue core with
The contact of oil pipe, crude oil when well kick or blowout is avoided to leak；Glue core is contacted by bouncing ball with lower valve base inwall so that
Glue core bottom in by sleeve pipe the impact of crude oil and when deforming upon, utilize the deformation of bouncing ball itself to accelerate glue core top hair
Raw certain deformation makes up the contact loss of glue core lower end with this, prevents occurring crack between oil pipe in the middle part of glue core and cause original
Oil leakage.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention；
Mark and corresponding parts title in accompanying drawing：
1- bouncing balls, 2- upper valve bases, 3- glue core, 4- oil pipes, the upper through holes of 5-, 6- adsorption tanks, 7- lower valve bases, 8- lower through-holes,
9- rollers, 10- support bars, 11- fixture blocks, 12- springs.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in figure 1, the present embodiment includes the upper valve base 2 and lower valve base 6 of mutual clamping, it is provided with the middle part of upper valve base 2
Through hole 5, is provided with the lower through-hole 8 coaxial with upper through hole 5 on lower valve base 6, and the upper through hole 5, lower through-hole 8 and the gap of oil pipe 4 are matched somebody with somebody
Close, the tubular rubber core 3 of both ends protrusion and medial recess is hingedly connected with the inwall of the upper valve base 2, the glue core 3 is most
Small internal diameter is less than the external diameter of the oil pipe 4, and multiple hemispheric adsorption tanks 6 are arranged at intervals with the inwall of the glue core 3,
Blind hole is provided with the both sides inwall of the lower through-hole 5, is slided in blind hole and is provided with fixture block 11, support bar 10 runs through fixture block 11, and
One end of support bar 10 is connected by spring 12 with blind via bottom, and one end of support bar 10 is connected by the outer wall of roller 9 and oil pipe 4
Connect., it is necessary to first lift by crane oil pipe 4 during well workover, but easily the ring gasket groove generation to 4 four-ways of oil pipe is collided with,
Ring gasket groove is damaged, simultaneously because the residual pressure of underground, occurs crude oil leakage often, or even well kick, blowout phenomenon occurs；
The present invention adds the upper valve base 2 and lower valve base 6 of mutual clamping on the workover rig at well head, and is hinged in upper valve base 2
Glue core 3 on wall is brought into close contact with oil pipe 4, realizes the separation located up and down to well head, when blowout or well kick occur suddenly, well
Under liquid or gas pressure act through the bottom that lower through-hole 8 is applied to glue core 3, and to be that both ends protrude middle part recessed for glue core 3
Sunken tubular structure, the bottom of glue core 3 the bottom interior wall office of glue core 3 can occur after being under pressure to drawing close on the inwall of lower valve base 6
Portion departs from oil pipe 4, while certain deformation occurs for the top of glue core 3, i.e. the epimere of glue core 3 locally contacted with oil pipe 4 with
The contact loss of the lower end of glue core 3 and oil pipe 4 is made up, the multiple hemispheric adsorption tanks 6 opened up on the inwall of glue core 3 are using greatly
Air pressure absorption principle is brought into close contact with the outer wall of oil pipe 4, is always ensured that the middle part contact with oil pipe 4 of glue core 3, is avoided well kick or well
Crude oil leaks during spray；
Wherein oil pipe 4 can often produce vibration in lifting, that is, produce the bounce of radial direction, while can drive the one of glue core 3
Side is moved in the same direction with oil pipe 4, is caused the contact surface between the opposite side of glue core 3 and oil pipe 4 to reduce, is easily caused seal failure, this
Invention offers blind hole in the both sides inwall of lower through-hole, and blind hole inner bracing piece 10 can do water under the compression or stretching of spring 12
Square upward linear motion, and influence of the rolling friction to oil pipe 4 caused by the mutual motion between roller 9 and oil pipe 4 compared with
It is small, therefore when oil pipe 4 vibrates and produced, the side outer wall of oil pipe 4 can produce extruding to the roller 9 of homonymy therewith, drive simultaneously
Fixture block 11 slides in blind hole, spring 12 produce compressive deformation, when replying deformation produce one with extruding force in the opposite direction
Elastic force ensures the stress balance of the both sides of oil pipe 4 to eliminate caused by extruding force caused by oil pipe 4 vibration, avoid the outer wall of oil pipe 4 with
Glue core 3 departs from.
Also include bouncing ball 1, the bouncing ball 1 is fixed on the recess of the outer wall of glue core 3, and with lower valve base 6
Wall connects.Glue core 3 is contacted by bouncing ball 1 with the inwall of lower valve base 6 so that the bottom of glue core 3 crude oil in by sleeve pipe is impacted
And when deforming upon, accelerate glue core 3 top using the deformation of bouncing ball 1 itself certain deformation occur that glue core 3 is made up with this
The contact loss of lower end, prevent occurring crack between the middle part of glue core 3 and oil pipe 4 and cause crude oil leakage.
As having preferably, the section of bouncing ball 1 is provided in round or ellipse so that presses one end of bouncing ball 1
While contracting deformation, its other end then occurs to expand deformation, and then timely responds to the epimere of glue core 3, is quickly connect with oil pipe 4
Touch, reduce the possibility of crude oil leakage.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (2)
1. a kind of control valve for being used to prevent oil well injection, including the upper valve base (2) of mutual clamping and lower valve base (7), in upper valve
Through hole (5) is provided with the middle part of seat (2), the lower through-hole (8) coaxial with upper through hole (5), the upper through hole are provided with lower valve base (7)
(5), lower through-hole (8) coordinates with oil pipe (4) gap, it is characterised in that：Two are hingedly connected with the inwall of the upper valve base (2)
Distal process goes out and the tubular rubber core of medial recess (3), and the minimum diameter of the glue core (3) is less than the external diameter of the oil pipe (4), in institute
State and multiple hemispheric adsorption tanks (6) are arranged at intervals with the inwall of glue core (3), on the both sides inwall of the lower through-hole (5)
Blind hole is provided with, is slided in blind hole and is provided with fixture block (11), support bar (10) runs through fixture block (11), and one end of support bar (10) leads to
Cross spring (12) to be connected with blind via bottom, one end of support bar (10) is connected by roller (9) with the outer wall of oil pipe (4).
A kind of 2. control valve for being used to prevent oil well injection according to claim 1, it is characterised in that：Also include bouncing ball
(1), the bouncing ball (1) is fixed on the recess of glue core (3) outer wall, and is connected with the inwall of lower valve base (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710950556.0A CN107542426A (en) | 2017-10-13 | 2017-10-13 | A kind of control valve for being used to prevent oil well injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710950556.0A CN107542426A (en) | 2017-10-13 | 2017-10-13 | A kind of control valve for being used to prevent oil well injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107542426A true CN107542426A (en) | 2018-01-05 |
Family
ID=60967100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710950556.0A Withdrawn CN107542426A (en) | 2017-10-13 | 2017-10-13 | A kind of control valve for being used to prevent oil well injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107542426A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552652A (en) * | 2019-08-05 | 2019-12-10 | 大庆市普庆密封材料配件有限公司 | carbon silica gel self-sealing core for well drilling |
-
2017
- 2017-10-13 CN CN201710950556.0A patent/CN107542426A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552652A (en) * | 2019-08-05 | 2019-12-10 | 大庆市普庆密封材料配件有限公司 | carbon silica gel self-sealing core for well drilling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170328169A1 (en) | Downhole occluder, pressurized sucker rod and operation technique to repair oil pipes | |
| CN107542426A (en) | A kind of control valve for being used to prevent oil well injection | |
| CN204663456U (en) | A kind of casing repairing oil pipe that is used for lifts by crane blowout prevention valve | |
| CN107989569A (en) | A kind of coiled tubing dynamic sealing device | |
| CN112302563B (en) | Ultrashort-clamping-distance water injection sand prevention packer and operation method thereof | |
| CN110735609A (en) | Use method of petroleum industrial devices | |
| CN206378243U (en) | Manometric switching device | |
| CN204627505U (en) | A kind of blowout prevention well repairing device | |
| CN207598200U (en) | A kind of expansion tube section construction hydraulic oil cylinder device | |
| CN107842335A (en) | A kind of oil well blowout-prevention structure | |
| CN203603818U (en) | Low snubbing operation device | |
| CN204627504U (en) | A kind of peupendicular hole oil pipe lifting preventer | |
| CN104790896A (en) | Adjustable blowout prevention valve for oil pipe hoisting | |
| CN106593340B (en) | High-pressure shallow totally-enclosed drilling plug device and using method thereof | |
| CN107587858A (en) | A kind of anti-spraying mechanism of when repairing horizontal well | |
| CN210152602U (en) | Underground cementing device | |
| CN102322230A (en) | Centering device | |
| CN202391354U (en) | Centralizer | |
| CN104727774A (en) | Wellhead blowout preventer for well repair | |
| CN206754034U (en) | A kind of hydraulic cylinder | |
| CN2937463Y (en) | Controllable expansion packer | |
| CN201412111Y (en) | Well cementing sliding sleeve device | |
| CN205743818U (en) | Wellhead blowout preventer | |
| CN212454363U (en) | But reverse circulation check valve of switch | |
| CN104790897A (en) | Well repair blowout preventer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180105 |
|
| WW01 | Invention patent application withdrawn after publication |