CN110029961A - A kind of repeatedly activation bypass system and its application method - Google Patents
A kind of repeatedly activation bypass system and its application method Download PDFInfo
- Publication number
- CN110029961A CN110029961A CN201910169757.6A CN201910169757A CN110029961A CN 110029961 A CN110029961 A CN 110029961A CN 201910169757 A CN201910169757 A CN 201910169757A CN 110029961 A CN110029961 A CN 110029961A
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- ball
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- loop bar
- spring
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- 230000004913 activation Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000010276 construction Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 238000005553 drilling Methods 0.000 claims description 20
- 210000002445 nipple Anatomy 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 239000011796 hollow space material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000309551 Arthraxon hispidus Species 0.000 description 1
- 206010073162 Chance fracture Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Safety Valves (AREA)
Abstract
The present invention provides the bypass systems that one kind can be activated repeatedly, when carrying out plugging operation, leak hole is blocked by the first ball of throwing to build the pressure, when pressure is greater than the pulling force of spring, triggering loop bar slides into lowermost end under the action of sleeve and ball screw, at this time, first and second by-pass prots contraposition, leakage-stop liquid is injected along by-pass prot, the flow that is pumped into for increasing leakage-stop liquid at this time keeps pressure, the second ball, which is put into, after stopping fluid injection blocking the second by-pass prot, increasing, which builds the pressure, squeezes out the first ball from leak hole, subsequent the second ball of first ball and fall into collection basket, loop bar resets under the action of spring tension；Device provided by the invention, which can not only be realized not pulling out of hole, carries out the construction of plugging material, but also structure simple and flexible, control method are easy, and multiple activation can be realized in no material consumption, has very high application value.
Description
Technical field
It is more particularly to a kind of using simple pressure the present invention relates to petroleum well workover and underground work technical field
Strong and mechanical transmissioning technology can realize the bypass system repeatedly activated and its application method.
Background technique
When carrying out special operation in drilling well, completion practice, influenced by factors such as downhole instrument, screw rod, bit ports, often
It needs frequently to make a trip and switches drilling tool.Such as blocking construction, the choices such as plugging material granular size, concentration with slurry are limited, sternly
Ghost image rings plugging effect；When boring chance fracture hole development drop ply, then needs to pull out of hole and change the lower brill leak stopping such as drilling tool, removal bit port, block up
It pulls out of hole again after leaking successfully and switches normal drilling tool recovery drilling；Especially more drop ply well sections, round trip is frequent, when plugging operations
Between it is long, increase and the risks such as underground complicated, accident and well control occur.
In view of the above-mentioned problems, the prior art mainly adopts ball plug-hole, the pump impulse modes such as build the pressure be arranged, but it is existing
Structure is complicated and is difficult to control for ball plug-hole in technology, is unfavorable for actual production demand；
Therefore the bypass system that how to provide a kind of simple no material consumption of structure, control flexibly and accurately can repeatedly activate, it is
Those skilled in the art's urgent problem to be solved.
Summary of the invention
In view of this, being simple and convenient to operate the object of the present invention is to provide a kind of structure and accurately can repeatedly activate
Bypass system.
To achieve the above object, the present invention takes following technical scheme:
A kind of repeatedly activation bypass system, comprising: bypass short joint, switch valve system and collection system；
Bypass short joint head hub part has first connecting portion, and bottom end is provided with second connecting portion；Bypass short joint
Axis center is step-like through-hole, including stepped hole and through-hole, the stepped hole are set to the bypass short joint axis center upper half
Point, the through-hole is set to bypass short joint axis center lower half portion, and there is bypass short joint the partial sidewall of stepped hole to be arranged
There is the first by-pass prot, the switch valve system is set in the stepped hole；
The switch valve system includes spring, sleeve, loop bar, the first ball and the second rubber with sleeve shiding matching
Ball, the loop bar are the cylinder that hollow and bottom end has leak hole, are provided with the second by-pass prot on the loop bar side wall, described the
Two by-pass prots are extended to the inner wall of the stepped hole by the side-walls of the loop bar, and the loop bar top is fixed with washer, institute
It is identical as the stepped hole inner wall internal diameter to state washer outer diameter, internal diameter is identical as the internal diameter of the loop bar, the spring top connection
The first connecting portion bottom end, the spring bottom end connect the washer；
The collection system is hollow pipe nipple, and top connects the second connecting portion, and hollow space is provided with cage, institute
It states and is provided with cage hole on cage wall.
Further, the diameter of first ball is greater than the diameter of the leak hole, the diameter of second ball
Diameter greater than second by-pass prot and the diameter less than the leak hole.
Preferably, shiding matching is realized by ball screw between the sleeve and the loop bar.
The beneficial effect of above-mentioned optimal technical scheme is: ball screw can convert rotational motion to linear movement, simultaneously
Have the characteristics that high-precision, invertibity and efficient, it is important that ball screw has the frictional resistance of very little, makes swashing for bypass
More rapid sensitive living.
Preferably, when the spring is in contraction state, distance and institute of the loop bar bottom end to the stepped hole bottom end
The circle center distance for stating the center of circle to first by-pass prot of the second by-pass prot is equal.
Preferably, when the spring is in tensional state, the center of circle of second by-pass prot and first by-pass prot
The center of circle is overlapped.
The beneficial effect of above-mentioned optimal technical scheme is: by the control of distance, when in use without calculating the strong of pressurization
Degree, logical liquid are forced into the drawing force greater than spring, loop bar can be made to drop to most bottom under the sensitive rotary action of ball screw
End, and then align the second by-pass prot precisely with the first by-pass prot, control method is simple and efficient.
Preferably, second by-pass prot and first by-pass prot at least there are two and second by-pass prot and institute
The quantity for stating the first by-pass prot matches.
The present invention also provides a kind of application methods of repeatedly activation bypass system, comprising the following steps:
1) bypass short joint is connect with collection system, the lower end of collection system connects drill bit, and the upper end of bypass system connects
Enter well after connecting drilling rod, under be drilled into construction location in well, the first ball is put into drilling rod, back upper place drilling rod turn on pump follow
Ring, the first ball block leak hole, and pump pressure rises, and reduce pump speed；
2) for control pump speed to pressure is gradually applied in drilling rod, pressure acts on lower spring elongation, and loop bar moves down, and drives the
Two by-pass prots rotation is moved down to be overlapped with the first by-pass prot, realizes liquid injection；
3) inject after the completion of, the second ball is put into drilling rod, persistently build the pressure to the first ball squeeze out leak hole, second
Ball is fallen into cage together with the first ball, and inside loses pressure, and loop bar resets under spring tension effect, completes to apply
Work.
Further, the quantity and the quantity phase of second by-pass prot of the second ball put into the step 2)
Together.
Compared with prior art, technical solution of the present invention, which has the effect that, provides a kind of side that can repeatedly activate
Way system and its application method, when being worked, pitching pass blocking leakage builds the pressure, when pressure is greater than the pulling force of spring, triggering set
Bar slides into lowermost end under the action of sleeve and ball screw, at this point, the first and second by-pass prots align, leakage-stop liquid is along bypass
Hole injection, the flow that is pumped into for increasing leakage-stop liquid at this time keep pressure；Pitching, which continues to build the pressure, when injection is completed makes former ball
It is fallen in cage with rear investment ball, pressure reduces, and loop bar resets under the action of spring tension；Device provided by the invention
It can not only realize not pulling out of hole and carry out the construction of plugging material, but also structure is simple, control method is easy flexibly, it can be achieved that repeatedly
Activation has very high application value.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of original state overall structure figure of repeatedly activation bypass system embodiment 1 of the present invention；
Fig. 2 is a kind of working condition overall structure figure of repeatedly activation bypass system embodiment 2 of the present invention；
Fig. 3 is overall structure figure after a kind of working condition of repeatedly activation bypass system embodiment 2 of the present invention；
Wherein, 1, bypass short joint, 11, first connecting portion, 12, second connecting portion, 13, stepped hole, 14, through-hole, 15, first
By-pass prot, 2, switch valve system, 21, spring, 22, sleeve, 23, loop bar, 231, leak hole, the 232, second by-pass prot, 233, washer,
24, the first ball, the 25, second ball, 3, collection system, 31, cage, 311, cage hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
As shown in Fig. 1, a kind of original state of multiple activation bypass system, comprising: bypass short joint 1, switch valve system 2
With collection system 3；
1 head hub part of bypass short joint has first connecting portion 11, and bottom end is provided with second connecting portion 12；Bypass short joint
1 axis center is step-like through-hole, including stepped hole 13 and through-hole 14, stepped hole 13 are set to the 1 axis center upper half of bypass short joint
Point, through-hole 14 is set to 1 axis center lower half portion of bypass short joint, and there is bypass short joint 1 partial sidewall of stepped hole 13 to be provided with
First by-pass prot 15, switch valve system 2 are set in stepped hole 13；
Switch valve system 2 include spring 21, sleeve 22, with the loop bar 23 of 22 shiding matching of sleeve, loop bar 23 be it is hollow and
Bottom end has the cylinder of leak hole 231, is provided with the second by-pass prot 232 on 23 side wall of loop bar, the second by-pass prot 232 is by loop bar 23
Side-walls extend at the inner wall of stepped hole 13,23 top of loop bar is fixed with washer 233,233 outer diameter of washer and stepped hole 13
Inner wall internal diameter is identical, and internal diameter is identical as the internal diameter of loop bar 23, and 21 top of spring connects 11 bottom end of first connecting portion, 21 bottom end of spring
Connect washer 233；
Collection system 3 is hollow pipe nipple, and top connects second connecting portion 12, and hollow space is provided with cage 31, cage
Cage hole 311 is provided on 31 walls.
In order to further optimize the above technical scheme, sliding is realized by ball screw between sleeve 22 and loop bar 23
Match.
In order to further optimize the above technical scheme, when spring 21 is in contraction state, 23 bottom end of loop bar to stepped hole 13
The distance of bottom end is equal with the circle center distance of the center of circle of the second by-pass prot 232 to the first by-pass prot 15.
In order to further optimize the above technical scheme, when spring 21 is in tensional state, the center of circle of the second by-pass prot 232 with
The center of circle of first by-pass prot 15 is overlapped.
In order to further optimize the above technical scheme, the second by-pass prot 232 and the first by-pass prot 15 at least there are two and
The quantity of second by-pass prot 232 and the first by-pass prot 15 matches.
Embodiment 2
As shown in Fig. 2, a kind of working condition of multiple activation bypass system, comprising: bypass short joint 1, switch valve system 2
With collection system 3；
1 head hub part of bypass short joint has first connecting portion 11, and bottom end is provided with second connecting portion 12；Bypass short joint
1 axis center is step-like through-hole, including stepped hole 13 and through-hole 14, stepped hole 13 are set to the 1 axis center upper half of bypass short joint
Point, through-hole 14 is set to 1 axis center lower half portion of bypass short joint, and there is bypass short joint 1 partial sidewall of stepped hole 13 to be provided with
First by-pass prot 15, switch valve system 2 are set in stepped hole 13；
Switch valve system 2 include spring 21, sleeve 22, with the loop bar 23 of 22 shiding matching of sleeve, the first ball 24 and
Second ball 25, loop bar 23 are the cylinder that hollow and bottom end has leak hole 231, are provided with the second bypass on 23 side wall of loop bar
Hole 232, the second by-pass prot 232 are extended to the inner wall of stepped hole 13 by the side-walls of loop bar 23, and 23 top of loop bar is fixed with pad
Circle 233,233 outer diameter of washer is identical as 13 inner wall internal diameter of stepped hole, and internal diameter is identical as the internal diameter of loop bar 23, the connection of 21 top of spring
11 bottom end of first connecting portion, 21 bottom end of spring connect washer 233；
Collection system 3 is hollow pipe nipple, and top connects second connecting portion 12, and hollow space is provided with cage 31, cage
Cage hole 311 is provided on 31 walls.
In order to further optimize the above technical scheme, the diameter of the first ball 24 is greater than the diameter 231 of leak hole, the second rubber
The diameter of glueballs 25 is greater than the diameter of the second by-pass prot 232 and is less than the diameter 231 of leak hole.
In order to further optimize the above technical scheme, sliding is realized by ball screw between sleeve 22 and loop bar 23
Match.
In order to further optimize the above technical scheme, when spring 21 is in contraction state, 23 bottom end of loop bar to stepped hole 13
The distance of bottom end is equal with the circle center distance of the center of circle of the second by-pass prot 232 to the first by-pass prot 15.
In order to further optimize the above technical scheme, when spring 21 is in tensional state, the center of circle of the second by-pass prot 232 with
The center of circle of first by-pass prot 15 is overlapped.
In order to further optimize the above technical scheme, the second by-pass prot 232 and the first by-pass prot 15 at least there are two and
The quantity of second by-pass prot 232 and the first by-pass prot 15 matches.
Embodiment 3
As shown in Fig. 3, restore the state of initial position after a kind of multiple activation bypass system work, comprising: bypass is short
Section 1, switch valve system 2 and collection system 3；
1 head hub part of bypass short joint has first connecting portion 11, and bottom end is provided with second connecting portion 12；Bypass short joint
1 axis center is step-like through-hole, including stepped hole 13 and through-hole 14, stepped hole 13 are set to the 1 axis center upper half of bypass short joint
Point, through-hole 14 is set to 1 axis center lower half portion of bypass short joint, and there is bypass short joint 1 partial sidewall of stepped hole 13 to be provided with
First by-pass prot 15, switch valve system 2 are set in stepped hole 13；
Switch valve system 2 include spring 21, sleeve 22, with the loop bar 23 of 22 shiding matching of sleeve, the first ball 24 and
Second ball 25, loop bar 23 are the cylinder that hollow and bottom end has leak hole 231, are provided with the second bypass on 23 side wall of loop bar
Hole 232, the second by-pass prot 232 are extended to the inner wall of stepped hole 13 by the side-walls of loop bar 23, and 23 top of loop bar is fixed with pad
Circle 233,233 outer diameter of washer is identical as 13 inner wall internal diameter of stepped hole, and internal diameter is identical as the internal diameter of loop bar 23, the connection of 21 top of spring
11 bottom end of first connecting portion, 21 bottom end of spring connect washer 233, and the first ball 24 and the second ball 25 are fallen is as collected
In system；
Collection system 3 is hollow pipe nipple, and top connects second connecting portion 12, and hollow space is provided with cage 31, cage
Cage hole 311 is provided on 31 walls.
In order to further optimize the above technical scheme, the diameter of the first ball 24 is greater than the diameter 231 of leak hole, the second rubber
The diameter of glueballs 25 is greater than the diameter of the second by-pass prot 232 and is less than the diameter 231 of leak hole.
In order to further optimize the above technical scheme, sliding is realized by ball screw between sleeve 22 and loop bar 23
Match.
In order to further optimize the above technical scheme, when spring 21 is in contraction state, 23 bottom end of loop bar to stepped hole 13
The distance of bottom end is equal with the circle center distance of the center of circle of the second by-pass prot 232 to the first by-pass prot 15.
In order to further optimize the above technical scheme, when spring 21 is in tensional state, the center of circle of the second by-pass prot 232 with
The center of circle of first by-pass prot 15 is overlapped.
In order to further optimize the above technical scheme, the second by-pass prot 232 and the first by-pass prot 15 at least there are two and
The quantity of second by-pass prot 232 and the first by-pass prot 15 matches.
Embodiment 4
The present invention also provides a kind of change procedure by embodiment 1-3, i.e., multiple activation bypass system of the invention
Application method, specifically includes the following steps:
1) bypass short joint 1 is connect with collection system 3, the lower end of collection system 3 connects drill bit, bypass system 1 it is upper
End connect drilling rod after enter well, under be drilled into construction location in well, the first ball 24 is put into drilling rod, back upper place drilling rod open
Pump circulation, the first ball 24 block leak hole 231, and pump pressure rises, and reduce pump speed；
2) control pump speed is to pressure is gradually applied in drilling rod, since the first ball 24 blocks leak hole 231,23 internal pressure of loop bar
Power increases, and spring 21 extends under pressure, and loop bar 23 turns to move down in the cooperation backspin of sleeve 22, drives the second bypass
The rotation of hole 232 is moved down to be overlapped with the first by-pass prot 15, realizes liquid injection；
3) after the completion of injecting, the second ball 25 is put into drilling rod, under fluid shear effect, the second ball 25
The second by-pass prot 232 is blocked, loop bar internal pressure kept rises, and when pressure reaches certain intensity, the first ball 24 is squeezed
Leak hole 231 out lose hyperbaric environment in loop bar 23, and the second ball 25 and the first ball 24 are fallen into together in cage 31, and
Loop bar 23 resets under 21 pulling force effect of spring, completes construction.
Further, the quantity of the second ball put into step 2) is identical as the quantity of second by-pass prot.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of repeatedly activation bypass system characterized by comprising bypass short joint (1), switch valve system (2) and collection system
It unites (3)；
Bypass short joint (1) the head hub part has first connecting portion (11), and bottom end is provided with second connecting portion (12)；It is other
Logical pipe nipple (1) axis center is step-like through-hole, including stepped hole (13) and through-hole (14), and the stepped hole (13) is set to described
Bypass short joint (1) axis center top half, the through-hole (14) are set to the bypass short joint (1) axis center lower half portion, other
Logical pipe nipple (1) there is the partial sidewall of stepped hole (13) to be provided with the first by-pass prot (15), and the switch valve system (2) is set to
In the stepped hole (13)；
The switch valve system (2) includes spring (21), the loop bar (23) of sleeve (22) and sleeve (22) shiding matching, first
Ball (24) and the second ball (25), the loop bar (23) is the cylinder that hollow and bottom end has leak hole (231), described
Be provided with the second by-pass prot (232) on loop bar (23) side wall, second by-pass prot (232) by the loop bar (23) side-walls
It extends at the inner wall of the stepped hole (13), loop bar (23) top is fixed with washer (233), and the washer (233) is outside
Diameter is identical as the stepped hole (13) inner wall internal diameter, and internal diameter is identical as the internal diameter of the loop bar (23), spring (21) top
The first connecting portion (11) bottom end is connected, spring (21) bottom end connects the washer (233)；
The collection system (3) is hollow pipe nipple, and top connects the second connecting portion (12), and hollow space is provided with cage
(31), cage hole (311) are provided on cage (31) wall.
2. a kind of repeatedly activation bypass system according to claim 1, which is characterized in that first ball (24)
Diameter is greater than the diameter (231) of the leak hole, and the diameter of second ball (25) is greater than second by-pass prot (232)
Diameter and the diameter (231) for being less than the leak hole.
3. a kind of repeatedly activation bypass system according to claim 2, which is characterized in that the sleeve (22) and the set
Shiding matching is realized by ball screw between bar (23).
4. a kind of repeatedly activation bypass system according to claim 3, which is characterized in that the spring (21), which is in, shrinks
When state, the distance of loop bar (23) bottom end to the stepped hole (13) bottom end and the center of circle of second by-pass prot (232)
Circle center distance to first by-pass prot (15) is equal.
5. a kind of repeatedly activation bypass system according to claim 4, which is characterized in that the spring (21), which is in, to be stretched
When state, the center of circle of second by-pass prot (232) is overlapped with the center of circle of first by-pass prot (15).
6. a kind of repeatedly activation bypass system according to claim 5, which is characterized in that second by-pass prot (232)
With first by-pass prot (15) at least there are two and second by-pass prot (232) and first by-pass prot (15) number
Amount matches.
7. a kind of application method of repeatedly activation bypass system, which comprises the following steps:
1) bypass short joint is connect with collection system, the lower end of collection system connects drill bit, and the upper end of bypass system connects
Enter well after drilling rod, under be drilled into construction location in well, the first ball is put into drilling rod, back upper place drilling rod turn on pump circulation, the
One ball blocks leak hole, and pump pressure rises, and reduces pump speed；
2) control pump speed acts on lower spring elongation to pressure, pressure is gradually applied in drilling rod, and loop bar is moved down, driven by the of second
Through-hole rotation is moved down to be overlapped with the first by-pass prot, realizes liquid injection；
3) after the completion of injecting, the second ball is put into drilling rod, is persistently built the pressure and is squeezed out leak hole, the second rubber to the first ball
Ball is fallen into cage together with the first ball, and inside loses pressure, and loop bar resets under spring tension effect, completes construction.
8. a kind of application method of repeatedly activation bypass system according to claim 7, which is characterized in that the step 2)
The quantity of second ball of middle investment is identical as the quantity of second by-pass prot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910169757.6A CN110029961A (en) | 2019-03-06 | 2019-03-06 | A kind of repeatedly activation bypass system and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910169757.6A CN110029961A (en) | 2019-03-06 | 2019-03-06 | A kind of repeatedly activation bypass system and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110029961A true CN110029961A (en) | 2019-07-19 |
Family
ID=67235077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910169757.6A Pending CN110029961A (en) | 2019-03-06 | 2019-03-06 | A kind of repeatedly activation bypass system and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110029961A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439424A (en) * | 2022-02-16 | 2022-05-06 | 成都德维石油技术服务有限责任公司 | Bypass valve capable of being opened and closed repeatedly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080223581A1 (en) * | 2006-11-09 | 2008-09-18 | Beall Clifford H | Downhole Barrier Valve |
| CN102953708A (en) * | 2011-08-31 | 2013-03-06 | 中国石油化工股份有限公司 | Bypass short joint capable of being activated and circulated repeatedly |
| CN105422041A (en) * | 2014-09-18 | 2016-03-23 | 新疆格瑞迪斯石油技术股份有限公司 | Multiple-activation bypass system |
| CN106337669A (en) * | 2016-11-02 | 2017-01-18 | 中国石油化工股份有限公司 | The bypass valve capable of repeating switch |
| CN109138877A (en) * | 2018-08-15 | 2019-01-04 | 博德世达（天津）能源科技有限公司 | Fixed ball seat circulating valve, using its drilling equipment and drilling well, blocking method |
-
2019
- 2019-03-06 CN CN201910169757.6A patent/CN110029961A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080223581A1 (en) * | 2006-11-09 | 2008-09-18 | Beall Clifford H | Downhole Barrier Valve |
| CN102953708A (en) * | 2011-08-31 | 2013-03-06 | 中国石油化工股份有限公司 | Bypass short joint capable of being activated and circulated repeatedly |
| CN105422041A (en) * | 2014-09-18 | 2016-03-23 | 新疆格瑞迪斯石油技术股份有限公司 | Multiple-activation bypass system |
| CN106337669A (en) * | 2016-11-02 | 2017-01-18 | 中国石油化工股份有限公司 | The bypass valve capable of repeating switch |
| CN109138877A (en) * | 2018-08-15 | 2019-01-04 | 博德世达（天津）能源科技有限公司 | Fixed ball seat circulating valve, using its drilling equipment and drilling well, blocking method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439424A (en) * | 2022-02-16 | 2022-05-06 | 成都德维石油技术服务有限责任公司 | Bypass valve capable of being opened and closed repeatedly |
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Application publication date: 20190719 |
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| WD01 | Invention patent application deemed withdrawn after publication |