CN105422041A - Multiple-activation bypass system - Google Patents
Multiple-activation bypass system Download PDFInfo
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- CN105422041A CN105422041A CN201410476368.5A CN201410476368A CN105422041A CN 105422041 A CN105422041 A CN 105422041A CN 201410476368 A CN201410476368 A CN 201410476368A CN 105422041 A CN105422041 A CN 105422041A
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- bypass
- hole
- ball
- sliding sleeve
- cage
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Abstract
The invention discloses a multiple-activation bypass system. The multiple-activation bypass system comprises a bypass pup joint and a ball basket pup joint which are connected. A spring and a slide sleeve are arranged in a first stepped hole of the bypass pup joint. The side wall of the bypass pup joint is provided with at least one circle of first bypass holes, the side wall of the slide sleeve is provided with at least one circle of second bypass holes, and a ball basket in a second stepped hole of the ball basket pup joint. After a valve opening ball is thrown into the first stepped hole, the slide sleeve moves downwards through low-pump-stroke pressure holding so that the first bypass holes can be opened, then leakage stoppage slurry is pumped into the first stepped hole and enters a leakage layer from the first bypass holes, two valve closing balls are thrown into the bypass pup joint after leakage stopping construction is completed, pressure holding is performed after the valve closing balls reach the second bypass holes, the valve opening ball is shorn to penetrate a center hole of a ball base, the valve opening ball and the valve closing balls fall into the ball basket, and the system returns to the original shape. According to the system, only one valve opening ball and two valve closing balls need to be thrown into the first stepped hole, and leakage stopping construction can be performed many times without pulling a drill out of a hole.
Description
Technical field
The present invention relates to petroleum well workover and underground work technical field, espespecially one repeatedly activates bypass system.
Background technology
When carrying out special operation in drilling well, completion practice, affect by factors such as downhole instrument, screw rod, bit ports, frequent needs frequently make a trip and switch drilling tool.As blocking construction, the choices such as loss circulation material granular size, concentration with slurry are limited, have a strong impact on plugging effect; Bore and meet seam hole when growing drop ply, then need trip-out to change drilling tool, remove bit port etc. under bore leak stopping, pull out of hole again after leak stopping success and switch normal drilling tool and recover to creep into; Particularly many drop plies well section, round trip is frequent, and the plugging operations time is long, adds and down-hole complexity, accident and well control equivalent risk occur.
Summary of the invention
The object of the present invention is to provide one repeatedly to activate bypass system, when leakage occurs in drilling process for it, can realize not pulling out of hole and can repeatedly carry out high concentration, bulky grain loss circulation material and squeeze method blocking construction.
To achieve these goals, technical solution of the present invention is: one repeatedly activates bypass system, comprising bypass short joint, described bypass short joint is provided with the first small top and big bottom shoulder hole in axle center place, spring and sliding sleeve is provided with in described first shoulder hole, the lower end of described spring is against on the step surface in the first shoulder hole, end in contact under the upper end of described spring and sliding sleeve, the sidewall of described bypass short joint is provided with the by-pass prot of at least one circle first, the sidewall of described sliding sleeve is provided with the by-pass prot of at least one circle second, when sliding sleeve moves downward under external force, each second by-pass prot can communicate with each first by-pass prot, described sliding sleeve inner chamber is provided with ball seat in the below of the second by-pass prot, described ball seat center is provided with the centre bore communicated with the first shoulder hole, described sliding sleeve inner chamber is provided with at least one valve opening ball that can sliding sleeve be driven under external force to move down and at least one pair of pass valve ball valve opening ball top can being crossed centre bore above ball seat, the lower end of described bypass short joint connects cage pipe nipple, described cage pipe nipple is provided with the second small top and big bottom shoulder hole in axle center place, the uncovered cage in upper end is provided with in described second shoulder hole, described cage lower end is against on the step surface in the second shoulder hole.
The present invention repeatedly activates bypass system, wherein said bypass short joint is cylindrical, the top of described first shoulder hole is provided with the internal thread for being spirally connected with drilling rod, lower end and the cage pipe nipple upper end of described bypass short joint are together by a threaded connection, and the lower end of described cage pipe nipple is provided with the external screw thread for being spirally connected with lower drilling tool.
The present invention repeatedly activates bypass system, and wherein said first shoulder hole is made up of the first cylindrical hole and the second cylindrical hole from top to bottom successively, and the lower end of described spring is against on the step surface between first and second cylindrical hole.
The present invention repeatedly activates bypass system, and wherein said spring and sliding sleeve are arranged in the first cylindrical hole, is provided with sealing ring between described first cylindrical hole and sliding sleeve.
The present invention repeatedly activates bypass system, and wherein said second shoulder hole is made up of three cylindrical hole and the 4th cylindrical hole from top to bottom successively, and the lower end of described cage is against on the step surface between third and fourth cylindrical hole.
The present invention repeatedly activates bypass system, and the diameter of wherein said valve opening ball is greater than the diameter of described centre bore, and the diameter of described pass valve ball is less than the diameter of centre bore.
The present invention repeatedly activates bypass system, the sidewall of wherein said cage offers multiple cage hole, and the diameter in described cage hole is less than valve opening ball, closes the diameter of valve ball.
After adopting such scheme, the present invention repeatedly activates bypass system by dropping into a valve opening ball in bypass short joint, when valve opening ball is seated on ball seat, with low pump punching, its place chamber is built the pressure, make sliding sleeve descending, each first by-pass prot is communicated with each second by-pass prot, open the first by-pass prot, backward first shoulder hole in pump into leak stopping slurry, leak stopping is starched directly from each first, two by-pass prots enter drop ply and carry out leak stopping, when blocking construction completes, when needing to recover drilling well, in bypass short joint, drop into two close valve ball, close after valve ball arrives the second by-pass prot and start to build the pressure, when pressure reduction reaches the valve opening ball shear pressure of design, valve opening ball is sheared the centre bore through ball seat, make valve opening ball, close valve ball all to fall in cage, system is made to return back to original state, the each course of work of this system only needs by dropping into a valve opening ball and two pass valve balls in the first shoulder hole, can realize not pulling out of hole and repeatedly can carry out high concentration, bulky grain loss circulation material and squeeze method blocking construction.
Accompanying drawing explanation
Fig. 1 is decomposing schematic representation of the present invention;
Fig. 2 is the structural representation of the present invention in original state;
Fig. 3 is that the present invention is at the structural representation dropping into the spherical state of valve opening;
Fig. 4 is that the present invention drops into the structural representation closing valve ball state;
Fig. 5 is the structural representation of the present invention in the process of restPosing.
Detailed description of the invention
As shown in Figure 1, the present invention repeatedly activates bypass system and comprises columniform bypass short joint 1, bypass short joint 1 is provided with the first small top and big bottom shoulder hole in axle center place, first shoulder hole is integrally made up of the first cylindrical hole 3 and the second cylindrical hole 4 from top to bottom successively, the top of the first cylindrical hole 3 is provided with the first internal thread 2, for being connected with drilling rod, the diameter of the first cylindrical hole 3 is greater than the diameter of the second cylindrical hole 4.Be provided with spring 5 in first cylindrical hole 3 and be provided with sealing ring 7 between sliding sleeve 6, first cylindrical hole 3 and sliding sleeve 6.The lower end of spring 5 is against on the step surface between the first cylindrical hole 3 and the second cylindrical hole 4.The upper end of spring 5 and sliding sleeve 6 times end in contact, bypass short joint 1 is provided with circle first by-pass prot 8 in the sidewall of the first cylindrical hole 3, and the quantity of the first by-pass prot 8 on this circle can be arranged according to actual needs, can be two or more.The sidewall of sliding sleeve 6 is provided with circle second by-pass prot 9, and the quantity of the second by-pass prot 9 on this circle is corresponding with the quantity of the first by-pass prot 8.When sliding sleeve 6 moves downward under external force, each second by-pass prot 9 can communicate with each first by-pass prot 8, sliding sleeve 6 inner chamber is provided with cylindrical ball seat 10 in the below of the second by-pass prot 9, the center of ball seat 10 is provided with the centre bore 11 communicated with the first shoulder hole, composition graphs 4, shown in Fig. 5, the inner chamber of sliding sleeve 6 is provided with at least one valve opening ball 12 that sliding sleeve 6 can be driven under external force to move down and at least one pair of pass valve ball 13 that valve opening ball 12 can be pushed up centre bore 11 in the top of ball seat 10, the diameter of valve opening ball 12 is greater than the diameter of centre bore 11, the diameter closing valve ball 13 is less than the diameter of centre bore 11.The external surface lower end of bypass short joint 1 is provided with the first external screw thread 14.The lower end of bypass short joint 1 is connected with columniform cage pipe nipple 15, and cage pipe nipple 15 is provided with the second small top and big bottom shoulder hole in axle center place, and the second shoulder hole is integrally made up of three cylindrical hole 17 and the 4th cylindrical hole 18 from top to bottom successively.The top in three cylindrical hole 17 is provided with the second internal thread 16, is screwed together between bypass short joint 1 and cage pipe nipple 15 by the first external screw thread 14 and the second internal thread 16.The diameter in three cylindrical hole 17 is greater than the diameter of the 4th cylindrical hole 18, is provided with the uncovered cage in upper end 19 in three cylindrical hole 17, and the lower end of cage 19 is against on the step surface between three cylindrical hole 17 and the 4th cylindrical hole 18.The sidewall of cage 19 offers multiple cage hole 20, the diameter in cage hole 20 is less than the diameter of valve opening ball 12 and closes the diameter of valve ball 13, ensures valve opening ball 12 and closes valve ball 13 to go out from cage 19, and mud can be gone out from cage hole 20 smoothly.The external surface lower end of cage pipe nipple 15 is provided with the second external screw thread 21, for being connected with lower drilling tool.
With the present invention repeatedly activate bypass system leak stopping is carried out to drilling process time, its construction sequence is as follows:
(1) shown in composition graphs 2, before blocking construction, first rise and be drilled into escape pit section, in the first shoulder hole of bypass short joint 1, drop into a valve opening ball 12;
(2) shown in composition graphs 3, when valve opening ball 12 is seated on ball seat 10, building the pressure to the first shoulder hole with low pump punching, is that between 0.7-1.4 MPa, sliding sleeve 6 is descending to pressure reduction, each first by-pass prot 8 is communicated with each second by-pass prot 9, each first by-pass prot 8 is opened;
(3) improve discharge capacity to blocking construction discharge capacity, pump into leak stopping slurry, leak stopping is starched directly, and entering drop ply from each second by-pass prot 9, first by-pass prot 8 carries out leak stopping;
(4) work termination of pumping after a period of time, sliding sleeve 6 under the effect of spring 5 on move, each first by-pass prot 8 is left in each second by-pass prot 9, and each first by-pass prot 8 is closed automatically, reduces the U-tube effect or well control problem that may occur; When needing to reopen the first by-pass prot 8, slow turn on pump can subjob again;
(5) shown in composition graphs 4 and Fig. 5, when blocking construction completes, when needing to recover drilling well, in the first shoulder hole of bypass short joint 1, drop into two close valve ball 13, after pass valve ball 13 arrives the second by-pass prot 9, low pump is washed the beginning open and is built the pressure, when pressure reduction reaches the shear pressure of valve opening ball 12 of design, when being generally 13-15 MPa, valve opening ball 12 is sheared the centre bore 11 through ball seat 10, make valve opening ball 12, close valve ball 13 all fall in cage 19, cage 19 can hold multiple valve opening ball 12, close valve ball 13; According to customer requirement, can design especially and lengthen cage 19, to meet more times switching operations requirement;
(6) proceed next step construction operation, if needed, repeatedly can repeat (1) to (5) step.
The present invention repeatedly activates bypass system continuous several times can carry out switching operations in down-hole.When leakage occurs in drilling process for it, can realizing when not pulling out of hole, repeatedly carrying out high concentration, bulky grain loss circulation material and squeeze method blocking construction.In horizontal well, directional well, high angle hole operation, use the present invention repeatedly to activate bypass system and can realize high flow rate washover, wash away cutting bed, both improve well-flushing efficiency, protected again downhole instrument and downhole tool.
The above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that the common engineers and technicians in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (7)
1. one kind is repeatedly activated bypass system, it is characterized in that: comprise bypass short joint, described bypass short joint is provided with the first small top and big bottom shoulder hole in axle center place, spring and sliding sleeve is provided with in described first shoulder hole, the lower end of described spring is against on the step surface in the first shoulder hole, end in contact under the upper end of described spring and sliding sleeve, the sidewall of described bypass short joint is provided with the by-pass prot of at least one circle first, the sidewall of described sliding sleeve is provided with the by-pass prot of at least one circle second, when sliding sleeve moves downward under external force, each second by-pass prot can communicate with each first by-pass prot, described sliding sleeve inner chamber is provided with ball seat in the below of the second by-pass prot, described ball seat center is provided with the centre bore communicated with the first shoulder hole, described sliding sleeve inner chamber is provided with at least one valve opening ball that can sliding sleeve be driven under external force to move down and at least one pair of pass valve ball valve opening ball top can being crossed centre bore above ball seat, the lower end of described bypass short joint connects cage pipe nipple, described cage pipe nipple is provided with the second small top and big bottom shoulder hole in axle center place, the uncovered cage in upper end is provided with in described second shoulder hole, described cage lower end is against on the step surface in the second shoulder hole.
2. repeatedly activate bypass system as claimed in claim 1, it is characterized in that: described bypass short joint is cylindrical, the top of described first shoulder hole is provided with the internal thread for being spirally connected with drilling rod, lower end and the cage pipe nipple upper end of described bypass short joint are together by a threaded connection, and the lower end of described cage pipe nipple is provided with the external screw thread for being spirally connected with lower drilling tool.
3. repeatedly activate bypass system as claimed in claim 1, it is characterized in that: described first shoulder hole is made up of the first cylindrical hole and the second cylindrical hole from top to bottom successively, the lower end of described spring is against on the step surface between first and second cylindrical hole.
4. repeatedly activate bypass system as claimed in claim 3, it is characterized in that: described spring and sliding sleeve are arranged in the first cylindrical hole, between described first cylindrical hole and sliding sleeve, be provided with sealing ring.
5. repeatedly activate bypass system as claimed in claim 1, it is characterized in that: described second shoulder hole is made up of three cylindrical hole and the 4th cylindrical hole from top to bottom successively, the lower end of described cage is against on the step surface between third and fourth cylindrical hole.
6. repeatedly activate bypass system as claimed in claim 1, it is characterized in that: the diameter of described valve opening ball is greater than the diameter of described centre bore, the diameter of described pass valve ball is less than the diameter of centre bore.
7. repeatedly activate bypass system as claimed in claim 1, it is characterized in that: the sidewall of described cage offers multiple cage hole, the diameter in described cage hole is less than valve opening ball, closes the diameter of valve ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476368.5A CN105422041A (en) | 2014-09-18 | 2014-09-18 | Multiple-activation bypass system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410476368.5A CN105422041A (en) | 2014-09-18 | 2014-09-18 | Multiple-activation bypass system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105422041A true CN105422041A (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410476368.5A Pending CN105422041A (en) | 2014-09-18 | 2014-09-18 | Multiple-activation bypass system |
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| Country | Link |
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| CN (1) | CN105422041A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109184604A (en) * | 2018-09-26 | 2019-01-11 | 中石化石油机械股份有限公司 | The novel ball-type of one kind repeatedly activates down-hole by-pass valve and its system and application method |
| CN110029961A (en) * | 2019-03-06 | 2019-07-19 | 新疆格瑞迪斯石油技术股份有限公司 | A kind of repeatedly activation bypass system and its application method |
| CN112943157A (en) * | 2021-03-05 | 2021-06-11 | 河南易发石油工程技术有限公司 | Ball throwing type leaking stoppage bypass valve for well drilling |
| CN115142813A (en) * | 2022-06-08 | 2022-10-04 | 合力（天津）能源科技股份有限公司 | Circulating valve with multiple-bypass leakage stoppage |
| CN116006127A (en) * | 2021-10-22 | 2023-04-25 | 中国石油天然气集团有限公司 | Multiple switch circulation plugging device |
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| CN202108472U (en) * | 2011-05-12 | 2012-01-11 | 赵广友 | Separated steam injection well ball-casting air-operated valve device |
| CN102325956A (en) * | 2009-01-26 | 2012-01-18 | 贝克休斯公司 | The two way seal mechanical displacement ball valve that is used for downhole well applications |
| 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 |
| US20130092380A1 (en) * | 2011-10-11 | 2013-04-18 | Red Spider Technology Limited | Downhole contingency apparatus |
| CN204126598U (en) * | 2014-09-18 | 2015-01-28 | 新疆格瑞迪斯石油技术股份有限公司 | Repeatedly activate bypass system |
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2014
- 2014-09-18 CN CN201410476368.5A patent/CN105422041A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325956A (en) * | 2009-01-26 | 2012-01-18 | 贝克休斯公司 | The two way seal mechanical displacement ball valve that is used for downhole well applications |
| CN202108472U (en) * | 2011-05-12 | 2012-01-11 | 赵广友 | Separated steam injection well ball-casting air-operated valve device |
| 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 |
| US20130092380A1 (en) * | 2011-10-11 | 2013-04-18 | Red Spider Technology Limited | Downhole contingency apparatus |
| CN204126598U (en) * | 2014-09-18 | 2015-01-28 | 新疆格瑞迪斯石油技术股份有限公司 | Repeatedly activate bypass system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109184604A (en) * | 2018-09-26 | 2019-01-11 | 中石化石油机械股份有限公司 | The novel ball-type of one kind repeatedly activates down-hole by-pass valve and its system and application method |
| CN109184604B (en) * | 2018-09-26 | 2020-07-28 | 中石化石油机械股份有限公司 | Novel one-ball type multi-activation underground bypass valve and system and using method thereof |
| CN110029961A (en) * | 2019-03-06 | 2019-07-19 | 新疆格瑞迪斯石油技术股份有限公司 | A kind of repeatedly activation bypass system and its application method |
| CN112943157A (en) * | 2021-03-05 | 2021-06-11 | 河南易发石油工程技术有限公司 | Ball throwing type leaking stoppage bypass valve for well drilling |
| CN112943157B (en) * | 2021-03-05 | 2022-10-14 | 河南易发石油工程技术有限公司 | Ball-throwing type leaking stoppage bypass valve for well drilling |
| CN116006127A (en) * | 2021-10-22 | 2023-04-25 | 中国石油天然气集团有限公司 | Multiple switch circulation plugging device |
| CN116006127B (en) * | 2021-10-22 | 2024-04-26 | 中国石油天然气集团有限公司 | Multiple switch circulation plugging device |
| CN115142813A (en) * | 2022-06-08 | 2022-10-04 | 合力（天津）能源科技股份有限公司 | Circulating valve with multiple-bypass leakage stoppage |
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Application publication date: 20160323 |