CN105003227B - The detachable hydraulic sliding sleeve of oil/gas well - Google Patents
The detachable hydraulic sliding sleeve of oil/gas well Download PDFInfo
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- CN105003227B CN105003227B CN201510479140.6A CN201510479140A CN105003227B CN 105003227 B CN105003227 B CN 105003227B CN 201510479140 A CN201510479140 A CN 201510479140A CN 105003227 B CN105003227 B CN 105003227B
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- elastic claw
- giving
- connecting cylinder
- rotation connecting
- limiting tube
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Abstract
The invention discloses a kind of oil/gas wells with detachable hydraulic sliding sleeve, and including top connection, lower contact, ball seat, elastic claw of giving up, anti-rotation connecting cylinder and position-limiting tube, top connection are fixedly connected with elastic claw of giving up；Ball seat and position-limiting tube are fixedly connected into moving component, and are fixed on by safe shear pin in the inner cavity for elastic claw of giving up；Elastic claw of giving up includes open circles shell of column and the elastic claw segment surrounded by multiple elastic claw pieces, and one end of anti-rotation connecting cylinder is fixedly connected with lower contact；Elastic claw of giving up is between anti-rotation connecting cylinder and position-limiting tube, and /V pipe outer wall is equipped with the groove for accommodating elastic claw segment；The end for elastic claw of giving up is equipped with elastic claw inclined-plane, and anti-rotation connecting cylinder inner wall is equipped with the step outer inclined-plane with elastic claw slopes which match.Using the present invention, when that can not be taken out for tool tubular column after completing the storey increase design on stratum, can be built the pressure the separation realized and be sent into oil pipe and completion tool by well head pitching, so as to quickly and easily take out feeding oil pipe, realize the purpose of top wellbore operations.
Description
Technical field
The present invention relates to a kind of hydraulic sliding sleeves for oil/gas well, belong to industrial gas oil downhole tool technology neck
Domain.
Background technology
Oil/gas well routine stimulation work mode is by complete to stratum in oil pipe connection completion tool tripping in oil/gas well at present
Into acidifying or fracturing reform to reach volume increase purpose.It needs to take out tool tubular column in well after stratum transformation or oil gas harvesting is completed
When, it due to the influence of down hole problem, can cause tool tubular column that can not take out, influence the secondary operation of pit shaft.
Such as Publication No. CN104481491A, publication date discloses one kind for the Chinese patent literature on April 1st, 2015 and follows
Ring control type sliding sleeve of bushing closes instrument, and including body, fluid cylinder, elastic claw cylinder, resetting spring and lower contact, the fluid cylinder is arranged on
On body, with being provided with liquid pass hole at fluid cylinder cooperation, elastic claw cylinder is connected to fluid cylinder lower end and on body outer wall body, described
Resetting spring is mounted in elastic claw cylinder, and the lower contact is connected to body lower end, and lower contact is hollow or solid, elastic claw cylinder lower end
Elastic claw is provided with, elastic claw inner conical surface makes elastic claw overhanging, is provided in sliding sleeve inner cavity and is embedded in elastic claw with the cooperation of lower contact male cone (strobilus masculinus)
The closing groove of cooperation.The invention can realize that sliding sleeve of bushing is selectively closed, and can prevent oil gas well mining later stage water layer from flooding
Dead gas well can be effectively ensured petroleum resources and continue safe working.
But using above patent document as the prior art of representative, the separation of oil pipe and completion tool is still can not achieve, because
This needs to design a kind of realization oil pipe downhole hardware separated with completion tool, when can not be taken out so as to tool tubular column, by this
Device completes the separation of oil pipe and completion tool, so as to take out top oil pipe.
The content of the invention
It is contemplated that the defects of existing for the above-mentioned prior art and deficiency, a kind of oil/gas well is provided with detachable
Hydraulic sliding sleeve using the present invention, when that can not be taken out for tool tubular column after completing the storey increase design on stratum, can pass through well head pitching
Build the pressure the separation realized and be sent into oil pipe and completion tool, so as to quickly and easily take out feeding oil pipe, realizes top pit shaft
The purpose of operation.
The present invention is realized by using following technical proposals：
The detachable hydraulic sliding sleeve of a kind of oil/gas well, including top connection, lower contact and ball seat, it is characterised in that：Also wrap
Elastic claw of giving up, anti-rotation connecting cylinder and position-limiting tube are included, the top connection is fixedly connected with elastic claw of giving up；The ball seat and position-limiting tube are consolidated
Surely moving component is connected into, and is fixed on by safe shear pin in the inner cavity for elastic claw of giving up；The elastic claw of giving up includes open circles
Shell of column and the elastic claw segment surrounded by multiple elastic claw pieces, are connected as one and are formed between open circles shell of column and elastic claw segment
It step and gets out of a predicament or an embarrassing situation, one end of the anti-rotation connecting cylinder is fixedly connected with lower contact, and the other end of anti-rotation connecting cylinder snaps onto institute
State the place of getting out of a predicament or an embarrassing situation formed between open circles shell of column and elastic claw segment；The elastic claw of giving up be located at anti-rotation connecting cylinder and position-limiting tube it
Between, and the /V pipe outer wall be equipped with when give up elastic claw undergauge when accommodate the groove of the elastic claw segment, the position-limiting tube is downward
When connector direction moves, simultaneously /V is contacted with top bar by the groove；The end of the elastic claw of giving up is equipped with elastic claw inclined-plane,
Anti-rotation connecting cylinder inner wall is equipped with step outer inclined-plane with the elastic claw slopes which match, anti-rotation connecting cylinder by step outer inclined-plane with
The elastic claw inclined-plane for elastic claw of giving up is in contact and /V.
It is inclined that the upper end on the elastic claw inclined-plane is directed towards that one end of top connection.
The top connection is to be fixedly connected by screw thread with elastic claw of giving up, and passes through holding screw and fix.
The ball seat is to be fixedly connected by screw thread with position-limiting tube, and passes through holding screw and fix.
The anti-rotation connecting cylinder is to be fixedly connected by screw thread with lower contact, and passes through holding screw and fix.
It is described to give up between elastic claw and top connection, give up between elastic claw and position-limiting tube, between position-limiting tube and ball seat, ball seat with
At least one sealing ring is equipped between lower contact.
The other end of the anti-rotation connecting cylinder be by stop pin and anti-rotation groove cooperation snap onto the open circles shell of column and
The place of getting out of a predicament or an embarrassing situation formed between elastic claw segment.
The anti-rotation connecting cylinder upper surface is jagged, and is engaged with the notch for elastic claw end face of giving up.
Compared with prior art, what the present invention was reached has the beneficial effect that：
When the 1st, needing to start the present invention, the ball that builds the pressure is put by well head, is fallen under ball and closure is formed at ball seat, suppressing internal pressure makes
Ball seat and position-limiting tube generate lower thrust, come downwards to lower contact spacing place after cutting safe shear pin, position-limiting tube is no longer to elastic claw of giving up
Aperture surface contacts, and above puts on connector and drives elastic claw movement of giving up, makes elastic claw inclined-plane and phase occurs for step inclined-plane in anti-rotation connecting cylinder
To sliding and making to give up, elastic claw is shunk, the separation of complete to give up elastic claw and anti-rotation connecting cylinder, so as to fulfill oil pipe and completion is sent into
The separation of Tool Room.The configuration of the present invention is simple, operating process is convenient, can be effective without tubing string rotation is leaned on to realize separating action
To completion tool part, dependable performance does not have attachment and falls the torque of oil pipe in separation process at well head when transferring operation
Enter lower part pit shaft, while be designed with and judge whether hole energy accurate judgement realizes that component separates.
2nd, in the present invention, elastic claw of giving up includes open circles shell of column and the elastic claw segment surrounded by multiple elastic claw pieces, open circles
It is connected as one between shell of column and elastic claw segment and is formed with top bar and gets out of a predicament or an embarrassing situation, /V pipe outer wall is equipped with when elastic claw contracting of giving up
The groove of the elastic claw segment is accommodated during footpath, so specific frame mode can reach following technique effect：The setting of top bar
Mode be convenient for groove coordinate, so as to realize when give up elastic claw undergauge when, the groove of position-limiting tube can be tangled by top bar, be made
Position-limiting tube, ball seat can drink elastic claw of giving up and take out together in well.
3rd, in the present invention, the end of the elastic claw of giving up is equipped with elastic claw inclined-plane, and anti-rotation connecting cylinder inner wall is equipped with and the bullet
The step outer inclined-plane of pawl slopes which match, anti-rotation connecting cylinder are in contact simultaneously by step outer inclined-plane with the elastic claw inclined-plane for elastic claw of giving up
/V, so specific frame mode, can reach following technique effect：When putting on connector on needs, elastic claw of giving up is driven to move up
When, anti-rotation connecting cylinder is in contact by step outer inclined-plane with elastic claw inclined-plane, so as to play guiding role, convenient for elastic claw of giving up with preventing
Turn connecting cylinder to come off, and the guiding on inclined-plane causes elastic claw undergauge, so that the top bar for elastic claw of giving up can tangle position-limiting tube
Groove.
4th, in the present invention, the upper end on elastic claw inclined-plane is directed towards that one end of top connection is inclined, and such angled manner more has
Beneficial to giving up, elastic claw comes off with anti-rotation connecting cylinder.
5th, in the present invention, the other end of anti-rotation connecting cylinder is to snap onto the open circles by stop pin and anti-rotation groove cooperation
The place of getting out of a predicament or an embarrassing situation formed between shell of column and elastic claw segment, stop pin and anti-rotation groove cooperation can realize that elastic claw of giving up connects with anti-rotation
Radial rotation between connect cylinder, but the axial direction that shadow is not given up between elastic claw and anti-rotation connecting cylinder comes off.
6th, in the present invention, each component is linked together by the way of holding screw, it is organic to realize all parts
It links together, there is anti-rotating function between each component.
7th, in the present invention, sealing performance can be further enhanced by the way of sealing ring.
Description of the drawings
Below in conjunction with specification drawings and specific embodiments, the present invention is described in further detail, wherein：
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is that the present invention input ball that builds the pressure builds the pressure and cuts the structure that position-limiting tube and ball seat after safe shear pin move to spacing place
Schematic diagram；
Fig. 3 becomes two-part structure diagram after being separated for the present invention.
It is marked in figure：1st, top connection, 2, elastic claw of giving up, 3, holding screw one, 4, sealing ring one, 5, safe shear pin, 6, limit
Position pipe, 7, anti-rotation connecting cylinder, 8, build the pressure ball, 9, holding screw two, 10, holding screw three, 11, sealing ring two, 12, sealing ring
Three, 13, ball seat, 14, lower contact,
15th, open circles shell of column, 16, elastic claw segment, 17, top bar, 18, get out of a predicament or an embarrassing situation, 19, groove, 20, elastic claw inclined-plane, 21,
Step outer inclined-plane.
Specific embodiment
Embodiment 1
With reference to Figure of description, as the most basic embodiment of the present invention, including top connection 1, lower contact 14, ball seat
13rd, elastic claw of giving up 2, anti-rotation connecting cylinder 7 and position-limiting tube 6, the top connection 1 are fixedly connected with elastic claw 2 of giving up；13 He of ball seat
Position-limiting tube 6 is fixedly connected into moving component, and is fixed on by safe shear pin 5 in the inner cavity for elastic claw 2 of giving up；The elastic claw of giving up
2 include open circles shell of column 15 and the elastic claw segment 16 surrounded by multiple elastic claw pieces, between open circles shell of column 15 and elastic claw segment 16
It being connected as one and is formed with top bar 17 and gets out of a predicament or an embarrassing situation 18, one end of the anti-rotation connecting cylinder 7 is fixedly connected with lower contact 14,
The other end of anti-rotation connecting cylinder 7 snaps onto getting out of a predicament or an embarrassing situation at 18 of being formed between the open circles shell of column 15 and elastic claw segment 16；Institute
It states and gives up elastic claw 2 between anti-rotation connecting cylinder 7 and position-limiting tube 6, and 6 outer wall of the position-limiting tube is equipped with when 2 undergauge of elastic claw of giving up
The groove 19 of elastic claw segment 16 described in Shi Rongna, the position-limiting tube 6 to 14 direction of lower contact move when, by the groove 19 with
The contact of top bar 17 and /V；The end of the elastic claw 2 of giving up is equipped with elastic claw inclined-plane 20, and 7 inner wall of anti-rotation connecting cylinder is equipped with and institute
The step outer inclined-plane 21 that elastic claw inclined-plane 20 matches is stated, anti-rotation connecting cylinder 7 passes through step outer inclined-plane 21 and the elastic claw for elastic claw 2 of giving up
Inclined-plane 20 is in contact and /V.
The ball 8 that builds the pressure is not required to install, and when needing to carry out separate type, the ball 8 that builds the pressure is put into from well head.
Embodiment 2
On the basis of above-described embodiment, preferred forms of the invention are that the upper end on the elastic claw inclined-plane 20 is court
To top connection 1, that one end is inclined.The top connection 1 is to be fixedly connected by screw thread with elastic claw 2 of giving up, and passes through holding screw
It is fixed.The ball seat 13 is to be fixedly connected by screw thread with position-limiting tube 6, and passes through holding screw and fix.The anti-rotation connecting cylinder 7
It is to be fixedly connected by screw thread with lower contact 14, and passes through holding screw and fix.It is described to give up between elastic claw 2 and top connection 1, it loses
Between hand elastic claw 2 and position-limiting tube 6, between position-limiting tube 6 and ball seat 13, it is equipped between ball seat 13 and lower contact 14 at least one close
Seal.The other end of the anti-rotation connecting cylinder 7 is to snap onto 15 He of open circles shell of column by stop pin and anti-rotation groove cooperation
What is formed between elastic claw segment 16 gets out of a predicament or an embarrassing situation at 18.7 upper surface of anti-rotation connecting cylinder is jagged, and with 2 end of elastic claw of giving up
The notch in face is engaged.
During onsite application, the ball 8 that builds the pressure is put by well head, after ball reaches ball seat 13, continues to build the pressure, in position-limiting tube 6 and ball
The safe shear pin 5 of lower thrust cutting is generated in the annular seal space that seat 13 is formed and promotes position-limiting tube 6 and the displacement of 13 downlink of ball seat, position-limiting tube 6
Periphery disengaging is contacted with the elastic claw inner headed face for elastic claw 2 of giving up, and the elastic claw for the elastic claw 2 that makes to give up has the space of retraction.
On put on connector 1, drive elastic claw 2 of giving up moves up, and bullet occurs at the step outer inclined-plane 21 of anti-rotation connecting cylinder 7 for elastic claw
Property deformation elastic claw outer diameter is made to become smaller, so as to fulfill the separation with anti-rotation connecting cylinder 7, after separation, position-limiting tube 6 and ball seat 13 are stuck in and lose
It will not fall at the interior step surface of hand elastic claw 2 in well, build the pressure the intracavitary in ball seat 13 of ball 8, is taken out with upper tool in well.
Claims (8)
1. a kind of detachable hydraulic sliding sleeve of oil/gas well, including top connection（1）, lower contact（14）And ball seat（13）, feature
It is：Further include elastic claw of giving up（2）, anti-rotation connecting cylinder（7）And position-limiting tube（6）, the top connection（1）With elastic claw of giving up（2）Gu
Fixed connection；The ball seat（13）And position-limiting tube（6）Moving component is fixedly connected into, and passes through safe shear pin（5）It is fixed on and gives up
Elastic claw（2）Inner cavity in；The elastic claw of giving up（2）Including open circles shell of column（15）With the elastic claw segment surrounded by multiple elastic claw pieces
（16）, open circles shell of column（15）With elastic claw segment（16）Between be connected as one and be formed with top bar（17）With get out of a predicament or an embarrassing situation
（18）, the anti-rotation connecting cylinder（7）One end and lower contact（14）It is fixedly connected, anti-rotation connecting cylinder（7）The other end snap onto
The open circles shell of column（15）With elastic claw segment（16）Between formed get out of a predicament or an embarrassing situation（18）Place；The elastic claw of giving up（2）Positioned at anti-
Turn connecting cylinder（7）And position-limiting tube（6）Between, and the position-limiting tube（6）Outer wall is equipped with when elastic claw of giving up（2）Described in being accommodated during undergauge
Elastic claw segment（16）Groove（19）, the position-limiting tube（6）To lower contact（14）When direction moves, pass through the groove（19）With
Top bar（17）Contact simultaneously /V；The elastic claw of giving up（2）End be equipped with elastic claw inclined-plane（20）, anti-rotation connecting cylinder（7）Inner wall
Equipped with the elastic claw inclined-plane（20）The step outer inclined-plane to match（21）, anti-rotation connecting cylinder（7）Pass through step outer inclined-plane（21）
With elastic claw of giving up（2）Elastic claw inclined-plane（20）Be in contact simultaneously /V.
2. the detachable hydraulic sliding sleeve of oil/gas well according to claim 1, it is characterised in that：The elastic claw inclined-plane（20）
Upper end be directed towards top connection（1）That one end is inclined.
3. the detachable hydraulic sliding sleeve of oil/gas well according to claim 1 or 2, the top connection（1）It is to pass through screw thread
With elastic claw of giving up（2）It is fixedly connected, and passes through holding screw and fix.
4. the detachable hydraulic sliding sleeve of oil/gas well according to claim 1 or 2, the ball seat（13）Be by screw thread with
Position-limiting tube（6）It is fixedly connected, and passes through holding screw and fix.
5. the detachable hydraulic sliding sleeve of oil/gas well according to claim 1 or 2, the anti-rotation connecting cylinder（7）It is to pass through
Screw thread and lower contact（14）It is fixedly connected, and passes through holding screw and fix.
6. the detachable hydraulic sliding sleeve of oil/gas well according to claim 1, the elastic claw of giving up（2）With top connection（1）
Between, elastic claw of giving up（2）With position-limiting tube（6）Between, position-limiting tube（6）With ball seat（13）Between, ball seat（13）With lower contact（14）
Between be equipped at least one sealing ring.
7. the detachable hydraulic sliding sleeve of oil/gas well according to claim 1, the anti-rotation connecting cylinder（7）The other end be
The open circles shell of column is snapped onto by stop pin and anti-rotation groove cooperation（15）With elastic claw segment（16）Between formed get out of a predicament or an embarrassing situation
（18）Place.
8. the detachable hydraulic sliding sleeve of oil/gas well according to claim 1, the anti-rotation connecting cylinder（7）Upper surface has scarce
Mouthful, and with elastic claw of giving up（2）The notch of end face is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510479140.6A CN105003227B (en) | 2015-08-03 | 2015-08-03 | The detachable hydraulic sliding sleeve of oil/gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510479140.6A CN105003227B (en) | 2015-08-03 | 2015-08-03 | The detachable hydraulic sliding sleeve of oil/gas well |
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| Publication Number | Publication Date |
|---|---|
| CN105003227A CN105003227A (en) | 2015-10-28 |
| CN105003227B true CN105003227B (en) | 2018-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510479140.6A Active CN105003227B (en) | 2015-08-03 | 2015-08-03 | The detachable hydraulic sliding sleeve of oil/gas well |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443057B (en) * | 2015-12-08 | 2018-10-16 | 中国石油天然气集团公司 | Bearing torque formula Double-acting releasing tool |
| CN111927339A (en) * | 2020-09-06 | 2020-11-13 | 中国石油天然气集团有限公司 | Safety joint for staged fracturing pipe column |
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| CN103527143A (en) * | 2013-10-11 | 2014-01-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Pitching type fracturing valve |
| CN103711470A (en) * | 2014-01-02 | 2014-04-09 | 四川省威尔敦化工有限公司 | Well fracturing acidification technique pipe and taking out method thereof |
| CN203685152U (en) * | 2014-01-02 | 2014-07-02 | 四川省威尔敦化工有限公司 | Oil-gas well fracture acidizing technique pipe |
| CN203702119U (en) * | 2014-01-02 | 2014-07-09 | 四川省威尔敦化工有限公司 | Rated load switch applied to fracture acidizing process pipe column of oil-gas well |
| EP2881536A2 (en) * | 2013-12-04 | 2015-06-10 | Weatherford/Lamb Inc. | Burst sleeve and positive indication for fracture sleeve opening |
| CN204984355U (en) * | 2015-08-03 | 2016-01-20 | 中国石油集团川庆钻探工程有限公司 | Oil gas is detachable hydraulic pressure sliding sleeve for well |
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2015
- 2015-08-03 CN CN201510479140.6A patent/CN105003227B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444387A (en) * | 2011-12-13 | 2012-05-09 | 中国石油集团川庆钻探工程有限公司井下作业公司 | Tie-back self-lock mechanism for suspended packer |
| CN103527143A (en) * | 2013-10-11 | 2014-01-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Pitching type fracturing valve |
| EP2881536A2 (en) * | 2013-12-04 | 2015-06-10 | Weatherford/Lamb Inc. | Burst sleeve and positive indication for fracture sleeve opening |
| CN103711470A (en) * | 2014-01-02 | 2014-04-09 | 四川省威尔敦化工有限公司 | Well fracturing acidification technique pipe and taking out method thereof |
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| CN105003227A (en) | 2015-10-28 |
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Effective date of registration: 20200916 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: Chenghua District Green Road 610051 Chengdu City, Sichuan province 1 No. 3 Chuanqing drilling Department of Science & Technology Patentee before: CNPC Chuanqing Drilling Engineering Co.,Ltd. |
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