CN105164365A - System and method for controlling flow in a pipe using a finger valve - Google Patents
System and method for controlling flow in a pipe using a finger valve Download PDFInfo
- Publication number
- CN105164365A CN105164365A CN201380074589.3A CN201380074589A CN105164365A CN 105164365 A CN105164365 A CN 105164365A CN 201380074589 A CN201380074589 A CN 201380074589A CN 105164365 A CN105164365 A CN 105164365A
- Authority
- CN
- China
- Prior art keywords
- fingers
- finger
- sliding sleeve
- base tube
- sleeve
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 150000002430 hydrocarbons Chemical class 0.000 claims 1
- 239000011800 void material Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
Abstract
Described herein is a system and method for controlling flow in a pipe sting using a finger valve. Specifically, the disclosure describes a finger valve comprising a base pipe and a sliding sleeve. The base pipe can comprise a finger port, one or more fingers; and one or more hinges, each of the hinges connecting one of the fingers to the base pipe. The sliding sleeve can comprise a sliding sleeve having a first sleeve with in inner surface comprising a void and a depressor. The first sleeve can be positionable in a first position and a second position. In the first position, the depressor can push the one or more fingers into a closed position. In the second position, the void can rest at least one of the one or more fingers, allowing the one or more fingers to move into an open position.
Description
Background technology
The present invention relates to a kind of finger valve that uses to control the system and method for flowing in tubing string.
In these years, the demand of natural gas and oil significantly increases, and the oil and natural gas reservoir making production efficiency low is viable economically, plays key player in fracturing production of energy in the world.In decades, different technology has been used to the method improving the resources of production from oil and natural gas.Making long horizontal hole have multiple crack is a kind of conventional process for improving oil-gas mining in well.This technique start from well drilled good and complete be arranged on well after.Multistage fracturing process relates to and the water pressurizeed in a large number or gel, proppant and/or other chemicals is pumped into well, to produce multiple discrete fractures in the reservoir of well.
A kind of advanced method used at present is the proppant pressure break of simultaneously carrying out nearly 30 cracks in a pumping operation.The method relates to the use for the proppant stoping crack to be closed.But this way can cause the uneven distribution of proppant between crack usually, this will reduce the efficiency of frac system.Consequently, this way also may cause crack to spread region to wide reservoir.Therefore, such method may be poor efficiency and unsafe.
In addition, support fracturing generally includes multiple step and needs multiple instrument, could successfully carry out.This way will cause the uneven distribution of proppant between crack, and highly depends on the pressure break ball arranging plug or use larger between each pressure break stage.In these methods, after each crack is perforated or pumps into, can plug be set, or pressure break ball can fall into from surface to open the fracturing valve along well distribution continuously.For every one-phase, the ball of different-diameter falls into the well of the valve seat corresponding to specific fracturing valve.At some place of oil well, because borehole diameter reduces, this ball will not by.Once ball is in place, pressure break can be carried out.After pressure break, plug must be got out and ball must be recovered.In each pressure break stage, when arranging plug, too much time and efforts is consumed to be left hole between the stages and gets out beyond the Great Wall.In addition, inland rig pays rent by number of days usually, and it is many that any delay all may make cost increase.In addition, in ball method, be difficult to pressure break due to little bulb diameter because of the large pressure loss, make flow region restricted before, only about may have 12 different pressure break stages.
Therefore, a kind of finger valve that uses is provided to be useful to control the system and method for flowing in tubing string.
Summary of the invention
This document describes that a kind of finger valve that utilizes is to control the system and method for flowing in tubing string.Particularly, the invention describes a kind of finger valve, described finger valve comprises base tube and sliding sleeve.Described base tube comprises: finger openings, one or more fingers and one or more hinge, and a described fingers is connected to described base tube by hinge described in each.Described sliding sleeve can comprise: first sleeve with inner surface, and described inner surface comprises space and lower laminate.Described first sleeve is operationally positioned at primary importance and the second place.In described primary importance, described one or more fingers is pushed fastening position by described lower laminate.In the described second place, described space, around one of described one or more fingers, allows described one or more fingers in an open position.
Invention further describes a kind of finger valve that uses controls by the method for the flowing of tubing string, is included in the base tube that connects in tubing string and drives the step of sliding sleeve from primary importance to the second place.Described base tube can comprise finger openings, one or more fingers and one or more hinge, and a described fingers is connected to described base tube by hinge described in each.Described sliding sleeve can comprise the first sleeve, and described first sleeve comprises inner surface, and described inner surface comprises space and lower laminate.In described primary importance, described one or more fingers is pushed fastening position by described lower laminate.In the described second place, described space, around one of described one or more fingers, allows described one or more fingers in an open position.
Accompanying drawing explanation
Figure 1A illustrates the lateral view of base tube.
Figure 1B illustrates the elevation of base tube.
Fig. 1 C illustrates the sectional view of base tube.
Fig. 2 A illustrates sliding sleeve, and it is connected to fixed muffle by actuator and aligns with fixed muffle.
Fig. 2 B illustrates the elevation of sliding sleeve.
Fig. 2 C illustrates the sectional view of sliding sleeve.
Fig. 2 D illustrates the sectional view of sliding sleeve, and it also includes actuator and fixed muffle.
Fig. 3 A illustrates the periphery figure of outer shroud.
Fig. 3 B illustrates the elevation of outer shroud.
Fig. 4 A illustrates valve casing.
Fig. 4 B illustrates the pressure break mouth of valve casing.
Fig. 4 C illustrates the production groove of valve casing.
Fig. 5 illustrates the finger valve being in " shut " mode".
Fig. 6 illustrates the finger valve being in the pattern of opening.
Detailed description of the invention
This document describes that a kind of finger valve that utilizes is to control the system and method for tubing string inner fluid.Hereafter be description is made those skilled in the art to manufacture and uses the present invention for required protection and provided by specific embodiment discussed below, and the modification of specific embodiment is hereinafter described apparent for those skilled in the art.For the sake of clarity, be not that all features of actual realization are all described in this manual.Should understand, implement in the exploitation of (as in any exploration project) in any this reality, must carry out the specific objective (such as meeting system restriction relevant with business) that accurate design realizes designer, and these targets are for difference different embodiments.It should also be appreciated that this development effort may be complicated and time-consuming, but will be normal work to do for the those of ordinary skill had benefited from relevant art field of the present disclosure.Correspondingly, the claim herein is not intended to be limited by the disclosed embodiments, but should be endowed the widest scope consistent with principle disclosed herein and feature.
Figure 1A illustrates the lateral view of base tube 100.Base tube can connect the part as tubing string.In one embodiment, base tube 100 can be cylindric, and comprises fingers 101 and finger openings 102.Figure 1B illustrates fingers 101, and fingers 101 can be connected to base tube 100 by hinge 103.In one embodiment, base tube 100 also can be connected to fingers 101 by the first biasing device 104.In another embodiment, the first biasing device 104 can operationally as a part for hinge 103.By the first biasing device is connected to fingers 101 and base tube 102, fingers can be biased into a position opened or closed.For exemplary purpose, the present invention illustrates the fingers 101 being biased into open position.In one embodiment, base tube 100 can also comprise the Part I of pressure break mouth 105 and/or produce mouth 106.The Part I of pressure break mouth 105 can be formed by one or more opening, and production mouth 106 also can be formed by one or more openings of base tube 100.
Fig. 1 C illustrates the elevation of base tube 100.Base tube 100 can also comprise chamber 107.When fingers 101 is in an open position, chamber 107 can be the cavity or opening that allow material to pass through.But when fingers 101 is in the closed position, fingers 101 forms one to chamber 107 together and blocks significantly or completely, essentially or fully stop material by base tube 100.
Fig. 1 D illustrates the cross section of the base tube 100 also including basic ring 108.In one embodiment, finger openings 102 can be the multiple holes separated around base tube 100 radial direction.In another embodiment, finger openings 102 can be the cylindrical section that base tube 100 lacks.The Part I of pressure break mouth 105 can be circular layout around the middle part of base tube 100.Produce mouth 106 to be circular layout around the afterbody of base tube 100.
Fig. 2 A illustrates sliding sleeve 200, and it is connected to fixed muffle by actuator 208 and aligns with outer shroud 209.In one embodiment, sliding sleeve 200 can be cylindrical shape material, and it can comprise the Part II of pressure break mouth 105.In one embodiment, sliding sleeve 200 can have the opening even as big as installing base tube 100.Fig. 2 B illustrates the elevation of sliding sleeve 200.Sliding sleeve 200 can also comprise sleeve chamber 201.Sleeve chamber 201 can be the opening even as big as holding base tube 100.
Fig. 2 C illustrates the sectional view of sliding sleeve 200.Sliding sleeve 200 can comprise the first sleeve 202 and the second sleeve 203.In addition, the first sleeve 202 can be connected by one or more arc-like sheet 204 with the second sleeve 203, and the space between arc-like sheet 204 limits a part for pressure break mouth 105.The inner surface of the first sleeve 202 can comprise surface characteristics, and these surface characteristics and one or more fingers 101 interact.Surface characteristics can comprise fisrt feature and second feature.Fisrt feature can be one or more spaces 205, and second feature can be the lower laminate (depressor) 206 that fingers 101 can be moved to fastening position.Space 205 can extend around the whole internal diameter of base tube 100, circle segment internal diameter radial direction or be positioned single radial position.If Perfect Ring is around internal diameter, then the end of inner surface can have the diameter less than this space.If location, space 205 can comprise multiple positioning pit, and the plurality of positioning pit is positioned to the inner surface of radial loop around sliding sleeve 200.
Fig. 2 D illustrates the sectional view of the sliding sleeve 200 comprising fixed muffle 207 further, and fixed muffle 207 is connected on fixed muffle 207 by actuator 208, and aligns with outer shroud 209.In one embodiment, actuator 208 can be the biasing device of such as spring.Second sleeve 203 of sliding sleeve 200 can utilize actuator 208 to be connected to fixed muffle 205.In one embodiment, actuator 208 is biasing devices, and sliding sleeve 200 can be pulled by towards fixed muffle 205, thus compression or otherwise carrying have the biasing device 208 of potential energy.Then biasing device 208 can be released or excite, and promotes sliding sleeve 200 and leaves fixed muffle 205.In another embodiment, sliding sleeve 200 can be turned back to original position by actuator 208.Although fixed muffle 205 is described as cylinder in above each figure, in practice, it may not be continuous loop.On the contrary, fixed muffle can be any equipment being connected to base tube 100, and it gives actuator 208 fulcrum to push away near or push away sliding sleeve thus drive sliding sleeve 205.In one embodiment, fixed muffle 205 can be an assembly of actuator 208.
Fig. 3 A illustrates the periphery figure of outer shroud 209.As shown in Figure 3 B, in one embodiment, outer shroud 209 can be the solid circles bobbin being formed with ring cavity 301.In another embodiment, outer shroud 209 can be connected to the basic ring 108 of base tube 100.In one embodiment, outer shroud 209 can be form cylindric closed solid material.Ring cavity 301 can be the space being formed at outer shroud 209 inside.Ring cavity 301 is even as big as slipping over base tube 100.Outer shroud 300 can be fixed to base tube 100.In one embodiment, outer shroud 209 can be used for stoping sliding sleeve 200 to move forward in driving process.
Fig. 4 A illustrates valve casing 400.In one embodiment, valve casing 400 can be cylinder material, and this material can comprise the Part III of pressure break mouth 105 and produce mouth 106.As shown in Figure 4 B, the Part III of pressure break mouth 105 can be the multiple openings be circular layout around valve casing 400.In addition, as shown in Figure 4 C, producing mouth 106 can be the one or more openings arranged around valve casing 400.
Fig. 5 illustrates the finger valve 500 being in " shut " mode".In one embodiment (wherein fracturing valve 500 may be used for fractured well), fracturing valve 500 can comprise base tube 100, sliding sleeve 200, outer shroud 300 and/or valve casing 400.In such embodiments, base tube 100 can be the innermost layer of finger valve 500.Intermediate layer around base tube 100 can comprise sliding sleeve 200 and be fixed to the outer shroud 300 of base tube 100, and wherein fixed muffle 207 is fixed to base tube 100.Finger valve 500 can comprise as outer field valve casing 400.In one embodiment, valve casing 400 can be connected to basic ring 108, outer shroud 209 and fixed muffle 207.In pressure break position, pressure break mouth 105 can align according to the relative position of base tube 100 and sliding sleeve 200 and open.
In open mode, biasing device 208 can be in load condition, and fingers 101 also pushes in chamber 107 by its further mobile hinge.In such state, fingers 101 can be in closed form, blocks the path of chamber 107 inner fluid.Finger valve 500 can be used for fractured well, and such as, as shown in Figure 5, in off position, pressure break mouth 105 will be opened, and allows proppant flow through pressure break mouth 105 from chamber 107 and enter stratum, thus pressure break is occurred.
Fig. 6 illustrates the finger valve 500 being in the pattern of opening.When sliding sleeve 200 promotes towards outer shroud 209 by biasing device 208, fingers 101 can be pushed away holds up.When using in fractured well, sliding sleeve 200 can be closed pressure break mouth 105 simultaneously and open and be produced mouth 106, allows material to flow through base tube 100.Be opened once produce mouth 106, just can start the extraction of oil and vapour.In one embodiment, multiple finger valve 500 can be placed in a well.When a finger valve is used to fractured well, another can use in downstream.In such embodiments, each produces mouth can have flap valve, thus allows the continuous pressure break in downstream and fracturing fluid do not pushed through production mouth.
Can be there is various change in the details of method of operating mentioned above, and do not depart from the scope of following claim.Some embodiments can in conjunction with herein as independent process the operation described.Similarly, one or more in described step can be omitted, and this depends on the concrete operations environment realizing the method.It should be understood that the above embodiments are illustrative, instead of restrictive.Such as, above-described embodiment can combination with one another use.Read description above, other embodiments many will be apparent for those of skill in the art.Therefore, scope of the present invention should in conjunction with appended claim, and all equivalents covered together with these claims are determined.In the appended claims, " to comprise " and the term such as " wherein " is used as the pure language equivalent of the corresponding term such as " comprising " and " wherein ".
Claims (20)
1. a finger valve, is characterized in that, described finger valve comprises:
Base tube, described base tube comprises:
Finger openings;
One or more fingers; And
One or more hinge, a described fingers is connected to described base tube by hinge described in each; And
Sliding sleeve, described sliding sleeve comprises:
Have the first sleeve of inner surface, described inner surface comprises space and lower laminate, and described first sleeve is operationally positioned at
Primary importance, described one or more fingers is pushed fastening position by wherein said lower laminate; And
The second place, wherein said space, around one of described one or more fingers, allows described one or more fingers in an open position.
2. finger valve according to claim 1, is characterized in that, described one or more finger valve comprises two or more fingers.
3. finger valve according to claim 1, is characterized in that, described finger valve also comprises one or more first biasing device, and one or more described fingers is biased into open position by the first biasing device described in each.
4. finger valve according to claim 3, is characterized in that, biasing device described at least one is the structure member of one of described hinge.
5. finger valve according to claim 3, is characterized in that, biasing device described at least one is spring.
6. finger valve according to claim 3, is characterized in that, biasing device described at least one is the magnetized spot of one of described fingers.
7. finger valve according to claim 3, is characterized in that, biasing device described at least one is the magnetized spot of described first sleeve.
8. finger valve according to claim 1, is characterized in that, described space comprises multiple hole, and each hole allows one or more described one or more fingers to move to described open position.
9. finger valve according to claim 1, is characterized in that, described finger valve also comprises:
Fixed muffle, described fixed muffle is fixed around described base tube and is close to the first side of described sliding sleeve; And
Actuator, described fixed muffle is connected to described sliding sleeve by described actuator, and described sliding sleeve can be moved to the described second place from described primary importance by described actuator.
10. finger valve according to claim 9, is characterized in that:
Described base tube also comprises pressure break mouth Part I;
Described sliding sleeve also comprises:
Second sleeve;
Pressure break mouth Part II; And
One or more arc-like sheet, described first sleeve is connected to described second sleeve by described one or more arc-like sheet, and wherein, the space between described one or more arc-like sheet limits described pressure break mouth Part II.
11. finger valves according to claim 10, is characterized in that, when described sliding sleeve is positioned at,
Described primary importance, described pressure break mouth Part I aligns with described pressure break mouth Part II, and
The described second place, described pressure break mouth Part I does not align with described pressure break mouth Part II.
12. finger valves according to claim 9, is characterized in that, described base tube also comprises production mouth.
13. finger valves according to claim 12, is characterized in that, when described sliding sleeve is positioned at
Described primary importance, described sliding sleeve blocks described production mouth; And
The described second place, described sliding sleeve does not block described production mouth.
14. finger valves according to claim 11, is characterized in that, described base tube also comprises production mouth.
15. finger valves according to claim 14, is characterized in that, when described sliding sleeve is positioned at
Described primary importance, described sliding sleeve blocks described production mouth; And
The described second place, described sliding sleeve does not block described production mouth.
16. finger valves according to claim, it is characterized in that, described actuator is the second biasing device.
17. finger valves according to claim 17, is characterized in that, described biasing device is spring.
18. 1 kinds of methods controlled by the flowing of tubing string, is characterized in that, said method comprising the steps of:
In tubing string, connect base tube, described base tube comprises:
Finger openings;
One or more fingers; And
One or more hinge, a described fingers is connected to described base tube by hinge described in each; And
Drive sliding sleeve from primary importance to the second place, described sliding sleeve comprises the first sleeve, and described first sleeve comprises inner surface, and described inner surface comprises space and lower laminate, wherein
Described primary importance, described one or more fingers is pushed fastening position by described lower laminate; And
The described second place, described space, around one of described one or more fingers, allows described one or more fingers in an open position.
19. methods according to claim 18, is characterized in that, comprise the step of fractured well.
20. methods according to claim 19, is characterized in that, comprise the subsequent step producing hydrocarbons from open position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2013/069576 WO2015039696A1 (en) | 2013-09-20 | 2013-09-20 | System and method for controlling flow in a pipe using a finger valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105164365A true CN105164365A (en) | 2015-12-16 |
| CN105164365B CN105164365B (en) | 2019-02-01 |
Family
ID=49230745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380074589.3A Active CN105164365B (en) | 2013-09-20 | 2013-09-20 | The system and method flowed in pipeline are controlled using finger valve |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP2904193B1 (en) |
| CN (1) | CN105164365B (en) |
| AU (1) | AU2013395452B2 (en) |
| BR (1) | BR112015011562B1 (en) |
| CA (1) | CA2886420C (en) |
| EA (1) | EA029960B1 (en) |
| MX (1) | MX2015000915A (en) |
| WO (1) | WO2015039696A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2360347A2 (en) * | 2010-02-11 | 2011-08-24 | I-Tec As | Expandable ball seat |
| CN102383760A (en) * | 2011-07-22 | 2012-03-21 | 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 | Design method of sliding sleeve switch |
| CN102418496A (en) * | 2011-08-17 | 2012-04-18 | 长沙市罡拓能源科技有限公司 | Self-balanced underground full-bore check valve |
| CN202431261U (en) * | 2011-10-03 | 2012-09-12 | 克拉玛依特隆油田技术服务有限责任公司 | Oil field horizontal well multi-section press cracking slide sleeve and opening tool |
| CN202544829U (en) * | 2012-04-24 | 2012-11-21 | 中国石油天然气股份有限公司 | Drivepipe sliding sleeve |
| US20120305265A1 (en) * | 2009-11-06 | 2012-12-06 | Weatherford/Lamb, Inc. | Cluster Opening Sleeves for Wellbore |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3768562A (en) * | 1972-05-25 | 1973-10-30 | Halliburton Co | Full opening multiple stage cementing tool and methods of use |
| US6230811B1 (en) * | 1999-01-27 | 2001-05-15 | Halliburton Energy Services, Inc. | Internal pressure operated circulating valve with annulus pressure operated safety mandrel |
| US6244342B1 (en) * | 1999-09-01 | 2001-06-12 | Halliburton Energy Services, Inc. | Reverse-cementing method and apparatus |
| US7240727B2 (en) * | 2004-02-20 | 2007-07-10 | Williams John R | Armored stripper rubber |
| US7237618B2 (en) * | 2004-02-20 | 2007-07-03 | Williams John R | Stripper rubber insert assembly |
-
2013
- 2013-09-20 AU AU2013395452A patent/AU2013395452B2/en active Active
- 2013-09-20 WO PCT/EP2013/069576 patent/WO2015039696A1/en active Application Filing
- 2013-09-20 EP EP13766028.8A patent/EP2904193B1/en not_active Not-in-force
- 2013-09-20 CN CN201380074589.3A patent/CN105164365B/en active Active
- 2013-09-20 CA CA2886420A patent/CA2886420C/en active Active
- 2013-09-20 EA EA201590096A patent/EA029960B1/en unknown
- 2013-09-20 MX MX2015000915A patent/MX2015000915A/en unknown
- 2013-09-20 BR BR112015011562-4A patent/BR112015011562B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120305265A1 (en) * | 2009-11-06 | 2012-12-06 | Weatherford/Lamb, Inc. | Cluster Opening Sleeves for Wellbore |
| EP2360347A2 (en) * | 2010-02-11 | 2011-08-24 | I-Tec As | Expandable ball seat |
| CN102383760A (en) * | 2011-07-22 | 2012-03-21 | 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 | Design method of sliding sleeve switch |
| CN102418496A (en) * | 2011-08-17 | 2012-04-18 | 长沙市罡拓能源科技有限公司 | Self-balanced underground full-bore check valve |
| CN202431261U (en) * | 2011-10-03 | 2012-09-12 | 克拉玛依特隆油田技术服务有限责任公司 | Oil field horizontal well multi-section press cracking slide sleeve and opening tool |
| CN202544829U (en) * | 2012-04-24 | 2012-11-21 | 中国石油天然气股份有限公司 | Drivepipe sliding sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015039696A8 (en) | 2015-06-04 |
| BR112015011562A2 (en) | 2017-07-11 |
| EA029960B1 (en) | 2018-06-29 |
| WO2015039696A1 (en) | 2015-03-26 |
| CA2886420A1 (en) | 2015-03-26 |
| MX2015000915A (en) | 2017-11-30 |
| CN105164365B (en) | 2019-02-01 |
| AU2013395452A1 (en) | 2015-04-09 |
| CA2886420C (en) | 2017-03-21 |
| BR112015011562B1 (en) | 2021-08-31 |
| EP2904193A1 (en) | 2015-08-12 |
| EA201590096A1 (en) | 2016-01-29 |
| AU2013395452B2 (en) | 2017-10-12 |
| EP2904193B1 (en) | 2019-01-09 |
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