CN107869326A - Switching sliding sleeve - Google Patents
Switching sliding sleeve Download PDFInfo
- Publication number
- CN107869326A CN107869326A CN201610849478.0A CN201610849478A CN107869326A CN 107869326 A CN107869326 A CN 107869326A CN 201610849478 A CN201610849478 A CN 201610849478A CN 107869326 A CN107869326 A CN 107869326A
- Authority
- CN
- China
- Prior art keywords
- overcoat
- sliding sleeve
- switching sliding
- sleeve
- inner 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.)
- Pending
Links
- 239000004576 sand Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 24
- 238000010276 construction Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003079 shale oil Substances 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000011218 segmentation Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water 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
- 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
Landscapes
- 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)
- Sealing Devices (AREA)
Abstract
The present invention discloses a kind of switching sliding sleeve, wherein, the switching sliding sleeve includes：The top connection being connected with upper sleeve；The lower contact being connected with lower parts casing pipe；Hollow overcoat is connected between the top connection and the lower contact, the overcoat is provided with multiple spaced openings along its circumference；Being arranged with the overcoat can relatively described overcoat slip and the inner sleeve for controlling the opening to open or close.The switching sliding sleeve of the present invention can be simple in construction, repeat switch opening can be realized, function with segmentation control water, the unlimited pole sectional well completion of shale oil gas, tight sand oil gas horizontal well, pressure break early stage and later stage control water can be realized, so as to improve oil gas well recovery, that is, realize the low purpose of completion cost.
Description
Technical field
The invention belongs to the completion of Oil/gas Well and production technical field, is segmented and presses especially for horizontal well in segments completion interval of well
Split and control the switching sliding sleeve in water.
Background technology
With the exploration and development of the unconventional petroleum resourceses such as shale gas, shale oil, staged fracturing of horizontal well renovation technique quilt
Effectively implement.Reservoir fracturing improvement technology is that the horizontal wells such as shale oil gas, tight stratum are divided into multistage, then by formation breakdown
Into many cracks, expand the drainage area of layer of oil gas production, the rate of oil and gas recovery is improved, so as to improve well yield.Horizontal well bore hole
Staged fracturing technology is a kind of and unconventionaloil pool field widely popularization and application at home and abroad in reservoir fracturing improvement, wherein,
Flow channels are established by sliding sleeve and each section of interval.Pressure break can be carried out to different layers position by detail design in this technology,
The sliding sleeve instrument for establishing flow channels in completion tubular column with stratum is one of key technology.
The multistage pitching sliding sleeve that current sectional well completion is mainly used with sliding sleeve, using the different low-density pressure break ball of diameter
Suppressed after being shipped to sliding sleeve tee by well head so as to control the unlatching of each section of sliding sleeve, so as to realize multistage piecewise separate stratum fracfturing,
With it is easy for construction the advantages of, at present 7 " × 41/2" sleeve pipe realizes maximum 25 grades of partial pressure series, 95/8″×51/2" set
What pipe realized maximum 30 grades of partial pressure series, ball sealer differential 0.125 ", at present newest have been carried out 1/16 " is differential.
Problems be present in multistage pitching sliding sleeve：1) by pressure break ball and ball seat there must be it is certain it is differential limited, nothing
Method realizes unlimited pole staged fracturing.2) sliding sleeve can only can not be closed by hydraulic open, uncontrollable after Oil/gas Well water outlet.3)
Pressure break ball exist influenceed by medium in pit shaft, can not effective sealed ball seat, can not effectively open sometimes.4) ball of sliding sleeve
Seat, makes completion tubular column drifting smaller, and later stage operation is difficult.
For the defects of pitching sliding sleeve is present in the prior art, it is necessary to provide a kind of new switching sliding sleeve.
The content of the invention
To solve the above problems, the present invention proposes a kind of switching sliding sleeve, its is simple in construction, can realize shale oil gas, cause
Close sandstone oil gas horizontal well unlimited pole sectional well completion, pressure break early stage and later stage control water, so as to improve oil gas well recovery.
To achieve the above object, the present invention provides a kind of switching sliding sleeve, wherein, the switching sliding sleeve includes：
The top connection being connected with upper sleeve；
The lower contact being connected with lower parts casing pipe；
Hollow overcoat is connected between the top connection and the lower contact, the overcoat is provided with multiple along its circumference
Every the opening of setting；
Being arranged with the overcoat can relatively described overcoat slip and the inner sleeve for controlling the opening to open or close.
Switching sliding sleeve as described above, wherein, sand stop ring is provided between the overcoat and the inner sleeve.
Switching sliding sleeve as described above, wherein, the sand stop ring is provided with sand block pressure close to the side of the overcoat upper end
Ring.
Switching sliding sleeve as described above, wherein, the inner sleeve and the overcoat are connected through a screw thread.
Switching sliding sleeve as described above, wherein, it is arranged with respectively on the outer wall of the upper end of the inner sleeve and the outer wall of lower end
Upper sealing ring and lower sealing ring.
Switching sliding sleeve as described above, wherein, the overcoat is circumferentially equally spaced provided with 6~10 circulations along it
Hole.
Switching sliding sleeve as described above, wherein, the overcoat and the top connection are connected through a screw thread.
Switching sliding sleeve as described above, wherein, sealing ring is provided between the overcoat and the top connection.
Switching sliding sleeve as described above, wherein, the overcoat and the lower contact are connected through a screw thread.
Switching sliding sleeve as described above, wherein, sealing ring is provided between the overcoat and the lower contact.
The switching sliding sleeve of the present invention is simple in construction, can realize repeat switch opening, has the function of segmentation control water, energy
The unlimited pole sectional well completion of shale oil gas, tight sand oil gas horizontal well, pressure break early stage and later stage control water are enough realized, so as to improve oil
Gas well recovery ratio, that is, realize the low purpose of completion cost；The sliding sleeve of the present invention realizes full-bore with sleeve pipe simultaneously, can meet to arrange greatly
Measure pressing crack construction requirement；And the switching sliding sleeve of the present invention being capable of the high voltage bearing advantage of high temperature resistant.
Brief description of the drawings
Accompanying drawing described here is only used for task of explanation, and is not intended in any way to limit model disclosed by the invention
Enclose.In addition, shape and proportional sizes of each part in figure etc. are only schematical, the understanding of the present invention is used to help, and
It is not the specific shape and proportional sizes for limiting each part of the present invention.Those skilled in the art under the teachings of the present invention, can
To select various possible shapes and proportional sizes to implement the present invention as the case may be.
Fig. 1 is the structural representation of the switching sliding sleeve of the present invention.
Description of reference numerals：
1- top connections；13- sealing rings；
2- lower contacts；23- sealing rings；
3- overcoats；31- openings；
4- inner sleeves；
5- sand stop rings；
6- sand block pressure rings.
Embodiment
With reference to the description of accompanying drawing and the specific embodiment of the invention, details of the invention can be clearly understood.But
It is the embodiment of invention described herein, is only used for explaining the purpose of the present invention, and can not understands in any way
Into being limitation of the present invention.Under the teachings of the present invention, technical staff is contemplated that any possible change based on the present invention
Shape, these are regarded as belonging to the scope of the present invention, and below in conjunction with accompanying drawing, the invention will be further described.
As shown in figure 1, the switching sliding sleeve of the present invention includes：The top connection 1 to connect with upper sleeve, connect with lower parts casing pipe
Lower contact 2, hollow overcoat 3 is connected between top connection 1 and lower contact 2, overcoat 3 is provided with multiple spaced along its circumference
The inside of overcoat 3 is connected by the opening 31 of setting, opening 31 with the outside of overcoat 3, and being arranged with overcoat 3 can be relatively outer
The inner sleeve 4 that set 3 slides up and down, inner sleeve 4 control opening 31 to open or close about 3 with respect to overcoat during relative slip,
I.e. inner sleeve 4 can control the inside of overcoat 3 to connect or close with the exterior space of overcoat 3.
Specifically, in the present invention, overcoat 3 and top connection 1 are connected through a screw thread, further, to ensure overcoat 3 and upper
The sealing of the junction of joint 1, sealing ring 13 is provided between overcoat 3 and top connection 1.In the present invention, overcoat 3 and lower contact
Easily overcoat 3 and lower contact 2 are linked together again by threaded connection, such connected mode between 2, further
Ground, for the sealing between increase lower contact 2 and overcoat 3, the junction between overcoat 3 and lower contact 2 is provided with sealing ring 23.
In the present invention, overcoat 3 is circumferentially equally spaced provided with 6~10 openings 31 along it, in a specific implementation
In example, overcoat 3 is circumferentially equally spaced provided with 8 openings 31 along it.
It is threadedly coupled specifically, being used between inner sleeve 4 and overcoat 3, i.e. the internal whorl of the external screw thread of inner sleeve 4 and overcoat 3
Connecting, the relative overcoat 3 of the energy of inner sleeve 4 slides up and down, i.e., realizes that the relative overcoat 3 of the energy of inner sleeve 4 slides up and down by rotating inner sleeve 4,
In the present invention, the outer wall at outer wall and the lower end of overcoat 4 at the upper end of inner sleeve 4 is respectively equipped with upper sealing ring and lower sealing ring, and on
The distance between sealing ring and lower sealing ring are more than the length of opening 31, so as to realize by inner sleeve 4 with respect to overcoat phase about 3
Opening 31 is controlled to open or close during to slip.Under original state, the upper sealing ring of inner sleeve 4 is located at the stream of overcoat 3
The top of through hole 31, now the lower sealing ring of inner sleeve 4 be located at the lower section of the opening 31 of overcoat 3, i.e., now the inside of overcoat 3 is empty
Between be off with the exterior space of overcoat 3, namely inner sleeve 4 closes opening 31, rotates inner sleeve 4, makes inner sleeve 4 relatively outer
3 slide downwards are covered, until the external screw thread of inner sleeve 4 slides into the externally threaded least significant end of overcoat 3, i.e. inner sleeve 4 can not continue downwards
Slide, now, the upper sealing ring of inner sleeve 4 is located at the lower section of the opening 31 of overcoat 3, i.e. opening 31 is no longer sealed by inner sleeve 4,
The inside and outside connection for opening opening 31 by the switching sliding sleeve of the present invention is realized, so as to realize fracturing process.Closed if wanting to realize
Opening 31, inner sleeve 4 is reversely rotated, that is, reversely rotating inner sleeve 4 makes inner sleeve 4 with respect to the upward sliding of overcoat 3, until inner sleeve 4
Upper sealing ring be located at overcoat 3 opening 31 top, i.e., inner sleeve 4 again return to initial position.
Further, in the upper end of overcoat 3 of the present invention, sand stop ring 5 is provided between overcoat 3 and inner sleeve 4, is prevented so as to realize
Entered in fracturing process sandstone between overcoat 3 and inner sleeve 4, sandstone, which enters, can prevent overcoat 3 and interior between overcoat 3 and inner sleeve 4
Relative slip between set 4, that is, sand card or ring wear phenomenon occur when preventing from closing the sliding sleeve of the present invention.
Further, the upside of sand stop ring 5 is provided with sand block pressure ring 6, i.e. sand stop ring 5 is set close to the side of the upper end of overcoat 3
There is sand block pressure ring 6, sand stop ring 5 is pushed down so as to realize, that is, prevent sand stop ring 5 from being skidded off between overcoat 3 and inner sleeve 4.
The operating principle and use process of the switching sliding sleeve of the present invention are as follows：Lower contact 2 and overcoat 3 are passed through into screw thread first
Connection, then loads inner sleeve 4 into overcoat 3, and the external screw thread of inner sleeve 4 connects with the internal thread of overcoat 3, screws inner sleeve 4, make inner sleeve
4 are in original position, i.e. the upper sealing of inner sleeve 4 is located at the top of the opening 31 of overcoat 3, and now opening 31 is pacified by inner sleeve 3
It is hermetically sealed, then sand stop ring 5 and sand block pressure ring 6 are installed again, finally connect overcoat 3 and top connection 1, will using a kind of opening instrument
The switching sliding sleeve of the present invention is opened, and the opening instrument includes upper and lower telescopic claw, and top telescopic claw bites top connection 1 or top set
Pipe, bottom telescopic claw bite inner sleeve 4, are moved down by the rotation of rotational movement inner sleeve 4 of bottom telescopic claw, until inner sleeve 4
Upper sealing ring is located at the top of opening 31, and now opening 31 is in open mode, connects the interior of switching sliding sleeve of the invention
Outside, pressure break is realized, when closing the sliding sleeve of the present invention, reversely rotates the inner sleeve 4 of the present invention.
The switching sliding sleeve of the present invention and sleeve pipe full-bore, can meet the requirement of huge discharge pressing crack construction, sliding sleeve of the invention
Separate interval by cementing the well, the staged fracturing of any section can be achieved, the opening instrument of sliding sleeve of the invention is conveyed by cable pump
Transmitting switch sliding sleeve, realize that construction is quick continuous, and the sliding sleeve of the present invention is attached most importance to strike-on switch, has segmentation control water function,
And the sliding sleeve of the present invention is made of exotic material, can realize the effect of high-temperature-resistant high-pressure-resistant, by using the cunning of the present invention
Set, can reduce completion cost.
Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the present invention
Under, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as being rushed in the absence of structure
Prominent, the every technical characteristic being previously mentioned in each embodiment can combine in any way.The invention is not limited in text
Disclosed in specific embodiment, but all technical schemes including falling within the scope of the appended claims.
Claims (10)
1. a kind of switching sliding sleeve, it is characterised in that the switching sliding sleeve includes：
The top connection being connected with upper sleeve；
The lower contact being connected with lower parts casing pipe；
Hollow overcoat is connected between the top connection and the lower contact, the overcoat is provided with multiple intervals along its circumference and set
The opening put；
Being arranged with the overcoat can relatively described overcoat slip and the inner sleeve for controlling the opening to open or close.
2. switching sliding sleeve as claimed in claim 1, it is characterised in that sand stop ring is provided between the overcoat and the inner sleeve.
3. switching sliding sleeve as claimed in claim 2, it is characterised in that the sand stop ring is close to the side of the overcoat upper end
Provided with sand block pressure ring.
4. switching sliding sleeve as described in any of claims 1, it is characterised in that the inner sleeve and the overcoat pass through screw thread
Connection.
5. switching sliding sleeve as claimed in claim 4, it is characterised in that on the outer wall of the upper end of the inner sleeve and the outer wall of lower end
Upper sealing ring and lower sealing ring are arranged with respectively.
6. the switching sliding sleeve as any one of claim 1 to 5, it is characterised in that the overcoat is circumferential at equal intervals along it
Ground is provided with 6~10 openings.
7. the switching sliding sleeve as described in any one in claim 1 to 5, it is characterised in that the overcoat and the top connection
It is connected through a screw thread.
8. switching sliding sleeve as claimed in claim 7, it is characterised in that sealing is provided between the overcoat and the top connection
Circle.
9. the switching sliding sleeve as described in any one in claim 1 to 5, it is characterised in that the overcoat and the lower contact
It is connected through a screw thread.
10. switching sliding sleeve as claimed in claim 9, it is characterised in that sealing is provided between the overcoat and the lower contact
Circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610849478.0A CN107869326A (en) | 2016-09-23 | 2016-09-23 | Switching sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610849478.0A CN107869326A (en) | 2016-09-23 | 2016-09-23 | Switching sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107869326A true CN107869326A (en) | 2018-04-03 |
Family
ID=61751460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610849478.0A Pending CN107869326A (en) | 2016-09-23 | 2016-09-23 | Switching sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107869326A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979592A (en) * | 2018-08-03 | 2018-12-11 | 西南石油大学 | A kind of mechanical switch sliding sleeve of bushing and adjust tool |
| CN110454129A (en) * | 2019-08-08 | 2019-11-15 | 中国石油天然气股份有限公司 | Gas well separate-layer fracturing and water control integrated process pipe column |
| CN110725666A (en) * | 2018-07-17 | 2020-01-24 | 中国石油天然气股份有限公司 | Method for repeatedly opening and closing electric sliding sleeve and replacing protective liquid for mine gas injection pipeline |
| CN111188591A (en) * | 2020-03-20 | 2020-05-22 | 山东普瑞思德石油技术有限公司 | Water control device |
| CN111364952A (en) * | 2018-12-25 | 2020-07-03 | 中国石油天然气股份有限公司 | Horizontal well injection and production system |
| CN112302595A (en) * | 2019-07-24 | 2021-02-02 | 中国石油天然气股份有限公司 | Rotary open-close type layered oil production pipe column |
| CN113756774A (en) * | 2020-06-05 | 2021-12-07 | 中国石油化工股份有限公司 | Fracturing and water control integrated pipe column and method for open hole well |
| CN115162984A (en) * | 2022-07-26 | 2022-10-11 | 中石化石油工程技术服务有限公司 | Mechanical switch sliding sleeve device capable of transmitting torque |
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| WO2009132462A1 (en) * | 2008-04-29 | 2009-11-05 | Packers Plus Energy Services Inc. | Downhole sub with hydraulically actuable sleeve valve |
| CN102373900A (en) * | 2011-09-30 | 2012-03-14 | 中国石油化工股份有限公司 | Staged fracturing well completion method using hydraulic-controlled switch to open/close controllable valves |
| CN103291271A (en) * | 2013-06-08 | 2013-09-11 | 四机赛瓦石油钻采设备有限公司 | Fracturing slide sleeve capable of being opened and closed for many times |
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| CN203463073U (en) * | 2013-08-15 | 2014-03-05 | 中国石油集团长城钻探工程有限公司 | Sleeve pipe slide sleeve capable of being repeatedly opened and closed |
| US9004180B2 (en) * | 2012-03-20 | 2015-04-14 | Team Oil Tools, L.P. | Method and apparatus for actuating a downhole tool |
| CN204457619U (en) * | 2014-12-25 | 2015-07-08 | 中国石油化工股份有限公司 | Rotary full-bore fracturing switch |
-
2016
- 2016-09-23 CN CN201610849478.0A patent/CN107869326A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009132462A1 (en) * | 2008-04-29 | 2009-11-05 | Packers Plus Energy Services Inc. | Downhole sub with hydraulically actuable sleeve valve |
| CN201334895Y (en) * | 2009-01-06 | 2009-10-28 | 四机赛瓦石油钻采设备有限公司 | Communicating sliding sleeve |
| CN102373900A (en) * | 2011-09-30 | 2012-03-14 | 中国石油化工股份有限公司 | Staged fracturing well completion method using hydraulic-controlled switch to open/close controllable valves |
| US9004180B2 (en) * | 2012-03-20 | 2015-04-14 | Team Oil Tools, L.P. | Method and apparatus for actuating a downhole tool |
| CN103291271A (en) * | 2013-06-08 | 2013-09-11 | 四机赛瓦石油钻采设备有限公司 | Fracturing slide sleeve capable of being opened and closed for many times |
| CN203362115U (en) * | 2013-07-11 | 2013-12-25 | 中国石油集团渤海钻探工程有限公司 | Double-direction starting type sliding sleeve on-off tool |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110725666A (en) * | 2018-07-17 | 2020-01-24 | 中国石油天然气股份有限公司 | Method for repeatedly opening and closing electric sliding sleeve and replacing protective liquid for mine gas injection pipeline |
| CN108979592A (en) * | 2018-08-03 | 2018-12-11 | 西南石油大学 | A kind of mechanical switch sliding sleeve of bushing and adjust tool |
| CN108979592B (en) * | 2018-08-03 | 2021-06-15 | 西南石油大学 | Mechanical switch type sleeve sliding sleeve and adjusting tool |
| CN111364952A (en) * | 2018-12-25 | 2020-07-03 | 中国石油天然气股份有限公司 | Horizontal well injection and production system |
| CN112302595A (en) * | 2019-07-24 | 2021-02-02 | 中国石油天然气股份有限公司 | Rotary open-close type layered oil production pipe column |
| CN110454129A (en) * | 2019-08-08 | 2019-11-15 | 中国石油天然气股份有限公司 | Gas well separate-layer fracturing and water control integrated process pipe column |
| CN110454129B (en) * | 2019-08-08 | 2022-03-01 | 中国石油天然气股份有限公司 | Gas well separate-layer fracturing and water control integrated process pipe column |
| CN111188591A (en) * | 2020-03-20 | 2020-05-22 | 山东普瑞思德石油技术有限公司 | Water control device |
| CN113756774A (en) * | 2020-06-05 | 2021-12-07 | 中国石油化工股份有限公司 | Fracturing and water control integrated pipe column and method for open hole well |
| CN115162984A (en) * | 2022-07-26 | 2022-10-11 | 中石化石油工程技术服务有限公司 | Mechanical switch sliding sleeve device capable of transmitting torque |
| CN115162984B (en) * | 2022-07-26 | 2024-02-13 | 中石化石油工程技术服务有限公司 | Mechanical switch sliding sleeve device capable of transmitting torque |
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Application publication date: 20180403 |