CN201386539Y - Fracture used high-pressure sand blast sliding sleeve - Google Patents
Fracture used high-pressure sand blast sliding sleeve Download PDFInfo
- Publication number
- CN201386539Y CN201386539Y CN200820123843U CN200820123843U CN201386539Y CN 201386539 Y CN201386539 Y CN 201386539Y CN 200820123843 U CN200820123843 U CN 200820123843U CN 200820123843 U CN200820123843 U CN 200820123843U CN 201386539 Y CN201386539 Y CN 201386539Y
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- central tube
- sliding sleeve
- overcoat
- passage
- fracture
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Abstract
A fracture used high-pressure sand blast sliding sleeve is applied to oil layer fracture construction in oil fields. An outer sleeve is cylindrical; oil tube internal threads are formed at the upper end and the lower end of the outer sleeve; and the utility model is characterized in that a side wing channel, namely an elongated through-hole, is formed on the side wall of the outer sleeve. A central cylinder is fixed on the inner wall of the outer sleeve, and provided with a central hole. The center at the top part of the central cylinder is an inner conical surface. The diameter of a steel ball is larger than the central hole of the central cylinder. Two groups of sealing rings are arranged on the outer wall of the central cylinder. The effects are as follows: the fracture used high-pressure sand blast sliding sleeve is fixed in a layered fracturing string, the side wing channel can be opened through throwing the ball and compressing, and the communication between oil jackets can be completed. The structure is simple and easy to dissemble and assemble; and the side wing channel is controlled to be opened or closed under the control of hydraulic pressure, so that the site operation is easy. The fracture used high-pressure sand blast sliding sleeve is suitable for oil well operations, such as mechanical water locating-plugging, layered (selection) fracture, acidification and the like.
Description
Technical field
The utility model relates to the oilfield exploitation field, and the supporting special tool in particularly a kind of formation fracturing tubing string is the pitching sliding sleeve that a kind of formation fracturing is used.
Background technology
In the formation fracturing process of oil field, often need utilize tubing transmission pressure to open the flank passage, link up between the oil jacket of realization target zone.Making to link up between the oil jacket generally adopts sliding sleeve to finish.At present, oil machinery is looked in the operations such as water blockoff, branch (choosing) lamination split, acidifying, needs to adopt high pressure sandblast pressure break.Common pitching sliding sleeve bearing capacity is low, and anti-impact erosion is also all corresponding with sealability lower, and the flank channels designs is unreasonable, can't satisfy the requirement of high pressure sandblast pressing crack construction, can not realize the communication between the oil jacket of target zone.And a kind of suitable sliding sleeve of design just seems particularly important in high pressure sandblast pressure break.
Summary of the invention
The purpose of this utility model is: provide a kind of pressure break with high pressure sandblast sliding sleeve, be used at the separate stratum fracfturing tubing string, suppress by pitching and realize opening the flank passage, finish between the oil jacket and link up.It is low to overcome common pitching sliding sleeve bearing capacity, and anti-impact erosion and sealability are low; The flank channels designs is unreasonable, can't satisfy the deficiency of high pressure sandblast pressing crack construction.
The technical solution adopted in the utility model is: pressure break high pressure sandblast sliding sleeve, mainly form by overcoat, central tube, shear pin, sealing ring and steel ball, overcoat is cylindric, overcoat has the oil pipe internal thread in two ends up and down, it is characterized in that: the flank passage is arranged on the sleeve side wall, and the flank passage is the strip through hole.Inwall at overcoat is fixed with central tube.Central tube has centre bore.The top center of central tube is an internal conical surface.Steel ball size is greater than the centre bore of central tube.Steel ball is fallen on the internal conical surface, can stop up the centre bore of central tube.Two groups of sealing rings are arranged on the outer wall of central tube.The position of two groups of sealing rings is respectively in the top and bottom of overcoat inboard wing passage.
The fixed structure of described central tube is: screw is arranged on overcoat wall, and corresponding screwhole position has holddown groove on central tube.The shear pin outer wall has screw thread.Shear pin screws in screw and fixing hole, and overcoat and central tube are fixed together.The quantity of shear pin is 2～8.
The quantity of described flank passage is 6, and being shaped as of flank passage is trapezoidal, has improved anti-erosion ability.
In addition, the internal conical surface of central tube top center improves anti-erosion ability through surfacing, guarantees the sealing effectiveness with steel ball; The flank passage improves the erosion ability of flank passage through surfacing; Form sealing between steel ball and the central tube taper seat, suppress after the working design pressure shear pin and cut off central tube and glide, open the flank passage.Increase or reduce the quantity of shear pin, can regulate the pump pressure size that central tube begins to glide.
The summary pressure break helps to understand the utility model with the use of high pressure sandblast sliding sleeve.Drop into steel ball from oil pipe, heavy 30-50 minute of marquis.Fall when steel ball on the taper seat of central tube, begin to suppress by oil pipe, set when opening pressure when the pressure on steel ball top is elevated to pressing crack construction, cut off shear pin, central tube glides along the inwall of overcoat, opens the flank passage and realizes linking up between the oil jacket.Meanwhile, steel ball has stopped up the inner passage of oil pipe, forms one-way sealing, guarantees that the high pressure fracturing fluid that ground pumps into flows out oil pipe from the flank passage.
The beneficial effects of the utility model are that pressure break is fixed in the separate stratum fracfturing tubing string with high pressure sandblast sliding sleeve, suppresses by pitching and realizes opening the flank passage, finishes between the oil jacket and links up.Simple in structure, quick detachable and the assembling; By the unlatching of hydraulic control flank passage, execute-in-place is easy.Be applicable to that oil machinery looks in the operations such as water blockoff, branch (choosing) lamination split, acidifying.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model pressure break with high pressure sandblast sliding sleeve.
Among the figure: 1. overcoat, 2. central tube, 3. shear pin, 4. sealing ring, 5. steel ball.
The specific embodiment
Embodiment 1: the pressure break that is 100mm with an external diameter is an example with high pressure sandblast sliding sleeve, and the utility model is described in further detail.
Consult Fig. 1.The utility model pressure break high pressure sandblast sliding sleeve, overcoat 1 is cylindric, and external diameter is 100mm, and length is 470mm.Internal diameter is 66mm.Overcoat has the oil pipe internal thread in two ends about in the of 1, and its top and bottom can be connected with oil pipe.Be evenly distributed with 6 flank passages 6 on overcoat 1 sidewall, flank passage 6 is the strip through hole.The length of flank passage 6 is 70mm, and width is 15mm.
Inwall at overcoat 1 is fixed with central tube 2.The length of central tube 2 is 165mm.Central tube 2 has centre bore, and center-hole diameter is 42mm.The top center of central tube 2 is an internal conical surface, and the tapering of internal conical surface is 50 degree.Steel ball 5 diameters are greater than the centre bore of central tube 2, and steel ball 5 diameters are 45mm or 48mm.
Two groups of sealing rings 4 are arranged on the outer wall of central tube 2, and every group of sealing ring has two.The position of two groups of sealing rings 4 is respectively in flank passage 6 top and bottom of overcoat 1.
The fixed structure of described central tube 2 is: the screw of 8 M8 is arranged on overcoat 1 wall, and corresponding screwhole position has 1 holddown groove on central tube 2.Shear pin 3 outer walls have the screw buckle of M8.Shear pin 3 screws in screw and fixing hole, and overcoat 1 and central tube 2 are fixed together.The quantity of shear pin 3 is 3.
The quantity of described flank passage 6 is 6, and being shaped as of flank passage 6 is trapezoidal.
Claims (4)
1, a kind of pressure break high pressure sandblast sliding sleeve, mainly by overcoat (1), central tube (2), shear pin (3), sealing ring (4) and steel ball (5) are formed, overcoat (1) is cylindric, overcoat (1) two ends up and down has the oil pipe internal thread, it is characterized in that: on overcoat (1) sidewall flank passage (6) is arranged, flank passage (6) is the strip through hole, inwall at overcoat (1) is fixed with central tube (2), central tube (2) has centre bore, the top center of central tube (2) is an internal conical surface, steel ball (5) diameter is greater than the centre bore of central tube (2), two groups of sealing rings (4) are arranged on the outer wall of central tube (2), and the position of two groups of sealing rings (4) is respectively in the top and bottom of overcoat (1) inboard wing passage (6).
2, pressure break according to claim 1 high pressure sandblast sliding sleeve, it is characterized in that: the fixed structure of described central tube (2) is: on overcoat (1) wall screw is arranged, go up corresponding screwhole position at central tube (2) holddown groove is arranged, shear pin (3) outer wall has screw thread, shear pin (3) screws in screw and fixing hole, and the quantity of shear pin (3) is 2～8.
3, pressure break according to claim 1 high pressure sandblast sliding sleeve, it is characterized in that: the quantity of described flank passage (6) is 6, being shaped as of flank passage (6) is trapezoidal.
4, according to claim 1,2 or 3 described pressure breaks high pressure sandblast sliding sleeve, it is characterized in that: the width of flank passage (6) is 15mm, and the length of flank passage (6) is the 70mm millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820123843U CN201386539Y (en) | 2008-11-20 | 2008-11-20 | Fracture used high-pressure sand blast sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820123843U CN201386539Y (en) | 2008-11-20 | 2008-11-20 | Fracture used high-pressure sand blast sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386539Y true CN201386539Y (en) | 2010-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820123843U Expired - Fee Related CN201386539Y (en) | 2008-11-20 | 2008-11-20 | Fracture used high-pressure sand blast sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386539Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041974A (en) * | 2011-01-05 | 2011-05-04 | 深圳市远东石油钻采工程有限公司 | Bypass short-circuit structure of abandoned deep water well cutting device and cementing plug method thereof |
| CN102400661A (en) * | 2011-11-25 | 2012-04-04 | 中国石油天然气股份有限公司 | Balance valve for multi-layer fracturing operation of continuous oil pipe |
| CN102619494A (en) * | 2012-04-16 | 2012-08-01 | 江苏如通石油机械股份有限公司 | Multi-section sliding sleeve type sand jet perforating and fracturing tool |
| CN102777163A (en) * | 2012-07-20 | 2012-11-14 | 中国石油化工股份有限公司 | Method for opening sand-blasting hole of horizontal well by coiled tubing |
| CN102839956A (en) * | 2011-06-22 | 2012-12-26 | 中国石油化工股份有限公司 | Sliding sleeve type crushing assembly, device using assembly and using method of device |
| CN102839944A (en) * | 2011-06-22 | 2012-12-26 | 中国石油化工股份有限公司 | Sliding sleeve type fracturing module, device including the module and method of using the device |
| CN102966331A (en) * | 2011-09-01 | 2013-03-13 | 蒂姆石油工具有限公司 | Valve for hydraulic fracturing through cement outside casing |
| CN103362488A (en) * | 2012-03-31 | 2013-10-23 | 大港油田集团有限责任公司 | Sand blasting device allowing fracturing sliding sleeve to be fished |
| CN103415674A (en) * | 2011-02-10 | 2013-11-27 | 哈里伯顿能源服务公司 | System and method for servicing a wellbore |
| CN105422075A (en) * | 2014-08-26 | 2016-03-23 | 中国石油天然气股份有限公司 | Sand blower |
| CN107201879A (en) * | 2017-07-28 | 2017-09-26 | 中国石油集团渤海钻探工程有限公司 | Integral type is exempted to bore ball seat guide shoe |
| CN107429556A (en) * | 2014-10-02 | 2017-12-01 | Sc资产有限公司 | For will expose in succession to allow the system along the pit shaft injecting fluid along the port of pit shaft |
| CN109252845A (en) * | 2018-10-15 | 2019-01-22 | 中国石油集团渤海钻探工程有限公司 | A kind of solvable slide bushing assembly of separate stratum fracfturing full-bore |
-
2008
- 2008-11-20 CN CN200820123843U patent/CN201386539Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041974B (en) * | 2011-01-05 | 2013-07-31 | 深圳市远东石油钻采工程有限公司 | Bypass short-circuit structure of abandoned deep water well cutting device and cementing plug method thereof |
| CN102041974A (en) * | 2011-01-05 | 2011-05-04 | 深圳市远东石油钻采工程有限公司 | Bypass short-circuit structure of abandoned deep water well cutting device and cementing plug method thereof |
| CN103415674B (en) * | 2011-02-10 | 2016-02-17 | 哈里伯顿能源服务公司 | For the system and method for well bore operation |
| CN103415674A (en) * | 2011-02-10 | 2013-11-27 | 哈里伯顿能源服务公司 | System and method for servicing a wellbore |
| CN102839956B (en) * | 2011-06-22 | 2015-04-01 | 中国石油化工股份有限公司 | Sliding sleeve type crushing assembly, device using assembly and using method of device |
| CN102839944B (en) * | 2011-06-22 | 2015-04-01 | 中国石油化工股份有限公司 | Sliding sleeve type fracturing module, device including the module and method of using the device |
| CN102839956A (en) * | 2011-06-22 | 2012-12-26 | 中国石油化工股份有限公司 | Sliding sleeve type crushing assembly, device using assembly and using method of device |
| CN102839944A (en) * | 2011-06-22 | 2012-12-26 | 中国石油化工股份有限公司 | Sliding sleeve type fracturing module, device including the module and method of using the device |
| CN102966331A (en) * | 2011-09-01 | 2013-03-13 | 蒂姆石油工具有限公司 | Valve for hydraulic fracturing through cement outside casing |
| CN102400661A (en) * | 2011-11-25 | 2012-04-04 | 中国石油天然气股份有限公司 | Balance valve for multi-layer fracturing operation of continuous oil pipe |
| CN102400661B (en) * | 2011-11-25 | 2014-04-02 | 中国石油天然气股份有限公司 | Balance valve for multi-layer fracturing operation of continuous oil pipe |
| CN103362488A (en) * | 2012-03-31 | 2013-10-23 | 大港油田集团有限责任公司 | Sand blasting device allowing fracturing sliding sleeve to be fished |
| CN103362488B (en) * | 2012-03-31 | 2017-02-15 | 大港油田集团有限责任公司 | Sand blasting device allowing fracturing sliding sleeve to be fished |
| CN102619494A (en) * | 2012-04-16 | 2012-08-01 | 江苏如通石油机械股份有限公司 | Multi-section sliding sleeve type sand jet perforating and fracturing tool |
| CN102777163A (en) * | 2012-07-20 | 2012-11-14 | 中国石油化工股份有限公司 | Method for opening sand-blasting hole of horizontal well by coiled tubing |
| CN105422075A (en) * | 2014-08-26 | 2016-03-23 | 中国石油天然气股份有限公司 | Sand blower |
| CN107429556A (en) * | 2014-10-02 | 2017-12-01 | Sc资产有限公司 | For will expose in succession to allow the system along the pit shaft injecting fluid along the port of pit shaft |
| CN107201879A (en) * | 2017-07-28 | 2017-09-26 | 中国石油集团渤海钻探工程有限公司 | Integral type is exempted to bore ball seat guide shoe |
| CN109252845A (en) * | 2018-10-15 | 2019-01-22 | 中国石油集团渤海钻探工程有限公司 | A kind of solvable slide bushing assembly of separate stratum fracfturing full-bore |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20121120 |