CN204851170U - Oil gas well well cementation staged fracturing bowling sliding sleeve - Google Patents
Oil gas well well cementation staged fracturing bowling sliding sleeve Download PDFInfo
- Publication number
- CN204851170U CN204851170U CN201520476212.7U CN201520476212U CN204851170U CN 204851170 U CN204851170 U CN 204851170U CN 201520476212 U CN201520476212 U CN 201520476212U CN 204851170 U CN204851170 U CN 204851170U
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- sliding sleeve
- central tube
- shell body
- tail pipe
- oil gas
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Abstract
The utility model discloses an oil gas well well cementation staged fracturing bowling sliding sleeve, include that bowling sliding sleeve body and top -down suit that the top connection that connects gradually through the screw thread, well body, lower clutch constitute are in this internal center tube, tail pipe of bowling sliding sleeve in the center tube through screw thread fixed mounting have the ball seat and with center tube, tail pipe formation activity sliding sleeve, the activity sliding sleeve can be followed the axial and reciprocated under the exogenic action, realize opening and closing of sliding sleeve, in the time of need opening the sliding sleeve, dropping into and activity sliding sleeve assorted seat sealing ball, suppressing to press and cut first shear pin, the activity sliding sleeve is down, and the sliding sleeve is opened, in the time of need closing the sliding sleeve, accessible specialized tool lifts the center tube, cuts the second shear pin and makes center tube and tail pipe break away from, realizes the sliding sleeve and closes.
Description
Technical field
The utility model relates to completion tool technical field used in oil gas field completion field, particularly a kind of oil gas well cementing operation staged fracturing pitching sliding sleeve.
Background technology
Along with the quick rising that countries in the world are consumed petroleum gas, and the maturation of horizontal well completion technology and the further investigation to Low permeable oil and gas reservoirs, utilize that horizontal well technology effective exploitation is hypotonic, compactness oil-gas reservoir and shale gas become common recognition both domestic and external.
Begin one's study the eighties in 20th century reservoir fracturing storey increase design technology of horizontal well both at home and abroad, the horizontal segment passing through oil reservoir due to mean level well is longer, full well section acid fracturing is difficult to reach effective reservoir reconstruction, so need point multistage to carry out pressure break or segmentation many bunches of pressure breaks, form the complicated man-made fracture (for large-scale volume fracturing) of desirable many separate man-made fractures (for conventional levels well staged fracturing) or interference mutually, farthest could play horizontal well development Low permeable oil and gas reservoirs, the advantage of compactness oil-gas reservoir and shale gas etc.
In staged fracturing of horizontal well, external more Zao than domestic starting, technology is comparatively ripe, and a lot of original technology is all more external famous oilfield technology service company research and development, and through practical application, define technical advantage respective in staged fracturing of horizontal well.
At present both at home and abroad staged fracturing tool has a lot of series of products, but relatively complex process, fabrication cycle is long, price is high.Although bore hole staged fracturing pitching sliding sleeve principle is similar, simple to operate, oil gas well cementing operation staged fracturing construction requirement can not be met, be badly in need of the instrument that design has special construction, to meet the construction requirement of oil gas well cementing operation staged fracturing.
Utility model content
The purpose of this utility model is to provide that a kind of process structure is simple, low cost, low-risk, high efficiency and can meet the oil gas well cementing operation staged fracturing pitching sliding sleeve of oil gas well cementing operation staged fracturing construction requirement.
For this reason, the technical solution of the utility model is as follows:
A kind of oil gas well cementing operation staged fracturing pitching sliding sleeve, comprise shell body and be sleeved on the movable sliding sleeve in described shell body, described movable sliding sleeve comprises the ball seat being sleeved on the intrinsic central tube of described pitching sliding sleeve and tail pipe from top to bottom and being sleeved in described central tube, multiple intercommunicating pore is processed with along described shell body sidewall circumferencial direction, described central tube cuts off by first the described intercommunicating pore inwall that pin is fixed on described shell body made on shell body sidewall described in described central tube packing, described ball seat is fixed on the inwall of described central tube by the second holding screw, described tail pipe is fixedly connected with described central tube, described shell body bottom interior wall is formed the annular supporting structure of the described movable sliding sleeve supporting descending landing.
Further, the inwall of described central tube is formed with the second ring-shaped step coordinated with described ball seat upper surface, formed up spacing vertically to described ball seat, described tail pipe upper end outer wall is formed and coordinates annular groove with the lower end of described central tube, the lower end of described ball seat is made to be press-fitted on the upper surface of described tail pipe, formed descending spacing vertically to described ball seat, described tail pipe is cut off pin by second and is fixed on described central tube.
Further, the annular supporting structure that the above-mentioned inwall of housing bottom is outside formed, namely spaced projection is processed with in described central tube tube wall bottom, the spaced groove adapted with described central tube tube wall bottom projection is processed with on described tail pipe tube wall top, described central tube is made to be inserted on described tail pipe, this plug-in mounting structure is anti-rotation structure, and central tube and tail pipe are not rotated in constructing operation, prevents the relative position of central tube and tail pipe from misplacing.
Further, the bottom outer wall of described tail pipe is formed with first ring connected in star, jump ring is provided with in described annular groove, described shell body lower inner wall is formed with the second annular groove adapted with described jump ring size, make described jump ring with jump ring radial dilatation during shell body descending landing to the second annular groove place, described shell body and described tail pipe form lock-out state.
Further, described ball seat be fixedly connected with by screw thread with between central tube and described screw thread screw direction and operation time fracturing string direction of rotation contrary, prevent fracturing string from rotation, producing relative motion and loosen.
Further, be connected to top connection and lower contact in the top and bottom of described shell body, described top connection and described lower contact are threaded connection with shell body respectively and described top connection and described lower contact are connected and fixed respectively by multiple first holding screw and multiple 3rd holding screws and described shell body.
Described top connection, the minimum interior of central tube are mated mutually through described setting ball external diameter, and its setting ball is sitting on ball seat smoothly.
Further, described top connection and be sealed and matched to be formed respectively by the first sealing ring be arranged on described top connection and lower contact outer wall and the 5th sealing ring between lower contact and described shell body and seal, described shell body complements each other to form sealing in the upper and lower both sides of described intercommunicating pore respectively by two pass second sealing ring be arranged on described central tube outer wall and two pass the 3rd sealing ring and described central tube and described shell body, is formed seal between described ball seat and described central tube by two pass the 4th sealing ring.
Further, the intercommunicating pore that described shell body sidewall is processed is filled with a sealing by solid lubrication fat and/or anti-cement filler, prevents cement cementation blocking intercommunicating pore in wellbore construction.
Further, described central tube upper end inwall is formed with the first ring-shaped step being convenient to carry central tube.
Further, described top connection is all formed with on the inwall of lower contact the screw thread being connected upper and lower sleeve pipe, for being connected to form fracturing string with sleeve combination.
Compared with prior art, this oil gas well cementing operation staged fracturing pitching sliding sleeve can realize well cementation, completion tubular column institutional operation; By the stuff of multiple pitching sliding sleeve step by step open sliding sleeve realize the object of multi-section multi-layer staged fracturing; Sliding sleeve opening pressure is adjustable; Without the need to extra perforation, frictional resistance is little, operation pressure is low; Without the need to the instrument such as hanger, open hole packer, construction cost is low; Ball socket structure adopts rotation-preventing mechanism and after easily boring design of material, can remove ball seat by quick drill; Later stage producing oil Gas well dewatering layer water outlet can close sliding sleeve, completes water-blocking operation; Fill circulation port by solid lubrication fat and anti-cement filler, sliding sleeve can be avoided by cement cementation.
Accompanying drawing explanation
Fig. 1 is the structural representation of oil gas well cementing operation staged fracturing pitching sliding sleeve of the present utility model;
Fig. 2 is the grafting relation schematic diagram between the central tube of oil gas well cementing operation staged fracturing pitching sliding sleeve of the present utility model and tail pipe.
Detailed description of the invention
Be described in detail below in conjunction with the structure of accompanying drawing to oil gas well cementing operation staged fracturing pitching sliding sleeve of the present utility model.
As shown in Fig. 1 ~ 2, the movable sliding sleeve that this oil gas well cementing operation staged fracturing pitching sliding sleeve comprises shell body 17 and is sleeved in described shell body 17, described movable sliding sleeve comprises the ball seat 12 being sleeved on the intrinsic central tube of described pitching sliding sleeve 5 and tail pipe 16 from top to bottom and being sleeved in described central tube 5, multiple intercommunicating pore 7 is processed with along described shell body 17 upper portion side wall circumferencial direction, described central tube 5 is cut off by first and the inwall that pin 8 is fixed on described shell body 17 is made described central tube 5 close described intercommunicating pore 7 on described shell body 17 sidewall, described ball seat 12 is fixed on the inwall of described central tube 5 by the second holding screw 13, described tail pipe 16 is fixed on the downside of described central tube 5, described shell body 17 bottom interior wall is formed the annular supporting structure of the described movable sliding sleeve supporting descending landing.
The inwall of described central tube 5 caves inward the second ring-shaped step being formed and coordinating with described ball seat 12 upper surface, described tail pipe 16 upper end outer wall is formed and coordinates annular groove with the lower end of described central tube 5, make the lower end of described ball seat 12 be press-fitted on the upper surface of described tail pipe 16, described tail pipe 16 is cut off pin 14 by second and is fixed on described central tube 5.
Described central tube 5 tube wall bottom is processed with spaced projection, is processed with the spaced groove adapted with described central tube 5 tube wall bottom projection, described central tube 5 is inserted on described tail pipe 16 on described tail pipe 16 tube wall top.
The bottom outer wall of described tail pipe 16 is formed with first ring connected in star, jump ring 15 is provided with in described annular groove, described shell body 17 lower inner wall is formed with the second annular groove adapted with described jump ring 15 size, make described jump ring 15 with jump ring radial dilatation during shell body 17 descending landing to the second annular groove place, described shell body 17 forms lock-out state with described tail pipe 16.
Described ball seat 12 be fixedly connected with by screw thread with between central tube 5 and described screw thread screw direction and operation time fracturing string direction of rotation contrary.
Be connected to top connection 1 and lower contact 20 in the top and bottom of described shell body 17, described top connection 1 and described lower contact 20 are threaded connection with shell body 17 respectively and described top connection 1 and described lower contact 20 are connected and fixed with described shell body 17 respectively by multiple first holding screw 2 and multiple 3rd holding screw 19.
Described top connection 1 and seal 18 respectively by the first sealing ring 3 be arranged on described top connection 1 and lower contact 20 outer wall and the 5th sealing ring between lower contact 20 with described shell body 17 and coordinate to be formed and seal, described shell body 17 complements each other to form sealing respectively by two pass second sealing ring 4 be arranged on described central tube 5 outer wall and two pass the 3rd sealing ring 10 with described central tube 5 and described shell body 17 in the upper and lower both sides of described intercommunicating pore, is formed seal between described ball seat 12 and described central tube 5 by two pass the 4th sealing ring 11.
Described top connection 1, the minimum interior of central tube 5 are mated mutually through described setting ball 9 external diameter, and its setting ball 9 is sitting on ball seat 12 smoothly.
Setting ball seat adopts and easily bores material, enters supporting little drilling tool brill and can realize tubing string full-bore except after ball seat under passing through as required.
The intercommunicating pore 7 that described shell body 17 sidewall is processed is filled with a sealing by solid lubrication fat and/or anti-cement filler 6.
Described central tube 5 upper end inwall is formed with the first ring-shaped step being convenient to carry central tube.
The inwall of described top connection 1 and lower contact 20 is all formed with connection internal thread, for being connected to form fracturing string with sleeve combination.
The operating principle of this oil gas well cementing operation staged fracturing pitching sliding sleeve:
Assembling oil gas well cementing operation staged fracturing pitching sliding sleeve, described shell body 17, top connection 1, lower contact 20 are fixedly connected to form sliding sleeve body, and described central tube 5, ball seat 12, tail pipe 16 connect rear formation activity sliding sleeve; Described top connection 1 and lower contact 20 are all formed with the screw thread that is connected upper and lower sleeve pipe group and form fracturing strings after splicing sleeve group; Movable sliding sleeve can move up and down under external force vertically, realizes the opening and closing of sliding sleeve; During pressing crack construction, drop into the setting ball 9 matched with movable sliding sleeve, make on its ball seat 12 set in sliding sleeve, build the pressure and cut off first and cut off pin 8, movable sliding sleeve is descending, exposes circulation port, i.e. intercommunicating pore 7, realizes the staged fracturing to this layer of position.
When being connected with multiple pitching sliding sleeve in the working string at G.I.H, the unlatching step by step from bottom to top of pitching sliding sleeve can be realized by dropping into the setting ball 9 matched mutually with movable sliding sleeve successively, realize multi-section multi-layer staged fracturing piecemeal, open the fracturing work that one-level sliding sleeve can carry out this layer.Open step by step in construction, step by step pressure break, until construction terminates, and sliding sleeve can be located after opening voluntarily, again closes under preventing External Force Acting.
When needing to close sliding sleeve, coordinate by special tool on the first ring-shaped step of central tube 5 upper end and carry central tube 5, cut off second and cut off pin 14 and central tube 5 and tail pipe 16 are departed from close sliding sleeve.
After multi-section multi-layer staged fracturing terminates piecemeal, by under enter supporting little drilling tool and bore except ball seat 12, realize tubing string full-bore, facilitate the construction of subsequent job; Exploitation later stage Oil/gas Well water-yielding stratum water outlet, by closing sliding sleeve mode, realizes water-blocking operation.
In sum, content of the present utility model is not limited in the above-described embodiments, and those skilled in the art can propose other embodiment according to guiding theory of the present utility model, and these embodiments are all included within scope of the present utility model.
Claims (10)
1. an oil gas well cementing operation staged fracturing pitching sliding sleeve, it is characterized in that, the movable sliding sleeve comprising shell body (17) and be sleeved in described shell body (17), described movable sliding sleeve comprises the ball seat (12) being sleeved on the intrinsic central tube of described pitching sliding sleeve (5) and tail pipe (16) from top to bottom and being sleeved in described central tube (5), multiple intercommunicating pore (7) is processed with along described shell body (17) upper portion side wall circumferencial direction, described central tube (5) is cut off by first and the inwall that pin (8) is fixed on described shell body (17) is made described central tube (5) close described intercommunicating pore (7) on described shell body (17) sidewall, described ball seat (12) is fixed on the inwall of described central tube (5) by the second holding screw (13), described tail pipe (16) is fixed on described central tube (5) downside, described shell body (17) bottom interior wall is formed the annular supporting structure of the described movable sliding sleeve supporting descending landing.
2. oil gas well cementing operation staged fracturing pitching sliding sleeve according to claim 1, it is characterized in that, the inwall of described central tube (5) caves inward the second ring-shaped step being formed and coordinating with described ball seat (12) upper surface, described tail pipe (16) upper end outer wall is formed and coordinates annular groove with the lower end of described central tube (5), make the lower end of described ball seat (12) be press-fitted on the upper surface of described tail pipe (16), described tail pipe (16) is cut off pin (14) by second and is fixed on described central tube (5).
3. oil gas well cementing operation staged fracturing pitching sliding sleeve according to claim 1, it is characterized in that, described central tube (5) tube wall bottom is processed with spaced projection, be processed with the spaced groove adapted with described central tube (5) tube wall bottom projection on described tail pipe (16) tube wall top, described central tube (5) is inserted on described tail pipe (16).
4. oil gas well cementing operation staged fracturing pitching sliding sleeve according to claim 1, it is characterized in that, the bottom outer wall of described tail pipe (16) is formed with first ring connected in star, jump ring (15) is provided with in described annular groove, described shell body (17) lower inner wall is formed with the second annular groove adapted with described jump ring (15) size, make described jump ring (15) with jump ring radial dilatation during shell body (17) descending landing to the second annular groove place, described shell body (17) and described tail pipe (16) form lock-out state.
5. oil gas well cementing operation staged fracturing pitching sliding sleeve according to claim 1, it is characterized in that, be fixedly connected with by screw thread between described ball seat (12) with central tube (5) and described screw thread screw direction and operation time fracturing string direction of rotation contrary.
6. oil gas well cementing operation staged fracturing pitching sliding sleeve according to claim 1, it is characterized in that, be connected to top connection (1) and lower contact (20) in the top and bottom of described shell body (17), described top connection (1) and described lower contact (20) are threaded connection with shell body (17) respectively and described top connection (1) and described lower contact (20) are connected and fixed with described shell body (17) respectively by multiple first holding screw (2) and multiple 3rd holding screw (19).
7. oil gas well cementing operation staged fracturing pitching sliding sleeve according to claim 6, it is characterized in that, described top connection (1) and seal (18) respectively by the first sealing ring (3) be arranged on described top connection (1) and lower contact (20) outer wall and the 5th sealing ring between lower contact (20) with described shell body (17) and coordinate to be formed and seal, described shell body (17) complements each other to form sealing respectively by two pass second sealing ring (4) be arranged on described central tube (5) outer wall and two pass the 3rd sealing ring (10) with described central tube (5) and described shell body (17) in the upper and lower both sides of described intercommunicating pore, formed by two pass the 4th sealing ring (11) between described ball seat (12) and described central tube (5) and seal.
8. oil gas well cementing operation staged fracturing pitching sliding sleeve according to claim 1, it is characterized in that, the intercommunicating pore (7) that described shell body (17) sidewall is processed is filled with a sealing by solid lubrication fat and/or anti-cement filler (6).
9. oil gas well cementing operation staged fracturing pitching sliding sleeve according to claim 1, is characterized in that, described central tube (5) upper end inwall is formed with the first ring-shaped step being convenient to carry central tube.
10. oil gas well cementing operation staged fracturing pitching sliding sleeve according to claim 6, it is characterized in that, the inwall of described top connection (1) and lower contact (2) is all formed with connection internal thread, for being connected to form fracturing string with sleeve combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520476212.7U CN204851170U (en) | 2015-07-03 | 2015-07-03 | Oil gas well well cementation staged fracturing bowling sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520476212.7U CN204851170U (en) | 2015-07-03 | 2015-07-03 | Oil gas well well cementation staged fracturing bowling sliding sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN204851170U true CN204851170U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520476212.7U Expired - Fee Related CN204851170U (en) | 2015-07-03 | 2015-07-03 | Oil gas well well cementation staged fracturing bowling sliding sleeve |
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| CN (1) | CN204851170U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522881A (en) * | 2016-12-07 | 2017-03-22 | 中国石油集团西部钻探工程有限公司 | Downhole isolating valve |
| CN107013186A (en) * | 2017-05-02 | 2017-08-04 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of multistage slide bushing assembly of cluster formula and segmentation measure tubing string |
| CN113153218A (en) * | 2021-05-18 | 2021-07-23 | 燕山大学 | Full-bore infinite-stage fracturing sliding sleeve |
| CN113803023A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Fracturing nipple and fracturing string comprising same |
| CN114837613A (en) * | 2022-05-12 | 2022-08-02 | 安东石油技术（集团）有限公司 | Sand control fracturing ball injection sliding sleeve |
| WO2022257080A1 (en) * | 2021-06-10 | 2022-12-15 | 中国石油化工股份有限公司 | Differential pressure sliding sleeve, and oil and gas well fracturing construction method using same |
| US11933138B2 (en) | 2020-06-12 | 2024-03-19 | China Petroleum & Chemical Corporation | Sliding sleeve device |
-
2015
- 2015-07-03 CN CN201520476212.7U patent/CN204851170U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522881A (en) * | 2016-12-07 | 2017-03-22 | 中国石油集团西部钻探工程有限公司 | Downhole isolating valve |
| CN106522881B (en) * | 2016-12-07 | 2023-07-07 | 中国石油天然气集团有限公司 | Underground isolation valve |
| CN107013186A (en) * | 2017-05-02 | 2017-08-04 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of multistage slide bushing assembly of cluster formula and segmentation measure tubing string |
| CN113803023A (en) * | 2020-06-12 | 2021-12-17 | 中国石油化工股份有限公司 | Fracturing nipple and fracturing string comprising same |
| US11933138B2 (en) | 2020-06-12 | 2024-03-19 | China Petroleum & Chemical Corporation | Sliding sleeve device |
| CN113153218A (en) * | 2021-05-18 | 2021-07-23 | 燕山大学 | Full-bore infinite-stage fracturing sliding sleeve |
| WO2022257080A1 (en) * | 2021-06-10 | 2022-12-15 | 中国石油化工股份有限公司 | Differential pressure sliding sleeve, and oil and gas well fracturing construction method using same |
| CN114837613A (en) * | 2022-05-12 | 2022-08-02 | 安东石油技术（集团）有限公司 | Sand control fracturing ball injection sliding sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210722 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 |