CN104343417A - Six-opening switch sliding bush - Google Patents
Six-opening switch sliding bush Download PDFInfo
- Publication number
- CN104343417A CN104343417A CN201410618870.5A CN201410618870A CN104343417A CN 104343417 A CN104343417 A CN 104343417A CN 201410618870 A CN201410618870 A CN 201410618870A CN 104343417 A CN104343417 A CN 104343417A
- Authority
- CN
- China
- Prior art keywords
- sleeve body
- central tube
- sliding bush
- pressure break
- lower contact
- 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
- 210000000078 claw Anatomy 0.000 claims description 18
- 238000007790 scraping Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 2
- 210000002445 nipple Anatomy 0.000 abstract 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000000638 stimulation Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012827 research and development Methods 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- 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
- E21B43/14—Obtaining from a multiple-zone well
-
- 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)
- Prevention Of Electric Corrosion (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to a six-opening switch sliding bush and belongs to the technical field of petroleum underground tools. The switch sliding bush comprises a central pipe, an upper joint, a lower joint, a sliding bush body and a connecting nipple, wherein the upper joint is installed at one end of the central pipe through threads, the sliding bush body is installed in the central pipe in a sleeved manner, the lower joint sleeves the sliding bush body, the connecting nipple is installed on the sliding bush body between the lower joint and the central pipe, and the connecting nipple is respectively connected with the central pipe and the lower joint through threads. The switch sliding bush has the advantages that the structure is simple, the design is novel, and the problems that gas coning is easily formed after the existing common sliding bush is used for opening a passage, the environmental adaptability is limited to a certain extent and the underground operation requirement cannot be satisfied are solved; the six-opening switch sliding bush is particularly suitable for oil and gas well fracturing yield increasing operation, selective exploitation and packing and water plugging operation.
Description
Technical field
The present invention relates to a kind of six aperture switching sliding sleeves, belong to Petroleum Down-hole Tool technical field.
Background technology
In well cementing process, switching sliding sleeve be directly and sleeve pipe be connected be arranged in each producing horizon by overlapping pipe thread.Open sliding sleeve in the later stage by switching tools and carry out fracture stimulation operations, or closedown sliding sleeve carries out selective exploitation, or packing water-blocking operation is carried out to part interval.But conventional sliding sleeve easily forms gas coning after opening passage, conform and be subject to a definite limitation, underground work requirement cannot be met completely; Therefore, be necessary that research and development one can have multiple aperture to adapt to varying environment, and fracture stimulation operations, selective exploitation can be met completely, or part interval is carried out to the sliding sleeve of packing water-blocking operation.
Summary of the invention
The object of the invention is to: provide a kind of structure simple, novel in design, can varying environment be adapted to, fracture stimulation operations, selective exploitation can be met completely, or six aperture switching sliding sleeves of packing water-blocking operation requirement are carried out to part interval.
Technical scheme of the present invention is:
A kind of six aperture switching sliding sleeves, comprise central tube, top connection, lower contact, sleeve body and connection short circuit, it is characterized in that: the threaded one end of central tube is provided with top connection, sleeve body is set with in central tube, one end of sleeve body extends to central tube outer end, the sleeve body extending to central tube outer end is set with lower contact, the sleeve body between lower contact with central tube is provided with and is connected short circuit, connect short circuit and be threaded with central tube and lower contact respectively.
Described sleeve body is tubular, sleeve body one end be circumferentially evenly equipped with pressure break channel slot, the sleeve body other end be circumferentially evenly equipped with claw mounting groove, the external surface of the sleeve body of claw mounting groove side is circumferentially provided with pin track groove.
In described claw mounting groove, claw is installed.
Described central tube is circumferentially provided with pressure break groove, and pressure break groove is corresponding with pressure break channel slot to be overlapped.
Described lower contact is provided with pin, and pin and pin track groove are slidably connected.
Mud-scraping ring is separately installed with between the central tube of described pressure break groove both sides and sleeve body.
Beneficial effect of the present invention is:
This six apertures switching sliding sleeve structure is simple, novel in design, in the course of work, under the effect of switching tools, by the sliding and running of pin in pin track groove, progressively closure or openness can be made between pressure break groove and pressure break channel slot, thus can the size of control fracturing passage, thus different operating environment can be adapted to, fracture stimulation operations, selective exploitation can be met completely, or part interval is carried out to the requirement of packing water-blocking operation.Be specially adapted to well fracturing stimulation work, selective exploitation and packing water-blocking operation use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is sectional structure schematic diagram of the present invention;
Fig. 3 is the structural representation of sleeve body of the present invention;
Fig. 4 is the expansion schematic diagram of pin track groove of the present invention.
In figure: 1, central tube, 2, top connection, 3, lower contact, 4, sleeve body, 5, connect short circuit, 6, pressure break channel slot, 7, claw mounting groove, 8, claw, 9, pin track groove, 10, pressure break groove, 11, mud-scraping ring, 12, pin.
Detailed description of the invention
This six apertures switching sliding sleeve comprises central tube 1, top connection 2, lower contact 3, sleeve body 4 and is connected short circuit 5.The threaded one end of central tube 1 is provided with top connection 2, is movably installed with sleeve body 4 in central tube 1.Sleeve body 4 is in tubular, sleeve body 4 one end be circumferentially evenly equipped with pressure break channel slot 6, sleeve body 4 other end be circumferentially evenly equipped with claw mounting groove 7, claw 8 is installed in claw mounting groove 7, the effect of claw 8 by lower contact 3, sleeve body 4 to be moved under the effect of switching tools, but not can not slide easily under the effect of switching tools.The external surface of the sleeve body 4 of claw mounting groove 7 side is circumferentially provided with pin track groove 9.
One end of sleeve body 4 extends to central tube 1 outer end, the sleeve body 4 extending to central tube 1 outer end is set with lower contact 3, sleeve body between lower contact 3 with central tube 1 is provided with and is connected short circuit 5, connect short circuit 5 and be threaded with central tube 1 and lower contact 3 respectively.
Central tube 1 be circumferentially provided with pressure break groove 10, be separately installed with mud-scraping ring 11 between the central tube 1 of pressure break groove 10 both sides and sleeve body 4; Pressure break groove 10 is corresponding with pressure break channel slot 6 to be overlapped.
Lower contact 3 is provided with pin 12 with in the lower contact 3 being connected short circuit 5 junction, and pin 12 and pin track groove 9 are slidably connected.
When needing to open this fracturing sliding bush in underground work process, be connected with coiled tubing after two upper and lower two ends of switching tools being put upside down docking, then together in lower going-into-well.Now the hinged claw of switching tools belongs to income state.When entering after position crosses this sliding sleeve position under switching tools, open switching tools.Now, above carry coiled tubing, switching tools blocks claw mounting groove 7 corresponding on this sliding sleeve by the hinged claw opened thus makes sleeve body 4 moves, because the pin 12 that lower contact 3 is arranged is slidably connected with the pin track groove 9 on sleeve body 4.Sleeve body 4 moves up and down pin 12 sliding and running in pin track groove 9 in process, by the track of pin track groove 9, thus force sleeve body 4 progressively to rotate, and then make progressively open with the open degree such as 4 degree, 8 degree, 12 degree, 16 degree, 20 degree, 24 degree or close between pressure break groove 10 and pressure break channel slot 6, the size of control fracturing passage thus, thus different operating environment can be adapted to, fracture stimulation operations, selective exploitation can be met completely, or part interval is carried out to the requirement of packing water-blocking operation.
This six apertures switching sliding sleeve structure is simple, novel in design, and the every operation along with switching tools can open corresponding aperture.Solve after existing conventional sliding sleeve opens passage and easily form gas coning, making to conform is subject to a definite limitation, cannot meet the problem of underground work requirement completely; Be specially adapted to well fracturing stimulation work, selective exploitation and packing water-blocking operation use.
Claims (6)
1. an aperture switching sliding sleeve, comprise central tube (1), top connection (2), lower contact (3), sleeve body (4) be connected short circuit (5), it is characterized in that: the threaded one end of central tube (1) is provided with top connection (2), sleeve body (4) is set with in central tube (1), one end of sleeve body (4) extends to central tube (1) outer end, the sleeve body (4) extending to central tube (1) outer end is set with lower contact (3), sleeve body (4) between lower contact (3) with central tube (1) is provided with and is connected short circuit (5), connect short circuit (5) to be threaded with central tube (1) and lower contact (3) respectively.
2. a kind of six aperture switching sliding sleeves according to claim 1, it is characterized in that: described sleeve body (4) is in tubular, sleeve body (4) one end be circumferentially evenly equipped with pressure break channel slot (6), sleeve body (4) other end be circumferentially evenly equipped with claw mounting groove (7), the external surface of the sleeve body (4) of claw mounting groove (7) side is circumferentially provided with pin track groove (9).
3. a kind of six aperture switching sliding sleeves according to claim 2, is characterized in that: be provided with claw (8) in described claw mounting groove (7).
4. a kind of six aperture switching sliding sleeves according to claim 1, is characterized in that: described central tube (1) is circumferentially provided with pressure break groove (10), pressure break groove (10) is corresponding with pressure break channel slot (6) to be overlapped.
5. a kind of six aperture switching sliding sleeves according to claim 1, is characterized in that: described lower contact (3) is provided with pin (12), and pin (12) and pin track groove (9) are slidably connected.
6. a kind of six aperture switching sliding sleeves according to claim 4, is characterized in that: be separately installed with mud-scraping ring (11) between the central tube (1) of described pressure break groove (10) both sides and sleeve body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410618870.5A CN104343417B (en) | 2014-11-06 | 2014-11-06 | A kind of six aperture switching sliding sleeves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410618870.5A CN104343417B (en) | 2014-11-06 | 2014-11-06 | A kind of six aperture switching sliding sleeves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104343417A true CN104343417A (en) | 2015-02-11 |
| CN104343417B CN104343417B (en) | 2016-09-28 |
Family
ID=52499803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410618870.5A Active CN104343417B (en) | 2014-11-06 | 2014-11-06 | A kind of six aperture switching sliding sleeves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104343417B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201462A (en) * | 2015-10-23 | 2015-12-30 | 西安石油大学 | Angle-adjustable hydraulic sand blasting perforation fracturing spray gun |
| CN106121610A (en) * | 2016-06-24 | 2016-11-16 | 铁岭曲氏石油技术开发服务有限公司 | Rotary frac-sand jet and multistage sandblasting fracturing technology |
| CN106150467A (en) * | 2015-04-08 | 2016-11-23 | 中国石油化工股份有限公司 | For the fracturing device in tubing string |
| CN107366520A (en) * | 2016-05-12 | 2017-11-21 | 中石化石油工程技术服务有限公司 | A kind of robot switching sliding sleeve |
| CN107366521A (en) * | 2016-05-12 | 2017-11-21 | 中国石油化工股份有限公司 | A kind of sand control control neatly set and its switching device |
| CN108952624A (en) * | 2017-05-19 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of infinite stages full-bore fracturing sliding bush |
| 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 |
| CN113738304A (en) * | 2021-09-17 | 2021-12-03 | 中国石油化工股份有限公司 | Toe end sliding sleeve with shaft pressure testing function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190554Y (en) * | 2008-02-03 | 2009-02-04 | 毛万里 | Mechanically controlled multi-time on-off valve at downhole of oilfield and on-off tool |
| CN202266247U (en) * | 2011-08-28 | 2012-06-06 | 中国石油集团长城钻探工程有限公司 | Mechanical switch sliding sleeve |
| CN202731847U (en) * | 2012-07-04 | 2013-02-13 | 中国海洋石油总公司 | Circulatory produced sliding sleeve |
| CN203441449U (en) * | 2013-08-22 | 2014-02-19 | 中国石油天然气股份有限公司 | Sliding sleeve screen pipe with adjustable be used for oil recovery in layers |
| CN204200173U (en) * | 2014-11-06 | 2015-03-11 | 长江大学 | A kind of six aperture switching sliding sleeves |
-
2014
- 2014-11-06 CN CN201410618870.5A patent/CN104343417B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190554Y (en) * | 2008-02-03 | 2009-02-04 | 毛万里 | Mechanically controlled multi-time on-off valve at downhole of oilfield and on-off tool |
| CN202266247U (en) * | 2011-08-28 | 2012-06-06 | 中国石油集团长城钻探工程有限公司 | Mechanical switch sliding sleeve |
| CN202731847U (en) * | 2012-07-04 | 2013-02-13 | 中国海洋石油总公司 | Circulatory produced sliding sleeve |
| CN203441449U (en) * | 2013-08-22 | 2014-02-19 | 中国石油天然气股份有限公司 | Sliding sleeve screen pipe with adjustable be used for oil recovery in layers |
| CN204200173U (en) * | 2014-11-06 | 2015-03-11 | 长江大学 | A kind of six aperture switching sliding sleeves |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150467A (en) * | 2015-04-08 | 2016-11-23 | 中国石油化工股份有限公司 | For the fracturing device in tubing string |
| CN105201462A (en) * | 2015-10-23 | 2015-12-30 | 西安石油大学 | Angle-adjustable hydraulic sand blasting perforation fracturing spray gun |
| CN107366520A (en) * | 2016-05-12 | 2017-11-21 | 中石化石油工程技术服务有限公司 | A kind of robot switching sliding sleeve |
| CN107366521A (en) * | 2016-05-12 | 2017-11-21 | 中国石油化工股份有限公司 | A kind of sand control control neatly set and its switching device |
| CN106121610A (en) * | 2016-06-24 | 2016-11-16 | 铁岭曲氏石油技术开发服务有限公司 | Rotary frac-sand jet and multistage sandblasting fracturing technology |
| CN108952624A (en) * | 2017-05-19 | 2018-12-07 | 中国石油化工股份有限公司 | A kind of infinite stages full-bore fracturing sliding bush |
| 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 |
| CN113738304A (en) * | 2021-09-17 | 2021-12-03 | 中国石油化工股份有限公司 | Toe end sliding sleeve with shaft pressure testing function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104343417B (en) | 2016-09-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |