CN203201532U - Hydraulic switch for oil and gas well circulation sliding sleeve - Google Patents
Hydraulic switch for oil and gas well circulation sliding sleeve Download PDFInfo
- Publication number
- CN203201532U CN203201532U CN 201320184213 CN201320184213U CN203201532U CN 203201532 U CN203201532 U CN 203201532U CN 201320184213 CN201320184213 CN 201320184213 CN 201320184213 U CN201320184213 U CN 201320184213U CN 203201532 U CN203201532 U CN 203201532U
- Authority
- CN
- China
- Prior art keywords
- central tube
- switch
- ring
- oil
- well
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model provides a hydraulic switch for an oil and gas well circulation sliding sleeve and belongs to the field of oil and gas well tube pillar downhole tools. The hydraulic switch comprises a central tube, a switch half ring, a piston sleeve, a lower connector and a pup joint, wherein one end of the central tube is provided with the lower connector in a threaded manner, the central tube and the lower connector are fixed by virtue of a socket head cap screw, and the lower connector is provided with the pup joint in a threaded manner; the periphery of the central tube is provided with the piston sleeve by virtue of the spring sleeve and a spring; and the periphery of the central tube at one side of the piston sleeve is provided with the switch half ring by virtue of a lower baffle ring and an upper baffle ring. The hydraulic switch is fed into a well by virtue of a coiled tube, so that a down force and an a lifting force can be conveniently provided; after the hydraulic switch is fed into the well, a scour outlet in the hydraulic switch can be used for performing flushing operation on the switch half ring, so that the possibility of operation fault caused by a fact that the switch half ring is easily blocked by sundries after an existing steel wire rope switch tool is fed into the well can be solved, and therefore powerful guarantee is provided for enlarging the application range of the circulation sliding sleeve and the well completion convenience of an oil and gas well.
Description
Technical field
The utility model relates to a kind of hydraulic selector for the Oil/gas Well circulation slide sleeve, belongs to kit field, Oil/gas Well tubing string down-hole.
Background technology
Exploit at home in the horizontal well multistage pressing crack construction of unconventional oil gas at present, the normal operation open hole packer cooperates the mode of fracturing sliding bush to carry out staged fracturing, because some payzone meeting water outlet after construction finishes to recover the oil a period of time, shut water layer as untimely this moment, will cause the serious consequence of waterflood.So but need to being lowered to circulation slide sleeve or switch fracturing sliding bush usually when pressure break or completion, Oil/gas Well comes opening and closing of passage between control oil pipe and the payzone.But open or close the switching tools that these circulation slide sleeves or switch fracturing sliding bush just need to use the dimension model.Conventional switching tools generally is lowered to by wire rope, relies on weighted lever to cooperate bumper jar to come sliding sleeve is carried out switch motion during switch.But along with the in recent years day by day increase of horizontal well, a lot of sliding sleeves all are installed in horizontal segment in advance, and conventional wire rope switching tools relies on wire rope that downforce can't be provided at all at horizontal segment, and after the wire rope switching tools is gone into the well, thereby the switch semi-ring is easily by the stuck possibility that causes operation failure of foreign material; This has just brought the limitation that only can use to switching sliding sleeve in straight well or little Wells.Therefore, necessary design a kind of with coiled tubing be lowered to and realize to suppress, put-on and delegated operates the switch circulation slide sleeve, enlarging the scope of application of circulation slide sleeve, the hydraulic selector that provides strong support for the completion convenience of Oil/gas Well.
Summary of the invention
The purpose of this utility model is: provide a kind of simple in structure, can utilize coiled tubing that downforce and upper lifting force are provided easily, greatly discharge capacity circulation is circulated to ground with the deposit with the shaft bottom after going into the well, and improves the efficient of gathering thereby increase the produce oil passage; And after going into the well, can carry out flushing operation to the switch semi-ring, and easily stuck by foreign material to solve the existing wire rope switching tools rear switch semi-ring of going into the well, thus the hydraulic selector that is used for the Oil/gas Well circulation slide sleeve of operation failure problem caused.
The technical solution of the utility model is:
A kind of hydraulic selector for the Oil/gas Well circulation slide sleeve, comprise central tube, switch semi-ring, piston bush, lower contact and short circuit, it is characterized in that: the threaded one end of central tube is equipped with lower contact, fixes by soket head cap screw between central tube and the lower contact, and screw thread is equipped with short circuit in the lower contact; By spring housing and spring piston bush is housed on the circumference of central tube, by lower baffle ring and upper baffle ring the switch semi-ring is housed on the central tube circumference of piston bush one side, between switch semi-ring and the central tube elastic claw is housed, elastic claw is fixed by shear pin and central tube; Be provided with key piece spring between elastic claw and the switch semi-ring; Be provided with scouring sluice and inlet opening on the described central tube.
Be respectively arranged with O RunddichtringO A and O RunddichtringO B between described lower contact and central tube and the short circuit; Be respectively arranged with O RunddichtringO C, O RunddichtringO D and O RunddichtringO E, O RunddichtringO F between spring housing and central tube and the piston bush.
The beneficial effects of the utility model are:
The hydraulic selector that should be used for the Oil/gas Well circulation slide sleeve utilizes coiled tubing to be lowered to, therefore can provide easily downforce and upper lifting force, avoided existing wire rope switching tools that the problem of downforce can't be provided in Oil/gas Well level section, but and can carry out easily open and close to the circulation slide sleeve in the first lower going-into-well or switch fracturing sliding bush, simultaneously by the scouring sluice on this hydraulic selector, after going into the well, can carry out flushing operation to the switch semi-ring, after having solved existing wire rope switching tools and going into the well, the switch semi-ring easily by foreign material stuck cause operation failure may; Thereby be the scope of application of expansion circulation slide sleeve, and the completion convenience of Oil/gas Well provides strong guarantee.In addition, this hydraulic selector instrument is when suppressing, the switch semi-ring opens after being discharged by piston bush, be stuck in groove corresponding to sliding sleeve to implement switch motion, after pressure release, the switch semi-ring is compressed by piston bush, external diameter diminishes, can not implement to open by mistake or mistake is closed operation to the sliding sleeve of other positions of down-hole, therefore, this hydraulic selector instrument can be realized not available repeatedly, the alternative switching function of conventional wire rope instrument.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure: 1, central tube, 2, the switch semi-ring, 3, piston bush, 4, lower contact, 5, short circuit, 6, soket head cap screw, 7, spring housing, 8, spring, 9, lower baffle ring, 10, upper baffle ring, 11, elastic claw, 12, shear pin, 13, O RunddichtringO A, 14, O RunddichtringO B, 15, O RunddichtringO C, 16, O RunddichtringO D, 17, O RunddichtringO E, 18, O RunddichtringO F, 19, key piece spring, 20, scouring sluice, 21, inlet opening.
The specific embodiment
The hydraulic selector that should be used for the Oil/gas Well circulation slide sleeve comprises central tube 1, switch semi-ring 2, piston bush 3, lower contact 4 and short circuit 5.The threaded one end of central tube 1 is equipped with lower contact 4, and fixing by soket head cap screw 6 between central tube 1 and the lower contact 4, screw thread is equipped with short circuit 5 in the lower contact 4.By spring housing 7 and spring 8 piston bush 3 is housed on the circumference of central tube 1, by lower baffle ring 9 and upper baffle ring 10 switch semi-ring 2 is housed on central tube 1 circumference of piston bush 3 one sides, between switch semi-ring 2 and the central tube 1 elastic claw 11 is housed, elastic claw 11 is fixing with central tube 1 by shear pin 12, is provided with key piece spring 19 between elastic claw 11 and the switch semi-ring 2.Be provided with scouring sluice 20 and inlet opening 21 on the central tube 1.
Be respectively arranged with O RunddichtringO A13 and O RunddichtringO B14 between lower contact 4 and central tube 1 and the short circuit 5; Be respectively arranged with O RunddichtringO C15, O RunddichtringO D16 and O RunddichtringO E17, O RunddichtringO F18 between spring housing 7 and central tube 1 and the piston bush 3.
The endoporus of the interior boring ratio coiled tubing of this hydraulic selector central tube 1 is little, therefore can play the effect of throttling when large discharge capacity, and scouring sluice 20 can carry out flushing operation to switch semi-ring 2, to avoid switch semi-ring 2 by the stuck possibility that causes operation failure of foreign material; Switch semi-ring 2 is in compressive state under the original state under the compressing of piston bush 3.
During work, this hydraulic selector utilizes coiled tubing to be lowered to Oil/gas Well, but the switch direction of the circulation slide sleeve that is lowered in advance according to the down-hole during connection or switch fracturing sliding bush is adjusted the direction of going into the well of this hydraulic selector, but and according to early stage the well depth data of the circulation slide sleeve that descends or switch fracturing sliding bush determine depth of setting, after transferring to assigned address, ground begins to suppress, this moment, highly pressurised liquid entered from coiled tubing, until the inlet opening 21 of this hydraulic selector central tube 1, increase along with pressure, pushing piston cover 3 moves downward, when piston bush 3 moves downward, compressing power to switch semi-ring 2 disappears, switch semi-ring 2 is upspring under the effect of key piece spring 19, but namely may be stuck in after switch semi-ring 2 is upspring in the groove of circulation slide sleeve or switch fracturing sliding bush, can close circulation slide sleeve or switch fracturing sliding bush but carry or press down coiled tubing on this moment.
Claims (1)
1. hydraulic selector that is used for the Oil/gas Well circulation slide sleeve, comprise central tube (1), switch semi-ring (2), piston bush (3), lower contact (4) and short circuit (5), it is characterized in that: the threaded one end of central tube (1) is equipped with lower contact (4), fixing by soket head cap screw (6) between central tube (1) and the lower contact (4), the upper screw thread of lower contact (4) is equipped with short circuit (5); By spring housing (7) and spring (8) piston bush (3) is housed on the circumference of central tube (1), by lower baffle ring (9) and upper baffle ring (10) switch semi-ring (2) is housed on central tube (1) circumference of piston bush (3) one sides, between switch semi-ring (2) and the central tube (1) elastic claw (11) is housed, elastic claw (11) is fixing by shear pin (12) and central tube (1); Be provided with key piece spring (19) between elastic claw (11) and the switch semi-ring (2); Be provided with scouring sluice (20) and inlet opening (21) on the described central tube (1); Be respectively arranged with O RunddichtringO A(13 between lower contact (4) and central tube (1) and the short circuit (5)) and O RunddichtringO B(14); Be respectively arranged with O RunddichtringO C(15 between spring housing (7) and central tube (1) and the piston bush (3)), O RunddichtringO D(16) and O RunddichtringO E(17), O RunddichtringO F(18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320184213 CN203201532U (en) | 2013-04-14 | 2013-04-14 | Hydraulic switch for oil and gas well circulation sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320184213 CN203201532U (en) | 2013-04-14 | 2013-04-14 | Hydraulic switch for oil and gas well circulation sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203201532U true CN203201532U (en) | 2013-09-18 |
Family
ID=49145647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320184213 Expired - Fee Related CN203201532U (en) | 2013-04-14 | 2013-04-14 | Hydraulic switch for oil and gas well circulation sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203201532U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711456A (en) * | 2013-12-16 | 2014-04-09 | 东营市福利德石油科技开发有限责任公司 | Hydraulic switching tool for deep-water oil well |
| CN104675361A (en) * | 2015-03-02 | 2015-06-03 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Selective sliding sleeve switching coiled tubing string |
| CN113653454A (en) * | 2021-07-02 | 2021-11-16 | 四机赛瓦石油钻采设备有限公司 | Anchoring sealing insertion tube with depth checking and trial insertion functions |
| CN114837612A (en) * | 2022-04-22 | 2022-08-02 | 中海油能源发展股份有限公司 | Diameter-variable sliding sleeve opening and closing tool |
-
2013
- 2013-04-14 CN CN 201320184213 patent/CN203201532U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711456A (en) * | 2013-12-16 | 2014-04-09 | 东营市福利德石油科技开发有限责任公司 | Hydraulic switching tool for deep-water oil well |
| CN104675361A (en) * | 2015-03-02 | 2015-06-03 | 中国石油化工股份有限公司江汉油田分公司采油工艺研究院 | Selective sliding sleeve switching coiled tubing string |
| CN113653454A (en) * | 2021-07-02 | 2021-11-16 | 四机赛瓦石油钻采设备有限公司 | Anchoring sealing insertion tube with depth checking and trial insertion functions |
| CN113653454B (en) * | 2021-07-02 | 2023-08-29 | 四机赛瓦石油钻采设备有限公司 | Anchoring sealing cannula with depth correction and trial insertion functions |
| CN114837612A (en) * | 2022-04-22 | 2022-08-02 | 中海油能源发展股份有限公司 | Diameter-variable sliding sleeve opening and closing tool |
| CN114837612B (en) * | 2022-04-22 | 2023-07-28 | 中海油能源发展股份有限公司 | Diameter-variable sliding sleeve switch tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204436360U (en) | Can switch separate stratum fracturing well cementation sliding sleeve | |
| CN104011320B (en) | Underground bridge plug tripping in tool | |
| CN201265391Y (en) | High-pressure difference large-aperture gas-tight back-flushing valve for oil-gas field | |
| CN203201532U (en) | Hydraulic switch for oil and gas well circulation sliding sleeve | |
| CN102654024B (en) | Hydraulic chambering device for drilling | |
| CN104612647A (en) | Switchable well cementation sliding sleeve based on fracturing of separate layers and construction method thereof | |
| CN201486515U (en) | Switch type releasing packer | |
| CN104234654B (en) | A kind of underground hydraulic pressure bumper stuck releasing device | |
| CN204060596U (en) | A kind of down-hole unfreezing hydraulic force increasing device | |
| CN204457637U (en) | Hydraulic variable diameter milling pipeline scraper | |
| CN201599007U (en) | Ball valve type internal and external integrated downhole blow-out preventer | |
| CN201074502Y (en) | Dual-valve plate type subsurface safety valve | |
| CN204126598U (en) | Repeatedly activate bypass system | |
| CN104653136A (en) | General tubing downhole composite bridge plug drilling and grinding method | |
| CN105422041A (en) | Multiple-activation bypass system | |
| CN200992982Y (en) | One-trip string hydraulic setting squeezing bridge plug | |
| CN202707024U (en) | Immovable separate stratum fracture technology pipe column | |
| CN101519954A (en) | Multifunctional combination operation process and device for injection pump unit | |
| CN201318149Y (en) | Unidirectional inner blowout control pump-out type blanking plug | |
| CN203655228U (en) | Multistage ball-throwing recoverable sliding sleeve | |
| CN105545255A (en) | Novel oil-field long-acting water-exclusion-oil-exploiting pipe column | |
| CN109025875B (en) | Hydraulic differential mechanism with built-in steel balls | |
| CN103711456A (en) | Hydraulic switching tool for deep-water oil well | |
| CN201092845Y (en) | Hydraulic pressure, double back-off hand type dragable bridge plug | |
| CN104019030B (en) | A kind of reacting cycle liquid drives the discharge device of oil pumping screw pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20130918 Termination date: 20160414 |