CN108756815A - A kind of hydraulic control sliding sleeve - Google Patents
A kind of hydraulic control sliding sleeve Download PDFInfo
- Publication number
- CN108756815A CN108756815A CN201810786149.5A CN201810786149A CN108756815A CN 108756815 A CN108756815 A CN 108756815A CN 201810786149 A CN201810786149 A CN 201810786149A CN 108756815 A CN108756815 A CN 108756815A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- sealing
- transit joint
- driving
- center tap
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000007704 transition Effects 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses a kind of hydraulic control sliding sleeves, including sequentially connected top connection, driving cylinder barrel, center tap, First Transition connector, cylinder block, the second transit joint, lower contact；Driving piston is located in top connection and driving cylinder barrel and forms hydraulic cylinder, and control pipeline is fixed in top connection to be connected to hydraulic cylinder；Central tube be located at driving cylinder barrel, in center tap and First Transition connector with the lower end of driving piston against；Cylinder piston is located at the lower end in First Transition connector, cylinder block, the second transit joint with central tube against and forming 2 seal cavities up and down with sealing ring and First Transition connector, cylinder block, the second transit joint；The first opening and the second opening of dislocation are respectively equipped on the tube wall of center tap and central tube, valve body is fixed on the second transit joint to be connected to lower seal cavity.The present invention has the advantages that simple in structure, easy to operate, safe and reliable, efficient.
Description
Technical field
The invention belongs to oil and gas exploitation well liquids to control tool, and in particular to a kind of hydraulic control sliding sleeve.
Background technology
In modern oil-gas mining, the liquid circulation operation between oil pipe and casing is a kind of widely used downhole operations
Program, it is therefore an objective to establish the circulation canal between oil pipe and casing, realize that the underground equipment of this function is called sliding sleeve.Common
Sliding sleeve is that the opening and closing of sliding sleeve are realized with switching tools by way of steel wire operation, for a sliding sleeve, is generally needed
Two control pipelines are configured, a unlatching, a closing, this Job Operations are cumbersome and heavy workload, cannot be efficiently real
Now repeatedly switch repeatedly, it is especially extremely inconvenient to the prospect pit for needing repeatedly test jobs.
Invention content
The object of the present invention is to provide a kind of hydraulic control cunnings simple in structure, easy to operate, safe and reliable, efficient
Set.
Hydraulic control sliding sleeve provided by the invention, including sequentially connected top connection, driving cylinder barrel, center tap, the first mistake
Cross connector, cylinder block, the second transit joint, lower contact；Driving piston be located in top connection and driving cylinder barrel with sealing ring and
Top connection and driving cylinder barrel seal to form hydraulic cylinder, and control pipeline is fixed in top connection to be connected to hydraulic cylinder；Central tube is located at
Drive cylinder barrel, in center tap and First Transition connector with the lower end of driving piston against, and with up and down two in center tap
Group combination seal forms sealing, and the top tube wall of central tube is open equipped with multiple tracks first；Cylinder piston is located at First Transition
With the lower end of central tube against and with sealing ring and First Transition connector, cylinder in connector, cylinder block, the second transit joint
Cylinder body, the second transit joint form 2 seal cavities up and down；It is located on center tap on the tube wall between two groups of combination seals and sets
There is multiple tracks can be with the second opening of the first open communication, valve body is fixed on the second transit joint to be connected with lower seal cavity
It is logical.
The valve body includes shell, is located in shell sealing bar, is set in sealing bar at the compression spring for making sealing bar reset
The sealing cushion cover and pressure cap of rear end, pressure cap and shell thread connection, shell and the second transit joint thread connection simultaneously seal, sealing
Cushion cover is sealed with sealing bar, stifled tail portion and the sealing for being threadably coupled within shell of tail.
Beneficial effects of the present invention：
The hydraulic control sliding sleeve of the present invention is a kind of in the downhole tool for needing the when of repeatedly carrying out oil jacket switching operations to use.Hydraulic pressure
Control sliding sleeve is connect with a very long capillary control pipeline in lower going-into-well, is slided to the hydraulic control of underground by liquid controling pipe line on ground
Set is suppressed, and is pushed the driving descent of piston in hydraulic control sliding sleeve, and push up central tube downwards, is overcome the pressure of high pressure nitrogen chamber, make
Central tube moves down, and realizes the unlatching of hydraulic control sliding sleeve when central tube moves down into open position, this when casing and oil pipe liquid
Connection, well liquid can realize tubing and casing cycle by the trepanning of sliding sleeve.When needing to close, liquid controling pipe line release, central tube is in height
It presses realization under the promotion of nitrogen chamber to move up reset, closes hydraulic control sliding sleeve.The size of liquid controling pipe line Opening pressure is by high pressure nitrogen
The blowing pressure of chamber determines, pressure adjustment can be carried out according to different design requirements.
The invention, which realizes, is only utilized a control pipeline in ground control sliding sleeve switch, reduces potential risk.Well
Mouth control pipeline pressurization opening sliding sleeve, release are shut off sliding sleeve, the operation of underground multiple switching are made to become simple and fast.
The present invention has the following advantages：
1. relative to traditional steel wire switching sliding sleeve, the mode of present invention hydraulic control realizes that sliding sleeve opens and closes, efficient quick,
Facilitate the repeated multiple times switching manipulation in underground；
2. realizing the opening and closing of a pipeline control hydraulic control sliding sleeve, simplifies operation, reduce operating cost and wind
Danger；
3. being provided using elevated pressure nitrogen air cavity and closing pressure, it is adjustable to close pressure size；
4. realizing the function of switch using the identical steel wire tool operation mode of common sliding sleeve, make operation generalization；
After 5. hydraulic control is closed, it can be ensured that sealing, and reach relevant pressure grade；
6. repeatedly under the conditions of switching manipulation, can guarantee the reliability that action is smooth and seals.
The technical solution further illustrated the present invention below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is enlarged drawing at A in Fig. 1.
Fig. 3 is the principle schematic of invention.
Specific implementation mode
As shown in Figure 1 and Figure 2, hydraulic control sliding sleeve provided by the invention, including top connection 1, driving cylinder barrel 5, center tap 7,
First Transition connector 9, cylinder block 11, the second transit joint 12, lower contact 13, they are threadedly coupled and seal successively；It drives
Piston 2 is located in top connection 1 and driving cylinder barrel 5 and forms hydraulic cylinder with O-ring a and top connection 1 and the driving sealing of cylinder barrel 5, controls
Tubulation line 3 is fixed in top connection 1 with pipe joint 4 and is connected to hydraulic cylinder；Central tube 6 is located at driving cylinder barrel 5,7 and of center tap
In First Transition connector 9 with the lower end of driving piston 2 against, and with two groups of 8 shapes of combination seal up and down in center tap 7
At sealing, the top tube wall of central tube 6 is equipped with the opening of multiple tracks first I；Cylinder piston 10 is located at First Transition connector 9, cylinder
With the lower end of central tube 6 against and with O-ring b and First Transition connector 9, cylinder block in cylinder body 11, the second transit joint 12
11, the second transit joint 12 forms 2 seal cavities up and down；It is located on center tap 7 on the tube wall between two groups of combination seals 8
The second opening II that can be connected to the first opening I equipped with multiple tracks；Valve body 14 is that check valve plays gas injection, sealing function, with spiral shell
Line and sealing ring are fixed on the second transit joint 12 and are connected to lower seal cavity.
See that Fig. 2, the valve body 14 include shell 1401, the sealing bar 1403 being located in shell 1401, make sealing bar
The compression spring 1404 of 1403 resets, the sealing cushion cover 1407 and pressure cap 1408 for being set in 1403 rear end of sealing bar, pressure cap 1408 and shell
1401 thread connection of body, shell 1401 and 12 thread connection of the second transit joint are simultaneously sealed with sealing element 1402, seal cushion cover
1407 are sealed with sealing element 1405,1406 and sealing bar 1403, and tail stifled 1409 is threadably coupled within the tail portion of shell 1401 and with close
Sealing 1410,1411 seals.When inflation, unscrewing tail stifled 1409 is screwed into gas-tpe fitting, gas-tpe fitting forms close with shell 1401
Envelope, gas tube are passed through high pressure gas, open-top sealing bar 1403, the gap between sealed cushion cover 1407 and open-top sealing bar 1403
Into the lower seal cavity of 10 lower end of cylinder piston, it is filled with gas, is inflated to predetermined pressure, gas tube pressure release, sealing bar 1403
It is resetted under the action of compression spring 1404, forms air seal, screw out gas connection, be screwed into tail stifled 1409, complete gas replenishment process.
When the present invention works, the hydraulic action from control pipeline 3 forms driving force F1 on driving piston 2, and cylinder is lived
Filling in gas in the upper-lower seal cavity at 10 both ends has pressure difference, and screen resilience F2, driving force can be formed when cylinder piston 10 moves
F1 and screen resilience F2 are acted on central tube 6, and when driving force F1 is more than screen resilience F2, central tube 6 moves down to the right, and first opens
Mouth I is connected to II overlapping of the second opening, and sliding sleeve is opened；When driving force F1 is less than screen resilience F2, central tube 6 moves up to the left（It is multiple
Position）, the first opening I and the second opening II deviate from, and sliding sleeve is closed, as shown in Figure 3.
Claims (2)
1. a kind of hydraulic control sliding sleeve, it is characterized in that including sequentially connected top connection, driving cylinder barrel, center tap, First Transition
Connector, cylinder block, the second transit joint, lower contact；Driving piston be located at top connection and driving cylinder barrel it is interior with sealing ring with it is upper
Connector and driving cylinder barrel seal to form hydraulic cylinder, and control pipeline is fixed in top connection to be connected to hydraulic cylinder；Central tube is located at drive
In moveable cylinder, center tap and First Transition connector with the lower end of driving piston against, and with two groups up and down in center tap
Combination seal forms sealing, and the top tube wall of central tube is open equipped with multiple tracks first；Cylinder piston is located at First Transition and connects
With the lower end of central tube against and with sealing ring and First Transition connector, cylinder cylinder in head, cylinder block, the second transit joint
Body, the second transit joint form 2 seal cavities up and down；The tube wall being located on center tap between two groups of combination seals is equipped with
Multiple tracks can be with the second opening of the first open communication, and valve body is fixed on the second transit joint to be connected to lower seal cavity.
2. hydraulic control sliding sleeve according to claim 1, it is characterized in that the valve body includes shell, is located in shell
Sealing bar, the compression spring for making sealing bar reset, the sealing cushion cover and pressure cap for being set in sealing rod rear end, pressure cap join with shell screw thread
It connects, shell and the second transit joint thread connection simultaneously seal, and sealing cushion cover is sealed with sealing bar, and tail is stifled to be threadably coupled within shell
Tail portion simultaneously seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810786149.5A CN108756815A (en) | 2018-07-17 | 2018-07-17 | A kind of hydraulic control sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810786149.5A CN108756815A (en) | 2018-07-17 | 2018-07-17 | A kind of hydraulic control sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108756815A true CN108756815A (en) | 2018-11-06 |
Family
ID=63970309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810786149.5A Pending CN108756815A (en) | 2018-07-17 | 2018-07-17 | A kind of hydraulic control sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108756815A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663920A (en) * | 2020-04-23 | 2020-09-15 | 中国海洋石油集团有限公司 | Control method for controlling six-layer sliding sleeve by three pipelines |
| CN111927392A (en) * | 2020-08-17 | 2020-11-13 | 川南航天能源科技有限公司 | Hydraulic control type switch sliding sleeve |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1423293A (en) * | 1973-01-04 | 1976-02-04 | Hydril Co | Apparatus for use in a well |
| US5197544A (en) * | 1991-02-28 | 1993-03-30 | Halliburton Company | Method for clay stabilization with quaternary amines |
| US5380706A (en) * | 1991-12-06 | 1995-01-10 | Halliburton Company | Well drilling fluids and methods |
| US20070173414A1 (en) * | 2006-01-09 | 2007-07-26 | Clearwater International, Inc. | Well drilling fluids having clay control properties |
| CN202165053U (en) * | 2011-08-30 | 2012-03-14 | 靳涛 | Novel hydraulic control underground sliding sleeve switch valve |
| CN202483508U (en) * | 2012-03-20 | 2012-10-10 | 胜利油田胜机石油装备有限公司 | Double-cylinder hydraulic security valve |
| CN202673243U (en) * | 2012-07-06 | 2013-01-16 | 金显军 | Ocean oil well hydraulic sliding sleeve device |
| CN203145895U (en) * | 2013-03-12 | 2013-08-21 | 中国海洋石油总公司 | Downhole automatic-control sliding sleeve device of multiple-pressure-layer-series oil and gas development |
| CN106593347A (en) * | 2016-12-29 | 2017-04-26 | 中国石油天然气股份有限公司 | Plugging device |
-
2018
- 2018-07-17 CN CN201810786149.5A patent/CN108756815A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1423293A (en) * | 1973-01-04 | 1976-02-04 | Hydril Co | Apparatus for use in a well |
| US5197544A (en) * | 1991-02-28 | 1993-03-30 | Halliburton Company | Method for clay stabilization with quaternary amines |
| US5380706A (en) * | 1991-12-06 | 1995-01-10 | Halliburton Company | Well drilling fluids and methods |
| US20070173414A1 (en) * | 2006-01-09 | 2007-07-26 | Clearwater International, Inc. | Well drilling fluids having clay control properties |
| CN202165053U (en) * | 2011-08-30 | 2012-03-14 | 靳涛 | Novel hydraulic control underground sliding sleeve switch valve |
| CN202483508U (en) * | 2012-03-20 | 2012-10-10 | 胜利油田胜机石油装备有限公司 | Double-cylinder hydraulic security valve |
| CN202673243U (en) * | 2012-07-06 | 2013-01-16 | 金显军 | Ocean oil well hydraulic sliding sleeve device |
| CN203145895U (en) * | 2013-03-12 | 2013-08-21 | 中国海洋石油总公司 | Downhole automatic-control sliding sleeve device of multiple-pressure-layer-series oil and gas development |
| CN106593347A (en) * | 2016-12-29 | 2017-04-26 | 中国石油天然气股份有限公司 | Plugging device |
Non-Patent Citations (1)
| Title |
|---|
| 金显军;刘华东;王爱君;: "液控滑套开关在胜利埕岛油田的应用", 才智, no. 31, 30 November 2011 (2011-11-30) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663920A (en) * | 2020-04-23 | 2020-09-15 | 中国海洋石油集团有限公司 | Control method for controlling six-layer sliding sleeve by three pipelines |
| CN111663920B (en) * | 2020-04-23 | 2022-09-09 | 中国海洋石油集团有限公司 | Control method for controlling six-layer sliding sleeve by three pipelines |
| CN111927392A (en) * | 2020-08-17 | 2020-11-13 | 川南航天能源科技有限公司 | Hydraulic control type switch sliding sleeve |
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