CN208546156U - A kind of hydraulic control sliding sleeve - Google Patents
A kind of hydraulic control sliding sleeve Download PDFInfo
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- CN208546156U CN208546156U CN201821132944.4U CN201821132944U CN208546156U CN 208546156 U CN208546156 U CN 208546156U CN 201821132944 U CN201821132944 U CN 201821132944U CN 208546156 U CN208546156 U CN 208546156U
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- cylinder
- transit joint
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- seal
- driving
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Abstract
The utility model 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 in First Transition connector, cylinder block, the second transit joint with the lower end of 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 utility model has the advantages that structure is simple and convenient to operate, is safe and reliable, is high-efficient.
Description
Technical field
The utility model belongs to oil and gas exploitation well liquid control tool, and in particular to a kind of hydraulic control sliding sleeve.
Background technique
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
Configure two control pipelines, 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.
Utility model content
The hydraulic control that the purpose of the utility model is to provide a kind of structures to be simple and convenient to operate, safe and reliable, high-efficient
Sliding sleeve.
Hydraulic control sliding sleeve provided by the utility model, including sequentially connected top connection, driving cylinder barrel, center tap, the
One transit joint, cylinder block, the second transit joint, lower contact；Driving piston is located in top connection and driving cylinder barrel with sealing
Circle seals to form hydraulic cylinder with top connection and driving cylinder barrel, 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 and upper in center tap with being located at
Lower two groups of combination seals form sealing, and the top tube wall of central tube is open equipped with multiple tracks first；Cylinder piston is located at first
In transit joint, cylinder block, the second transit joint with the lower end of central tube against, and with sealing ring and First Transition connector,
Cylinder block, the second transit joint form 2 seal cavities up and down；The tube wall being located between two groups of combination seals on center tap
Being equipped with multiple tracks can be fixed on the second transit joint and lower seal cavity with the second opening of the first open communication, valve body
Connection.
The valve body includes shell, is located at the intracorporal sealing bar of shell, the pressure spring for resetting sealing bar, is set in sealing bar
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 and sealing bar seal, stifled tail portion and the sealing for being threadably coupled within shell of tail.
The utility model has the beneficial effects that
The hydraulic control sliding sleeve of the utility model is a kind of underground used when needing and repeatedly carrying out oil jacket switching operations
Tool.Hydraulic control sliding sleeve is connect in lower going-into-well with a very long capillary control pipeline, passes through liquid controling pipe line to well on ground
Under hydraulic control sliding sleeve suppress, push the driving piston downlink in hydraulic control sliding sleeve, and push up central tube downwards, overcome high pressure nitrogen chamber
Pressure, move down central tube, when central tube moves down into open position realize hydraulic control sliding sleeve unlatching, this when casing and
Oil pipe fluid connection, well liquid can realize tubing and casing circulation by the aperture of sliding sleeve.When needing to close, liquid controling pipe line release, in
Heart pipe is realized under the promotion of high pressure nitrogen chamber moves up reset, closes hydraulic control sliding sleeve.The size of liquid controling pipe line cracking pressure by
The blowing pressure of high pressure nitrogen chamber determines, can carry out pressure adjustment according to different design requirements.
The utility model, which realizes, is only utilized a control pipeline in ground control sliding sleeve switch, reduces potential wind
Danger.Well head controls pipeline pressurization opening sliding sleeve, and release is shut off sliding sleeve, the operation of underground multiple switching is made to become simple and fast.
The utility model has the advantage that
1. the mode of the utility model hydraulic control realizes that sliding sleeve opens and closes, high relative to traditional steel wire switching sliding sleeve
Effect is quick, facilitates the repeated multiple times switch operation in underground；
2. realize the opening and closing of a root canal line traffic control hydraulic control sliding sleeve, simplify operation, reduce operating cost and
Risk；
3. providing 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. switching under operating condition repeatedly, the reliability that movement is smooth and seals can guarantee.
The technical solution of the utility model is further illustrated with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is enlarged drawing at A in Fig. 1.
Fig. 3 is the schematic illustration of utility model.
Specific embodiment
As shown in Figure 1 and Figure 2, hydraulic control sliding sleeve provided by the utility model, including top connection 1, driving cylinder barrel 5, in connect
First 7, First Transition connector 9, cylinder block 11, the second transit joint 12, lower contact 13, they are successively threadedly coupled and close
Envelope；Driving piston 2 be located in top connection 1 and driving cylinder barrel 5 with O-ring a and top connection 1 and drive cylinder barrel 5 seal formed it is hydraulic
Cylinder, control pipeline 3 is fixed in top connection 1 with pipe joint 4 to be connected to hydraulic cylinder；Central tube 6 be located at driving cylinder barrel 5, in connect
First 7 and First Transition connector 9 in driving piston 2 lower end against, and be located at center tap 7 in two groups of combination sealings up and down
Part 8 forms sealing, and the top tube wall of central tube 6 is equipped with the opening of multiple tracks first I；Cylinder piston 10 be located at First Transition connector 9,
With the lower end of central tube 6 against and with O-ring b and First Transition connector 9, cylinder in cylinder block 11, the second transit joint 12
Cylinder body 11, the second transit joint 12 form 2 seal cavities up and down；The pipe being located between two groups of combination seals 8 on center tap 7
Wall is equipped with the second opening II that multiple tracks can be connected to the first opening I；Valve body 14 is that check valve plays gas injection, sealing function,
It is fixed on the second transit joint 12 with screw thread and sealing ring and is 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 pressure 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 is passed through high pressure gas, opens sealing bar 1403, sealed cushion cover 1407 and opens the gap between 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 pressure spring 1404, forms air seal, screw out gas connection, be screwed into tail stifled 1409, complete gas replenishment process.
When utility model works, the hydraulic action from control pipeline 3 forms driving force F1, gas on driving piston 2
Gas has pressure difference in the upper-lower seal cavity at 10 both ends of the cylinder piston, will form screen resilience F2 when cylinder piston 10 moves, and drives
Power F1 and screen resilience F2 are acted on central tube 6, and when driving force F1 is greater than screen resilience F2, central tube 6 is moved down to the right, the
One opening 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
(reset), 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 be located in center tap two groups up and down
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 between two groups of combination seals on center tap 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, to be located at shell intracorporal
Sealing bar, the pressure spring for resetting sealing bar, the sealing cushion cover and pressure cap for being set in sealing rod rear end, pressure cap and shell screw thread join
It connects, shell and the second transit joint thread connection simultaneously seal, and sealing cushion cover and sealing bar seal, and tail is stifled to be threadably coupled within shell
Tail portion simultaneously seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821132944.4U CN208546156U (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 |
|---|---|---|---|
| CN201821132944.4U CN208546156U (en) | 2018-07-17 | 2018-07-17 | A kind of hydraulic control sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208546156U true CN208546156U (en) | 2019-02-26 |
Family
ID=65424917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821132944.4U Active CN208546156U (en) | 2018-07-17 | 2018-07-17 | A kind of hydraulic control sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208546156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943165A (en) * | 2021-02-05 | 2021-06-11 | 东营市昌瑞石油机械配件有限责任公司 | Linkage type hydraulic layer-changing switch |
-
2018
- 2018-07-17 CN CN201821132944.4U patent/CN208546156U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943165A (en) * | 2021-02-05 | 2021-06-11 | 东营市昌瑞石油机械配件有限责任公司 | Linkage type hydraulic layer-changing switch |
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