CN207813537U - Hydraulic release device - Google Patents
Hydraulic release device Download PDFInfo
- Publication number
- CN207813537U CN207813537U CN201721757402.1U CN201721757402U CN207813537U CN 207813537 U CN207813537 U CN 207813537U CN 201721757402 U CN201721757402 U CN 201721757402U CN 207813537 U CN207813537 U CN 207813537U
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- China
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- top connection
- elastic claw
- fluid cylinder
- release device
- hydraulic release
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Abstract
The utility model is related to downhole tool technical fields, it is hydraulic release device, it includes top connection, fluid cylinder, elastic claw set, shear pin, lower contact and pressure transmission hole, lower contact is equipped with below top connection, lower contact upper outside is installed with by shear pin can be along the fluid cylinder of top connection outer wall uplink, top connection lower part is located in fluid cylinder, cylinder body convex block is equipped on the inside of fluid cylinder upper end, the elastic claw set positioned at cylinder body underbump is equipped on the inside of fluid cylinder, elastic claw set upper inner is fixedly installed togather with top connection lower inside.The utility model is reasonable for structure, it is easy to use, by pitching build the pressure cut shear pin make fluid cylinder liquid in pipe pressure effect under uplink, to discharge elastic claw set realize top connection and lower contact disengaging, meet field demand and complete follow-up construction operation, has the characteristics that reliable, safe and easy.
Description
Technical field
The utility model is related to downhole tool technical fields, are a kind of hydraulic release devices.
Background technology
It is frequently necessary to pipe string being sent into oil well in oil gas field construction, pipe string is generally divided into upper tube string and lower tube string
Two parts, pipe string enters after oil well makes upper tube string be detached from lower tube string by releasing device, and upper tube string is proposed ground,
Lower tube string stays in well, and to meet the requirement of live completion practice, the releasing device of onsite application is using process at present
In it is unreliable, or even occur can not complete operation of giving up, influence subsequent construction operation, cause damages.
Invention content
The utility model provides hydraulic release device, overcomes the deficiency of the above-mentioned prior art, can effectively solve existing
There is traditional releasing device in operation of giving up, releasing device is unreliable, cannot efficiently accomplish shop problem of giving up.
The technical solution of the utility model is realized by following measures：Hydraulic release device, including top connection, liquid
Cylinder, elastic claw set, shear pin and lower contact, top connection lower section are equipped with lower contact, and lower contact upper outside passes through shear pin
Being installed with can be located at along the fluid cylinder of top connection outer wall uplink, top connection lower part in fluid cylinder, and cylinder body is equipped on the inside of fluid cylinder upper end
Convex block, fluid cylinder inside are equipped with the elastic claw set positioned at cylinder body underbump, and elastic claw covers upper inner and top connection lower outside
It is fixedly installed togather, no less than two open slots, the lower part of elastic claw set is distributed in the lower circumference of elastic claw set side wall
It is separated into positioning calvus identical with open slot quantity by open slot, is respectively and fixedly provided with inside and outside each lower part for positioning calvus
The lower contact outside of boss locating piece, corresponding boss locating piece position is provided with locating slot, and the boss locating piece of inside passes through liquid
The inner wall of cylinder, which squeezes, to be located in locating slot, and circumferentially there is at least one inside and outside perforation in top connection lower part and is located at cylinder body convex block
Pressure transmission hole between being covered with elastic claw.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution：
The outer land being located above fluid cylinder can be equipped on the outside of above-mentioned top connection upper end.
The diameter of above-mentioned pressure transmission hole is between 8mm between 12mm.
It is close can be equipped at least one O shapes for position between the top connection and cylinder body convex block of above-mentioned corresponding pressure transmission hole top position
Seal is equipped at least one O-ring seals between corresponding elastic claw set and shear pin between the lower contact and fluid cylinder of position.
Above-mentioned elastic claw set upper inner can be connected through a screw thread with top connection lower inside.
The utility model is reasonable for structure, easy to use, so that fluid cylinder is acted in liquid in pipe pressure by cutting shear pin
Lower uplink meets field demand and completes follow-up construction operation to discharge the disengaging that elastic claw set realizes top connection and lower contact,
Have the characteristics that reliable, safe and easy.
Description of the drawings
Attached drawing 1 is the main view half section schematic of the best embodiment of the utility model.
Attached drawing 2 is the main view half section schematic under fluid cylinder uplink state after Fig. 1 shear pins are cut.
Attached drawing 3 is Fig. 1 top connections and the main view half section schematic under lower contact disengaged position.
Coding in attached drawing is respectively：1 is top connection, and 2 be fluid cylinder, and 3 be elastic claw set, and 4 be shear pin, 5 be under connect
Head, 6 be pressure transmission hole, and 7 be cylinder body convex block, and 8 be open slot, and 9 is position calvus, and 10 be boss locating piece, and 11 be locating slot, and 12 are
Outer land, 13 be O-ring seals.
Specific implementation mode
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
In the present invention, for ease of description, the description of the relative position relation of each component is according to specification
The Butut mode of attached drawing 1 is described, such as：The position relationship of front, rear, top, and bottom, left and right etc. is according to Figure of description
Butut direction determine.
The utility model is further described with reference to embodiment and attached drawing：
As shown in attached drawing 1,2,3, which includes top connection 1, fluid cylinder 2, elastic claw set 3,4 and of shear pin
Lower contact 5, the lower section of top connection 1 are equipped with lower contact 5, and 5 upper outside of lower contact is installed with by shear pin 4 can be along above connecing
The fluid cylinder 2 of first 1 outer wall uplink, 1 lower part of top connection are located in fluid cylinder 2, are equipped with cylinder body convex block 7 on the inside of 2 upper end of fluid cylinder, in fluid cylinder 2
Side is equipped with the elastic claw set 3 for being located at 7 lower section of cylinder body convex block, and elastic claw covers 3 upper inners and is fixedly mounted with 1 lower outside of top connection
Together, no less than two open slots 8 are distributed in the lower circumference of 3 side walls of elastic claw set, and the lower part of elastic claw set 3 is by opening
Mouth slot 8 is separated into positioning calvus 9 identical with 8 quantity of open slot, is respectively and fixedly provided with inside and outside each lower part for positioning calvus 9 convex
5 outside of lower contact of platform locating piece 10, corresponding 10 position of boss locating piece is provided with locating slot 11, the boss locating piece 10 of inside
It is squeezed and is located in locating slot 11 by the inner wall of fluid cylinder 2, at least one inside and outside perforation and position are circumferentially arranged at 1 lower part of top connection
Pressure transmission hole 6 between cylinder body convex block 7 and elastic claw set 3.In use, the utility model is connected to design pipe string
It is interior, when lower tube string is transferred in the well section of design, the ball that builds the pressure is put into upper tube string, blocks pipe string inner cycle channel,
It builds the pressure, when pressure rises to the pressure value that can cut shear pin 4, shear pin 4 is cut, and fluid cylinder 2 is in pipe
Start uplink under the action of fluid pressure, it is convex when 2 lower face of fluid cylinder goes upward to boss 10 top of locating piece of elastic claw set 3
10 outer diameter direction of platform locating piece loses the pressure from 2 inner wall of fluid cylinder, restores reset condition, is disengaged with locating slot 11（Such as Fig. 2 institutes
Show）, upper tube string is above carried at this time, and upper tube string is proposed into ground, lower tube string is stayed in well, completes operation of giving up（Such as Fig. 3
It is shown）, according to demand, the lower part of elastic claw set 3 can be separated into 12 positioning calvus 9, the material of elastic claw set 3 by open slot 8
Elasticity may be selected preferably and the higher material of tensile strength in material, such as 65Mn.The utility model is reasonable for structure, easy to use, passes through
Pitching build the pressure cut shear pin 4 make fluid cylinder 2 liquid in pipe pressure effect under uplink, to discharge elastic claw set 3 realize on
The disengaging of connector 1 and lower contact 5 meets field demand and completes follow-up construction operation, has the characteristics that reliable, safe and easy.
Above-mentioned hydraulic release device can be made further optimization and/or improvements according to actual needs：
The outer land 12 for being located at 2 top of fluid cylinder is equipped with as shown in attached drawing 1,2,3, on the outside of 1 upper end of top connection.Using process
In, 2 uplink of fluid cylinder can be limited by outer land 12.
As shown in attached drawing 1,2,3, the diameter of pressure transmission hole 6 is between 8mm between 12mm.In use, it can be connect upper
Pressure transmission hole 6 of four inside and outside through diameters between 8mm-12mm is designed in first 1 lower part, and the utility model can be made smoothly to cut
It cuts pin 4 and after cutting shear pin 4, liquid, which can smoothly be flowed out from pressure transmission hole 6, pushes 2 uplink of fluid cylinder.
As shown in attached drawing 1,2,3, position is equipped between the top connection 1 and cylinder body convex block 7 of 6 top position of corresponding pressure transmission hole
At least one O-ring seals 13 are installed between corresponding elastic claw set 3 and shear pin 4 between the lower contact 5 and fluid cylinder 2 of position
There are at least one O-ring seals 13.In use, it can guarantee the leakproofness in pipe by installing O-ring seals 13, to
Construction operation is set to be smoothed out.
As shown in attached drawing 1,2,3, elastic claw covers 3 upper inners and is connected through a screw thread with 1 lower inside of top connection.It is using
In the process, easy to disassemble using being threadedly coupled, screw thread glue can be applied at screw thread ensures that elastic claw covers the sealing between 3 and top connection 1
Property.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, to meet the needs of different situations according to actual needs.
Claims (8)
1. hydraulic release device, it is characterised in that including top connection, fluid cylinder, elastic claw set, shear pin and lower contact, top connection
Lower section be equipped with lower contact, lower contact upper outside by shear pin be installed with can along the fluid cylinder of top connection outer wall uplink,
Top connection lower part is located in fluid cylinder, and cylinder body convex block is equipped on the inside of fluid cylinder upper end, is equipped with positioned at cylinder body underbump on the inside of fluid cylinder
Elastic claw set, elastic claw set upper inner are fixedly installed togather with top connection lower outside, and elastic claw covers the lower part circle of side wall
No less than two open slots are distributed with week, it is identical with open slot quantity fixed that the lower part that elastic claw covers is separated by open slot
Position calvus each positions and is respectively and fixedly provided with boss locating piece inside and outside the lower part of calvus, and corresponding boss locating piece connects under position
Head outside is provided with locating slot, and the boss locating piece of inside is squeezed by the inner wall of fluid cylinder to be located in locating slot, top connection lower part
Circumferentially there are at least one inside and outside perforation and the pressure transmission hole between cylinder body convex block and elastic claw set.
2. hydraulic release device according to claim 1, it is characterised in that：It is equipped with and is located on fluid cylinder on the outside of top connection upper end
The outer land of side.
3. hydraulic release device according to claim 1 or 2, it is characterised in that：The diameter of pressure transmission hole is between 8mm to 12mm
Between.
4. hydraulic release device according to claim 1 or 2, it is characterised in that：It is connect on corresponding pressure transmission hole top position
Position is equipped at least one O-ring seals between head and cylinder body convex block, position between corresponding elastic claw set and shear pin
At least one O-ring seals are installed between lower contact and fluid cylinder.
5. hydraulic release device according to claim 3, it is characterised in that：The top connection of corresponding pressure transmission hole top position with
Position is equipped at least one O-ring seals between cylinder body convex block, is connect under position between corresponding elastic claw set and shear pin
At least one O-ring seals are installed between head and fluid cylinder.
6. according to the hydraulic release device described in claims 1 or 2 or 5, it is characterised in that：Elastic claw covers upper inner and above connects
Head lower inside is connected through a screw thread.
7. hydraulic release device according to claim 3, it is characterised in that：Elastic claw covers upper inner and top connection lower part
Inside is connected through a screw thread.
8. hydraulic release device according to claim 4, it is characterised in that：Elastic claw covers upper inner and top connection lower part
Inside is connected through a screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721757402.1U CN207813537U (en) | 2017-12-15 | 2017-12-15 | Hydraulic release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721757402.1U CN207813537U (en) | 2017-12-15 | 2017-12-15 | Hydraulic release device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207813537U true CN207813537U (en) | 2018-09-04 |
Family
ID=63331625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721757402.1U Active CN207813537U (en) | 2017-12-15 | 2017-12-15 | Hydraulic release device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207813537U (en) |
-
2017
- 2017-12-15 CN CN201721757402.1U patent/CN207813537U/en active Active
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| GR01 | Patent grant |