CN207332798U - A kind of casing swage lifting type pressure release discharge device - Google Patents
A kind of casing swage lifting type pressure release discharge device Download PDFInfo
- Publication number
- CN207332798U CN207332798U CN201721352927.7U CN201721352927U CN207332798U CN 207332798 U CN207332798 U CN 207332798U CN 201721352927 U CN201721352927 U CN 201721352927U CN 207332798 U CN207332798 U CN 207332798U
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- China
- Prior art keywords
- slidably connected
- pressure release
- central shaft
- chain
- axis
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- 239000012530 fluid Substances 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 210000004907 gland Anatomy 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 description 11
- 238000007789 sealing Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
The utility model discloses a kind of casing swage lifting type pressure release discharge device,Including the pressure release aerial drainage fluid cylinder being connected from top to bottom,Balance fluid cylinder,The pressure release aerial drainage fluid cylinder includes central shaft,Chain to be slidably connected set,Be slidably connected axis,The axis that is slidably connected is assemblied in inside chain to be slidably connected set,The central shaft upper end connects the lower semisection for the axis that is slidably connected,Pressure release aerial drainage pressure chamber is formed between the chain to be slidably connected set inner wall and central shaft outer wall,Pressure release aerial drainage chamber is formed between the upper semisection outer wall and chain to be slidably connected set inner wall of the axis that is slidably connected,The chain to be slidably connected set opens up the pressure release relief port for being used to connect pressure release aerial drainage chamber of radial direction,The pressure release relief port is opened and blocked by the lower semisection outer wall for the axis that is slidably connected,The central shaft opens up the central shaft inlet of radial direction,The central shaft inlet makes central shaft inner cavity be connected with pressure release aerial drainage pressure chamber.Solve in casing swage work progress, the low well hydraulic anchor of liquid level is not easy pressure release aerial drainage and releases grappling problem in pit shaft.
Description
Technical field
Oilfield well casing repairing instrument is the utility model is related to, specifically a kind of casing swage lifting type is let out
Press discharge device.
Background technology
With the constant exploitation of oil gas field, casing damage happens occasionally.The damage of casing directly affects oil-water well
Normal production, therefore, it is necessary to carry out casing repairing, recovers oil-water well and normally produces, improve oil-water well utilization rate, extend oil-water well
Cycle lie.At present, domestic to use a kind of underground hydraulic reinforcement casing swage technique, which is ground pump truck
The fluid power of generation is delivered to underground hydraulic pressure shaping tool by tubing string in well, and hydraulic anchor is anchored on casing wall under hydraulic action
On, hydraulic anchor is in anchoring work state, and fluid pressure promotes shaping tool downlink by fluid cylinder, piston assembly, strength, carries out
Casing swage.When liquid cylinder piston completes an impulse stroke, or it is necessary to termination of pumping pressure release when operation pressure reaches design pressure,
Hydraulic anchor should be at the state of disanchoring at this time, and under send tubing string.Shaping process is can be repeated several times, is continuously finished whole casing deformation section
Re-shaping exercise.But some well shaft liquid levels is very low, hydraulic anchor can not be automatically in state of disanchoring, but is in grappling work
Make state, so also just can not and under send tubing string, lead to not carry out follow-up work.
Conventional solution is to install bleeder in hydraulic anchor, and the bleeder used at present is mainly with pin fixed pattern, caber
Based on shearing and pull-type.The common feature of these bleeders is disposable, that is, bleeder cannot make again after hitting
With, that is to say, that be disposable, can not carry out one-trip string repeatedly shaping process, be continuously finished whole casing and become
The re-shaping exercise of shape section, causes construction cost height.
Application number：201520373492.9 publication date 2015-11-11 discloses a kind of down-hole casing Plastic renovation and above carries
Pressure relief device, including：Oil pipe, is connected with lifting sub below oil pipe, and top connection is cased with the middle part of lifting sub, upper
Cylinder sleeve is socketed with the excircle of connector, lower contact is fixedly connected with the lower end inside of cylinder sleeve；In lower contact from top to bottom
Sealing centrum, piston, spring are disposed with, the sealing centrum, piston, spring are arranged in cylinder sleeve；The sealing vertebra
Body is fixed on the lower end of lifting sub, with being connected together above lower contact, and sealing centrum is sleeved in piston, and piston bush is carrying
Rise on pipe nipple；On lifting sub, it is between the bottom of top connection and the top of piston spring pocket.
Although patent document disclosed above also all employs the components such as cylinder sleeve, piston, imitated in overall technical architecture, technology
All differed in the technical problem of fruit and solution with the utility model.
Utility model content
The purpose of this utility model is to provide a kind of casing swage lifting type pressure release discharge device, overcome in the prior art
Can not carry out multiple pressure release eddy flow in the case of pit shaft liquid level is very low the defects of, solve in current casing swage work progress,
The low well hydraulic anchor of liquid level is not easy pressure release aerial drainage and releases grappling problem in pit shaft.Can also in the case of pit shaft liquid level is very low
By manual intervention, realize that hydraulic anchor is in state, one-trip string repeatedly shaping process of disanchoring, be continuously finished whole casing
The re-shaping exercise of deformation section.
In order to achieve the above objectives, the utility model employs following technical solution, a kind of casing swage lifting type pressure release
Discharge device, including pressure release aerial drainage fluid cylinder, the balance fluid cylinder being connected from top to bottom, the pressure release aerial drainage fluid cylinder include center
Axis, chain to be slidably connected set, be slidably connected axis, and the axis that is slidably connected is assemblied in inside chain to be slidably connected set, and the central shaft upper end connects
The lower semisection for the axis that is slidably connected is connect, pressure release aerial drainage pressure chamber, institute are formed between the chain to be slidably connected set inner wall and central shaft outer wall
Formation pressure release aerial drainage chamber, the chain to be slidably connected set between the upper semisection outer wall for the axis that is slidably connected and chain to be slidably connected set inner wall is stated to open up
The pressure release relief port for being used to connect pressure release aerial drainage chamber of radial direction, the pressure release relief port are carried out by the lower semisection outer wall for the axis that is slidably connected
Open and closure, the central shaft open up the central shaft inlet of radial direction, which makes central shaft inner cavity and pressure release
Aerial drainage pressure chamber is connected.
The balance fluid cylinder includes cylinder sleeve, piston, piston rod, and the cylinder sleeve upper end connects the company of slip by cylinder sleeve connector
Female connector, the piston are arranged in cylinder sleeve, and the piston rod upper end is connected to piston inner wall, the central shaft lower end connection
In piston upper end inner wall, the cylinder sleeve inner cavity above piston is balance fluid cylinder chamber, and the cylinder sleeve inner cavity below piston is flat
Weigh fluid cylinder pressure chamber, and the piston rod opens up the balance fluid cylinder import of radial direction, which makes piston rod cavity with putting down
Weighing apparatus fluid cylinder pressure chamber is connected, and the cylinder sleeve opens up the balance fluid cylinder outlet for being used to connect balance fluid cylinder chamber of radial direction.
Described be slidably connected between axis and chain to be slidably connected set sets chain to be slidably connected set seal, and the axis that is slidably connected is with
The shaft seal that is slidably connected is set between mandrel.
Cylinder sleeve connector seal is set between the cylinder sleeve connector and central shaft.
Cylinder sleeve gland is installed in the cylinder sleeve lower end, and gland packing element is set between cylinder sleeve gland and piston rod.
The set upper side connection top connection that is slidably connected, the piston-rod lower end connect lower contact.
It is slidably connected between axis upper surface and top connection lower face and forms upper pressure chamber, upper pressure chamber connects pressure release aerial drainage
Chamber.
The axis that is slidably connected forms spline fitted with chain to be slidably connected set.
The axis that is slidably connected forms six sides with chain to be slidably connected set and coordinates.
The utility model has the advantages that compared with prior art：
During work, the pressure release relief port in pressure release aerial drainage fluid cylinder is in sealing state, and begins under the balance of balance fluid cylinder
Sealing state is in, it is necessary to during pressure release eventually, the pressure release relief port in pressure release aerial drainage fluid cylinder is in pressure release aerial drainage with regard to upper lifting pipe post
State, sealing state and pressure release bleed state conversion side make, and engineering accident will not occur, improve construction efficiency, reduce work
Industry cost.
Brief description of the drawings
Fig. 1 is the structure diagram before a kind of casing swage lifting type pressure release discharge device pressure release aerial drainage of the utility model.
Fig. 2 is the cross-sectional view after the utility model chain to be slidably connected set, the axis that is slidably connected cooperation.
Fig. 3 is the structure diagram after a kind of casing swage lifting type pressure release discharge device pressure release aerial drainage of the utility model.
In figure：1. top connection, 2. chain to be slidably connected set, 3. be slidably connected axis, 4. pressure release relief ports, 4.1. pressure release aerial drainages chamber,
4.2. upper pressure chamber, 5. chain to be slidably connected set seals, 6. be slidably connected shaft seal, 7. central shaft inlets, 7.1. pressure releases are let out
Flowing pressure chamber, 8. central shafts, 9. cylinder sleeve connectors, 10. cylinder sleeve connector seals, 11. balance fluid cylinder outlets, 11.1. balances
Fluid cylinder chamber, 12. pistons, 13. piston rods, 14. cylinder sleeves, 15. balance fluid cylinder imports, 15.1 balance fluid cylinder pressure chambers, 16. cylinder sleeve pressures
Lid, 17. lower contacts.
Embodiment
Detailed description and technology contents in relation to the utility model, coordinate brief description of the drawings as follows, but attached drawing is only to refer to
With purposes of discussion, not it is used for being any limitation as the utility model.
As shown in attached drawing 1 to Fig. 3, a kind of casing swage lifting type pressure release discharge device, including be connected from top to bottom
Pressure release aerial drainage fluid cylinder, balance fluid cylinder, the pressure release aerial drainage fluid cylinder includes central shaft 8, chain to be slidably connected set 2, be slidably connected axis 3, institute
State the axis that is slidably connected to be assemblied in inside chain to be slidably connected set, the central shaft upper end connects the lower semisection for the axis that is slidably connected, the cunning
Pressure release aerial drainage pressure chamber 7.1 is formed between dynamic 8 outer wall of 2 inner wall of connector sleeve and central shaft, outside the upper semisection of the axis that is slidably connected
Form pressure release aerial drainage chamber 4.1 between wall and chain to be slidably connected set inner wall, the chain to be slidably connected set open up radial direction be used for connect pressure release
The pressure release relief port 4 of aerial drainage chamber, which is opened and is blocked by the lower semisection outer wall for the axis that is slidably connected, in described
Mandrel opens up the central shaft inlet 7 of radial direction, which makes central shaft inner cavity 7.2 be connected with pressure release aerial drainage pressure chamber
It is logical.
The balance fluid cylinder includes cylinder sleeve 14, piston 12, piston rod 13, and the cylinder sleeve upper end is connected by cylinder sleeve connector 9
Chain to be slidably connected set is connect, the piston 12 is arranged in cylinder sleeve, and 13 upper end of piston rod is connected to piston inner wall, in described
8 lower end of mandrel is connected to piston upper end inner wall, and the cylinder sleeve inner cavity above piston is balance fluid cylinder chamber 11.1, under piston
The cylinder sleeve inner cavity of side is balance fluid cylinder pressure chamber, and the piston rod opens up the balance fluid cylinder import 15 of radial direction, the balance fluid cylinder into
Mouth makes piston rod cavity 15.2 be connected with balance fluid cylinder pressure chamber, and the connection that is used for that the cylinder sleeve opens up radial direction balances fluid cylinder chamber
Balance fluid cylinder outlet 11.
Described be slidably connected between axis and chain to be slidably connected set sets chain to be slidably connected set seal 5, it is described be slidably connected axis with
The shaft seal 6 that is slidably connected is set between central shaft.
Cylinder sleeve connector seal 10 is set between the cylinder sleeve connector and central shaft.
The cylinder sleeve lower end installation cylinder sleeve gland 16, gland packing element is set between cylinder sleeve gland and piston rod.
The set upper side connection top connection 1 that is slidably connected, the piston-rod lower end connect lower contact 17.
It is slidably connected between axis upper surface and top connection lower face and forms upper pressure chamber, upper pressure chamber connects pressure release aerial drainage
Chamber.
The axis that is slidably connected forms spline fitted with chain to be slidably connected set.The axis that is slidably connected is formed with chain to be slidably connected set
Six sides coordinate.In short, the axis that is slidably connected does not rotate mutually with chain to be slidably connected set.
Pressure release aerial drainage fluid cylinder is set to 1~6 grade.Balance fluid cylinder is set to 1~6 grade.
Top connection 1 is connected with chain to be slidably connected set 2 with buttress thread, and cylinder sleeve connector 9 is threadedly coupled chain to be slidably connected set 2
With cylinder sleeve 14, the axis 3 that is slidably connected is threadedly coupled central shaft 8, and piston 12 is threadedly coupled central shaft 8 and piston rod 13, under connect
First 17 are connected with working string.
The seal 5 seals pressure release relief port 4；Liquid can be entered flat by the inlet 15 on piston rod 13 in tubing string
Weigh in fluid cylinder pressure chamber 15.1.
Specific embodiment of the present utility model：Top connection 1 is connected by tubing thread with chain to be slidably connected set 2, is slidably connected
Axis 3 forms spline fitted with chain to be slidably connected set 2, and the axis 3 that is slidably connected is threadedly coupled central shaft 8, and cylinder sleeve connector 9 is connected with screw thread
Chain to be slidably connected set 2 and cylinder sleeve 14 are connect, piston 12 is threadedly coupled central shaft 8 and piston rod 13, and piston rod 13 is threadedly coupled down
Connector 17, lower contact 17 connect hydraulic anchor and are connected with working string.
Referring to the drawings 1, Fig. 2 and Fig. 3, the casing swage lifting type pressure release discharge device of the utility model when it is implemented,
Lower contact 17 is connected after hydraulic anchor, shaping tool be connected with working string, by under tubing string in well, if being met during going into the well
Resistance, rotatable working string, since be slidably connected axis 3 and chain to be slidably connected set 2 form spline fitted or six sides cooperation, whole tubing string
Rotated together with underground shaping tool.Connection well head high pressure pumping unit is postponed under tubing string in place, starts high-pressure pump and proceeds by
Casing swage, at this time liquid pass through central shaft inlet 7 and enter pressure chamber 7.1 from the inner cavity 7.2 of central shaft 8；At the same time liquid from
The inner cavity 15.2 of piston rod 13, then enter by the inlet 15 on piston rod in balance fluid cylinder pressure chamber 15.1, play pressure
The effect of balance, and pressure release relief port 4 is in sealing state all the time in pressure duty.
When needing pressure release aerial drainage, connector 1 is above put on together with chain to be slidably connected set 2, cylinder sleeve connector 9, cylinder sleeve 14, cylinder sleeve pressure
Lid 16 moves upwardly together, and lower contact at this time 17 is not move together with piston rod 13, piston 12, central shaft 8, the axis 3 that is slidably connected
, such pressure release relief port 4 is at pressure release bleed state.
The utility model realizes that pressure release is with letting out in casing swage tubing string by raising and decentralizing down-hole casing shaping tubing string
Stream, makes to be connected to the hydraulic anchor pressure release below casing swage lifting type pressure release aerial drainage device, so as to release grappling.The utility model knot
Gou Jian Unit, easy to operate, pressure release aerial drainage is reliable, multiple handling use can be achieved, and operating efficiency is high.
The above is only the preferred embodiment of the present invention, is not used to limit the scope of the claims of the utility model, its
He uses the equivalence changes of the utility model patent spirit, should all belong to the scope of the claims of the utility model.
Claims (9)
1. a kind of casing swage lifting type pressure release discharge device, it is characterised in that including the pressure release aerial drainage being connected from top to bottom
Fluid cylinder, balance fluid cylinder, the pressure release aerial drainage fluid cylinder includes central shaft, chain to be slidably connected set, be slidably connected axis, the axis that is slidably connected
It is assemblied in inside chain to be slidably connected set, the central shaft upper end connects the lower semisection for the axis that is slidably connected, the chain to be slidably connected set inner wall
Pressure release aerial drainage pressure chamber, upper semisection outer wall and the chain to be slidably connected set inner wall of the axis that is slidably connected are formed between central shaft outer wall
Between form pressure release aerial drainage chamber, the chain to be slidably connected set open up radial direction be used for connect the pressure release relief port of pressure release aerial drainage chamber, should
Pressure release relief port is opened and blocked by the lower semisection outer wall for the axis that is slidably connected, the central shaft open up the central shaft of radial direction into
Liquid mouth, the central shaft inlet make central shaft inner cavity be connected with pressure release aerial drainage pressure chamber.
A kind of 2. casing swage lifting type pressure release discharge device according to claim 1, it is characterised in that the equilibrium liquid
Cylinder includes cylinder sleeve, piston, piston rod, and the cylinder sleeve upper end connects chain to be slidably connected set by cylinder sleeve connector, and the piston is set
In cylinder sleeve, the piston rod upper end is connected to piston inner wall, and the central shaft lower end is connected to piston upper end inner wall, position
Cylinder sleeve inner cavity above piston is balance fluid cylinder chamber, and the cylinder sleeve inner cavity below piston is balance fluid cylinder pressure chamber, described
Piston rod opens up the balance fluid cylinder import of radial direction, which makes piston rod cavity be connected with balance fluid cylinder pressure chamber
Logical, the cylinder sleeve opens up the balance fluid cylinder outlet for being used to connect balance fluid cylinder chamber of radial direction.
A kind of 3. casing swage lifting type pressure release discharge device according to claim 1, it is characterised in that the company of slip
Chain to be slidably connected set seal is set between spindle and chain to be slidably connected set, and described be slidably connected between axis and central shaft sets the company of slip
Spindle seal.
4. a kind of casing swage lifting type pressure release discharge device according to claim 2, it is characterised in that the cylinder sleeve connects
Cylinder sleeve connector seal is set between connector and central shaft.
5. a kind of casing swage lifting type pressure release discharge device according to claim 2, it is characterised in that under the cylinder sleeve
End installation cylinder sleeve gland, gland packing element is set between cylinder sleeve gland and piston rod.
A kind of 6. casing swage lifting type pressure release discharge device according to claim 2, it is characterised in that the company of slip
Female connector upper end connects top connection, and the piston-rod lower end connects lower contact.
7. a kind of casing swage lifting type pressure release discharge device according to claim 2, it is characterised in that be slidably connected axis
Upper pressure chamber is formed between upper surface and top connection lower face, upper pressure chamber connects pressure release aerial drainage chamber.
A kind of 8. casing swage lifting type pressure release discharge device according to claim 1 or 2, it is characterised in that the cunning
Dynamic connecting shaft forms spline fitted with chain to be slidably connected set.
A kind of 9. casing swage lifting type pressure release discharge device according to claim 1 or 2, it is characterised in that the cunning
Dynamic connecting shaft forms six sides with chain to be slidably connected set and coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721352927.7U CN207332798U (en) | 2017-10-19 | 2017-10-19 | A kind of casing swage lifting type pressure release discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721352927.7U CN207332798U (en) | 2017-10-19 | 2017-10-19 | A kind of casing swage lifting type pressure release discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207332798U true CN207332798U (en) | 2018-05-08 |
Family
ID=62365938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721352927.7U Expired - Fee Related CN207332798U (en) | 2017-10-19 | 2017-10-19 | A kind of casing swage lifting type pressure release discharge device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207332798U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440655A (en) * | 2018-12-18 | 2019-03-08 | 陈璐 | A kind of active drainage pressure release bridge construction pier |
| CN110578487A (en) * | 2019-08-14 | 2019-12-17 | 中国石油化工股份有限公司 | Two-way hydraulic force increasing device for hydraulic shaping pipe column |
| CN113622855A (en) * | 2021-09-18 | 2021-11-09 | 大庆科力远石油装备制造有限公司 | Hydraulic shaping device for casing |
-
2017
- 2017-10-19 CN CN201721352927.7U patent/CN207332798U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440655A (en) * | 2018-12-18 | 2019-03-08 | 陈璐 | A kind of active drainage pressure release bridge construction pier |
| CN109440655B (en) * | 2018-12-18 | 2020-11-17 | 中铁二十三局集团第一工程有限公司 | Active drainage pressure release bridge construction platform on water |
| CN110578487A (en) * | 2019-08-14 | 2019-12-17 | 中国石油化工股份有限公司 | Two-way hydraulic force increasing device for hydraulic shaping pipe column |
| CN113622855A (en) * | 2021-09-18 | 2021-11-09 | 大庆科力远石油装备制造有限公司 | Hydraulic shaping device for casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20181019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |