CN207583343U - The safe blowout hookup of oil field well oil pipe Operating Pressure - Google Patents
The safe blowout hookup of oil field well oil pipe Operating Pressure Download PDFInfo
- Publication number
- CN207583343U CN207583343U CN201721734930.5U CN201721734930U CN207583343U CN 207583343 U CN207583343 U CN 207583343U CN 201721734930 U CN201721734930 U CN 201721734930U CN 207583343 U CN207583343 U CN 207583343U
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- sliding sleeve
- packer
- sleeve switch
- operating pressure
- 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
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The safe blowout hookup of oil field well oil pipe Operating Pressure of the utility model belongs to oil field well pressing crack construction and high-pressure water injection well Operating Pressure constructing device, it is to be made of oil pipe, casing, sliding sleeve switch and tubing plug, oil pipe is placed in casing, the lower part tubing string piping of oil pipe is packer and sliding sleeve switch from bottom to top, fluid introduction hole is equipped on the tubing wall of packer lower part, fluid leadout hole, tubing plug and tube inner wall phase tight fit above sliding sleeve switch are equipped on sliding sleeve switch.The present apparatus is reasonable in design, it can not miss in a high voltage state, ensure that pressing crack construction is normally carried out, and smoothly shut oil pipe channel after pressing, open simultaneously the interior channel with casing annulus of packer cylinder, lower part tubing pressure is discharged through casing annulus to well head, it into reclaimer, avoids pushing up on oil pipe, has prevented the generation of gas blowout accident and the event that flies to run affairs, it reduces environmental pollution, improves work efficiency.
Description
Technical field
The utility model belongs to oil field well pressing crack construction and high-pressure water injection well Operating Pressure constructing device, more particularly to
To a kind of safe blowout hookup of oil field well oil pipe Operating Pressure.
Background technology
In oil field well pressing crack construction, 30~60 megapascal (MPa)s are up to from the pressure on ground injection stratum, are risen after pressure
It during pipe, is returned due to stratum and spits pressure, oil pipe discharge rate is huge and uncontrollable, and serious pollution environment simultaneously causes greatly
Security risk.Existing solution is to block oil pipe using oil line stopper, but since bigger, envelope of spitting pressure is returned on stratum
It cannot be discharged every the pressure in device packing element, cause packing element spreading, easily cause taking out type blowout or tubing string because of shaft bottom
The higher voluntarily ejection of pressure, which is formed, flies the peace serious accident such as pipe.
Invention content
The purpose of this utility model is exactly to improve original technology, provides a kind of oil field well oil pipe Operating Pressure peace
Full blowout hookup.
The safe blowout hookup of oil field well oil pipe Operating Pressure of the utility model, be by oil pipe, casing, sliding sleeve switch and
Tubing plug is formed, and oil pipe is placed in casing, and the lower part tubing string piping of oil pipe is from bottom to top packer and sliding sleeve switch,
The tubing wall of packer lower part is equipped with fluid introduction hole, fluid leadout hole is equipped on sliding sleeve switch, above sliding sleeve switch
Tubing plug and tube inner wall phase tight fit.
As further improvement of the utility model, the housing of sliding sleeve switch and inner sleeve phase tight fit and there is pin to fix,
And fluid leadout hole is put on set on the outer of sliding sleeve switch.
As further improvement of the utility model, tubing plug is determined along oil pipe downlink, promotion sliding sleeve switch break pin
And move down, the pressure on the stratum of packer lower part passes sequentially through fluid introduction hole and enters oil pipe, tubing plug lower loop week
Guide groove and fluid leadout hole and the casing annulus on packer top form channel.
As further improvement of the utility model, packer is connect in the lower part of sliding sleeve switch, its upper and lower ends by pipe
It is connect with oil pipe, the expansion packing element of packer outer wall closes casing annulus.
The safe blowout hookup of oil field well oil pipe Operating Pressure of the utility model, it is reasonable in design, it can be in high pressure shape
It is not missed under state, ensures that pressing crack construction is normally carried out, and smoothly shut oil pipe channel after pressing, opened simultaneously in packer cylinder
With the channel of casing annulus, lower part tubing pressure is discharged through casing annulus to well head, into reclaimer, is avoided on oil pipe
Top has prevented the generation of gas blowout accident and the event that flies to run affairs, has reduced environmental pollution, improve work efficiency.
Description of the drawings
Fig. 1 is the structure diagram of the safe blowout hookup of the utility model oil field well oil pipe Operating Pressure；
Fig. 2 is the safe blowout hookup use state diagram of the utility model oil field well oil pipe Operating Pressure.
Specific embodiment
Below in conjunction with the accompanying drawings to the safe blowout hookup of oil field well oil pipe Operating Pressure of utility model, do furtherly
It is bright.
As shown in Figure 1, the safe blowout hookup of oil field well oil pipe Operating Pressure of the utility model, is by sliding sleeve switch 3
It is formed with tubing plug 4, in oilfield production, oil pipe 1 is placed in casing 2, and the lower part tubing string piping of oil pipe 1 is from bottom to top
Packer 5 and sliding sleeve switch 3, sliding sleeve switch 3 are made of housing and inner sleeve, and the both ends of housing are connect respectively with oil pipe 1.It is insulating
The inner wall of the oil pipe 1 of 5 lower part of device is equipped with fluid introduction hole 6, fluid leadout hole 7 is equipped on the outer set of sliding sleeve switch 3, in cunning
The tubing plug 4 and 1 inner wall phase tight fit of oil pipe of 3 top of set switch.
Sliding sleeve switch 3 is made of housing and inner sleeve and is fitted close and uses special sealing structure, ensures under high pressure not
Leakage, and there is pin 10 to fix between two walls, make tubing plug 4 along 1 downlink of oil pipe using external pressurized, push sliding sleeve switch 3
Inner sleeve break pin fixed 10 and move down, the strata pressure of 5 lower part of packer enters oil pipe 1, again through oil pipe by fluid introduction hole 6
The guide groove 11 and sliding sleeve switch fluid leadout hole 7 in blanking plug 4 lower loop week form logical with the casing annulus on 5 top of packer
Oily overpressure is discharged into casing annulus by road so as to reach, and most flows back to receipts through ground production tree is controllably outer afterwards, as shown in Figure 2.
Packer 5 connects 8 by pipe and is connect with oil pipe 1 in the lower part of sliding sleeve switch 3,5 upper and lower ends of packer, packer 5
The expansion packing element 9 of outer wall closes casing annulus.
Application method：
1st, in fracturing tubing string, sliding sleeve switch is installed in advance to first order packer, is normally carried out pressing crack construction；
When playing pipe after the 2nd, pressing, first tubing plug is beaten liquid with pump truck, turned blanking plug to sliding sleeve and opened by wellhead assembly
Top is closed, slide switch inner sleeve downlink is pushed using hydraulicdriven strength, cuts fixing pin, fall into slide switch inner sleeve
Below fluid leadout hole, through-hole is opened, and realizes casing annulus and unicom in packer, while block oil pipe, lower bands hydraulic fluid stream
It can be flowed out along guide groove from fluid leadout hole, be again introduced into casing.Casing goes out liquid at this time, and oil pipe shuts no overflow.It is sealed in oil pipe
It closes, pressure goes to pressure release success in oil pipe outer tube；
3rd, pipe operation has been carried out, casing is gone out liquid using well head controller imports retracting device.
This High-pressure oil sealing pivoted housing switch is composed of high-pressure slide valve and tubing plug, and slide switch is using unique
Sealing structure guarantees under the high pressure of 60 megapascal (MPa)s, indeformable, does not reveal, and activity is normal.Blanking plug part is using double sliding
Block anchoring structure ensures when being pushed up on bottom pressure, and the double-slider anchoring blanking plug that works together does not move.Hermetic unit is using single
The mode being combined to packing element and barrel type packing element ensures to generate sufficiently large downward power when pump truck is suppressed, while ensure oil pipe
Interior plugging effect.
Claims (4)
1. the safe blowout hookup of oil field well oil pipe Operating Pressure, is by oil pipe（1）, casing（2）And tubing plug（4）Structure
Into, it is characterised in that oil pipe（1）It is placed in casing（2）It is interior, oil pipe（1）Lower part tubing string piping from bottom to top be packer（5）With
Sliding sleeve switch（3）, in packer（5）The oil pipe of lower part（1）Wall is equipped with fluid introduction hole（6）, in sliding sleeve switch（3）It is equipped with
Fluid leadout hole（7）, sliding sleeve switch（3）The tubing plug of top（4）With oil pipe（1）Inner wall phase tight fit.
2. the safe blowout hookup of oil field well oil pipe Operating Pressure as described in claim 1, it is characterised in that sliding sleeve switch（3）
It is to be made of housing and inner sleeve and have pin between two walls（10）It is fixed, and fluid leadout hole（7）Set on sliding sleeve switch（3）It is outer
It puts on.
3. the safe blowout hookup of oil field well oil pipe Operating Pressure as claimed in claim 2, it is characterised in that tubing plug
（4）Along oil pipe（1）Downlink pushes sliding sleeve switch（3）Inner sleeve cut pin（10）And it moves down, packer（5）The stratum of lower part
Pressure passes sequentially through fluid introduction hole（6）Into oil pipe（1）, tubing plug（4）The guide groove in lower loop week（11）It is led with fluid
Portal（7）With packer（5）The casing annulus on top forms channel.
4. the safe blowout hookup of oil field well oil pipe Operating Pressure as claimed in claim 1 or 2, it is characterised in that packer
（5）In sliding sleeve switch（3）Lower part, its upper and lower ends connect by pipe（8）With oil pipe（1）Connection, packer（5）The expansion of outer wall
Packing element（9）Casing annulus is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721734930.5U CN207583343U (en) | 2017-12-13 | 2017-12-13 | The safe blowout hookup of oil field well oil pipe Operating Pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721734930.5U CN207583343U (en) | 2017-12-13 | 2017-12-13 | The safe blowout hookup of oil field well oil pipe Operating Pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583343U true CN207583343U (en) | 2018-07-06 |
Family
ID=62737491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721734930.5U Expired - Fee Related CN207583343U (en) | 2017-12-13 | 2017-12-13 | The safe blowout hookup of oil field well oil pipe Operating Pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207583343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324384A (en) * | 2020-11-30 | 2021-02-05 | 中国石油集团渤海钻探工程有限公司 | Non-well killing operation process method applying pressure control switch valve |
-
2017
- 2017-12-13 CN CN201721734930.5U patent/CN207583343U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324384A (en) * | 2020-11-30 | 2021-02-05 | 中国石油集团渤海钻探工程有限公司 | Non-well killing operation process method applying pressure control switch valve |
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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: 20180706 Termination date: 20211213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |