CN105089598B - Blasting starting sliding sleeve - Google Patents
Blasting starting sliding sleeve Download PDFInfo
- Publication number
- CN105089598B CN105089598B CN201510505046.3A CN201510505046A CN105089598B CN 105089598 B CN105089598 B CN 105089598B CN 201510505046 A CN201510505046 A CN 201510505046A CN 105089598 B CN105089598 B CN 105089598B
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- China
- Prior art keywords
- rupture disk
- piston
- top connection
- sliding sleeve
- upper joint
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- 238000005422 blasting Methods 0.000 title abstract 2
- 238000004880 explosion Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 28
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention belongs to the technical field of fracturing modification of oil and gas wells, and particularly relates to a blasting starting sliding sleeve designed for multi-layer series fracturing modification of an oil and gas well, which comprises an upper joint and a lower joint which are connected through threads, wherein a plurality of vertical strip-shaped fracturing ports are uniformly distributed on the pipe wall of the upper joint along the circumferential direction, a piston is arranged in the upper joint, and the fracturing ports are blocked by the piston; the pipe wall of the upper part of the upper joint is provided with a rupture disk holder, the rupture disk holder penetrates through the pipe wall of the upper joint, one end, located inside the upper joint, of the rupture disk holder is provided with a rupture disk, the rupture disk is in a disk shape identical to the inner diameter of the upper joint, a separation piece for separating the upper joint is formed in the upper joint, the rupture disk is located on the upper part of the piston, and when the multi-layer multi-section fracturing construction of the sleeve sliding sleeve is realized, the starting sliding sleeve of the first-stage fracturing removes perforation operation from, improves the construction efficiency, saves the construction cost and reduces the construction difficulty and risk.
Description
Technical field
The invention belongs to well fracturing renovation technique field, is designed particularly directed to the more series of strata fracturing reforms of Oil/gas Well
A kind of explosion start sliding sleeve.
Background technology
At present, the domestic limited level carried out, infinite stages sliding sleeve of bushing multilayer multistage pressing crack construction, stratum is being opened, is being carried out
During first order pressure break, pressure break often is carried out using perforating modes, it has the following disadvantages：
1st, long construction period；
2nd, construction cost is high；
3rd, in horizontal well construction, perforation, difficulty of construction are big.
So as to need a kind of startup sliding sleeve of design badly, remove perforation construction from, shorten construction period, save construction cost, reduce
Sliding sleeve of bushing first order pressing crack construction difficulty and risk.
The content of the invention
Present invention aim to address existing sliding sleeve of bushing in first order perforating and fracturing, long construction period be present, apply
The problems such as work cost is high, difficulty of construction is big, a kind of startup sliding sleeve is designed, removes perforation construction from, shortens construction period, save construction
Cost, reduce sliding sleeve of bushing first order pressing crack construction difficulty and risk.
Therefore, the invention provides a kind of explosion to start sliding sleeve, including the top connection and lower contact being connected through a screw thread, on
Multiple perpendicular strip pressure break ports it have been evenly distributed on joint tube wall, piston are housed inside top connection, piston is by pressure break port
Block；Rupture disk clamper is installed, rupture disk clamper passes through the tube wall of top connection, quick-fried on described top connection top tube wall
One end that fragmentation clamper is located inside top connection is equipped with rupture disk, rupture disk be with top connection internal diameter identical disc-shaped,
The partition of a blockage top connection is formed in top connection, described rupture disk is located at upper piston area.
Described piston is located inside lower contact and piston coordinates installation with lower contact gap, is filled on the outside of piston lower portion
Have a jump ring, described lower contact inner wall lower is provided with jump-ring slot, the distance between jump ring and jump-ring slot be more than piston upper end with
The distance between pressure break port bottom.
Described piston is placed in top connection by way of gap coordinates installation, and is fixed piston by shear pin
On top connection inwall.
Described rupture disk clamper has multiple and circumferential uniform on top connection tube wall, rupture disk and all explosions
Piece clamper the inner is all connected with.
Described described rupture disk clamper has two, is arranged symmetrically on top connection tube wall, two rupture disk clampings
Device holds rupture disk.
Between described upper piston area and top connection inwall, between piston lower portion and lower contact inwall and top connection with
O-ring seal is equipped with the joint face of joint.
Beneficial effects of the present invention：This explosion of the present invention starts sliding sleeve, and sliding sleeve of bushing multilayer multistage pressure break can be achieved
During construction, the startup sliding sleeve of first order pressure break, remove perforating job from, improve efficiency of construction, save construction cost, it is tired to reduce construction
Difficult and risk.
The present invention is described in further details below with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation that explosion starts sliding sleeve.
Description of reference numerals：1st, top connection；2nd, rupture disk clamper；3rd, pressure break port；4th, piston；5th, shear pin；6、
Rupture disk；7th, jump ring；8th, lower contact；9th, jump-ring slot.
Embodiment
Embodiment 1：
The present embodiment provides a kind of explosion and starts sliding sleeve, as shown in figure 1, the top connection 1 including being connected through a screw thread and under
Joint 8, multiple perpendicular strip pressure break ports 3 are evenly distributed on the tube wall of top connection 1, the inside of top connection 1 be equipped with piston 4, work
Plug 4 blocks pressure break port 3；Rupture disk clamper 2 is installed on the described top tube wall of top connection 1, rupture disk clamper 2 is worn
The tube wall of top connection 1 is crossed, one end that rupture disk clamper 2 is located inside top connection 1 is equipped with rupture disk 6, and rupture disk 6 is with above connecing
First 1 internal diameter identical disc-shaped, the partition of a blockage top connection 1 is formed in top connection 1, described rupture disk 6 is positioned at work
Fill in 4 tops.
In order to ensure that suitable explosion starts pressure, it is necessary to calculate down-hole pressure before tripping in instrument, preferably
The suitable rupture disk of pressure loads in clamper.Then the device of the present invention is connected to pressure break using top connection 1 and lower contact 8
In tubing string, when explosion starts sliding sleeve start-up operation, by tubing string suppress in sleeve pipe.
When pressure rises to the predetermined disruptive pressure of rupture disk, rupture disk is breakdown, forms pressure channel, liquid-driving
Piston 4 is descending, piston 4 is displaced downwardly to the bottom of lower contact 8, now, is removed because piston 4 is descending, exposes the strip in top connection 1
Type pressure break port 3, it can now carry out pressing crack construction.
Embodiment 2：
On the basis of embodiment 1, in the present embodiment, the lower end of piston 4 is located at the inside of lower contact 8 and piston 4 and lower contact 8
Gap coordinates installation, and the lower outside of piston 4 is equipped with jump ring 7, and the described inner wall lower of lower contact 8 is provided with jump-ring slot 9, jump ring 7
The distance between jump-ring slot 9 is more than the distance between the upper end of piston 4 and the bottom of pressure break port 3.
On the basis of above-mentioned implementation process, when the piston 4 in the present embodiment comes downwards to 8 bottom of lower contact, it is located at
The jump ring 7 of the lower outside of piston 4 is just fallen within the jump-ring slot 9 of the inner wall lower of lower contact 8, is locked in down piston 4 by jump ring 7
In jump-ring slot 9 in joint 8, the up closure pressure break port 3 of piston 4 is prevented, ensures being smoothed out for fracturing process.
Embodiment 3：
On the basis of above-mentioned two embodiment, the present embodiment is further improved and illustrated, in the present embodiment, piston 4 is logical
Crossing gap coordinates the mode of installation to be placed in top connection 1, and piston 4 is fixed on the inwall of top connection 1 by shear pin 5.
When usually, piston 4 is fixed on the inwall of top connection 1 by shear pin 5, starts work when explosion starts sliding sleeve
When making, by tubing string suppress in sleeve pipe, when pressure rises to the predetermined disruptive pressure of rupture disk, rupture disk is breakdown,
Pressure channel is formed, liquid-driving piston 4 is descending, because now piston 4 is fixed on the inwall of top connection 1, so with pressure
Rise, the shearing force being subject on shear pin 5 constantly increases, until shear pin 5 is cut, piston 4 just starts descending, completion
Subsequent process, such a construction ensures the stability of whole device, only when pressure reaches to a certain degree, shear pin
5 ability are cut, and piston 4 could be descending.
Rupture disk clamper 2 has multiple and circumferential uniform on the tube wall of top connection 1, rupture disk 6 and all rupture disk folders
The inner of holder 2 is all connected with.More specifically, in the present embodiment, rupture disk clamper 2 has two, the symmetrical cloth on the tube wall of top connection 1
Put, two rupture disk clampers 2 hold rupture disk 6, and two conducts of rupture disk clampers 2 are used in parallel, to improve explosion
The successful firing rate of piece.
In order that air chamber mechanism has good sealing, sealing mechanism is optimized, design profile error gap
And sealing ring compression ratio, in the present embodiment, between the top of piston 4 and the inwall of top connection 1, the bottom of piston 4 and the inwall of lower contact 8 it
Between and the joint face of top connection 1 and lower contact 8 on be equipped with O-ring seal.
In summary, this explosion of the invention starts sliding sleeve, when sliding sleeve of bushing multilayer multistage pressing crack construction can be achieved, the
The startup sliding sleeve of one-level pressure break, remove perforating job from, improve efficiency of construction, save construction cost, reduce constructional difficulties and risk.
It is exemplified as above be only to the present invention for example, do not form the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (5)
1. a kind of explosion starts sliding sleeve, including the top connection being connected through a screw thread（1）And lower contact（8）, it is characterised in that：On connect
Head（1）Multiple perpendicular strip pressure break ports have been evenly distributed on tube wall（3）, top connection（1）Inside is equipped with piston（4）, piston
（4）By pressure break port（3）Block；Described top connection（1）Rupture disk clamper is installed on the tube wall of top（2）, rupture disk folder
Holder（2）Through top connection（1）Tube wall, rupture disk clamper（2）Positioned at top connection（1）Internal one end is equipped with rupture disk
（6）, rupture disk（6）For with top connection（1）Internal diameter identical disc-shaped, in top connection（1）One blockage top connection of interior formation（1）
Partition, described rupture disk（6）Positioned at piston（4）Top；
Described piston（4）Lower end is located at lower contact（8）Internal and piston（4）With lower contact（8）Gap coordinates installation, piston
（4）Lower outside is equipped with jump ring（7）, described lower contact（8）Inner wall lower is provided with jump-ring slot（9）, jump ring（7）With jump-ring slot
（9）The distance between be more than piston（4）Upper end and pressure break port（3）The distance between bottom.
2. explosion as claimed in claim 1 starts sliding sleeve, it is characterised in that：Described piston（4）Coordinated by gap and installed
Mode be placed in top connection（1）It is interior, and pass through shear pin（5）By piston（4）It is fixed on top connection（1）On inwall.
3. explosion as claimed in claim 1 starts sliding sleeve, it is characterised in that：Described rupture disk clamper（2）Have it is multiple, and
In top connection（1）It is circumferential uniform on tube wall, rupture disk（6）With all rupture disk clampers（2）The inner is all connected with.
4. explosion as claimed in claim 3 starts sliding sleeve, it is characterised in that：Described rupture disk clamper（2）There are two,
Top connection（1）It is arranged symmetrically on tube wall, two rupture disk clampers（2）Hold rupture disk（6）.
5. explosion as claimed in claim 1 starts sliding sleeve, it is characterised in that：Described piston（4）Top and top connection（1）It is interior
Between wall, piston（4）Bottom and lower contact（8）Between inwall and top connection（1）With lower contact（8）Joint face on be equipped with
O-ring seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510505046.3A CN105089598B (en) | 2015-08-18 | 2015-08-18 | Blasting starting sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510505046.3A CN105089598B (en) | 2015-08-18 | 2015-08-18 | Blasting starting sliding sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105089598A CN105089598A (en) | 2015-11-25 |
| CN105089598B true CN105089598B (en) | 2018-04-03 |
Family
ID=54570831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510505046.3A Active CN105089598B (en) | 2015-08-18 | 2015-08-18 | Blasting starting sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105089598B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761545A (en) * | 2017-02-28 | 2017-05-31 | 中国石油天然气股份有限公司 | Oil and gas well cementing pipe column and cementing method |
| CN108104769A (en) * | 2018-02-02 | 2018-06-01 | 西南石油大学 | A kind of explosion chip fracturing control valve |
| CN113323626A (en) * | 2020-02-28 | 2021-08-31 | 中国石油化工股份有限公司 | Differential pressure sliding sleeve and oil-gas well fracturing construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203516896U (en) * | 2013-10-25 | 2014-04-02 | 大连理工安全装备有限公司 | Positioning structure of rupture disc safety device |
| CN104088614A (en) * | 2014-06-30 | 2014-10-08 | 中国石油集团川庆钻探工程有限公司 | Excitation type differential pressure sliding sleeve |
| CN204002700U (en) * | 2014-08-23 | 2014-12-10 | 中国石油集团渤海钻探工程有限公司 | Oil gas well cementing operation pressure reduction sliding sleeve |
| CN204941507U (en) * | 2015-08-18 | 2016-01-06 | 中国石油天然气股份有限公司 | Blasting starting sliding sleeve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9353599B2 (en) * | 2012-11-09 | 2016-05-31 | Watson Well Solutions, Llc | Pressure response fracture port tool for use in hydraulic fracturing applications |
-
2015
- 2015-08-18 CN CN201510505046.3A patent/CN105089598B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203516896U (en) * | 2013-10-25 | 2014-04-02 | 大连理工安全装备有限公司 | Positioning structure of rupture disc safety device |
| CN104088614A (en) * | 2014-06-30 | 2014-10-08 | 中国石油集团川庆钻探工程有限公司 | Excitation type differential pressure sliding sleeve |
| CN204002700U (en) * | 2014-08-23 | 2014-12-10 | 中国石油集团渤海钻探工程有限公司 | Oil gas well cementing operation pressure reduction sliding sleeve |
| CN204941507U (en) * | 2015-08-18 | 2016-01-06 | 中国石油天然气股份有限公司 | Blasting starting sliding sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105089598A (en) | 2015-11-25 |
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