CN207161064U - A kind of long-acting layered water filler of binary channels with one heart - Google Patents
A kind of long-acting layered water filler of binary channels with one heart Download PDFInfo
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- CN207161064U CN207161064U CN201720852229.7U CN201720852229U CN207161064U CN 207161064 U CN207161064 U CN 207161064U CN 201720852229 U CN201720852229 U CN 201720852229U CN 207161064 U CN207161064 U CN 207161064U
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- flow regulator
- injection well
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Abstract
The utility model provides a kind of long-acting layered water filler of binary channels with one heart, deblocking controller, the first bridge-type self-locking amplificate packer, the first bridge-type that wherein device includes being sequentially connected from top to bottom be anti-to be returned and tells anti-return of injection well downhole flow regulator, the second bridge-type self-locking amplificate packer, the second bridge-type and tell injection well downhole flow regulator, wherein the first bridge-type is anti-to be returned and tells injection well downhole flow regulator and be located at the first water filling layer, and the second bridge-type, which prevents returning, tells injection well downhole flow regulator and be located at the second water filling layer.Anti- return of second bridge-type tells injection well downhole flow regulator bottom connection flushing valve.Packer does not unseal when stopping note, and interlayer pressure difference will not also cause removing seal for packer, is unsealed using anti-flushing well or rotating forward tubing string.The utility model avoids stratum during loose sand oil accumulation stops note and returns and tell the problem of causing sand pipe laying post, to extend the tubing string term of validity, meet long-term injection allocation and later stage inspection to change safety significant.
Description
Technical field
Oil-field flooding layering injection technique is the utility model is related to, especially a kind of long-acting seperated layer water injection dress of binary channels with one heart
Put.
Background technology
Shallow-layer middle and high infiltration well reservoir loose cementation, near wellbore zone forms higher-pressure region in the injecting process, stops easily causing during note
Formation sand production, cause pit shaft and tubing string building up inside reservoir sand, cause water injection well to be shorted, survey tune failure or even trigger overhaul to make
Industry.Such Oil Reservoir Types is layered frequently with inflatable packer zonal injection technology, the technique using amplificate packer, injection well downhole flow regulator
Designed with flushing valve using single current.Amplificate packer stops explaining envelope, and the big well of interlayer pressure, reservoir properties difference is easy when stopping note
High pressure zone is caused to return to tell and alter layer, tubing string is buried.
Utility model content
The purpose of this utility model is to provide a kind of long-acting layered water filler of binary channels with one heart, stops during note packer not
Deblocking, interlayer pressure difference will not also cause removing seal for packer, be unsealed using anti-flushing well or rotating forward tubing string.The utility model is kept away
Exempt from stratum during loose sand oil accumulation stops note to return and tell the problem of causing sand pipe laying post, to extending the tubing string term of validity, meeting to grow
It is significant that safety is changed in phase injection allocation and later stage inspection.
The purpose of this utility model can be achieved by the following technical measures：
Deblocking controller that a kind of binary channels long-acting layered water filler with one heart includes being sequentially connected from top to bottom, first
Bridge-type self-locking amplificate packer, the first bridge-type be anti-to be returned and tells anti-return of injection well downhole flow regulator, the second bridge-type self-locking amplificate packer, the second bridge-type and tell
Injection well downhole flow regulator, wherein anti-return of the first bridge-type tells injection well downhole flow regulator and be located at the first water filling layer, the second bridge-type, which prevents returning, tells injection well downhole flow regulator and is located at the second note
Water layer.
The purpose of this utility model can be also achieved by the following technical measures：
Anti- return of second bridge-type tells injection well downhole flow regulator bottom connection flushing valve.
The deblocking controller includes top connection 101, sealing ring 102, deblocking piston 103, spring 104 and lower contact
105.Top connection 101 is connected through a screw thread with lower contact 105, and sealing ring 102 is placed in deblocking piston 103 end；Unseal piston
103rd, spring 104 is sequentially installed in the annular space between top connection 101 and lower contact 105.
The bridge-type self-locking amplificate packer includes top connection 201, exterior central tube 202, inner central tube 203, deblocking piston
204th, pressure ring 205, stopper 206, bridge-type pipe nipple 207, sealing ring 208, spring 209, gear bowl 210, packing element 211 and lower contact 212.
Top connection 201 is connected through a screw thread with exterior central tube 202；The lower end of exterior central tube 202 is connected through a screw thread with lower contact 213；Bridge
Both ends weld together respectively at inner central tube 203, exterior central tube 202 inside and outside formula pipe nipple 207；Deblocking piston 204 be placed in it is outer in
In annular space between heart pipe 202 and top connection 201；The upper and lower end portion of pressure ring 205 is respectively placed in exterior central tube 202 and stopper
206th, in the annular space that exterior central tube 202 is formed with gear bowl 210, stopper 206 passes through with top connection 201, gear bowl 210 respectively
Threaded connection；Sealing ring 209 is placed in the end of pressure ring 205；Spring 209 is placed in the ring that exterior central tube 202 is formed with keeping off bowl 210
In shape space；Packing element 211 is placed in outside exterior central tube 202, and upper and lower ends pass through screw thread with gear bowl 210, lower contact 211 respectively
Connection.
The bridge-type is anti-to be returned and tells injection well downhole flow regulator and include top connection 301, exterior central tube 302, spring 303, inner central tube 304, go out
Water piston 305, bridge-type pipe nipple 306 and stopper 307.Top connection 301 is connected through a screw thread with exterior central tube 302；Exterior central tube 302
Lower end be connected through a screw thread with stopper 307；Spring 303 is placed in outside exterior central tube 302, and sequentially install out water piston 305,
Stopper 307；Both ends weld together respectively at inner central tube 304, exterior central tube 302 inside and outside bridge-type pipe nipple 306.
The utility model has the advantages that：
1st, controller, packer, injection well downhole flow regulator are unsealed and uses concentric channel structure, internal channel is set and water filling, annular space lead to
Road deblocking packer；
2nd, using enclosed self-locking formula demixing technology, packer does not unseal after stopping note, and stratum high pressure and interlayer interference will not make
Into deblocking, by reversely suppressing deblocking；
3rd, injection well downhole flow regulator and flushing valve are designed using one-way flow, stop formation fluid after note and can not come in and go out pit shaft and to enter tubing string
It is internal.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is deblocking controller architecture sectional view；
Fig. 3 is bridge-type self-locking amplificate packer structure sectional view；
Fig. 4 is Fig. 3 partial enlarged drawings；
Fig. 5 is that anti-return of bridge-type tells injection well downhole flow regulator structure sectional view.
In Fig. 1：Anti- return of deblocking controller 1, bridge-type self-locking amplificate packer 2, bridge-type tells injection well downhole flow regulator 3, flushing valve 4.
In Fig. 2：Top connection 101, sealing ring 102, deblocking piston 103, spring 104, lower contact 105.
In Fig. 3：Top connection 201, exterior central tube 202, inner central tube 203, deblocking piston 204, pressure ring 205, stopper 206,
Bridge-type pipe nipple 207, sealing ring 208, spring 209, gear bowl 210, packing element 211, lower contact 212；
In Fig. 4：Top connection 301, exterior central tube 302, spring 303, inner central tube 304, go out water piston 305, bridge-type pipe nipple
306th, stopper 307.
Embodiment
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides ginseng
Examine and purposes of discussion, be not used for being any limitation as the utility model.
According to Fig. 1 to Fig. 5, the concentric long-acting layered water filler of binary channels, including the solution being sequentially connected from top to bottom are sealed
Anti- return of device 1 processed, the first bridge-type self-locking amplificate packer, the first bridge-type tells injection well downhole flow regulator, the second bridge-type self-locking amplificate packer, second
Anti- return of bridge-type tells injection well downhole flow regulator, wherein anti-return of the first bridge-type tells injection well downhole flow regulator and be located at the first water filling layer, the second bridge-type prevents returning telling injection well downhole flow regulator
Positioned at the second water filling layer.Anti- return of second bridge-type tells injection well downhole flow regulator bottom connection flushing valve.
The deblocking controller includes top connection 101, sealing ring 102, deblocking piston 103, spring 104 and lower contact
105.Top connection 101 is connected through a screw thread with lower contact 105, and sealing ring 102 is placed in deblocking piston 103 end；Unseal piston
103rd, spring 104 is sequentially installed in the annular space between top connection 101 and lower contact 105.
The bridge-type self-locking amplificate packer includes top connection 201, exterior central tube 202, inner central tube 203, deblocking piston
204th, pressure ring 205, stopper 206, bridge-type pipe nipple 207, sealing ring 208, spring 209, gear bowl 210, packing element 211 and lower contact 212.
Top connection 201 is connected through a screw thread with exterior central tube 202；The lower end of exterior central tube 202 is connected through a screw thread with lower contact 213；Bridge
Both ends weld together respectively at inner central tube 203, exterior central tube 202 inside and outside formula pipe nipple 207；Deblocking piston 204 be placed in it is outer in
In annular space between heart pipe 202 and top connection 201；The upper and lower end portion of pressure ring 205 is respectively placed in exterior central tube 202 and stopper
206th, in the annular space that exterior central tube 202 is formed with gear bowl 210, stopper 206 passes through with top connection 201, gear bowl 210 respectively
Threaded connection；Sealing ring 209 is placed in the end of pressure ring 205；Spring 209 is placed in the ring that exterior central tube 202 is formed with keeping off bowl 210
In shape space；Packing element 211 is placed in outside exterior central tube 202, and upper and lower ends pass through screw thread with gear bowl 210, lower contact 211 respectively
Connection.
Bridge-type is anti-to be returned and tells that injection well downhole flow regulator includes top connection 301, exterior central tube 302, spring 303, inner central tube 304, water outlet are lived
Plug 305, bridge-type pipe nipple 306 and stopper 307.Top connection 301 is connected through a screw thread with exterior central tube 302；Under exterior central tube 302
End is connected through a screw thread with stopper 307；Spring 303 is placed in outside exterior central tube 302, and sequentially installs out water piston 305, stopper
307；Both ends weld together respectively at inner central tube 304, exterior central tube 302 inside and outside bridge-type pipe nipple 306.
Set and water filling：Injection water is flow on bridge-type self-locking amplificate packer 2 through oil pipe sets pressure transmission hole, utilizes liquid
Pressure makes packing element bulging complete to set to sleeve pipe；Injection water returns the waterflood path told on injection well downhole flow regulator 3 through bridge-type is anti-, utilizes
Hydraulic pressure overcomes pressing force of the spring to push piston open finally to inject stratum into oil jacket annular space.Self-locking：Stop pressure reduction in tubing string after noting,
The self-locking piston of bridge-type self-locking amplificate packer 2 is closed in self-locking spring and packing element in the presence of hydraulic coupling, makes packing element inner chamber
All the time sealing high-pressure liquid, it is ensured that packing element is under lower pressure in tubing string and sets state.
Deblocking：Suppressed from oil jacket annular space, the fluid diversion hole that pressure fluid is flowed on deblocking controller 1 overcomes installation in it
Holddown spring simultaneously pushes sealing piston open, and injection well downhole flow regulator 3 is told by unsealing anti-return of controller 1, bridge-type self-locking amplificate packer 2 and bridge-type
The local annulus access that is formed of inner central tube and overcoat, the deblocking that pressure is passed through to bridge-type self-locking amplificate packers 2 at different levels passes
Pressure hole is delivered on self-locking piston, is overcome self-locking spring thrust to open self-locking piston and is laid down the high-pressure fluid of packing element inner chamber,
Packing element reclaims automatically, completes deblocking.
Well-flushing：It is counter suppress deblocking packer after, continue reacting cycle well-flushing, flushing fluid through the annular space that tubing string and sleeve pipe are formed to
Lower flowing, the well-flushing passage through flushing valve 4, which enters inside tubing string, returns to ground.
The utility model has stronger adaptability in sand output well, and removing seal for packer is controlled using independent deblocking passage,
It effectively prevent formation sand production when stopping note and cause pipe laying post, power is measured and tuned into weight to extending the tubing string dispensing term of validity, improving
Want meaning.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the scope of the claims of the present utility model, its
He uses the equivalence changes of patent spirit of the present utility model, all should all belong to the scope of the claims of the present utility model.
Claims (5)
1. a kind of long-acting layered water filler of binary channels with one heart, it is characterised in that the solution including being sequentially connected from top to bottom is sealed
Anti- return of device processed, the first bridge-type self-locking amplificate packer, the first bridge-type tells injection well downhole flow regulator, the second bridge-type self-locking amplificate packer, second
Anti- return of bridge-type tells injection well downhole flow regulator, wherein anti-return of the first bridge-type tells injection well downhole flow regulator and be located at the first water filling layer, the second bridge-type prevents returning telling injection well downhole flow regulator
Positioned at the second water filling layer.
A kind of 2. long-acting layered water filler of binary channels with one heart according to claim 1, it is characterised in that second bridge
Anti- return of formula tells injection well downhole flow regulator bottom connection flushing valve.
3. a kind of long-acting layered water filler of binary channels with one heart according to claim 1, it is characterised in that the solution is sealed
Device processed includes top connection, sealing ring, deblocking piston, spring, lower contact, and top connection is connected through a screw thread with lower contact, sealing ring
It is placed in deblocking pistons end；Deblocking piston, spring are sequentially installed in the annular space between top connection and lower contact.
4. a kind of long-acting layered water filler of binary channels with one heart according to claim 1, it is characterised in that the bridge-type is certainly
Lock amplificate packer include top connection, exterior central tube, inner central tube, deblocking piston, pressure ring, stopper, bridge-type pipe nipple, sealing ring,
Spring, gear bowl, packing element and lower contact；Top connection is connected through a screw thread with exterior central tube；Exterior central tube lower end passes through with lower contact
Threaded connection；Both ends weld together respectively at inner central tube, exterior central tube inside and outside bridge-type pipe nipple；Deblocking piston is placed in outer center
In annular space between pipe and top connection；Pressure ring upper end is placed in the annular space that exterior central tube is formed with stopper, internal pressure
Ring bottom is placed in the annular space that exterior central tube is formed with keeping off bowl, and stopper is connected with top connection, gear bowl by screw thread respectively
Connect；Sealing ring is placed in the end of pressure ring；Spring is placed in the annular space that exterior central tube is formed with keeping off bowl；Packing element be placed in it is outer in
Outside heart pipe, and upper and lower ends are connected through a screw thread with gear bowl, lower contact respectively.
5. a kind of long-acting layered water filler of binary channels with one heart according to claim 1, it is characterised in that anti-return of bridge-type is told
Injection well downhole flow regulator includes top connection, exterior central tube, spring, inner central tube, goes out water piston, bridge-type pipe nipple and stopper；Top connection with it is outer in
Heart pipe is connected through a screw thread；The lower end of exterior central tube is connected through a screw thread with stopper；Spring is placed in outside exterior central tube, and sequentially
Water piston, stopper are installed out；Both ends weld together respectively at inner central tube, exterior central tube inside and outside bridge-type pipe nipple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720852229.7U CN207161064U (en) | 2017-07-13 | 2017-07-13 | A kind of long-acting layered water filler of binary channels with one heart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720852229.7U CN207161064U (en) | 2017-07-13 | 2017-07-13 | A kind of long-acting layered water filler of binary channels with one heart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207161064U true CN207161064U (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720852229.7U Active CN207161064U (en) | 2017-07-13 | 2017-07-13 | A kind of long-acting layered water filler of binary channels with one heart |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252834A (en) * | 2017-07-13 | 2019-01-22 | 中国石油化工股份有限公司 | The concentric long-acting layered water filler of binary channels and method |
| CN109681161A (en) * | 2018-04-03 | 2019-04-26 | 中国石油化工股份有限公司 | Multilayer system separate mass and separate pressure water-filling method and water injection string |
| CN110080731A (en) * | 2019-04-30 | 2019-08-02 | 克拉玛依四维石油科技有限公司 | Big pressure difference laminated distributor under well fills the water control set for adjusting to Dual-channel type with one heart |
| CN111997563A (en) * | 2020-08-04 | 2020-11-27 | 中国石油化工股份有限公司 | Pump-sealing integrated water finding and blocking pipe column and moving bottom block thereof |
-
2017
- 2017-07-13 CN CN201720852229.7U patent/CN207161064U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252834A (en) * | 2017-07-13 | 2019-01-22 | 中国石油化工股份有限公司 | The concentric long-acting layered water filler of binary channels and method |
| CN109252834B (en) * | 2017-07-13 | 2024-05-24 | 中国石油化工股份有限公司 | Concentric double-channel long-acting layered water injection device and method |
| CN109681161A (en) * | 2018-04-03 | 2019-04-26 | 中国石油化工股份有限公司 | Multilayer system separate mass and separate pressure water-filling method and water injection string |
| CN110080731A (en) * | 2019-04-30 | 2019-08-02 | 克拉玛依四维石油科技有限公司 | Big pressure difference laminated distributor under well fills the water control set for adjusting to Dual-channel type with one heart |
| CN111997563A (en) * | 2020-08-04 | 2020-11-27 | 中国石油化工股份有限公司 | Pump-sealing integrated water finding and blocking pipe column and moving bottom block thereof |
| CN111997563B (en) * | 2020-08-04 | 2022-06-24 | 中国石油化工股份有限公司 | Pump-sealing integrated water finding and blocking pipe column and moving bottom block thereof |
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