CN205805530U - A kind of layer steam injection regulating separate stratum injection string - Google Patents
A kind of layer steam injection regulating separate stratum injection string Download PDFInfo
- Publication number
- CN205805530U CN205805530U CN201620671520.XU CN201620671520U CN205805530U CN 205805530 U CN205805530 U CN 205805530U CN 201620671520 U CN201620671520 U CN 201620671520U CN 205805530 U CN205805530 U CN 205805530U
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- Prior art keywords
- injection
- envelope
- tube
- outer tube
- injection allocation
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Abstract
The utility model discloses a kind of layer steam injection regulating separate stratum injection string, envelope is inserted including the distributor connected from top to bottom, two-tube slotting envelope, single tube, described two-tube slotting envelope is communicated to upper steam injection layer by upper screen casing, described single tube is inserted envelope and is communicated to lower steam injection layer by lower screen casing, described two-tube slotting envelope outside suit filling packer, described single tube inserts envelope outside suit Inter-zonal packing device.Described distributor upper end connects instlated tubular, is provided with compensator on instlated tubular.This utility model can realize distribution according to need steam injection amount according to oil reservoir and crude oil property, provides strong technical support and guarantee for layer steam injection after oil well delamination sand control.
Description
Technical field
This utility model relates to Stratified Waterflooding, specifically a kind of layer steam injection regulating separate stratum injection string.
Background technology
Loose sand heavy crude reservoir occupies significant proportion at Shengli Oil Field, such as Shang Dian oil field, Jin Jia oil field, Bamianhe oil
Field, Gudong field, Cao Qiao oil field etc., with gradually going deep into of exploration research work, new viscous crude resource also will get more and more.?
In the middle of these oil reservoirs, part well oil reservoir span is big, distribution oil reservoir average many, non-is strong, and the general steam injection of general sand control cannot meet fills
Point transformation stratum, supplement the requirement of energy needed for stratum, therefore use selective sand control technique that stratum is transformed, prevent and treat stratum
Shake out, after sand control, can not effectively supplement stratum for the physical parameter such as in-place permeability, viscosity of crude according to general steam injection
Energy, this type of oil reservoir of high-efficiency mining.
Bottom the Stratified Waterflooding utilization that we used in the past, washing pipe first pours down face oil reservoir, uses stuff to open cunning
Set carries out steam injection to oil reservoir above, and this mode is capable of upper and lower two set oil reservoir distribution according to need steam injection amounts, but cannot solve
The problem simultaneously boiling in a covered pot over a slow fire well, simultaneously open flow so that oil reservoir boils in a covered pot over a slow fire well overlong time below, misses optimal open flow opportunity, and for this, we send out
The while of understanding a kind of, layer steam injection regulating separate stratum injection string solves the oil well layer steam injection simultaneously that reservoir heterogeneity is strong, span is big
Problem.
Utility model content
The purpose of this utility model is to provide a kind of layer steam injection regulating separate stratum injection string, it is possible to according to oil reservoir and crude oil thing
Property realize distribution according to need steam injection amount, provide strong technical support and guarantee for layer steam injection after oil well delamination sand control.
In order to reach above-mentioned purpose, this utility model have employed following technical scheme, a kind of layer steam injection multi-zone flow regulating pipe
Post, inserts envelope including the distributor connected from top to bottom, two-tube slotting envelope, single tube, and described two-tube slotting envelope is communicated to by upper screen casing
Steam injection layer, described single tube is inserted envelope and is communicated to lower steam injection layer, described two-tube slotting envelope outside suit filling packer, institute by lower screen casing
State single tube and insert envelope outside suit Inter-zonal packing device.
Described distributor upper end connects instlated tubular, is provided with compensator on instlated tubular.
Described distributor includes that injection allocation outer tube, injection allocation central canal, middle sleeve, described injection allocation outer tube upper end pass through casing coupling
Being connected to top connection outer wall, described injection allocation central canal upper end is connected to top connection inwall, outer wall tool in the middle part of described injection allocation central canal
Have a threaded annular boss, described injection allocation outer tube to be connected on annular boss, described injection allocation outer tube and injection allocation central canal it
Between annular space form interior annular space, the annular space between described injection allocation outer tube and injection allocation outer tube forms outer annular space, described injection allocation central canal
On offer radially through hole and radially lower through-hole, described radially through hole is positioned at the top of annular boss and connects outer annular space, described
Radially lower through-hole be positioned at annular boss lower section connection annular space, described injection allocation central canal internally installed injection allocation fuse, described in join
The most corresponding radially through hole and the water nozzle of radial direction lower through-hole is offered on note fuse.
Tubing coupling connected pipes pipe nipple is passed through in described injection allocation central canal lower end, installs plug bottom described tubing nipple,
Described tubing nipple constitutes sand setting pocket together with plug.
Described injection allocation outer tube lower end connects union joint, and described injection allocation outer tube lower end is short by supporting box cupling connection sleeve pipe
Joint.
Described two-tube slotting package includes interpolation pipe, inserts envelope outer tube, and described interpolation pipe is internal is internal channel, and described interpolation pipe is with slotting
Being outer tunnel between envelope outer tube, described interpolation pipe upper end connects the union joint of injection allocation outer tube lower end, described interpolation pipe by box cupling
Variable buckle joint connected pipes pipe nipple is passed through in lower end, and described slotting envelope outer tube upper end connects under injection allocation outer tube by inserting envelope outer tube top connection
The casing nipple of end, described slotting envelope outer tube lower end connects upper screen casing.
Described single tube is inserted package and is included single tube slotting envelope outer tube, and described single tube inserts envelope outer tube upper end by single tube top connection connection
Intubating the tubing nipple of lower end, described single tube is inserted envelope lower end and is connected lower screen casing, and plug is installed in lower screen casing lower end.
Compared to prior art, this utility model has the advantages that
This utility model have realize selective sand control while carry out the features such as layer steam injection, can be widely applied to viscous crude oil
In Tibetan.The purpose of this utility model is achieved in that inserts integrated form steam distribution in separate layer in the inside of selective sand control Back-off Pipe String
Tubing string, carries out integrated injection allocation on top of giving up, and by split channel through the different each layers of runner dispensing.
1) distributor is placed in point big casing section in anti-lost portion on hand；2) the two-layer injection allocation up and down in pairs of a distributor collection is used；
One distributor fuse, adjusts two-layer injection allocation amount by injection allocation hole mouthpiece size on fuse；Can trip out together during pulling；3) upper strata
Steam injection passage: vapours enters outside annulus access by distributor top mouthpiece, inserts envelope, gas outlet, top, prevents through top
After sand sieve pipe, inject upper strata；4) lower floor's steam injection passage: vapours enters internal annulus access by distributor bottom mouthpiece, around
Cross sand setting plug, enter bottom little steam injection pipe, after inserting envelope, gas outlet, bottom, sand control screen through bottom, inject lower floor.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of layer steam injection regulating separate stratum injection string；
Fig. 2 is to be layered integrated distributor and distributor fuse overall installation structure chart；
Fig. 3 is injection allocation core structures figure；
Fig. 4 is two-tube slotting seal structure schematic diagram；
Fig. 5 is that single tube inserts seal structure schematic diagram.
In figure: 1-instlated tubular；2-compensator；3-injection allocation fuse；4-distributor；5-sand setting pocket；6-positions box cupling；7-fills
Fill out packer；Envelope is inserted in 8-filling；The two-tube slotting envelope of 9-；10-Inter-zonal packing device；11-single tube inserts envelope；Screen casing under 12-；
401-lifting sub；402-top connection；403-casing coupling；404-injection allocation central canal；405-middle sleeve；406-joins
Note outer tube；407-sealing member；408-tubing coupling；409-tubing nipple；4010-plug；4011-union joint；4012-connects
Head；4013-supports box cupling；4014-casing nipple；
301-injection allocation mandrel body；302-sealing member；303-water nozzle；304-sealing member；305-water nozzle；
901-box cupling；902-interpolation pipe；903-inserts envelope outer tube top connection；904-inserts envelope outer tube；905-variable buckle joint；906-
Tubing nipple；
1101-single tube top connection；1102-single tube inserts envelope outer tube；12-screen casing；1103-plug.
Detailed description of the invention
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provide ginseng
Examine and purposes of discussion, be not used for this utility model is any limitation as.
According to Fig. 1-5, a kind of layer steam injection regulating separate stratum injection string, including the distributor 4 connected from top to bottom, two-tube slotting envelope
9, single tube inserts envelope 11, and described two-tube slotting envelope is communicated to upper steam injection layer by upper screen casing, and described single tube inserts envelope by lower screen casing 12 even
Passing to lower steam injection layer, described two-tube slotting envelope outside suit filling packer 7, described single tube inserts envelope outside suit Inter-zonal packing device
10.Described distributor upper end connects instlated tubular 1, is provided with compensator 2 on instlated tubular.
Described distributor includes injection allocation outer tube 406, injection allocation central canal 404, middle sleeve 407, and described injection allocation outer tube upper end leads to
Crossing casing coupling 403 and be connected to top connection 402 outer wall, described injection allocation central canal upper end is connected to top connection inwall, described injection allocation
In the middle part of central canal, outer wall has a threaded annular boss, and described injection allocation outer tube 7 is connected on annular boss, outside described injection allocation
Annular space between pipe and injection allocation central canal forms interior annular space, and the annular space between described injection allocation outer tube and injection allocation outer tube forms outer shroud
Sky, described injection allocation central canal is offered radially through hole and radially lower through-hole, and described radially through hole is positioned at the upper of annular boss
The outer annular space of Fang Liantong, described radial direction lower through-hole is positioned at the lower section connection annular space of annular boss, the internal peace of described injection allocation central canal
Assembling note fuse 3, described injection allocation fuse is offered the water nozzle 303,305 of the most corresponding radially through hole and radially lower through-hole.Institute
State injection allocation central canal lower end and pass through tubing coupling 408 connected pipes pipe nipple 409, plug 4010 is installed bottom described tubing nipple,
Described tubing nipple constitutes sand setting pocket 5 together with plug.Injection allocation mandrel body 301 outer wall arranges sealing member 302,304.
Described injection allocation outer tube lower end connects union joint 11,12, and described injection allocation outer tube lower end is by supporting box cupling 4013 even
Connect casing nipple 4014.Described top connection upper end connects instlated tubular by lifting sub 401.
Described two-tube slotting package includes interpolation pipe 902, inserts envelope outer tube 904, and described interpolation pipe is internal is internal channel, described interpolation
Being outer tunnel between pipe and slotting envelope outer tube, described interpolation pipe upper end connects the union joint of injection allocation outer tube lower end by box cupling, described
Variable buckle joint 905 connected pipes pipe nipple 906 is passed through in interpolation pipe lower end, and described slotting envelope outer tube upper end is by inserting envelope outer tube top connection
903 casing nipples 4014 connecting injection allocation outer tube lower end, described slotting envelope outer tube lower end connects upper screen casing.Described single tube is inserted package and is included
Single tube inserts envelope outer tube 1102, and described single tube inserts envelope outer tube upper end, and to connect the oil pipe of interpolation pipe lower end by single tube top connection 1101 short
Joint 906, described single tube slotting envelope lower end connects lower screen casing 12, and plug 1103 is installed in lower screen casing lower end.
As it is shown in figure 1, integrated distributor, two-tube slotting envelope connection are collectively forming lower floor's steam injection passage, integrated distributor, two-tube
Insert envelope, single tube is inserted envelope and is collectively forming lower floor's steam injection passage, and wherein single tube is inserted and is evenly distributed with steam injection hole on the screen casing of envelope, lower floor's heat
The steam injection hole that steam is directly inserted the screen casing of envelope from single tube via lower floor's steam injection passage is directly injected into lower floor；
As in figure 2 it is shown, the injection allocation central canal of integrated distributor, middle sleeve, outer tube, union joint, tubing nipple are inserted with two-tube
The 1.9in box cupling of envelope, interpolation pipe, top connection, Φ 86 insert envelope outer tube, are collectively forming upper strata steam injection passage, upper strata vapours via
Upper strata steam injection passage is directly inserted envelope outer tube bottom from the Φ 86 of two-tube slotting envelope and is directly injected into upper strata；
As it is shown on figure 3, two groups of water nozzles up and down of distributor fuse, the most setting up and down on injection allocation fuse；Distributor core
Son is arranged in the injection allocation central canal of integrated distributor, and two groups of water nozzles on distributor fuse respectively with integrated steam-matching device
Two steam injection passages are corresponding；
As shown in Figure 4,1.9in box cupling and the top connection of two-tube slotting envelope are short with the sleeve pipe of integrated distributor respectively by screw thread
Joint is connected with tubing nipple；
As it is shown in figure 5, the 2in tubing nipple of the single tube top connection and two-tube slotting envelope of inserting envelope is connected by screw thread.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, its
He uses the equivalence change of patent spirit of the present utility model, all should all belong to the scope of the claims of the present utility model.
Claims (7)
1. a layer steam injection regulating separate stratum injection string, it is characterised in that include the distributor connected from top to bottom, two-tube slotting envelope,
Single tube inserts envelope, and described two-tube slotting envelope is communicated to upper steam injection layer by upper screen casing, and described single tube is inserted envelope and is communicated to down by lower screen casing
Steam injection layer, described two-tube slotting envelope outside suit filling packer, described single tube inserts envelope outside suit Inter-zonal packing device.
A kind of layer steam injection regulating separate stratum injection string the most according to claim 1, it is characterised in that described distributor upper end is even
Connect instlated tubular, instlated tubular is provided with compensator.
A kind of layer steam injection regulating separate stratum injection string the most according to claim 1 and 2, it is characterised in that described distributor bag
Including injection allocation outer tube, injection allocation central canal, middle sleeve, described middle sleeve upper end is connected to top connection outer wall by casing coupling, described
Injection allocation central canal upper end is connected to top connection inwall, and in the middle part of described injection allocation central canal, outer wall has a threaded annular boss,
Described injection allocation outer tube is connected on annular boss, and the annular space between described injection allocation outer tube and injection allocation central canal forms interior annular space, institute
State the annular space between injection allocation outer tube and injection allocation outer tube and form outer annular space, described injection allocation central canal is offered radially through hole and radial direction
Lower through-hole, described radially through hole is positioned at the top of annular boss and connects outer annular space, and described radial direction lower through-hole is positioned at annular boss
Lower section connection in annular space, described injection allocation central canal internally installed injection allocation fuse, described injection allocation fuse is offered respectively corresponding footpath
Upwards through hole and the water nozzle of radial direction lower through-hole.
A kind of layer steam injection regulating separate stratum injection string the most according to claim 3, it is characterised in that under described injection allocation central canal
End, by tubing coupling connected pipes pipe nipple, installs plug, described tubing nipple structure together with plug bottom described tubing nipple
Become sand setting pocket.
A kind of layer steam injection regulating separate stratum injection string the most according to claim 3, it is characterised in that described injection allocation outer tube lower end
Connecting and have union joint, described injection allocation outer tube lower end connects casing nipple by supporting box cupling.
A kind of layer steam injection regulating separate stratum injection string the most according to claim 5, it is characterised in that described two-tube slotting package includes
Interpolation pipe, slotting envelope outer tube, described interpolation pipe is internal is internal channel, is outer tunnel between described interpolation pipe and slotting envelope outer tube, described
Interpolation pipe upper end connects the union joint of injection allocation outer tube lower end by box cupling, and variable buckle joint connected pipes is passed through in described interpolation pipe lower end
Pipe nipple, described slotting envelope outer tube upper end connects the casing nipple of injection allocation outer tube lower end by inserting envelope outer tube top connection, outside described slotting envelope
Pipe lower end connects upper screen casing.
A kind of layer steam injection regulating separate stratum injection string the most according to claim 6, it is characterised in that described single tube is inserted package and included
Single tube inserts envelope outer tube, and described single tube is inserted envelope outer tube upper end and connected the tubing nipple of interpolation pipe lower end by single tube top connection, described
Single tube is inserted envelope lower end and is connected lower screen casing, and plug is installed in lower screen casing lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620671520.XU CN205805530U (en) | 2016-06-30 | 2016-06-30 | A kind of layer steam injection regulating separate stratum injection string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620671520.XU CN205805530U (en) | 2016-06-30 | 2016-06-30 | A kind of layer steam injection regulating separate stratum injection string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205805530U true CN205805530U (en) | 2016-12-14 |
Family
ID=57512066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620671520.XU Expired - Fee Related CN205805530U (en) | 2016-06-30 | 2016-06-30 | A kind of layer steam injection regulating separate stratum injection string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205805530U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025934A (en) * | 2018-08-15 | 2018-12-18 | 中国石油天然气股份有限公司 | Reversible steam injection valve |
| CN111472737A (en) * | 2019-01-24 | 2020-07-31 | 中国石油化工股份有限公司 | Layered steam injection pipe column and method for layered filling sand control well |
| CN117569781A (en) * | 2024-01-16 | 2024-02-20 | 西安洛科电子科技股份有限公司 | One-sealing double-matching intelligent water injection instrument |
-
2016
- 2016-06-30 CN CN201620671520.XU patent/CN205805530U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025934A (en) * | 2018-08-15 | 2018-12-18 | 中国石油天然气股份有限公司 | Reversible steam injection valve |
| CN111472737A (en) * | 2019-01-24 | 2020-07-31 | 中国石油化工股份有限公司 | Layered steam injection pipe column and method for layered filling sand control well |
| CN117569781A (en) * | 2024-01-16 | 2024-02-20 | 西安洛科电子科技股份有限公司 | One-sealing double-matching intelligent water injection instrument |
| CN117569781B (en) * | 2024-01-16 | 2024-04-12 | 西安洛科电子科技股份有限公司 | One-sealing double-matching intelligent water injection instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 Termination date: 20170630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |