CN2737941Y - Concentric tube separated layer gas injection tube column - Google Patents
Concentric tube separated layer gas injection tube column Download PDFInfo
- Publication number
- CN2737941Y CN2737941Y CN 200420097105 CN200420097105U CN2737941Y CN 2737941 Y CN2737941 Y CN 2737941Y CN 200420097105 CN200420097105 CN 200420097105 CN 200420097105 U CN200420097105 U CN 200420097105U CN 2737941 Y CN2737941 Y CN 2737941Y
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- CN
- China
- Prior art keywords
- steam injection
- pipe
- packer
- steam
- heat insulation
- 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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Abstract
The utility model discloses a concentric tube separated layer gas injection tube column comprising a testing valve, an inner steam injection valve, a steam injection valve, a sleeve pipe valve and a sleeve pipe on the well mouth, and an inner steam an injection pipe, a heat insulation pipe, an upper packer, a lower packer, a steam injection sieve tube and an inner packer in the well. The heat insulation pipe is provided in the sleeve pipe. The upper end of the sleeve pipe is connected with the steam injection valve, and the lower end of the sleeve pipe is connected with the upper packer, the steam injection sieve tube and the lower packer in sequence. The inner steam injection pipe is arranged in the heat insulation pipe. The upper end of the heat insulation pipe is connected with the inner steam injection valve and the well mouth testing valve, and the inner packer is arranged on the lower end of the heat insulation pipe. The utility model adopts concentric tube column and has advantages of realizing stratified steam injection nicely, accurate metering of stratified steam, convenient allocating, metering and operating on ground, no need of heat insulation for the inner tube, and good heat preservation effect of the inner tube. The utility model is applied widely to the heavy crude steam injection art work.
Description
One, technical field
The utility model relates to the oil exploitation steam injection string, relates in particular to a kind of concentric tube layer steam injection tubing string.
Two, background technology
The on-the-spot used steam injection string of oil exploitation at present generally is to annotate vapour at one deck, when annotating vapour simultaneously more than two-layer, also is generally to annotate vapour, can not realize layer steam injection, and some also is to adopt injection allocation device in down-hole to carry out injection allocation at the tubing string of layer steam injection.These tubing strings exist following shortcoming or deficiency: 1, can only individual layer annotate vapour or multilayer generally annotated vapour, and can not layer steam injection; 2, adopt the layer steam injection tubing string of down-hole injection allocation device, its injection allocation pore volume is easily made a spurt to become greatly or by foul and is blocked, and accurately injection allocation makes layer steam injection not reach requirement; 3, the shaft bottom situation changes, and can not in time adjust injection allocation.
Three, summary of the invention
The technical problem that the utility model solves is shortcoming or the deficiency that overcomes or avoid existing in the above-mentioned prior art, and provide a kind of improved, have a concentric tube layer steam injection tubing string that multi-zone flow regulating is accurate, injection allocation is easy to adjust.
Concentric tube layer steam injection tubing string described in the utility model, annotate steam pipe, instlated tubular, upper packer, lower packet, notes vapour screen casing and interior packer in comprising in well head test valve, interior steam injection valve door, steam injection valve door, sleeve valve and sleeve pipe and the well, be lowered to instlated tubular in the described sleeve pipe, its upper end is connected with the steam injection valve door, the bottom connects upper packer in turn, annotates vapour screen casing and lower packet, annotate steam pipe in being lowered in the described instlated tubular, its top is connected with interior steam injection valve door and well head test valve, and interior packer is installed in the bottom.
Wherein, described notes vapour screen casing is installed in top notes gasoline layer corresponding site.Annotate the steam pipe lower end in described and pass interior packer, corresponding with bottom notes gasoline layer.Packer is installed on the interior notes steam pipe in the instlated tubular lower end in described.
The utility model has following advantage compared with prior art:
1, adopt concentric tube column to realize layer steam injection well;
2, layer steam injection accurate measurement;
3, ground is allocated, is measured, easy construction;
4, interior pipe do not need heat insulation, in guarantee that temp effect is good.
Four, description of drawings
Accompanying drawing is the utility model structural representation.
Five, the specific embodiment
Consult accompanying drawing, a kind of concentric tube layer steam injection tubing string comprises interior steam pipe 6, instlated tubular 7, upper packer 8, lower packet 10, notes vapour screen casing 9 and the interior packer 11 annotated in well head test valve 5, interior steam injection valve door 4, steam injection valve door 3, sleeve valve 2 and sleeve pipe 1 and the well.Be lowered to instlated tubular 7 in the sleeve pipe 1, its upper end is connected with steam injection valve door 3, and the bottom connects upper packer 8 in turn, annotates vapour screen casing 9 and lower packet 10, annotates steam pipe 6 in being lowered in the instlated tubular 7, its top is connected with interior steam injection valve door 4 and well head test valve 5, and interior packer 11 is installed in the bottom.
Annotating vapour screen casing 9 installs in top notes gasoline layer corresponding site.Interior packer 11 is passed in interior steam pipe 6 lower ends of annotating, and is corresponding with bottom notes gasoline layer.Lower packet 10 is installed on the interior notes steam pipe 6 in instlated tubular 7 lower ends.
Claims (4)
1. concentric tube layer steam injection tubing string, annotate steam pipe, instlated tubular, upper packer, lower packet, notes vapour screen casing and interior packer in comprising in well head test valve, interior steam injection valve door, steam injection valve door, sleeve valve and sleeve pipe and the well, it is characterized in that being lowered to instlated tubular in the described sleeve pipe, its upper end is connected with the steam injection valve door, the bottom connects upper packer in turn, annotates vapour screen casing and lower packet, annotate steam pipe in being lowered in the described instlated tubular, its top is connected with interior steam injection valve door and well head test valve, and interior packer is installed in the bottom.
2. concentric tube layer steam injection tubing string according to claim 1 is characterized in that described notes vapour screen casing is installed to annotate gasoline layer corresponding site in top.
3. concentric tube layer steam injection tubing string according to claim 1 and 2 is characterized in that annotating the steam pipe lower end in described passes the instlated tubular lower end, and to annotate the gasoline layer corresponding with the bottom.
4. concentric tube layer steam injection tubing string according to claim 1 and 2 is characterized in that described lower packet installs on the interior notes steam pipe in the instlated tubular lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420097105 CN2737941Y (en) | 2004-10-14 | 2004-10-14 | Concentric tube separated layer gas injection tube column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420097105 CN2737941Y (en) | 2004-10-14 | 2004-10-14 | Concentric tube separated layer gas injection tube column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2737941Y true CN2737941Y (en) | 2005-11-02 |
Family
ID=35347851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420097105 Expired - Fee Related CN2737941Y (en) | 2004-10-14 | 2004-10-14 | Concentric tube separated layer gas injection tube column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2737941Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343480C (en) * | 2005-12-24 | 2007-10-17 | 中国石化胜利油田有限公司采油工艺研究院 | Separate layer gas injection tube pile |
| CN101074602B (en) * | 2007-07-18 | 2010-10-13 | 中国石油化工股份有限公司胜利油田分公司孤东采油厂 | Stratified injection tubular pile |
| CN102102506A (en) * | 2010-12-22 | 2011-06-22 | 中国石油天然气集团公司 | Fire flooding oil extraction layered steam injection method and separate injection tubular column adopted by same |
| CN102242614A (en) * | 2011-07-19 | 2011-11-16 | 中国石油天然股份有限公司 | Coaxial double-layer gas injection well mouth device |
| CN102312667A (en) * | 2011-09-23 | 2012-01-11 | 中国石油天然气股份有限公司 | Concentric Tube Layered Steam Injection System and Method |
| CN102359355A (en) * | 2011-09-23 | 2012-02-22 | 中国石油天然气股份有限公司 | Concentric tube double-tube steam injection wellhead device |
| CN103758496A (en) * | 2014-01-02 | 2014-04-30 | 中国石油天然气股份有限公司 | Nitrogen flooding concentric layered steam injection pipe column and method |
| CN108397170A (en) * | 2018-01-22 | 2018-08-14 | 中国石油天然气股份有限公司 | Layered oxygen injection and reduction air pipe column, system and method |
| CN110094191A (en) * | 2018-01-29 | 2019-08-06 | 中国石油化工股份有限公司 | A kind of thermal production well fragment-force injection-production column jacket and method |
| CN111997574A (en) * | 2020-09-21 | 2020-11-27 | 重庆市能源投资集团科技有限责任公司 | Layered metering extraction method and extraction device for multi-coal-seam gas extraction |
-
2004
- 2004-10-14 CN CN 200420097105 patent/CN2737941Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343480C (en) * | 2005-12-24 | 2007-10-17 | 中国石化胜利油田有限公司采油工艺研究院 | Separate layer gas injection tube pile |
| CN101074602B (en) * | 2007-07-18 | 2010-10-13 | 中国石油化工股份有限公司胜利油田分公司孤东采油厂 | Stratified injection tubular pile |
| CN102102506A (en) * | 2010-12-22 | 2011-06-22 | 中国石油天然气集团公司 | Fire flooding oil extraction layered steam injection method and separate injection tubular column adopted by same |
| CN102242614A (en) * | 2011-07-19 | 2011-11-16 | 中国石油天然股份有限公司 | Coaxial double-layer gas injection well mouth device |
| CN102312667A (en) * | 2011-09-23 | 2012-01-11 | 中国石油天然气股份有限公司 | Concentric Tube Layered Steam Injection System and Method |
| CN102359355A (en) * | 2011-09-23 | 2012-02-22 | 中国石油天然气股份有限公司 | Concentric tube double-tube steam injection wellhead device |
| CN103758496A (en) * | 2014-01-02 | 2014-04-30 | 中国石油天然气股份有限公司 | Nitrogen flooding concentric layered steam injection pipe column and method |
| CN103758496B (en) * | 2014-01-02 | 2016-04-06 | 中国石油天然气股份有限公司 | Nitrogen flooding concentric layered steam injection pipe column and method |
| CN108397170A (en) * | 2018-01-22 | 2018-08-14 | 中国石油天然气股份有限公司 | Layered oxygen injection and reduction air pipe column, system and method |
| CN108397170B (en) * | 2018-01-22 | 2020-10-09 | 中国石油天然气股份有限公司 | Layered oxygen injection and reduction air pipe column, system and method |
| CN110094191A (en) * | 2018-01-29 | 2019-08-06 | 中国石油化工股份有限公司 | A kind of thermal production well fragment-force injection-production column jacket and method |
| CN111997574A (en) * | 2020-09-21 | 2020-11-27 | 重庆市能源投资集团科技有限责任公司 | Layered metering extraction method and extraction device for multi-coal-seam gas extraction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |