CN201144680Y - Heavy crude layer separation and selective gas injection integrated pipe column - Google Patents
Heavy crude layer separation and selective gas injection integrated pipe column Download PDFInfo
- Publication number
- CN201144680Y CN201144680Y CNU2007201734703U CN200720173470U CN201144680Y CN 201144680 Y CN201144680 Y CN 201144680Y CN U2007201734703 U CNU2007201734703 U CN U2007201734703U CN 200720173470 U CN200720173470 U CN 200720173470U CN 201144680 Y CN201144680 Y CN 201144680Y
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- ball
- steam
- injection
- sealer
- injector
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Abstract
The utility model discloses an integrated pipe string for heavy oil zonation and selective injection, comprising an oil pipe (1), an upper sealer (2), an expansion piece (3), an upper ball injector (4), a separative injection valve (5), an upper ball collector (6), a lower sealer, a lower ball injector (8), a steam injection sieve tube (9), and a lower ball collector (10). The upper sealer, the expansion piece, the upper ball injector, the separative injection valve, the upper ball collector, the lower sealer, the lower ball injector, the steam injection sieve tube, and the lower ball collector are connected together at the lower part of the oil pipe one by one. By using the utility model, the operations of zonation quantitative steam injection and ball injection selective steam injection to the oil well can be finished at one time during heavy oil thermal recovery. The utility model not only solves the influence of steam overlap phenomena in steam huff and puff, but also improves the producing degree of medium and low infiltration layers of the oil well, greatly improving the effective utilization rate of injected steam and thermal recovery effect. The pipe string has a simple structure, is convenient to be used, and is suitable to be used on site.
Description
Technical field:
The utility model relates to a kind of down-hole technology of using, particularly viscous crude branch in heavy crude petroleum is produced, integrated pipe column is annotated in choosing.
Background technology:
At present, the thickened oil recovery common practice is both at home and abroad: heavy crude heat extraction is generally annotated vapour; The heavy crude heat extraction layered quantitative gas filling; For general notes vapour, with the inferior increase of steamer of showwing loving care for, vapour suction amount is more and more unbalanced between the high and low permeable formation between oil reservoir, and the high permeability zone steam absorbing amount is big, the development degree height, and the less permeable layer steam absorbing amount is few or do not inhale vapour, and development degree is low.Interlayer contradiction is outstanding, has had a strong impact on the effective rate of utilization and the thermal recovery effect of steam in jection.Annotate for layered quantitative, on the one hand with the increase of the steamer time of showwing loving care for, the dispensing effect also worse and worse, on the other hand in separated two big notes vapour unit, in, less permeable layer still do not employed.
Summary of the invention:
The purpose of this utility model is the defective that overcomes prior art, provide a kind of viscous crude branch, choosing to annotate integrated pipe column, in layer steam injection, separated two big notes vapour unit are carried out the pitching selectivity again and annotate vapour, utilize selective plugging ball shutoff high permeability zone borehole in pit shaft, force most of steam annotate in, less permeable layer, thereby improve producing degree of reservoir and thermal recovery effect, the dispensing effect improved, in, less permeable layer employed.
The purpose of this utility model is to realize like this, it by oil pipe, go up sealer, expansion bend, go up ball injector, the dispensing valve, go up ball collecting device, lower seal device, down ball injector, annotate the vapour screen casing, ball collecting device is formed down, be connected to successively below the oil pipe sealer, expansion bend, on ball injector, dispensing valve, on ball collecting device, lower seal device, down ball injector, annotate vapour screen casing, following ball collecting device.
During work, the upper-lower seal device is used for whole oil reservoir is divided into two notes vapour unit up and down; The dispensing valve can be realized annotating vapour unit layered quantitative gas filling to separated two; Ball injector is used for bringing special selective plugging ball into two notes vapour unit up and down with process pipe string up and down, realizes pitching selectivity notes vapour; Ball collecting device is pulled selective plugging ball receipts outside the well out after annotating the vapour end up and down, and expansion bend is used for the stroke balance with process pipe string.Ball collecting device up and down, after annotating vapour and finishing, because the reduction of bottom pressure, under the effect of strata pressure, the selective plugging ball just peels off under the borehole of shutoff, under playing the thermal recovery tubing string during pump, by ball collecting device the selective plugging ball is received and to be pulled out outside the well.Promptly realized pitching selectivity notes vapour, the selective plugging ball can have been received again and pull out outside the well, avoided stifled ball to be detained in the well oil well is damaged.
The utility model since adopt be connected to successively below the oil pipe sealer, expansion bend, on ball injector, dispensing valve, on ball injector under the ball collecting device, lower seal device, annotate vapour screen casing, ball collecting device down.Can in heavy crude heat extraction, disposable finishing annotate vapour to the layered quantitative gas filling and the pitching selectivity of oil well.Promptly solved steam overlap phenomenon influence in the steam soak improved again oil well in, the development degree of less permeable layer, significantly improved effective rate of utilization and the thermal recovery effect of steam in jection.It is simple in structure, and is easy to use, is well suited for The field.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model by oil pipe 1, go up sealer 2, expansion bend 3, go up ball injector 4, dispensing valve 5, go up ball collecting device 6, lower seal device 7, down ball injector 8, annotate vapour screen casing 9, ball collecting device 10 is formed down, be connected to successively below the oil pipe 1 sealer 2, expansion bend 3, on ball injector 4, dispensing valve 5, on ball collecting device 6, lower seal device 7, down ball injector 8, annotate vapour screen casing 9, following ball collecting device 10.The upper-lower seal device is used for whole oil reservoir is divided into two notes vapour unit up and down; The dispensing valve can be realized annotating vapour unit layered quantitative gas filling to separated two; Ball injector is used for bringing special selective plugging ball into two notes vapour unit up and down with process pipe string up and down, realizes pitching selectivity notes vapour; Ball collecting device is pulled selective plugging ball receipts outside the well out after annotating the vapour end up and down, and expansion bend is used for the stroke balance with process pipe string.Ball collecting device up and down, after annotating vapour and finishing, because the reduction of bottom pressure, under the effect of strata pressure, the selective plugging ball just peels off under the borehole of shutoff, under playing the thermal recovery tubing string during pump, by ball collecting device the selective plugging ball is received and to be pulled out outside the well.Promptly realized pitching selectivity notes vapour, the selective plugging ball can have been received again and pull out outside the well, avoided stifled ball to be detained in the well oil well is damaged.
Claims (1)
1, integrated pipe column is annotated in viscous crude branch, choosing, it by oil pipe (1), go up sealer (2), expansion bend (3), go up ball injector (4), dispensing valve (5), go up ball collecting device (6), lower seal device (7), down ball injector (8), annotate vapour screen casing (9), ball collecting device (10) is formed down, it is characterized in that: be connected to sealer (2), expansion bend (3) successively in oil pipe (1) below, go up ball injector (4), dispensing valve (5), go up ball collecting device (6), lower seal device (7), ball injector (8), notes vapour screen casing (9), following ball collecting device (10) down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201734703U CN201144680Y (en) | 2007-09-29 | 2007-09-29 | Heavy crude layer separation and selective gas injection integrated pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201734703U CN201144680Y (en) | 2007-09-29 | 2007-09-29 | Heavy crude layer separation and selective gas injection integrated pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144680Y true CN201144680Y (en) | 2008-11-05 |
Family
ID=40081556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201734703U Expired - Lifetime CN201144680Y (en) | 2007-09-29 | 2007-09-29 | Heavy crude layer separation and selective gas injection integrated pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144680Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102562004A (en) * | 2012-01-19 | 2012-07-11 | 中国石油天然气股份有限公司 | One-trip tubing string separate-injection coproduction method for thick oil thermal recovery well |
| CN103075134A (en) * | 2013-01-18 | 2013-05-01 | 中国石油天然气股份有限公司 | Automatic matching injection tubular column for injecting air and steam |
| CN104314542A (en) * | 2014-09-24 | 2015-01-28 | 中国石油天然气股份有限公司 | Air injection-assisted steam oil recovery tube pillar and oil recovery method |
| CN108547603A (en) * | 2018-02-28 | 2018-09-18 | 中国石油天然气股份有限公司 | A kind of water flood recovery integrated pipe column and water injection oil extraction method |
| CN110374547A (en) * | 2019-06-12 | 2019-10-25 | 中国石油化工股份有限公司 | A kind of ball injector and the Thickened oil injection-production integrated pipe column using the ball injector |
| CN111827917A (en) * | 2019-04-22 | 2020-10-27 | 中国石油天然气股份有限公司 | Fireflooding gas injection well ball injection profile control process |
-
2007
- 2007-09-29 CN CNU2007201734703U patent/CN201144680Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102562004A (en) * | 2012-01-19 | 2012-07-11 | 中国石油天然气股份有限公司 | One-trip tubing string separate-injection coproduction method for thick oil thermal recovery well |
| CN102562004B (en) * | 2012-01-19 | 2014-06-04 | 中国石油天然气股份有限公司 | One-trip tubing string separate-injection coproduction method for thick oil thermal recovery well |
| CN103075134A (en) * | 2013-01-18 | 2013-05-01 | 中国石油天然气股份有限公司 | Automatic matching injection tubular column for injecting air and steam |
| CN103075134B (en) * | 2013-01-18 | 2015-11-18 | 中国石油天然气股份有限公司 | Air injection and steam match note tubing string automatically |
| CN104314542A (en) * | 2014-09-24 | 2015-01-28 | 中国石油天然气股份有限公司 | Air injection-assisted steam oil recovery tube pillar and oil recovery method |
| CN108547603A (en) * | 2018-02-28 | 2018-09-18 | 中国石油天然气股份有限公司 | A kind of water flood recovery integrated pipe column and water injection oil extraction method |
| CN111827917A (en) * | 2019-04-22 | 2020-10-27 | 中国石油天然气股份有限公司 | Fireflooding gas injection well ball injection profile control process |
| CN110374547A (en) * | 2019-06-12 | 2019-10-25 | 中国石油化工股份有限公司 | A kind of ball injector and the Thickened oil injection-production integrated pipe column using the ball injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081105 |