CN1423029A - Oil field waterflooding and section-adjusting production-increasing process - Google Patents
Oil field waterflooding and section-adjusting production-increasing process Download PDFInfo
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- CN1423029A CN1423029A CN 01135233 CN01135233A CN1423029A CN 1423029 A CN1423029 A CN 1423029A CN 01135233 CN01135233 CN 01135233 CN 01135233 A CN01135233 A CN 01135233A CN 1423029 A CN1423029 A CN 1423029A
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- oil field
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- increasing process
- technology
- adjusting production
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Abstract
The invention discloses technology in oil field affusion production increasing technology. The scheme is: after that normal craft seals high permeating layer, it uses acid pours the middle and lower peamting layer, or injects in polehier which can enhance the absorbing efficiency of low permeating layer or chemistry agent which can improve stratum structure.
Description
One, technical field: the invention discloses a kind of oil field waterflooding and section-adjusting production-increasing process that is used for.
Two, background technology: existing profile control technique is the method for injecting chemical agent or take machine plugging in water injection well, reduce the water absorption of high water accepting layer, thereby raising water injection pressure, reach the water absorption of less permeable layer in the raising, improve profile-log of water injection, improve the sweep efficiency that injects water volume, improve the water drive situation.This technology has problems after construction, and the one, the water injection pressure height, consumed energy is big; The 2nd, because the water filling difficulty often appears in the pressure height, the phenomenon that water injection rate reduces.
Three, summary of the invention: purpose of the present invention is exactly the above-mentioned technical problem that exists at prior art, and a kind of water-injection efficiency height is provided, and improves the oil field waterflooding and section-adjusting production-increasing process of crude output.
Technical scheme of the present invention is: behind conventional profile control technology shutoff high permeability zone, carry out in the acidifying augmented injection again, the combination process of less permeable layer.Perhaps behind conventional profile control technology shutoff high permeability zone, take to inject the technology of raising less permeable layer water-taking efficiency material again.This material adopts bubble Lei Xier and can improve the chemical agent (such as expansion-resisting agent) of earth formation.
Technical matters of the present invention can be adjusted the intake profile on water filling stratum more fully, and less permeable layer sweep efficiency and permeability in the enhancing have increased the water injection rate of middle less permeable layer and augmented injection, energy-saving effect, and oil well is produced tangible effect of increasing production.
Four, description of drawings: do not have
Five, the specific embodiment:
Embodiment 1: at first carry out the water plugging and profile controlling technology of the swollen property of body blocking agent according to the concrete condition on stratum, after profile control was finished, the centering less permeable layer taked hydrochloric acid solution or solid hydrochloric acid to carry out the acidification to dispel block augmented injection process, and well-flushing begins water filling.
Embodiment 2: carrying out after the swollen property of body blocking agent carries out profile control technology, inject the bubble Lei Xier material that improves less permeable layer near wellbore zone structure subsequently, bubble Lei Xier makes the near wellbore zone form certain hydrophobicity, and the permeability of less permeable layer near wellbore zone in the recovery improves flood effectiveness.
Embodiment 3: after adopting the inorganic and swollen property of body blocking agent shutoff high permeability zone band, to middle less permeable layer injection improvement SIN activating agent polymer of near wellbore zone, stratum, SIN activating agent polymer can the recovered part permeability, and then carry out displacement technology, the displacement process using produces the technology of reservoir sweep of gas foam automatically.The modified liquid centering less permeable layer that technology of reservoir sweep is taked produces pressure and thermal pulse, the pressure of less permeable layer in the raising, and clean well, the nitrogen foam of generation has certain washing oil displacement of reservoir oil effect, fully develop the potentiality of middle less permeable layer, increased the oil production of oil well.
Claims (3)
1, a kind of oil field waterflooding and section-adjusting production-increasing process comprises that profile control technology and water injection technology form, and it is characterized in that: behind conventional profile control technology shutoff high permeability zone, carry out in the acidifying augmented injection again, the combination process of less permeable layer.
2, oil field waterflooding and section-adjusting production-increasing process according to claim 1 is characterized in that: behind conventional profile control technology shutoff high permeability zone, take to inject the technology of raising less permeable layer water-taking efficiency material again.
3, oil field waterflooding and section-adjusting production-increasing process according to claim 2 is characterized in that: described material is bubble Lei Xier and expansion-resisting agent composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01135233 CN1423029A (en) | 2001-12-07 | 2001-12-07 | Oil field waterflooding and section-adjusting production-increasing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01135233 CN1423029A (en) | 2001-12-07 | 2001-12-07 | Oil field waterflooding and section-adjusting production-increasing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1423029A true CN1423029A (en) | 2003-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01135233 Pending CN1423029A (en) | 2001-12-07 | 2001-12-07 | Oil field waterflooding and section-adjusting production-increasing process |
Country Status (1)
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| CN (1) | CN1423029A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410486A (en) * | 2013-08-06 | 2013-11-27 | 西安石油大学 | Three-in-one composite profile control and displacement process used for oilfield deep profile control |
| CN101691838B (en) * | 2009-10-14 | 2014-02-26 | 西安中孚凯宏石油科技有限责任公司 | Ultralow permeability oil filed water injection well multicomponent chemical microemulsion pressure reduction and injection gain method |
| CN104213885A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Acidification profile control integrated method |
| CN105298436A (en) * | 2014-06-05 | 2016-02-03 | 天津立坤石油技术服务有限公司 | Modified oilfield acid regulation integrated technique |
| CN110330958A (en) * | 2019-06-14 | 2019-10-15 | 中国石油天然气股份有限公司 | Method for improving water absorption profile by profile control and acidification combination |
| CN111622723A (en) * | 2020-05-18 | 2020-09-04 | 中国石油天然气股份有限公司 | Treatment method for improving water absorption performance of water injection well profile |
| CN112392446A (en) * | 2020-12-01 | 2021-02-23 | 中国科学院广州能源研究所 | Method for enhancing reservoir stability in hydrate exploitation process |
-
2001
- 2001-12-07 CN CN 01135233 patent/CN1423029A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691838B (en) * | 2009-10-14 | 2014-02-26 | 西安中孚凯宏石油科技有限责任公司 | Ultralow permeability oil filed water injection well multicomponent chemical microemulsion pressure reduction and injection gain method |
| CN104213885A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Acidification profile control integrated method |
| CN103410486A (en) * | 2013-08-06 | 2013-11-27 | 西安石油大学 | Three-in-one composite profile control and displacement process used for oilfield deep profile control |
| CN103410486B (en) * | 2013-08-06 | 2015-10-28 | 西安石油大学 | A kind of three-in-one compound displacement technique for oil field deep transfer drive |
| CN105298436A (en) * | 2014-06-05 | 2016-02-03 | 天津立坤石油技术服务有限公司 | Modified oilfield acid regulation integrated technique |
| CN110330958A (en) * | 2019-06-14 | 2019-10-15 | 中国石油天然气股份有限公司 | Method for improving water absorption profile by profile control and acidification combination |
| CN110330958B (en) * | 2019-06-14 | 2022-03-01 | 中国石油天然气股份有限公司 | Method for improving water absorption profile by profile control and acidification combination |
| CN111622723A (en) * | 2020-05-18 | 2020-09-04 | 中国石油天然气股份有限公司 | Treatment method for improving water absorption performance of water injection well profile |
| CN111622723B (en) * | 2020-05-18 | 2022-07-05 | 中国石油天然气股份有限公司 | Treatment method for improving water absorption performance of water injection well profile |
| CN112392446A (en) * | 2020-12-01 | 2021-02-23 | 中国科学院广州能源研究所 | Method for enhancing reservoir stability in hydrate exploitation process |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |