发明名称 |
METHOD OF INCREASING OIL YIELD IN INHOMOGENEOUS, HIGHLY-FLOODED, POROUS AND FRACTURED-POROUS, LOW- AND HIGH-TEMPERATURE PRODUCTIVE STRATUM |
摘要 |
FIELD: oil-and-gas industry.SUBSTANCE: proposed process comprises isolation of formation and bottom waters or annulus circulation. At insulation, water isolation polymer of loam-quartz system is injected into formation water saturated part while formation bottom zone and borehole are cemented by fast-setting plugging mix. In compliance with this invention, water isolation polymer of loam-quartz system is injected via tubing perforation below water-oil contact to create at extra shield in at least 20 mm from borehole. Said fast-setting plugging mix is injection via turning perforations above water-oil contact to make extra shield in at least 5 m from borehole. Productive bed oil-saturated interval is exposed by perforations in depth extending beyond contaminated zone boundaries. Said productive bed is re-exposed by hydrofrac or physical-chemical, wave, mechanical or acoustic effects.EFFECT: higher reliability of formation water isolation at minimum capital costs.4 dwg, 1 tbl |
申请公布号 |
RU2528805(C1) |
申请公布日期 |
2014.09.20 |
申请号 |
RU20130109861 |
申请日期 |
2013.03.05 |
申请人 |
APASOV GAJDAR TIMERGALEEVICH |
发明人 |
APASOV GAJDAR TIMERGALEEVICH;APASOV TIMERGALEJ KABIROVICH;MUKHAMETSHIN VADIM GABDULOVICH;SAKHIPOV DAMIR MIDKHATOVICH;APASOV RENAT TIMERGALEEVICH |
分类号 |
E21B43/22 |
主分类号 |
E21B43/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|