发明名称 |
СПОСОБ ИЗОЛЯЦИИ ПРИТОКА ВОД В НЕОБСАЖЕННОМ ГОРИЗОНТАЛЬНОМ УЧАСТКЕ СТВОЛА ДОБЫВАЮЩЕЙ СКВАЖИНЫ |
摘要 |
FIELD: oil and gas industry, particularly methods or devices for cementing, for plugging holes, crevices, or the like. ^ SUBSTANCE: method involves removing pumping equipment from borehole; lowering tubing string in well; injecting hardening water-proofing solution in well through tubing string; forming water-tight layer in front of water-developing formation intervals. The water-proofing solution is cement mix modified with polyvinylacetate reagent taken in amount of 0.25-0.5% by cement weight. The water-proofing solution volume provides filling of hole annuity in non-cased horizontal well bore part through flow string lowered to horizontal well bore part bottom. Then the water-proofing solution is held in well for 2-3 hours and flushed out from the hole annuity by direct or reverse circulation after cement hardening initiation. ^ EFFECT: reduced time and material consumption. ^ 2 dwg |
申请公布号 |
RU2004108014(A) |
申请公布日期 |
2005.09.20 |
申请号 |
RU20040108014 |
申请日期 |
2004.03.18 |
申请人 |
Открытое акционерное общество "Татнефть" им. В.Д. Шашина (RU) |
发明人 |
Хисамов Раис Салихович (RU);Катеев Ирек Сулейманович (RU);Катеев Рустем Ирекович (RU);Салихов Мирсаиф Миргази нович (RU);Кандаурова Галина Федоровна (RU) |
分类号 |
E21B33/13 |
主分类号 |
E21B33/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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