发明名称 METHOD FOR ADJUSTING ACCELERATION PROFILE OF FORCE-PUMPING WELL
摘要 FIELD: oil extractive industry. ^ SUBSTANCE: according to the method, suspension of water-soluble polymer in inert liquid is fed into the well and pushed into the bed. Feeding of suspension is performed at pressure higher than pressure of cracks opening in highly permeable seam. As suspension if water-soluble polymer such suspension is used, which provides for possible penetration only into open cracks of highly permeable seam and filtering on surface of low-permeable seam. This prevents light-filtering gel-forming compound pumped afterwards from getting into it, which compound has gel-forming delay of 3-4 hours. After forming of gel of this compound pressure in the well is dropped below pressure in low-permeable seam. ^ EFFECT: higher oil yield of deposit due to redistribution of water pumping between highly permeable and low-permeable seams. ^ 3 ex
申请公布号 RU2235866(C1) 申请公布日期 2004.09.10
申请号 RU20030115405 申请日期 2003.05.26
申请人 发明人 SORKIN A.JA.;KAN V.A.;STUPOCHENKO V.E.;DJABIN A.G.
分类号 E21B43/20 主分类号 E21B43/20
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