METHOD FOR EXTRACTION OF SEDIMENTOLOGICALLY SCREENED OIL-SATURATED LENS BY ONE WELL Russian patent published in 2004 - IPC

Abstract RU 2242594 C1

FIELD: oil extractive industry.

SUBSTANCE: method includes extraction of bed liquid by one well until bed pressure lowers to level of oil saturation by gas or oil debit decrease to rentable limits. Lens profile is analyzed, limits and portions are determined with lowered and heightened deposit placement. Through vertical well in productive layer in direction of lowered or heightened portion no less than one horizontal shaft is drilled. Periodical feeding of water into lowered lens portion is performed, and extraction of bed fluid is performed periodically from heightened portion of lens.

EFFECT: higher oil yield.

3 cl, 2 ex

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RU 2 242 594 C1

Authors

Kandaurova G.F.

Khisamov R.S.

Kolesnikov V.G.

Kandaurov S.V.

Dates

2004-12-20—Published

2004-02-02—Filed