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2 235 866

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Application

2003115405/03, 2003-05-26

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Start date

2003-05-26

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Actual filing date

2003-05-26

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Published

2004-09-10

(72)

Inventor

Sorkin A.Ja.Kan V.A.Stupochenko V.E.Djabin A.G.

(73)

Holder

Sorkin Aleksandr JakovlevichKan Vladimir AleksandrovichStupochenko Vladimir Evgen'EvichDjabin Aleksandr Gennad'Evich

METHOD FOR ADJUSTING ACCELERATION PROFILE OF FORCE-PUMPING WELL Russian patent published in 2004 - IPC

Abstract RU 2235866 C1

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

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RU 2 235 866 C1

Authors

Sorkin A.Ja.

Kan V.A.

Stupochenko V.E.

Djabin A.G.

Dates

2004-09-10—Published

2003-05-26—Filed

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