METHOD OF DETERMINATION OF OIL EXTRACTION FACTOR AT NONLINEAR FILTRATION Russian patent published in 2014 - IPC E21B49/00 G01N15/00 

Abstract RU 2504654 C1

FIELD: oil-and-gas industry.

SUBSTANCE: proposed method comprises lab and geophysical studies of rock porosity, permeability, oil saturation and oil displacement and determination of pressure gradient field over the deposit area. Note here that collector and filtration-capacitive properties are defined in expanded pressure range and linear speed to make 1*10-4 MPa/m and 1*10-4 m/days. Defined are statistic porous hydrodynamic and energy structure of rock including reserves of hydrocarbons in the filed of pressure gradients while said factor is calculated as the portion of threshold deposit volume per one producing well.

EFFECT: higher accuracy, reliability and accelerated determination.

1 ex, 3 tbl, 3 dwg

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RU 2 504 654 C1

Authors

Jaryshev Gennadij Mikhajlovich

Jaryshev Jurij Gennad'Evich

Jamshchikov Vladimir Vladimirovich

Dates

2014-01-20Published

2012-07-27Filed