METHOD OF DEVELOPING OIL RESERVOIR Russian patent published in 2016 - IPC E21B43/20 E21B43/25 E21B7/04 

Abstract RU 2580330 C1

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil reservoirs with non-reservoir area by displacing oil via oil-producing and injection wells. By way of displacing agent injection is performed through well into formation and selection of oil reservoir hole. In reservoir area, which tapers off or not replaced in oil-saturated rock, spend a vertical well through oil reservoir, still well below reservoir and at a desired distance from first intersection again carried well through reservoir vertically in opposite direction - from bottom up. Thus constructed cased hole production string, cemented over entire length of well is perforated and at intersection with formation of well. Well development is performed in series. At first stage remote area is developed, and then near first zone of intersection of well oil formation. Well is completed with two columns tubing. First tubing is brought to formation of sole in area of second - a distant borehole intersection with formation and packer in casing below reservoir. Second tubing string is provided with a deep well pump. Said pump is lowered into well to required depth over formation in area of its first intersection. Development of formation is performed by pumping of displacement agent to formation, in particular water, through first tubing string, and oil extraction from formation is performed by means of deep-well pump and second tubing string.

EFFECT: higher efficiency.

1 cl, 1 dwg

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RU 2 580 330 C1

Authors

Denislamov Ildar Zafirovich

Enikeev Ruslan Marselevich

Ishbaev Rustam Rauilevich

Denislamova Gulnur Ildarovna

Dates

2016-04-10Published

2015-04-15Filed