DEVELOPMENT METHOD OF SUPER-VISCOUS OIL DEPOSIT WITH WATER-SATURATED ZONES Russian patent published in 2020 - IPC E21B43/24 E21B33/138 E21B7/04 

Abstract RU 2735008 C1

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil industry and can be used in development of shallow deposit of super-viscous oil with water-saturated zones. Method for development of super-viscous oil deposit with water-saturated zones includes construction of horizontal production well and located above injection wells, injection of displacing agent, location of water-saturated zone adjacent to production well, pumping of water-insulating compound into water-saturated zone, further process exposure and extraction of product from production well. Before injection of the composition in water shutoff producing zone producing well invert emulsion is injected in volume of 0.2-0.5 m3, invert emulsion is forced into formation by fresh water, and water-insulating composition is pumped under pressure not exceeding formation hydraulic fracturing pressure.

EFFECT: improving development efficiency of super-viscous oil deposit with water-saturated zones due to selective isolation of water-saturated zone by protection of productive zone of formation from penetration of water-insulating composition by preliminary injection of invert emulsion, reservoir properties of formation and reduced material costs.

1 cl, 1 ex

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Authors

Beregovoi Anton Nikolaevich

Rakhimova Shaura Gazimianovna

Kniazeva Natalia Alekseevna

Belov Vladislav Ivanovich

Dates

2020-10-27Published

2020-04-14Filed