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Web of Proceedings - Francis Academic Press
Web of Proceedings - Francis Academic Press

Study on the Countermeasures for Improving Oil Recovery of Natural Water Flooding thin Oil Reservoirs with Complex Fault Blocks

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DOI: 10.25236/apssh.2019.005

Author(s)

Li Futang

Corresponding Author

Li Futang

Abstract

The shallow reservoir of Nanpu land is a typical complex fault block reservoir, according to the oil product, about 60.9% of the geological reserves which are thin oil reservoirs, and because it has an active geological bottom water as the small reservoir faults and a small oil-bearing area, it has entered the development stage of extra high water cut, and the degree of water flooding is low as well as the recovery rate. It is urgent to carry out technical research to improve oil recovery, aiming at the geological characteristics of reservoirs with the small oil-bearing area and sufficient natural energy, the NmII42 layer with high 63-10 fault block is a typical unit, and the deep flooding method is proposed to improve the reservoir volume and oil displacement efficiency and the technical advantages of a small scale, low input and flexible adjustment which provide the technical reference for the development and adjustment of the high water cut stage of similar oil reservoirs.

Keywords

Complex Fault Block; Natural Energy; Oil Displacement Efficiency; Spreading volume