Study and Test on Self-pressurized Oil Transmission Technology of Associated Gas Cap in SAGD Production Station

doi:10.3969/j.issn.1006-6535.2023.03.021

Abstract

Abstract: Generally the oil between SAGD oil production station and the joint station is transmitted by pumping, with high energy consumption, significant loss and safety hazards. At the stage of steam chamber expansion in SAGD development, there is a great amount of associated gas stably generated, which make it possible to realize self-pressurized oil transmission. Therefore, a study was conducted on the self-pressurized oil transmission technology for SAGD production station. The original gathering and transmission technology was optimized on the basis of high and stable gas cap pressure of the buffer tank in SAGD production station, and self-pressurized oil transmission was enabled without any external force. The technology can bring about such economic and social benefits as low cost, high profit, staff reduction and improved efficiency. This technology has been stably applied in three stages of SAGD development: steam chamber expansion, stable oil drainage and initial steam chamber decline, providing technical support for the promotion and application of SAGD development technology.

Key words: self-pressurized oil transmission, associated gas, ultra-heavy oil, SAGD, Liaohe Oilfield

CLC Number:

TE866

Gao Zhongmin. Study and Test on Self-pressurized Oil Transmission Technology of Associated Gas Cap in SAGD Production Station[J]. Special Oil & Gas Reservoirs, 2023, 30(3): 161-167.

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