凝析气藏的经济开采模式

中国工程科学 ›› 2001, Vol. 3 ›› Issue (3) : 85 -91.

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凝析气藏的经济开采模式

刘廷元

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Economic Development Models of Gas Condensate Reservoir

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摘要

液态凝析油是凝析气藏的重要产品，它的开采应该是有效而经济的。介绍了国外近20 a来在凝析气藏开采技术领域的各种经济模式，包括回注φ_d=75%干气、自流回注、注N₂、注水、水气交替注和注CO₂等开采模式。研究结果表明，这些开采模式同传统的降压开采方法相比，能够有效地适应地面-地下的各种复杂情况。

Abstract

Liquid condensate is an important product of gas condensate reservoir, and its recovery should be both efficient and economic. This paper discusses economic development models of all kinds during the last two decades in the engineering field of gas condensate reservoirs, including reinjection with 75% dry gas recycling, dumpflooding of gas, nitrogen injection, water injection, water and gas alternating injection, C〇₂ injection, etc. The results of the study indicate that these development models will be more effective than conventional pressure depletion methods and will be adaptable to complex cases of surface-underground gas condensate reservoirs.