摘要
克拉玛依油田七东区砾岩油藏,注水开发已经25年,一直保持压力自喷开采,目前采出程度接近40%,预测最终采收率可达45%.本文从注采系统的调整、压力保持方法、注采速度的控制,以及开发调整方面作了经验介绍。
Water injection for maintenance of reservoir pressure has been employed for 25 years in a conglomerate reservoir of Karamay field. Because of water- flooding the reservoir remains in flow production and the current recovery ratio is close to 47%. The estimated ultimate recovery ratio may reach 45%. Experiences in adjustment of injection-production pattern, means of pressure maintenance and control of injection and withdrawal rate are presented in this paper.
出处
《石油学报》
EI
CAS
1986年第3期49-56,共8页
Acta Petrolei Sinica
