YC13-1气田生产水回注可行性研究

Feasibility Studyon YC13-1Gas Field Production Water Reinjection Process

YC13-1气田进入开发后期,压力大幅递减导致生产水处理效果变差,排海生产水含油量逐渐升高。为解决这一问题,结合现场实际,提出了生产水回注工艺的方案并做了可行性分析。分析结果表明:YC13-1气田生产水回注储集空间充足,水质达标,注入压力远低于底层破碎压力;采用生产水回注方案是可行的,回注后可完全避免生产水排放不达标的可能。

With YC13-1 gasfield entered thedevelopmentlaterstage, pressuresharplydeclined leading to bad etTect of the production water tredtment, and the oil content in discharged production water is gradually increased. To solve those problems, combined with the actual scene, this paper proposed using production water reinjection process scheme. The results showed that water reinjection reservoir space is suf＇flcient and the water quality meets the standards in YC13- 1 gas field, the injection pressure isfarbelow the broken pressure of＂ layer bottom. Reinjection is feasible and provides a way to solve the problem of unqualifiedl production water discharge.