吐玉克油田鲁2块注水开发参数优化研究

THE OPTIMIZATION OF WATERFLOODING PARAMETERS FOR BLOCK LU2 IN TUYUKE OILFIELD

吐玉克油田鲁2块为超深层稠油油田,油藏埋深达到2300m,地层原油粘度为526mPa·s。大量前期研究认为注水开发是目前经济技术条件下唯一可行的开发方式。利用CMG数值模拟软件和PIPESIM节点分析软件针对鲁2块前期注水现场试验,对相关的注水参数进行优化研究,重点通过对注入水温度、注水速度对地层原油温度场和粘度场的计算,优选了注水参数,研究表明注水温度在10～80℃之间时对油田开发效果影响不大,注入水温度采用常温水即可。

Block Lu2 in Tuyuke oilfield is a very deep heavy oil reservoir with up to 2300m burial depth and 526mPa. s in-place oil viscosity. Under the present economic and technical condition, the only feasible development way is waterflooding. In the light of the waterflooding field experiment in Block Lu2, CMG numerical simulation software and PIPESIM nodal analysis software were used to optimize waterflooding parameters. It is concluded that injected water temperature ranging from 10℃-80℃ have slight effects on the recovery, so normal temperature water can be used as injected water.