新立油田断层附近高效调整井部署方式研究

Research on placement of efficient adjustment wells near faults in Xinli oilfield

针对吉林新立油田断层发育的特点,以断层对油气分布的控制机理研究为基础,建立了断层对油气富集的控制模式;综合应用多学科技术手段,研究了断层影响下的剩余油分布规律;结合断层附近现有井网类型和剩余油状况,优化确定了合理的高效调整井布井方式。根据研究成果指导实际布井76口,平均单井日产液为11.8 t/d,日产油为6.5 t/d,其日产油是老井产量的5.4倍,取得了较好的效果,为高含水期挖掘剩余油潜力探索出一条新的技术思路。

A model of faults control action on oil and gas distribution is set up based on control mechanism research and faults development characteristics in the Xinli oilfield of Jilin province. The distribution of remaining oil under the impact of faults is studied by applying multidisciplinary methods. Adjustment wells are placed based on well pattern and remaining oil near faults. As guided by the research result,76 wells have been placed,with average single well daily mass production of 11.8 t/d,daily oil of 6.5 t/d,which is 5.4 times of old wells. This inspiring result provides a new way of producing remaining oil in high water cut period.