“启源YC-2”驱油剂提高低渗透油田采收率探索性研究

Study on Improving Recovery of Low Permeability Oil Fields by Oil Displacement Agent “Qiyuan YC-2”

针对目前低渗透油层水驱采收率低的问题,在室内进行了"启源YC-2"驱油剂性能及提高采收率实验,并在姚店油田应用实际情况进行分析。结果表明:"启源YC-2"驱油剂稳定性好,具有超低界面张力,较强的乳化能力。同一注水区域注剂、未注剂区块所对应受益油井产量相比较,注"启源YC-2"驱油剂产量高。注剂前后受益油井产量相比较,注剂后产量上升。

Aiming at low water displacement recovery of low permeability oil beds, properties of oil displacement agent ＂YC-2＂ were studied, and enhancing oil recovery experiments with the oil displacement agent were carried out in lab, then practical application results of the oil displacement agent ＂YC-2＂ in Yaodian oilfield were analyzed. The results show that the agent ＂YC-2＂ has high stability, super-low interracial tension and strong emulsifying capacity. In the same region, through comparing well production rate, it＇s proved that the production rate of well with the oil displacement agent ＂YC-2＂ is higher than that of well without the oil displacement agent ＂YC-2＂, the well production rate after using the oil displacement agent ＂YC-2＂ is higher than that b^fore using the oil displacement agent.