高温分子膜驱油剂驱油效果实验研究

分子膜驱油剂是一种新型驱油剂,它主要是使岩石表面亲油性转为中性,从而剥离油膜,通过自发吸附作用驱替出孔隙内的残余油。分子膜剂的优点有驱油效率好、不污染储层、价格低、投资少。本次研究结果可以看出分子膜驱能够在水驱不出油的情况下继续驱替出原油。本次实验使用了1%、0.5%、0.25%三种浓度的分子膜剂。实验表明分子膜浓度0.5%提高采收率最明显。

Experimental study of oil displacement agent for the high temperature molecular film oil displacement agent

Molecular film oil displacement agent is new , which mainly changes the rock from oil wettability to neutrality, thereby stripping the oil film,displacing residual oil in the pores through spontaneous absorption of displacement. Molecular film agent has the advantages of high displacement efficiency, and not polluting the reservoir, low prices, less investment. We can see from the study results that molecular film continue to drive out the crude oil,when it carz not been drove out by water flooding. Molecular film oil displacement agent used in the experiment covers three kinds of concentration, 1%, 0. 5%, 0. 25%. Experiment, Molecular concentrations of 0. 5% gets the highest oil recovery.