分子膜驱油提高驱油效率的实验室研究

Laboratory Study on MD to Enhance Oil
D isplacementEff ic iency

董大鹏 冯文光 朱绍鹏 郑 军

Dong Dapeng ,Feng
Wenguang, Zhu Shaopeng et a.

成都理工大学能源学院油气藏地质与开发工程国家重点实验室, 四川成都610059

StateKey Laboratory ofO il and Gas
R esevo ir G eology and Exploitation, Chengdu University
of Technology, Chengdu 610059, China

Because orig inal o il ma in ly ex ists in m icro-ho les, the
chem ica l d isplacem ent now aday has little e ffect on o il fie ld of
low perm eab ilit. Our research is based on the theo ry that there
w ill be a layer of m onomo lecu la r film by w ay of the static
electr ic ity absorption. Then the monom loecua lr film can
change the w ettab ility o f the surface and displace ou t the
o rig ina l o il in sm a ll holes. So the o il d isp lacement w ill be
ra ised. W e have done m any exper iments w ith rocks o f superlow
perm eab ility for about tw o years, and the resu lts ind icate
tha t the m onomo lecu lar film cou ld br ing h igher o il
d isp lacement e fficiency than w ater d isplacem ent about 10%.
The effect is very prom inen t.