聚合物驱后增产技术研究

Research on Technology of EOR after Polymer Flood

( 1. 胜利油田有限公司现河采油厂 2. 中国石油大学, 东营)

Three k inds of EOR m ethods are researched to improv e
o il recove ry a fter po lym er flood ing under the reservo ir
cond itions of Gudao o ilfie ld, w hich is en listed as h igh􀀁
efficiency o il d isplacem ent techno logy, po lym er floccu la ting
reutilization techno logy and in􀀁depth profile contro l
techno logy. Using plate m ode ls to sim ulate heterogeneous
reservo ir character istics, o il recovery increm ent and economy
efficiency are researched by chang ing the in jec ting vo lum e o f
operation ag ents. The results ind ica te that o il recovery can be
enhanced by app ly ing above􀀁m entioned techno log ies. The
injecting vo lum e should be optim ized to ge t mo re bene fits.
Improv ing sw eeping effic iency shows m ore potentia lities on
EOR than increas ing w ash o il rate.