低渗透油田开发实践及认识

Deve lopment pract ice and know ledge on low
permeability oil reservoir

崔梅红 殷志华

CuiMeihong ,Y in Zhihua

江苏油田分公司试采一厂, 江苏江都225265

Geology R esearch Institute of No. 1
Production TestD epartment, Jiangsu O ilfield Company,
SINOPEC, Jiangdu 225265, China

Bym eans o f the ana lysis for the fluid and deve lopm ent
characteristics o f low perm eability o il reservo irs, w e hav e
found out them a jo r prob lem s ex isting as the low w e ll pattern
density, less precise deve lopm en t sequence c lassification,
less injection - to- production - w e ll ratio. W e worked out
the deve lopm ent po licy of low perm eability o il reservo irs in
Shanian O ilfield by u tilizing reservo ir eng ineer ing, indoo r
experim ents and reservo ir data and im plem en ted ad justm ent o f
developing. The obv ious resu lts have been obta ined in
ad justm ent, for examp le, the natural dec line ra te and
composite decline rate o f oil w ells obviously drop, w ater cut
rises up com pa ratively repose fu lly, the m ain un it o f the
ove rwhelm ing m a jo rity is steady in output and the pressure
level is steadily increasing.