低品位小油砂体开发对策研究

Research on Offtake Strategy of the Badder-Grade Micro-Oil Sandbody: A Case Study of the N g 1 + 2 Reservoir in Gudong Oilfield

( 1 胜利油田有限公司孤东采油厂 2 中国石油大学, 东营)

 Gudong O il Product ion P lant,
ShengliO ilfield Co. L td. , SINOPEC, Dongy ing 257237,
China􀀁

The Ng1 + 2 reservoe r o f Gudong o ilfield is a m arg ina l
reservo ir of h igh􀀁inc lina tion m eander ing r iver depo sition, 23
m icro􀀁o il sandbodys only have a orig inal o il in place o f 3330
thousand tons, both section o f reservo ir and fla t o il􀀁w ater are
not clear. Resea rch o f the accurate strata co rre la tion and
tectonic interpre tation by gr id􀀁blanke t o il􀀁gas accumu la tion
layering theory, a lmo st Ng1 + 2 rese rvo ir d istr ibute on the
fau lt zone o f uplift, and nearly as fault, fault contro l o il􀀁gas
m igration. On the o rig ina l o il in place assessm ent, the artic le
pred icts recovery effic iency and rem ain ing recoverab le
reserves by disp lacem ent curve, decline curve and o il
d isp lacement e fficiency. The descr iption of rem a in ing o il
rea lizes locating or quantita tive ex am ination. Two new we lls
are dr illed and seven we lls are reper fo ra ted. Three we lls of
these w ells have a sing le w e ll o il production o f m ore than
twenty tons per day.