大平房油田曲流河储层沉积微相特征及注水调整研究

Research on Sedimentation M icrofacies Features of Meandering Channel Reservoir and Water Injection Adjust ing in Dapingfang Oilfield

(辽河油田分公司, 辽宁盘锦124010 )

 Liaohe O ilf ie ld Company, CNPC,
Panjin 121040, China

Com plica ted fault block reservo irs of Dongy ing Fo rma tion
in Daping fang O ilfie ld in L iaohe O ilfie ld is con tinenta l
m eande ring channel deposits, of w hich, po int bar rese rvo irs o f
m eande ring channe ls are the m ain o il produc ing zones and
po int ba r rese rvo irs are characterized by sm all scale, poo r
physica l properties and poor􀀁comm un ica tion. In the course o f
the developm ent o f the zones, the produc tion perform ances
show ed com plicated w ith imperfect in jec tion􀀁production
system, poorw ate r flooding effect and low recovery factor. The
m eande ring channe l m icro facies and the ma in sed im enta tion
m icrofac ies are studied based on core analysis and a g reat
deal o f logg ing and production data as w ell as the
sedim en tation m arker, as a result, type Ⅰ and type Ⅱ
reservo irs are c lassified and evalua ted and the factors affecting
the effec t of w ate r flood ing are found ou t, so pertinent
ad justm ent on injection􀀁production system has been done to
im prove the controlling deg ree o f thew ate r flooding.