The Study Of The Pool Geological Modle Of Wei79-Pu95 Area

The most oil and gas fields in east of China are belong to fracturation area and the reserves is 32% of the total. It is very important to our energy industry to study these fields. The keystone of it is the research of faultage, the reservoir's heterogeneous and the relationship of the heterogeneous and reserve distribution. The difficoulty of it is to found a exact geological modle which can be accord with the real pool underground. The modle includes three parts: structure modle, reservoir modle and liquid modle. The reservoir modle is the core ,and it is the base of reserves study.Aiming at the Sha San Xiasan-Sha Si Pool of Wei79-Pu95 area,we study reservoir's heterogeneous and reserve distribution from stratum, sediment facies, faultage ,fluids and reservoir,and offer the pool's geological modle which based on reservoir modle. In the paper, we think the geologic structure is very complex and there are many faults which are all closed now in this area. The stratum vary greatly.The sediment facies include delta face, lake's bottom fan face and deep lake face. The sandstone which is belong to delta face is quitly good reservoir. The phycical property of reservoir is poor, the type of pore of reservoir rock mainly are integranular pore,intergranular solution hole.Reservoir is affected by lithology, lithofacies and faultages,the heterogeneous is serious.After research thorough a lot of information ,this paper offer the pool's geological modle and point out the reserves predominant position.Furthermor, we calculate and evaluate reserves.