萨北开发区二类油层吸水剖面地质成因分析

北二西西块是萨北开发区第一个二类油层聚驱区块,根据注水井在空白水驱笼注阶段的吸水状况特征,通过沉积相特征、砂体规模、砂体厚度、储层渗透率、微构造特征等系统研究,明确了影响二类油层吸水状况的关键因素是砂体厚度和储层渗透率;砂体沉积相特征、砂体规模是其次要影响因素,微构造特征影响甚微。

The Analysis of Geology Reasons in Drinking Profiles of the Secondary Reservoirs in SaBei Oilfield

The east block of BeiErxi is the first block of the secondary reservoirs which will be drived by polymer in north SaErtu oilfield,basing on the drinking feature of the water wells at general watering stage during only water driving,the paper study sedimentary character,scale of sandbody,thickness of sandbody,reservoir penetrability and microstructure character systemically,finally know the key factors are the thickness of sandbody and the reservoir penetrability that affect the drinking feature of secondary reservoirs,the sedimentary character and the scale of sandbody are the secondary factors,microstructure character is potty.