Abstract:Dongying deprssion is a half graben depression in the southeast of Bohai Sea basin, of which sand gravel fan is widely developed in northern steep slope. With steady improvement of degree of prospecting, the proportion of discovered structural reservoirs is gradually declined while the proportion of concealed reservoirs is constantly increased in recent years, of which sand gravel body reservoirs is an important prospecting direction, the new discoveries have been reported in each year. The paper first analyzed geologic feature(including structural, stratigraphic and depositional) of northern steep slope of Dongying depression, second explained geologic feature of sandygravel body from depositional type, space distribution and topographic classification, then analyzed the features of sandygravel body (different fans) corresponding to geologic feature on seismic profiles , finaly pointed out the regularity of which sand gravel body formed reservoir. Accordingly, sand gravel body can be directly found on seimic profile and prospecting target can be provided.
孔凡仙 . 东营凹陷北部陡坡带砂砾岩体的勘探[J]. 石油地球物理勘探, 2000, 35(5): 669-678.
Kong Fanxian. Prospecting for sand-gravel body in northern steep slope of Dongying depression. OGP, 2000, 35(5): 669-678.