Fine Reservoir Descriptions Of The 2th Member Of Shahejie Formation In Liang11 Fault Block Of Dongying Depression

In this paper,with the guiding of sedimengtology,high resolution sequence stratigra phy and the theory of reservoir hierarchuy interface,made full use of core,grading analys -is,well logging and its digital process outcome and so on.on basis of the predecessor who divided the area into system tracts,parasequence sets,the mathod of"isobath time quautum contrast"and"cyclic contrast,step control"are adopted to fulfill the division and description of fine strata and monosandbody.and take the theory of hierarchuy interface as the instruction to distinguish,divide and contract causal body inside mono-sandbody.From the link above,divided the seven fine stratas of Es27 and 8 in this area into 20 monosandbodies,and further divided 8 main monosandbodies into 18 causal bodies. Inside this stratigraphic framework,divided the deposite in the area into 7 structural elements:underwater distributary channel,underwater natural levee,abandoned channel,interdistributary bay,estuary dam,distal bar and delta mud. Thereamong,on the basis of the differences of position,thickness of sand layer and physical properties,further divided estuary dam into 5 substructural elements: damtop,main dam,dam edge,interbar,dam laterl wing.and researched the characteristics of structural elements in horizon and vertic .and summarized their spatial organization types. at the same time,intensivly studied horizontal,interlayer,intralayer and microscale heterogeneity of reservoirs in the area.In this foundation, adopted the method of FZI to set up the divided standard for flow unit of Es27 and 8 of this area,hereby, divided the monosandbodies and causal bodies into four types of flow unit,and studied the regional dist-ribution characteristic of the reservoir flow units.