Establishment Of Reservoir Space Lattice Frame Of Horizontal Well Development In Su 53-4 Well Area

The geological feature of reservoir in Su 53 block is very complicated.Reservoir sedimentation is on the background of large distributive area of braided river sandstone.The distribution of sand bodies has feature of random,its continuity and connectivity are poor,and the reservoir is low porosity and low permeability,reservoir heterogeneity is strong.The distribution of gas reservoir is controlled by the sedimentary microfacies,it is not even.It's meaningful to carry out description of the horizontal well strata reservoir space framework and quantitative geological modeling for further understanding of geologic achievement in Su-53-4 block,with the new technology and method.Right now,geological modeling is an important method for the current study of oil and gas fields.As geological feature of reservoir in Su 53 block is very complicated,it's a challenge to build a 3D model which can be used in the actual production.By establishing the geological model in Su-53-4 block,regard meticulous description of the oil and gas reservoir as main line,regard geologic,earthquake and log as basic data,adequately using different research method to meticulously describe the Su 53-4 reservoir origin,types,development scale,distribution,sedimentary model and spatial structure characteristics in the way of all-round and multi perspective.The main research contents,the division and contrast of the thin layers of the target strata,petrophysical study of the target strata,inversion and prediction of 2D seismic reservoir and so on.Build a model and analyze the reliability of the model.By establishing the geological model in Su-53-4 block,a practical geologic modeling method and simulation parameters of reservoir are summarized.Then it's used in the area where well control is not popular.The technology will be used to calculate the reserves,suggest the location of the wells,optimally design the track of the horizontal well,offer geological advice in the process of geosteering drilling in horizontal well,provide geologic basis for the subsequent deployment and implementation of development wells.