Seismic Inversion Technology and Applications of Dense Clastic of Silurian in the Northern Slope of the Central Tarim Basin

Dense-low porosity and permeability lithologic reservoirs have been found in the northern slope of the central Tarim Basin.Major horizon is lower sandstone member of lower silurian kepingtage formation.Lithologic oil and the gas reservoir has typical characteristics of thin interbeds of sandstone and mudstone,and large lateral variations,strong heterogeneity.Acoustic impedance acoustic impedance and shale oil sandstone of the overlap range so that it is difficult to distinguish.According to the lithologic traps,difficulties in geological,geophysical characteristics of tight clastic reservoir,it develops the seismic reservoir prediction and description technology research.This paper presents tight clastic rock reservoir seismic inversion technique of prestack simultaneous inversion based on partial stack data combined with geostatistics.Through the use of actual data of tight clastic rock in the northern slope of the central Tarim Basin,it verifies the validity of the inversion to reservoir prediction.