Structural Modeling And Key Target Evaluation Of Eastern Section Of Kedong Fault Structural Belt

The temporary exploration results in the Tarim Basin are four large blocks of the Tarim Southwest Piedmont,the Maigaidi Slope,the Qiuli Tage and the Rock Dolomite,the Tarim Southwest Piedmont is located in the southwest of Tarim Basin,it has been found that Kirkia,Akmomu,Kedong three oil and gas reservoirs / fields,raw and storage conditions are superior,Kedong structural belt has been a few years into the main field.According to the drilling data of Kedong 1,Kedong 101,Fusha 2,Yang 1 wells drilled in Kedong Structural belt,combined with geological outcrop,non-seismic,seismic data to establish the focus of the construction model.The model is based on the theory of piedmont thrust belt and the actual geological characteristics.The nappe lower plate can be determined by the geometric outcrop of the Kirin 101 well,the nappe region depends on the results of the real drilling of Yang 1 well and the geological outcrops.Using the workstation Landmark system,the seismic interpretation of the prestack time migration data is carried out and the equal T0 diagram of the TE reflection layer is compiled.It is clear from the evolution analysis that the Kedong No.4 structure began to develop during the Pliocene,since the Pleistocene,with the continuous action of the extrusion,the structural amplitude is further increased,the trap is relatively complete,and the reservoir matching conditions are good.Kedong No.4 structure is buried deep,Paleogene gypsum rock,mudstone widely distributed,a large number of absorption of structural stress,traps save relatively complete oil and gas preservation is very favorable.