Classification prediction and description of weak strike slip fault controlled reservoirs
TheFuyuan Ⅲ area of the Fuman oilfield is located at the end of NE strike-slip fault in the Tarim Basin platform basin area.The fault activity is weak,the seismic response of the fault-controlled reservoir is not apparent,and the description of fault and reservoir is complex.Aiming at weak strike-slip faults,dip angle guided filtering and seismic frequency division processing have been carried out to improve the accuracy of fault seismic identification.The seismic response characteristics of cave and fracture type reservoirs are enhanced through coherent anisotropic filtering,waveform reconstruction,and dip filte-ring.Based on this,structural tensor attributes,dessert attributes,amplitude curvature,and enhanced coherence are applied to label weak strike-slip fault-controlled reservoirs'boundaries and interior,ultimately forming a classification,prediction,and description technology for rich and weak strike-slip fault-controlled reservoirs.