弱走滑断控储集体分类预测与描述

Classification prediction and description of weak strike slip fault controlled reservoirs

富满油田富源III区位于塔里木盆地台盆区NE向走滑断裂末端,其断裂活动弱,断控储层地震响应不明显,断裂及储层描述难度大。针对弱走滑断裂,开展倾角导向滤波及地震分频处理,提高了断裂地震识别精度。通过各向异性滤波、子波分解与重构、倾角滤波处理,增强洞穴型、裂缝型储层地震响应特征。并以此为基础,应用结构张量属性、甜点属性、振幅曲率以及增强相干,对弱走滑断控储集体边界及内幕进行标注,最终形成了富满弱走滑断控储集体分类预测与描述技术。

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 filtering.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.