【摘要】 四川盆地新场地须家河组X49砂层组属于扇三角洲前缘沉积,为该地区最重要的产气层。由于埋藏深度深,储层较致密,其中沉积微相和裂缝的发育程度共同控制着致密砂岩优质储层的形成和发育。以地震沉积学理论为主体研究思路,运用钻井控制的混合相位子波反褶积技术提高分辨率技术,克服了复杂构造情况地震数据非零相位的缺陷,扩宽了地震有效频宽,同时使剖面零相位化,确定了地震反射的地质含义。基于子波重构后的地震数据能够清晰的刻画小断裂的发育。最终确立了水下分流河道与断裂发育带的叠合区域为储层有利发育区,扩宽了地震沉积学的研究手段,同时预测结果为下一步勘探提供了可靠依据。更多还原

【Abstract】 In Sichuan Basin Xinchang area,Xujiahe group X49 sand sets are fan delta front deposition,as the region’s most important product layer.The sedimentary microfacies and fracture development degree of control quality of reservoir formation and development.Based on the seismic sedimentology theory as the main research ideas,the drilling control of mixed phase wavelet deconvolution technique is used to improve resolution technique,overcomes the complex structure seismic data non zero phase defect,widening the earthquake effective bandwidth,while making the profile of zero phase,determine the seismic geological meaning.Based on the wavelet reconstruction after the earthquake data,description of small faults can be cleaed.Eventually established the underwater distributary channel and fracture development belt superimposed area for the favorable reservoir development zone,as the next step exploration and,a reliable basis is provided.更多还原