四川盆地西部新场地区致密砂岩气藏储层预测方法研究  

In the Western Sichuan Compact Sandstone Gas Reservoir in Xinchang Area Reservoirs Prediction Research

作　　者：张玺华[1,2] 陈洪德[1,2] 侯明才[1,2] 林良彪[1,2] 陈安清 

机构地区：[1]油气藏地质及开发工程国家重点实验室,成都610059 [2]成都理工大学沉积地质研究院,成都610059

出　　处：《科学技术与工程》2013年第13期3534-3541,共8页Science Technology and Engineering

基　　金：国家自然科学基金重点项目(40739901);国家重大专项(2011ZX05002-004);高等学校博士学科点专项科研基金项目(20115122110002)联合资助

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。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 qual- ity 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, over- comes 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 reconstruc- tion after the earthquake data, description of small faults can be cleaed. Eventually established the underwater dis- tributary channel and fracture development belt superimposed area for the favorable reservoir development zone, as the next step exploration and, a reliable basis is provided.

关 键 词：致密岩石储层 沉积相 裂缝发育 井控提高分辨率 子波重构 

分 类 号：P539.1[天文地球—古生物学与地层学]