地震数据处理技术在准噶尔盆地东部C25井西区砂体识别中的应用  

APPLICATION OF TECHNIQUE OF SEISMIC DATA PROCESSING TO THE IDENTIFICATION OF SANDBODY OF C25 WELL IN THE EASTERN JUNGGAR BASIN

作　　者：刘春慧[1] 金振奎[1] 刘家铎[2] 王铮[3] 朱桂芳[4] 

机构地区：[1]中国石油大学资源与信息学院,北京102249 [2]成都理工大学,四川成都610059 [3]新疆石油管理局井下作业公司研究所,新疆克拉玛依834000 [4]新疆油田分公司勘探开发研究院,新疆克拉玛依834000

出　　处：《矿物岩石》2007年第4期104-111,共8页Mineralogy and Petrology

基　　金：国家973项目(编号:2006CB202304)

摘　　要：地震沉积学是应用三维地震信息研究沉积岩及其形成过程的学科,是继地震地层学、层序地层学之后的又一新兴边缘交叉学科。利用以90°相位转换、等时地质切片等最新的三维地震信息,结合其他地球物理技术对准噶尔盆地东部C25井西区侏罗系西山窑组进行等时地层格架下的沉积微相和沉积发育史研究,详细厘定目的层西山窑组煤下各砂体的接触关系,识别砂质辫状河三角洲前缘储层穿时体现和砂体发育位置,并准确定位出优质储层发育区位于工区西、西南和西北部,其砂体沉积厚度大,也是岩性圈闭发育的有利区,为下一步勘探展示出良好的前景。Seismic sedimentology is a subject of using seismic information to study sedimentary rocks and their forming processes. It is a new marginal intersection subject following the seismic stratigraphy and sequence stratigraphy. The key methods of researching the seismic sedimentology include 90°-phase conversion,strata slicing and so on. The application of the key techniques, combined with other geophysical technologies, to the study of microfacies and sedimentary growth history under the isochronal strata framework revealed the favorable prospect in petroleum exploration and development. The seismic attributes and well log data analysis by using the concept of seismic sedimentology and the evaluation of exploration target on Jurassic Xishanyao Formation in the west of C25 well of Eastern Junggar Basin provided a strong base for searching high quality reservoir and identifying subtle traps.

关 键 词：地震沉积学 90°相位转换 等时地质切片 沉积微相 岩性解释 储层预测 

分 类 号：P631.44[天文地球—地质矿产勘探] P618.130.2[天文地球—地质学]