准噶尔盆地近地表结构复杂条件下低幅度和岩性、地层圈闭的勘探(为庆祝《新疆石油地质》创刊20周年而作)  

Exploration of the Low-Amplitude Lithologic and Stratigraphic Traps Under Complicated Conditions of Near-Surface Structures in Junggar Basin

作　　者：李立诚[1] 

机构地区：[1]中国石油新疆油田公司,新疆克拉玛依834000

出　　处：《新疆石油地质》2000年第6期435-455,共21页Xinjiang Petroleum Geology

摘　　要：准噶尔盆地腹部近地表地质结构复杂，横向、纵向变化很大，地下勘探目的层系——侏罗系总体表现为自北向南的大单斜，圈闭类型主要为低幅度的背斜、断块和岩性、地层圈闭，勘探难度较大。文章提出了盆地腹部侏罗系勘探必须运用层序地层学的方法，充分运用地震资料和井下资料，从查清沉积格架入手；并指出了在综合运用对勘探起决定性的作用地震处理技术——静校正、速度、精度分辨率、反演、偏移归位、地质建模和三维可视化等技术时应注意的问题及正确使用方法。The near surface geological structure in the hinterland of Junggar Baisn is complicated varying significantly in the horizontal and vertical direction． The target formation-Jurassic is generally a major monocline in the north south direction． The types of traps are dominated by lowamplitude anticlines fault block and lithologic and stratigraphic． Therefore this paper points out that sequence stratigraphy methodology must be used to carry out exploration of the Jurassic in the hinterland of the basin while making full use of the seismic and subsurface information． On the basis of surveying of the depositional frameworks the seismic processing techniques which plays a dominant role in exploration should be applied synthetically such as static correction velocity accuracy resolution inversion seismic migration geologic modeling and 3 D visualized techniques while paying attention to the problems concerned and the correct methods．

关 键 词：构造 岩性圈闭 准噶尔盆地 油气勘探 

分 类 号：P618.130.8[天文地球—矿床学] TE122[天文地球—地质学]