Abstract: The current petroleum exploration activities in the Tarim Basin are mainly concentrated in the Mangar and Kuqa petroleum systems.Exploration practice proved that multidisciplinary study using seismic (seismic-structural interpretation, constraint seismic inversion,coherence calculation),logging reservoir evaluation,digital simulation on fracture distribution,production test and integrated geological analysis enables to identify the features of the carbonate reservoirs,facilitates to do lateral reservoir prediction and realize the oil and gas distribution laws and is a very useful method to do exploration in the carbonate oil and gas provinces.As for the complex high and steep structural belts,salt distribution areas,high geostress and mountainous surface in the Kuqa system,using the balanced cross section technique,fault-related fold theory and advanced seismic acquisition,processing,imaging and interpretation,as well as rapidly penetrating the huge salt interval drilling technique facilitates detailed and effective structural interpretation and oil & gas identification and may lead to significant exploration breakthrough.

Key words: Tarim Basin, petroleum system, reservoir, karst, coherent, fault-related fold

摘要： 塔里木盆地油气勘探主要集中在满加尔油气系统和库车油气系统.满加尔油气系统中油气勘探的关键是了解储层的发育、风化壳和裂缝的分布规律.库车油气系统中下第三系盐的塑性流动、地层的强烈变形和高陡的构造形态给勘探带来巨大的困难.轮南是满加尔油气系统中油气富集区之一,勘探实践证明地震、测井储层评价、裂缝分布数值模拟、产能测试、综合地质分析等多学科联合应用,对碳酸盐岩储层进行勘探是十分有效的方法.研究结果表明,轮南中部和西部地区是最有利的勘探地区.在库车油气系统中,对于具有地表山地、巨大地应力、厚层盐分布的高陡构造带,通过应用平衡剖面技术、断层相关褶皱理论和先进的地震采集、处理、成像和解释,快速钻过巨厚盐层钻井技术,建立符合实际的地质构造模型,实现了油气勘探的突破,发现了克拉2大型气田.上述两个地区的实践表明,新理论和先进的技术能带来油气勘探的重大成功.

关键词: 塔里木盆地, 油气系统, 储层, 岩溶, 相干体, 断层相关褶皱