文档介绍：336 石油学报 V0133 No6
年月 Nov
文章编号:———
塔里木盆地西秋一却勒冲断褶皱带
地质结构特征及油气勘探区带
12李 1 21吴 1 1
中国石油塔里木油田公司勘探开发研究院新疆库尔勒; 2100083)
3
造层剖面结构,邵盐上浅层冲断褶皱构造、盐内盐流动聚集构造和盐下复杂构造。浅层结构表现为东段的反冲和下盘背形构造,向
西逐渐转换为南秋反冲植康棺、北秋楔体构造以及夹于二者之间的向形构造,至却勒构造段转换为上盘正向大型逆冲推覆和
下盘背斜的组合结构。深部结构表现为中生界古隆起构造的再活动。盐下构造可以划分为东部新生代晚期冲断构造段、中部古隆
起构造段以及西部却勒古构造复活段。深、浅层构造平面分段的一致性和剖面垂向叠置关系揭示西秋地区盐上冲断结构与深部结构
在空间上可能存在耦合关系。钻井资料显示西秋却勒地区存在着多套勘探目标层位,即深层的下白垩统、盐内夹层以及古近系苏维
依组。构造分析表明西秋里塔格构造带东段的薄皮叠瓦逆冲带以及却勒塔格构造带的深层冲断构造带为有利的油气勘探区带。
关键词:塔里木盆地;西秋里塔格;却勒;冲断褶皱带;挤压构造;油气勘探区带
中图分类号: A
猀 thrust-fold and its hydrocarbon
exploration implication Tarim Basin
XIE Huiwenl Zhuxin2 Yon91 ZHANG LEI Cha01 Yangang
. Institute Petroleum Exploration&DevelopmentPetroChinaTarim 琄 841 珻;
2PetroChina Institute Petroleum 珺 1 00083China)
AbstractSeismic reveals 猀 a frontal and a whole
three profileiepostsaltshallow thrust-foldsubsah and plicated
structureswhichare the Paleogene Kumugeliemu Formation 甌 shallow
consist the eastern and western segmentsthe shows hanging and antiforms footwallwhilethe
has — Qiulitage and wedge Qiulitagewithsynformal
betweenHowevertheQuele segment turns bination large-scale forward nappe hanging
and anticline . may the adj ustment and the 猽琣 the
presalt can divided three segmentsincludingthe eastern newly , paleoupliftand western —
venated segment the Quele paleostructureTheconsistency and superposition between s