基于地震资料的构造——沉积综合分析法——一种剥蚀厚度恢复新方法  

Integrative structural-sedimentary analysis method based on seismic data: a new method for restoring denuded thickness.

作　　者：胡少华[1] 

机构地区：[1]中国地质大学.北京

出　　处：《石油地球物理勘探》2004年第4期478-483,共6页Oil Geophysical Prospecting

摘　　要：三叠系是塔里木盆地最具勘探价值的层系之一,因此对其进行剥蚀厚度恢复及原型盆地研究,可以进一步查明三叠系沉积相带分布、盆地格架以及勘探前景预测等问题,对塔里木盆地勘探具有重要意义。本文提出一种基于地震资料的构造—沉积综合分析,进行剥蚀厚度恢复的方法。通过对大量地震资料和钻井资料分析,对塔里木盆地三叠系剥蚀厚度进行恢复,认为塔里木盆地塔西南地区曾经沉积较厚的三叠系,三叠纪原型盆地可能是受北昆仑和南天山对挤形成的两个前陆盆地,即库车前陆盆地和北部前陆盆地。Triassic is one of the valuable formations for exploration in Tarim basin,thus the restore of denuded thickness and study of raw basin can further clarify the following problems such as distribution of Triassic sedimentary zone,framework of basin and prediction of exploration prospect,that are significant to exploration in Tarim basin.The paper presented a method for integrative structural sedimentary analysis based on seismic data in order to restore the denuded thickness.The restoring the denuded Triassic thickness in Tarim basin is carried out by analysis of a majority of seismic data and drilling data.It's considered that Taxinan area in Tarim basin had thicker Triassic sediments,the raw Triassic basin were two foreland basins formed from the press of Beikunlun and Nantianshan in opposite direction,that were Kuche foreland basin and North foreland basin.

关 键 词：剥蚀厚度 地震资料 三叠系 塔里木盆地 钻井资料 原型盆地 沉积相带 库车前陆盆地 勘探前景 格架 

分 类 号：TE122[石油与天然气工程—油气勘探] P618[天文地球—矿床学]