石油地球物理勘探2019，Vol.54Issue(2)：423-432,前插6,11.DOI:10.13810/j.cnki.issn.1000-7210.2019.02.022
滑塌浊积扇内幕结构及成因——以涠西南凹陷流一段上亚段为例
Internal structures and genetic mechanism of slump turbidite fans:an example of the E2l1in Weixinan Sag
摘要
Abstract
Large-scale slump turbidite fans were developed in the upper E2l1 of Weixinan Sag,which are favorable targets for the hydrocarbon exploration.A variety of geological and geophysical means such as sedimentary sequence,stratal slice,facies-constrained reservoir prediction, and forward modeling are used to research their internal structures,key controlling factors,and the sedimentary model.The results show that the slump turbidite fan of the upper E2l1in Weixinan Sag has a few incised channels.They show V-or U-shaped wave or short wave with a spot and strip distribution on seismic profile.The lithologic assemblage is characterized by fining-upward sedimentary sequence.The cores have turbidite structures such as deformation bedding,coiling bedding,and impression.Internal structures of turbidite fan in this area are composed of sand bodies with different thickness,different lateral distribution,and variable contact styles.The internal structures and genesis of the turbidite fans were controlled by middledeep lake facies,its own gravity,and structural slopebreak zone of Fault Zone No.2.This study provides references of the slump turbidite fan study for Weixinan Sag and other basins.关键词
涠西南凹陷/滑塌浊积扇/地层切片/模型正演/相控稀疏脉冲反演/内幕结构Key words
Weixinan Sag/slump turbidite fan/stratal slice/forward modeling/facies-constrained sparse pulse inversion/internal structure分类
天文与地球科学引用本文复制引用
陶倩倩,周家雄,孙文钊,陈丽君,李达..滑塌浊积扇内幕结构及成因——以涠西南凹陷流一段上亚段为例[J].石油地球物理勘探,2019,54(2):423-432,前插6,11.基金项目
本项研究受国家科技重大专项"南海西部海域低渗油藏勘探开发关键技术"(2016ZX05024-006)资助. （2016ZX05024-006）
