西南石油大学学报（自然科学版）2011，Vol.33Issue(6)：31-37,7.DOI:10.3863/j.issn.1674-5086.2011.06.006
黄河口凹陷西北部滑塌浊积扇沉积特征
摘要
Abstract
By studying the lithology, sedimentary texture, structural attitude, logging curve features and seismic reflectance signature in Member 3 of Shahejie Formation in Huanghekou Sag, Bohai Bay Basin, we found that the oil-bearing sand bodies in the study area belong to slump turbidite fan deposition formed the under semideep lake and deep lake environment. Slump turbidite fan facies include inner fan, middle fan and outer fan subfacies. The inner fan is mainly composed of slumping sediments and debris flow. The middle fan is dominated by debris flow and turbidity flow sediments. The outer fan is mainly composed of turbidity flow sediments. Based on the regional geology background, the formation mechanism and the main controlling factors of the slump turbidite fan are discussed in the paper. This kind of fan is usually surrounded by dark grey and dark mudstones formed under reduction environment of the deep lake and semideep lake, and they are more easily to form the lithologic trap. So the slump turbidite fan is advantageous for oil-gas migration and accumulation and is also important target of oil and gas exploration in the steep slope belt of the faulted lake basin.关键词
黄河口凹陷/沙河街组/滑塌浊积扇/岩性圈闭Key words
Huanghekou Sag/ Shahejie Formation/ slump turbidite fan/ lithologic trap分类
能源科技引用本文复制引用
剧永涛,刘豪,辛仁臣,周心怀..黄河口凹陷西北部滑塌浊积扇沉积特征[J].西南石油大学学报（自然科学版）,2011,33(6):31-37,7.基金项目
国家科技重大专项(2008ZX05023-02). （2008ZX05023-02）
