海洋地质前沿2025，Vol.41Issue(7)：89-98,10.DOI:10.16028/j.1009-2722.2024.136
珠江口盆地陆丰13洼陡坡带构造分段差异性与油气成藏模式
Structural evolution difference and hydrocarbon accumulation model of steep slope zone in Lufeng 13 Sag of the Pearl River Mouth Basin
摘要
Abstract
Lufeng 13 Sag is one of the main hydrocarbon rich basins in the Zhuyi Depression.However,commer-cial oil and gas discoveries are concentrated in the slope zone and central anticline zone of the depression only,making it particularly urgent to expand the exploration into steep slope zones.Based on the three-dimensional seismic interpretation and structural analysis of the research area,the structural style of the steep slope zone in Lufeng 13 Sag was dissected as a whole,revealing the segmented and staged evolution characteristics of the steep slope zone.The steep slope zone was divided into three structural types of inheritance,transformation,and migra-tion,as well as six structural styles of single fault inheritance,double fault inheritance,migration,slip transforma-tion,bottom invasion transformation,and structural transformation.Based on the quantitative analysis of the seg-mented fault activity in the main control zone of the research area,an approach was proposed to construct a spati-otemporal framework for complex steep slope zones with"dynamic and static,steep and gentle"structures.The spatiotemporal evolution characteristics of each section of the steep slope zone were clarified,and the spatiotem-poral distribution characteristics of the Paleogene large-scale sand transport in the steep slope zone were clarified from the source.Finally,three exploration favorable areas in the steep slope zone were selected and their oil and gas accumulation patterns were predicted.The above understanding provided a reference and guidance for oil and gas exploration in the steep slope zone of the Lufeng 13 Sag.关键词
陆丰13洼/陡坡带/横向差异演化/规模输砂/勘探有利区Key words
Lufeng 13 Sag/steep slope zone/differential evolution/large-scale sand transport/profitable explor-ation areas分类
海洋科学引用本文复制引用
陈玲玲,肖张波,钟锴,易浩,张志伟,赵越,边利豪..珠江口盆地陆丰13洼陡坡带构造分段差异性与油气成藏模式[J].海洋地质前沿,2025,41(7):89-98,10.基金项目
中海石油(中国)有限公司生产性科研项目(CCL2023SZPS0055) （中国）
