摘要
西湖凹陷中央背斜带中段最大的背斜构造-Y构造多年来勘探一直处于停滞状态。该文通过对Y构造失利井Y1井、Y4井以及Y2井的分析,从异常高压、包裹体、自生伊利石、碳同位素以及物性、岩相资料中,再次梳理了各种资料中关于诸成藏要素的相关性,重新认识Y构造的疏导体系、油气充注史、成藏期、流体势等。研究结果认为:Y构造西侧逆大断层下降盘对于油气成藏最为有利。
Y structure is the largest anticline structure in the middle of the Xihu Sag, while the exploration of Y structure has been in a stagnant state for many years. Through the analysis of abnormal high pressure, inclusions, authigenic illite, carbon isotope, physical properties and lithofacies of the failure wells Y1, Y4 and Y2 in Y structure, we sorted out the relevance of the various elements of hydrocarbon accumulation and re-understand the hydrocarbon migration pathway, hydrocarbon filling history, accumulation period and the fluid potential of the Y structure. The study shows that the descending plate of the large reverse fault on the west side of the Y structure is the most favorable for hydrocarbon accumulation.
作者
黄龙泽
沈珊
严涛
HUANG Longze;SHEN Shan;YAN Tao(Institute of Exploration and Development,SINOPEC Shanghai Offshore Oil&Gas Company,Shanghai 200120,China;SINOPEC Shanghai Offshore Oil&Gas Company,Shanghai 200120,China)
出处
《海洋石油》
CAS
2021年第3期8-15,26,共9页
Offshore Oil
关键词
成藏系统
Y构造
西湖凹陷
accumulation system
Y structure
Xihu Sag
作者简介
第一作者:黄龙泽,男,1982年生,硕士,高级工程师,2009年毕业于中国海洋大学地球探测与信息技术专业,现从事海洋油气勘探研究工作。E-mail:huanglongze.shhy@sinopec.com。
