东海西湖凹陷玉泉构造成藏分析

Analysis of HC Accumulation in Yuquan Structure of Xihu Depression at East China Sea

杨丽娜 陈琳琳 汤健 王楠

YANG Li'na CHEN Linlin TANG Jian WANG Nan

中国石油化工股份有限公司上海海洋油气分公司研究院, 上海 200120

Institute of SINOPEC Shanghai Offshore Oil & Gas Company, Shanghai 200120, China

从玉泉构造带成藏因素出发,根据已钻圈闭的油气情况,重点探讨了烃源岩、成藏期、侧向运移等问题,并对玉泉构造花港组侧向运移的影响因素提出新的看法。认为:挤压构造中褶皱陡翼存在的剪切节理的微错断是一个容易忽视的不利因素。并从构造带平面的侧向阻断因素分析中,提出玉泉南部存在两个有利的圈闭供下一步勘探目标选择。

On the basis of the data from the drilled trap, the main controlling factors on HC accumulation in Yuquan structural belt, have been discussed in this paper, including mainly the source rock, HC accumulation time and HC lateral migration conditions, and some new opinions have been put forward about the controlling factors on lateral HC migration in Hugang formation of Yuquan structure. It is believed that the micro break of shear joints on the steep side of fold in the compressive structure is an unfavorable fac-tor, which is often ignored. Through analyzing the factors which might influence lateral HC migration in tectonic zone, two favorable prospects for future exploration in the south part of Yuquan area have been pointed out.

https://doi.org/10.3969/j.issn.1008-2336.2013.02.054