摘要
在地震资料构造解释的基础上,利用层拉平技术、厚度法等方法,开展构造演化分析,明确了:受荆河镇组沉积末期喜山运动Ⅱ幕影响,研究区内东北部地层整体抬升,地层遭受强烈剥蚀,从而形成研究区内不整合面T1,同时该阶段与区域排烃期次匹配,是油气成藏的重要时期;受广华寺组沉积时期的喜山运动Ⅲ幕的挤压作用影响,早期形成的油气藏遭到破坏,但是同时期发育的挤压背斜构造也为油气重新聚集提供了场所,构造运动对油气藏的重调节作用明显。
On the basis of the structural interpretation of seismic data,the method of layer flattening and thickness method is used to carry out structural evolution analysis. The following conclusions are clarified: Influenced by the Himalayan Movement Ⅱ at the end of sedimentary period of Jinghezhen Formation,the strata in the northeastern part of the study area were lifted up and the stratum was strongly denuded. Thus,it is forming the unconformity T1 in the study area. At the same time,this stage is matched with the regional hydrocarbon expulsion period,which is an important period for hydrocarbon accumulation. Influenced by the extrusion of the Himalayan Movement Ⅲ in the sedimentary period of Guanghuasi Formation,the early formation of the reservoirs were destroyed,but the developed anticline structure at the same time also provided a place for hydrocarbon re-aggregation. The effect of tectonic movement on re-adjusting reservoirs is obvious.
作者
李一超
杨飞
徐天鑫
夏文豪
LI Yichao;YANG Fei;XU Tianxin;XIA Wenhao(School of Geophysics and Petroleum Resources,Yangtze University,Wuhan,Hubei 430100,China)
出处
《中国锰业》
2019年第6期48-52,共5页
China Manganese Industry
基金
中国地质调查局项目(1211302108020)
关键词
江陵凹陷
构造演化
油气成藏
Jiangling sag
Tectonic evolution
Hydrocarbon accumulation
