摘要
鄂尔多斯盆地中部气田的开发认识到奥陶系马家沟组的顶面风化壳有利于油气的聚集与储存.在前人地质认识的基础上,利用印模法与残厚法开展延长气田奥陶系马家沟组古地貌研究,认识到其古地貌整体呈西高东低的特征,为延长气田实现古生界马家沟组天然气突破提供理论支撑.
During the development of gas field in the middle of Ordos basin,it is recognized that the weathering crust on the top of Majiagou formation of Ordovician is conducive to the accumulation and storage of oil and gas.In this paper,on the basis of previous geological knowledge,the paleogeomorphology of Majiagou formation of Ordovician in Yanchang gas field is studied by using the method of impression and residual thickness,and it is recognized that the paleogeomorphology is generally high in the west and low in the east,which provides theoretical support for Yanchang gas field to achieve the breakthrough of natural gas in Majiagou formation of paleozoic.
作者
牛海龙
NIU Hai-long(Southern District Command of Oil and Gas Exploration Company of Shanxi Yanchang Petroleum(Group)Company Limited,Yan’an 716000,China)
出处
《西安文理学院学报（自然科学版）》
2020年第1期86-89,94,共5页
Journal of Xi’an University(Natural Science Edition)
关键词
奥陶系马家沟组
印模法
残厚法
古地貌
西高东低
Majiagou formation of Ordovician
impression method
residual thickness method
paleogeomorphology
high in the west and low in the east
