鄂尔多斯盆地富县北部本溪组天然气成藏特征及主控因素分析  

Accumulation of Natural Gas and Main Controlling Factors in Benxi Formation in the North of Fuxian County,Ordos Basin

作　　者：许璐 刘嘉祥 王润刚 Xu Lu;Liu Jiaxiang;Wang Run gang(No.4 Gas Production Factory of Yanchang Gas-field,Yanchang Petroleum(Group)Co.Ltd,Yan'an 727501;不详)

机构地区：[1]陕西延长石油(集团)有限责任公司延长气田采气四厂,陕西延安727501 [2]陕西延长石油(集团)有限责任公司延长气田研究中心,陕西延安716000

出　　处：《石化技术》2025年第3期218-220,共3页Petrochemical Industry Technology

摘　　要：富县北部本溪组发现工业气流,证实鄂尔多斯盆地南部具有十分巨大的天然气勘探潜力,但对成藏特征和主控因素认识不清,制约了下一步工作。综合利用岩心、地球物理测井、试气等资料对鄂尔多斯盆地南部富县北部本溪组天然气成藏特征、气水分布特征以及成藏主控因素进行研究,认为本溪组发育的潮坪砂岩是天然气藏形成的有利场所,天然气优先富集在砂体构造高部位。天然气分布特征与控制天然气成藏的多种因素密切相关。The discovery of commercial natural gas flow in Benxi Formation in the north of Fuxian County confirms that the south of Ordos Basin has great natural gas exploration potential,but accumulation features and main controlling factors are not clearly understood,which restricts the further research.This study is based on the data of logging curves,well testing,and core data to analyze the characteristics of natural gas accumulation,gas-water distribution laws and main controlling factors in Benxi Formation in the researched area.The research shows that the tidal-flat sandstone developed in Benxi Formation is the favorable site for the formation of natural gas reservoirs,and natural gas is preferentially enriched in the high position of the structure.

关 键 词：成藏特征 主控因素 本溪组 富县 鄂尔多斯盆地 

分 类 号：P618.13[天文地球—矿床学]