济阳坳陷东营凹陷古近系隐蔽油气藏勘探实践及展望  

Exploration practice and prospect of Paleogene subtle oil and gas reservoirs in Dongying sag,Jiyang depression

作　　者：王永诗[1] 邱贻博 茆书巍 郝雪峰 高志强 WANG Yongshi;QIU Yibo;MAO Shuwei;HAO Xuefeng;GAO Zhiqiang(Shengli Oilfield Company,Sinopec,Dongying,Shandong 257000,China;Research Institute of Exploration and Development,Shengli Oilfield Company,Sinopec,Dongying,Shandong 257015,China)

机构地区：[1]中国石油化工股份有限公司胜利油田分公司,山东东营257000 [2]中国石油化工股份有限公司胜利油田分公司勘探开发研究院,山东东营257015

出　　处：《中国海上油气》2023年第3期12-24,共13页China Offshore Oil and Gas

基　　金：中国石化科技攻关项目“济阳东部深层砂砾岩油气富集机制与勘探方向(编号:P21034-1)”部分研究成果。

摘　　要：东营凹陷经过60多年的勘探与开发,发现了盐家、滨南、纯化、博兴和金家等34个油田,截至2022年累计探明储量26亿吨,对中国能源供给与安全起到了举足轻重的作用。随着东营凹陷勘探程度不断提高,勘探对象已由构造油气藏向复杂隐蔽油气藏转变。基于隐蔽油气藏勘探理论与实践,对东营凹陷砂砾岩、滩坝砂及浊积岩等各类储集体发育控制因素及展布规律、油气成藏分布特征进行了分析总结,提出了油气成藏相似性、有序性、差异性等理论认识,极大推动了隐蔽油气藏的精细勘探。指出构造转换带、沉积结合部及地层突变带是现阶段重点勘探领域和方向,加强其综合研究是隐蔽油气藏勘探成功和规模增储的关键。紧密结合勘探实践,综合运用多手段、多学科、多方法是突破隐蔽油气藏勘探瓶颈的重要法宝,也将进一步指导隐蔽油气藏精细化和效益化勘探。Dongying sag has experienced more than 60 years of exploration and development,during which 34 oilfields such as Yanjia,Binnan,Chunhua,Boxing and Jinjia oilfields have been discovered,and accumulated proved reserves of 2,600 million tons have been reported until 2022.It has played a decisive role in China’s energy supply and security.With the enhanced exploration and development of Dongying sag,the exploration targets have changed from structural reservoirs to complex subtle reservoirs.Based on the exploration theory of subtle reservoir,this paper carries out an exploration practice analysis of lithologic reservoirs such as glutenite,beach bar sand and turbidite in Dongying sag,reveals the development controlling factors and distribution law of each type of reservoir,and clarifies the distribution characteristics of oil and gas accumulation,which further enriches the theories of similarity,order and difference of oil and gas accumulation,and greatly promotes fine exploration of subtle oil and gas reservoirs.Tectonic transition zone,sedimentary junction and stratigraphic abrupt change zone are the key exploration areas and directions at present stage,so strengthening comprehensive study of these zones is the key to successful exploration and large-scale reserve increase of subtle oil and gas reservoirs.Close combination with exploration practice and comprehensive use of multi-means,multi-disciplines and multi-methods is a vital key to break through the bottleneck of subtle oil and gas reservoir exploration,and will further guide the refined and profitable exploration of subtle oil and gas reservoirs.

关 键 词：隐蔽油气藏 砂砾岩 滩坝砂 浊积岩 勘探方向 东营凹陷 

分 类 号：TE122.1[石油与天然气工程—油气勘探]