石臼坨凸起新近系岩性圈闭识别与刻画关键技术  

Research on the key technology of identification and description for iithologic traps in Neogene,Shijiutuo uplift in Bohai

作　　者：揣媛媛 王德英 于海波 杨海风 王国强 

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300452

出　　处：《地球物理学进展》2013年第1期365-372,共8页Progress in Geophysics

基　　金：国家重大科技专项项目<近海隐蔽油气藏勘探技术>(2008ZX05023-002)资助

摘　　要：规模性的区域岩性勘探要求高精度、高时效的岩性圈闭识别与刻画.对石臼坨凸起新近系明下段进行层序地层划分,建立层序地层格架,分析体系域内沉积砂体的发育规律,明确砂体的地质-地球物理响应关系.在此基础上,提出了适用于凸起区的岩性圈闭识别与刻画配套技术:基于地震属性提取的定性识别技术和基于地震多属反演的定量评价技术,实现了层序格架下岩性圈闭的快速、精细刻画.经钻井证实,该技术系列在凸起区滚动勘探中取得了很好的应用效果,钻探地质成功率达到100%,再发现一个新的亿吨级油田.Scale lithological exploration requires high accuracy and timeliness of lithologic traps to identify and description. Based on the sequence stratigraphic theory , the sequence in the lower Neogene Minghuazhen formation in the Shijiutuo Uplift is classified, the strata framework of sequence is defined and stabled, the distribution laws of sedimentary sandbody is analyzed and geological-geophysical response relationship of sandbody is also revealed. Identification and description technology for lithologic traps realizes fast and precise sandbody characterization, including qualitative appraising technique of identifying lithologic traps by seismic attribute and quantitative appraising technique of lithologic traps by seismic multi-attributes inversion. Good application results achieved in the lithological exploration of shjiutuo Uplift, geological successful rate of 100%, and the discovery of a new one hundred million ton oilfield.

关 键 词：石臼坨凸起 岩性圈闭 层序地层 频谱分析 多属性反演 

分 类 号：P631[天文地球—地质矿产勘探]