断陷盆地岩性勘探目标评价方法——以渤海湾盆地为例  

Evaluation methodology of lithologic exploration areas in rift basins:A case from the Bohai Bay Basin

作　　者：王玉满[1] 黄旭楠[1] 程坤芳 黄金亮[1] 

机构地区：[1]中国石油勘探开发研究院

出　　处：《石油勘探与开发》2011年第1期122-128,共7页Petroleum Exploration and Development

基　　金：中国石油天然气股份有限公司预探项目前期研究课题(000210100015)

摘　　要：以渤海湾盆地砂砾岩岩性油气藏形成和富集主控因素分析评价为基础,采用定性分析和定量评价相结合的思路,建立了断陷盆地岩性勘探目标基于构造背景、沉积环境、储集层、油源等4大主控因素的分级评价模式。在区域地质背景评价中,对断陷盆地5种构造带和3大类沉积体系进行了地质、含油性和勘探成效对比分析。在储集层评价中,引入储集层结构评价,建立了断陷盆地砂砾岩储集层结构的6种样式和评价等级。在4大主控因素分级评价基础上,结合常规勘探目标评价思路和内容,建立了断陷盆地岩性圈闭综合评价规范,此规范的建立对开展中国东部断陷盆地岩性勘探目标的评价优选具有指导意义。Based on the analysis about the main controlling factors of the formation and enrichment of lithologic hydrocarbon reservoirs of sandy conglomerate in the Bohai Bay Basin,and combined with qualitative and quantitative analysis,a classified evaluation mode was established including four factors that are tectonic setting,sedimentary environment,reservoirs and hydrocarbon source rocks.In the evaluation of geologic settings of one rift basin,the authors analyzed and compared the geologic conditions,hydrocarbon bearing and exploratory results of five types of structural zones and three types of sedimentary systems.In the reservoir evaluation,an evaluation item of the reservoir structure was added including six styles and evaluation grades.Combining the classified evaluation of the four factors with the routine analysis of exploration target areas,an evaluation standard of lithologic traps in rift basins was constructed,which is useful to evaluate lithologic targets in rift basins of eastern China.

关 键 词：渤海湾盆地 断陷盆地 岩性油气藏 沉积相 储集层结构 勘探目标评价 

分 类 号：TE122.3[石油与天然气工程—油气勘探]