歧口凹陷古近系沙一段烃源岩成烃环境与沉积有机相研究  

Studies on hydrocarbon source rocks environment and sedimentary organic facies for Paleogene Sha 1 member,Qikou sag

作　　者：于超[1] 孙超囡[1] 

机构地区：[1]中国石油大港油田公司勘探开发研究院

出　　处：《录井工程》2015年第4期70-73,80,共5页Mud Logging Engineering

基　　金：中国石油天然气股份公司重大专项"歧口富油凹陷大油气田勘探及综合配套技术研究"(编号:2008E-030603)

摘　　要：为了提升对歧口凹陷古近系优质烃源岩分布规律的认识,综合物源-水动力条件、古生物、有机质类型、沉积介质条件等因素开展歧口凹陷沙一段成烃环境研究,划分出6种沉积有机相类型,其中半咸化湖成-强还原-藻源相、远源-开阔湖成-还原-藻源植源相及近源-淡水-还原植源-藻源相带烃源岩中保存的有机质佳、生烃潜力大,可定性预测为油气资源潜力区。建议将3种相带分别所对应的歧北-歧南斜坡区、歧口主凹区及板桥地区作为沙一段勘探部署的重点靶区。In order to enhance the recognition for the distribution law of high quality hydrocarbon source rock in Paleogene Qikou sag,the authors summarized provenance,hydrodynamic conditions,paleontology,organic matter type,deposition medium conditions to carry out the hydrocarbon environmental studies for Sha 1 member in Qikou sag,divided into 6types of sedimentary organic facies,organic matter preserved in 3 facies were good and had large potential hydrocarbon generation,and can be qualitatively predicted as the oil and gas resource potential area.It recommended to make the corresponding areas of Qibei-Qinan slope,Qikou main sag and Banqiao area as the key targets for Sha 1 member exploration and deployment.

关 键 词：沉积有机相 成烃环境研究 地球化学特征 生烃潜力区 

分 类 号：TE132.1[石油与天然气工程—油气勘探]