摘要
南海北部深水盆地与浅水陆架区一样,新生代均处于南海北部准被动大陆边缘的地球动力学环境,具有北部大陆边缘拉张裂陷的基本构造地质属性。深水盆地油气运聚成藏的基本地质条件亦与浅水区类似,但由于陆坡深水区凹陷裂陷更深、沉积充填规模更大,因此,烃源岩发育且展布规模更大,进而为深水油气形成奠定了雄厚的烃源物质基础。本文基于深水区少井无井、地质资料缺乏的现状,借鉴浅水区烃源岩地质地球化学特点及评价参数,依据跨越深水区地震剖面层序地层追踪解释及油气地质综合研究,重点对深水盆地烃源岩进行早期预测与评价,同时亦对其油气资源潜力进行初步分析。
Basic similar to those the dimensions geological conditions for the migration and accumulation model of the deep marine basin are of the shallow-water continental shelf; nevertheless, the deeper the sag and fractures, the bigger of the deposits and infillings, and hence the dimensions of the source rocks in the deep marine basin are larger and can lay an abundant source foundation for deep water oil and gas. In view of insufficient weU logging data and shortage of geological information for the deep water area, the authors placed the emphasis on water and the evaluation parameters in combination with the interpretation of the sequence stratigraphic data across the deep water and the integrated research on petroleum and gas.
出处
《中国地质》
CAS
CSCD
北大核心
2009年第2期404-416,共13页
Geology in China
基金
中国科学院知识创新工程重要方向项目(kzcx2-yw-203-2)
国家重点基础研究发展计划(2007CB41170501)联合资助。
关键词
南海北部深水盆地
成藏地质条件
烃源岩特征
油气资源潜力
早期评价
deep water basin in the north of the South source rock characteristics
petroleum and gas potential
China Sea
geological conditions for hydrocarbon early-stage prediction filling
