特种油气藏2018，Vol.25Issue(1)：36-40,5.DOI:10.3969/j.issn.1006-6535.2018.01.008
尼日尔三角洲盆地深水区褶皱过渡带油气成藏特征
Hydrocarbon Accumulation of the Deepwater Fold Transition Zone in Niger Delta Basin
摘要
Abstract
The source-rock analysis in Niger delta basin is seriously limited since there is no well drilled into mature source-rock in the deepwater area. Based on a large amount of primary drilling,production and seismic data,the regional structure and sedimentation analyses are combined to research the fault system and hydrocarbon accumula-tion pattern in the fold transition zone. The GOR inversion is used to predict the source-rock position. It is conclu-ded that the hydrocarbon mainly enriches in the part with well-developed structures along the lateral direction and in the shallow sequence along the longitudinal direction and structure is considered as the key controlling-factor of hydrocarbon accumulation. In addition,5 hydrocarbon accumulation patterns are established,including"thrust+mud-diapir+normal-fault"thrust upper-wall accumulation,"mud-diapir+normal-fault"accumulation,"mud-diapir+thrust+normal"thrust upper-wall accumulation,"thrust+mud-diapir+normal-fault"lower-wall accumula-tion and"thrust"thrust upper-wall accumulation. This research could provide certain guidance to the hydrocarbon exploration in the structures related to mud diapir.关键词
成藏模式/成藏主控因素/气油比反推法/泥拱构造/褶皱过渡带/尼日尔三角洲盆地Key words
hydrocarbon accumulation pattern/key controlling-factor of hydrocarbon accumulation/GOR inver-sion/mud diapir structure/fold transition zone/Niger delta basin分类
能源科技引用本文复制引用
马金苹,范洪耀,张翼,史瑞其,董朔朋..尼日尔三角洲盆地深水区褶皱过渡带油气成藏特征[J].特种油气藏,2018,25(1):36-40,5.基金项目
国家"十三五"重大专项"非洲重点区油气勘探潜力综合评价"(2017ZX05032002) （2017ZX05032002）
中海油(中国)有限公司综合科研课题"西非被动大陆边缘盆地海相烃源岩评价方法研究"(YXKY-2015-ZY-07) （中国）
