北加蓬次盆油气成藏主控因素分析及勘探潜力评价

郭念发

doi:10.11781/sysydz201502194

北加蓬次盆油气成藏主控因素分析及勘探潜力评价

doi: 10.11781/sysydz201502194

郭念发

中国石化国际石油勘探开发公司, 北京 100083

详细信息

作者简介:
郭念发(1956—),男,高级工程师,从事海外油气勘探。E-mail:nfguo.sipc@sinopec.com。

中图分类号: TE122.3
计量
- 文章访问数: 964
- HTML全文浏览量: 80
- PDF下载量: 1251
- 被引次数: 0
出版历程
- 收稿日期: 2014-04-11
- 修回日期: 2015-02-05
- 刊出日期: 2015-03-28

Main controlling factors and exploration potential of hydrocarbon reservoirs in North Gabon sub-Basin

Guo Nianfa

SINOPEC International Petroleum Exploration and Production Corporation, Beijing 100083, China

摘要

摘要: 北加蓬次盆是一个裂谷盆地与被动大陆边缘盆地叠加形成的中、新生代复合盆地,油气成藏明显受构造运动、沉积环境、盐岩变形等地质因素的控制。盆地东部因抬升剥蚀而遭受不同程度的破坏,烃源岩及油气藏没有很好地保存,导致了东部构造带和西部构造带油气资源贫富差异较大。沉积环境影响储层发育,上白垩统浊积扇砂体和三角洲砂体是盐上层系最重要的储层,油气圈闭的形成与盐岩构造活动密切相关,圈闭类型丰富多彩。根据盐上层系烃源岩和浊积砂体储层分布等地质规律研究,北加蓬次盆大西洋深水斜坡带的中南部处于Azile组主力烃源岩分布区,油气源供给条件优越,储层发育,油气成藏条件得天独厚,是盆地油气勘探最有利的地区。
- 油气成藏 /
- 主控因素 /
- 勘探潜力 /
- 北加蓬次盆
Abstract: The North Gabon sub-Basin is a Mesozoic-Cenozoic rift and divergent margin basin. The oil and gas reservoirs in the basin were controlled by tectonic movements, sedimentary environments and salt structures. The east of the basin was eroded due to regional uplift, and source rocks and hydrocarbon reservoirs were destroyed, leading to a significant difference of hydrocarbon potential between the east and the west tectonic belts. Sedimentary environments impacted reservoirs. The Upper Cretaceous turbidity sandstones and offshore sandstones were important reservoirs for the post salt layers. Various traps developed, which were related to salt structure activities. Based on research of the turbidity sandstones and offshore sandstones of the post-salt layers, the main hydrocarbon reservoirs of the North Gabon sub-Basin mainly lie on the middle-south, deep ocean slope belt, which is the center of the major source rocks of the Azile Formation. Thanks to favorable sourcing and reserving conditions, the middle-south, deep ocean slope belthas considerable hydrocarbon prospects.
- hydrocarbon accumulation /
- controlling factor /
- exploration potential /
- North Gabon sub-Basin

HTML全文

参考文献(10)

[1]	Edwards J D,Santogrossi P A.离散或被动大陆边缘盆地[M].梁绍全,梁红,译.北京:石油工业出版社,2000. Edwards JD,Santogrossi PA.Divergent/Passive margin basins[M].Liang Shaoquan,Liang Hong,Trans. Beijing:Petroleum Industry Press,2000.
[2]	李国玉,金之钧.世界含油气盆地图集[M].北京:石油工业出版社,2005. Li Guoyu,Jin Zhijun.World atlas of oil and gas basins[M].Beijing:Petroleum Industry Press,2005.
[3]	李国玉.世界石油地质[M].北京:石油工业出版社,2003. Li Guoyu.World petroleum geology[M].Beijing:Petroleum Industry Press,2003.
[4]	李彦忱,郭念发.非洲加蓬海岸盆地北加蓬次盆G4-188区块油气成藏分析[J].中国石油勘探,2008(3):55-59. Li Yanchen,Guo Nianfa.Hydrocarbon accumulation analysis of G4-188 block in North Gabon Sub-basin of Gabon Coastal Basins[J].China Petroleum Exploration,2008(3):55-59.
[5]	林卫东,陈文学,熊利平,等.西非海岸盆地油气成藏主控因素及勘探潜力[J].石油实验地质,2008,30(5):450-455. Lin Wendong,Chen Wenxue,Xiong Liping,et al.Pool forming constrains and the hydrocarbon exploration potential of the west Africa coast Basins[J].Petroleum Geology & Experiment,2008,30(5):450-455.
[6]	刘深艳,胡孝林,常迈.西非加蓬海岸盆地盐岩特征及其石油地质意义[J].海洋石油,2011,31(3):1-10. Liu Shenyan,Hu Xiaolin,Chang Mai.Characteristics of salt of Gabon coastal basin in West Africa:implications for petroleum exploration[J].Ocean Petroleum,2011,31(3):1-10.
[7]	刘延莉,邱春光,熊利平.西非加蓬盆地沉积特征及油气成藏规律研究[J].石油实验地质,2008,30(4):352-356,362. Liu Yanli,Qiu Chunguang,Xiong Liping.Study of the sedimen-tary characteristics and hydrocarbon accumulation rules for the Gabon basin,west Africa[J].Petroleum Geology & Experiment,2008,30(4):352-356,362.
[8]	童晓光,关增淼.世界石油勘探开发图集:非洲地区分册[M].北京:石油工业出版社,2002. Tong Xiaoguang,Guan Zengmiao.World atlas of oil and gas exploration and development:Africa part[M].Beijing:Petroleum Industry Press,2002.
[9]	童晓光.世界石油勘探开发图集[M].北京:石油工业出版社,2000. Tong Xiaoguang.World atlas of oil and gas exploration and deve-lopment[M].Beijing:Petroleum Industry Press,2000.
[10]	熊利平,王骏,殷进垠,等.西非构造演化及其对油气成藏的控制作用[J].石油与天然气地质,2005,25(6):641-646. Xiong Liping,Wang Jun,Yin Jinyin,et al.Tectonic evolution and its control on hydrocarbon accumulation in West Africa[J].Oil and Gas Geology,2005,25(6):641-646.