天然气地球科学 ›› 2007, Vol. 18 ›› Issue (6): 869–874.doi: 10.11764/j.issn.1672-1926.2007.06.869

• 天然气地质学 • 上一篇    下一篇

东非地区沉积盆地油气潜力浅析

张可宝1,2;史卜庆2,3;徐志强2;童晓光2;李志2;窦立荣2;潘校华2   

  1. (1.中国地质大学(北京),北京 100083;2.中国石油天然气勘探开发公司,北京 100034;3.中国石油勘探开发研究院,北京 100083)
  • 收稿日期:2007-06-11 修回日期:2007-10-30 出版日期:2007-12-10 发布日期:2008-06-20
  • 通讯作者: 张可宝zhkeb@petrochina.com.cn. E-mail:zhkeb@petrochina.com.cn.
  • 作者简介:张可宝(1966-),男,山东广饶人,高级工程师,在读博士,从事油田开发地质综合研究.

A STUDY ON PETROLEUM GEOLOGY AND HYDROCARBON POTENTIAL IN EASTERN AFRICA

ZHANG Ke-bao 1,2; SHI Bu-qing 2,3; XU Zhi-qiang2; TONG Xiao-guang2; LI Zhi2; DOU Li-rong2;PAN Xiao-hua2   

  1. (1. China University of Geosciences (Beijing), Beijing 100083, China; 2. CNODC Research Center, Beijing 100034, China;3. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China)
  • Received:2007-06-11 Revised:2007-10-30 Online:2007-12-10 Published:2008-06-20

摘要:

东非地区发育众多克拉通内陆裂谷和被动大陆边缘盆地,但对其勘探程度一直较低,也未发现大的油气田。随着世界对油气资源需求的日益增加,东非将成为未来国际石油勘探的重要地区。调研了大量区域地质和油气地质资料,认为东非地区沉积盆地是在前寒武系基底上发育起来的古生代、中生代和新生代复合—叠合盆地,总体上具有古生界Karoo群生气、中生界发育有利成藏组合、新生界盆地不利于油气保存等特点;保存较完整的Karoo群下部成藏组合、索马里—莫桑比克沿海中—新生代盆地、后期构造较为稳定的第三纪裂谷、与苏丹和红海相邻的东非沉积盆地是勘探或评价的潜在目标和地区。

关键词: 东非, 裂谷, 烃源岩, 天然气, 火山岩, 资源潜力

Abstract:

Multiple intra-Craton rift and passive marginal sedimentary basins are developed in eastern Africa. Since the exploration degree was very low, only several natural gas fields were discovered. With the increasing demand for hydrocarbon all over the world, eastern Africa will be the new important area for petroleum exploration and development. Based on studies of regional geology and petroleum geology in eastern Africa, this paper concludes that these basins are composite basins that were developed on the Cambrian base during Tertiary. Several basic characteristics of petroleum geology are generating gas in the Karoo group of Paleozoic, generating oil in rock of Mesozoic and poor preservation in the basins of Cenozoic. The potential exploration and evaluation targets are reservoir groups below the Karoo Group, middle Cenozoic basins along the seashore of Somalia Mozambique, Tertiary rift basins, and sedimentary basins bordering on Sudan and Red Sea.

Key words: Eastern Africa, Rift, Source rocks: Natural gas, Volcanic rocks, Hydrocarbon potential.

中图分类号: 

  • TE122

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