中国石油勘探 ›› 2013, Vol. 18 ›› Issue (4): 58-67.

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南亚地区油气地质综合研究与区域优选

刘铁树,常迈,贾怀存,李学杰,万玲,潘继平   

  1. 中海石油研究中心;广州海洋地质调查局;国土资源部油气资源战略研究中心
  • 出版日期:2013-08-15 发布日期:2013-08-15
  • 基金资助:
    国土资源部项目“南亚及孟加拉湾地区油气地质综合研究与区域优选”(GT-YQ-QQ-2008-1-03)

Petroleum Geology Research and Favorable Area Optimization of South Asia

Liu Tieshu,Chang Mai,Jia Huaicun,Li Xuejie,Wan Ling and Pan Jiping   

  1. Liu Tieshu;Chang Mai;Jia Huaicun;Li Xuejie;Wan Ling;Pan Jiping;CNOOC Research Institute;Guangzhou Marine Geological Survey;Hydrocarbon Strategic Research Center of Ministry of Land and Resources;
  • Online:2013-08-15 Published:2013-08-15

摘要: 南亚地区经历冈瓦纳陆内裂陷、冈瓦纳大陆破裂与被动陆缘演化和印度板块与欧亚板块碰撞阶段,形成四大类沉积盆地,包括周缘前陆盆地、被动大陆边缘盆地、大陆裂谷盆地和克拉通盆地。含油气盆地主要分布在印度大陆的东缘和西缘,具有良好的油气地质条件,在层位上集中分布在古近系、新近系和白垩系。盆地类型与演化决定了油气富集规模和时代,有效烃源岩分布控制了油气田的平面分布,储盖组合控制了油气的纵向分布。根据盆地类型和规模、盆地石油地质条件、资源总量和盆地勘探程度等指标对南亚地区沉积盆地进行综合评价,优选出Bombay盆地、Indus盆地、Krishna—Godavari盆地、Bengal盆地、Assam盆地、Cambay盆地、Cauvery盆地、Potwar盆地等有利沉积盆地。

关键词: 南亚地区, 油气地质, 油气资源, 战略选区

Abstract: South Asia underwent three stages including Gondwana intercontinental rifting, Gondwana passive margin after continental breakup and collision between Indian plate and Eurasian plate and formed four types of basin that is peripheral foreland basin, passive continental margin basin, continental rift basin and cratonic basin. Petroliferous basins concentrate along the eastern and western margin of Indian continent with good petroleum geology. Oil and gas accumulates in the Paleogene, Neogene and Cretaceous. Scale and horizon of oil/gas reserves are determined by basin type and evolution. Horizontal hydrocarbon distribution is controlled by distribution of effective source rocks. Vertical hydrocarbon distribution is controlled by reservoir-cap rock assemblage. Based on comprehensive evaluation by indices such as basin type and scale, petroleum geology, resource quantity and exploratory degree, Bombay Basin, Indus Basin, Krishna-Godavari Basin, Bengal Basin, Assam Basin, Cambay Basin, Cauvery Basin, and Potwar Basin are optimized as favorable ones for hydrocarbon exploration in South Asia

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