| Fluid Inclusions in the Xichang Basin and Their Applications in Oil—Gas Exploration |
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| 引用本文： | 覃建雄,李天生,等.Fluid Inclusions in the Xichang Basin and Their Applications in Oil—Gas Exploration[J].中国地球化学学报,1995,14(3):264-275. |
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| 作者姓名： | 覃建雄 李天生 |
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| 作者单位： | [1]InstituteofSedimentology,Chengdu,InstituteofTechnology,Chengdu610059 [2]ResearchInstituteofPetroleumExpl,Chengdu,InstituteofTechnology,Chengdu610059 |
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| 摘 要： | Fluid inclusions are commonly observed in various stages during the diage-netic evolution and the generation,migration and accumulation of hydrocarbons in Lower Permian carbonate rocks in the Xichang Basin, providing direct physico-chemical evidence for the process.Altogether seven stages can be recognized,ie.,the penecontemporane-ous, early and mid-late diagenetic stages, the epidiagenetic stage and the early, middle and late reburying stages.Karst and dissolution pores and structural fissures developed during the epidiagenetic and reburying stages constitute the major reservoirs for hydro-carbon accumulation.Oil generation and migration began in the early reburying stage in Late Permian time and developed to its climax in the middle reburying stage in the Triassic period, followed by extensive generation and migration of natural gases during the late stage of reburying in the Jurassic and later periods.The generation,migration and accumulation of hydrocarbons are closely related to Hercynian basalt eruption and Indosinian and Yenshanian tecto-magmatism.
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| 关 键 词： | 流体包裹体 油气勘探 西昌盆地 下二叠纪 |
Fluid inclusions in the Xichang Basin and their applications in oil-gas exploration |
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| Qin Jianxiong,Zhang Changjun,Li Tiansheng,Li Yungang.Fluid inclusions in the Xichang Basin and their applications in oil-gas exploration[J].Chinese Journal of Geochemistry,1995,14(3):264-275. |
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| Authors: | Qin Jianxiong Zhang Changjun Li Tiansheng Li Yungang |
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| Institution: | (1) Institute of Sedimentology, Chengdu Institute of Technology, 610059 Chengdu;(2) Research Institute of Petroleum Exploration and Development, Sichuan Petroleum Administration, 610051 Chengdu |
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| Abstract: | Fluid inclusions are commonly observed in various stages during the diagenetic evolution and the generation, migration and
accumulation of hydrocarbons in Lower Permian carbonate rocks in the Xichang Basin, providing direct physico-chemical evidence
for the process. Altogether seven stages can be recognized, i.e., the penecontemporaneous, early and mid-late diagenetic stages,
the epidiagenetic stage and the early, middle and late reburying stages. Karst and dissolution pores and structural fissures
developed during the epidiagenetic and reburying stages constitute the major reservoirs for hydrocarbon accumulation. Oil
generation and migration began in the early reburying stage in Late Permian time and developed to its climax in the middle
reburying stage in the Triassic period, followed by extensive generation and migration of natural gases during the late stage
of reburying in the Jurassic and later periods. The generation, migration and accumulation of hydrocarbons are closely related
to Hercynian basalt eruption and Indosinian and Yenshanian tecto-magmatism. |
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| Keywords: | fluid inclusion oil/gas exploration Xichang Basin Lower Permian application |
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