| Genesis and Debelopment of Porosity in Carbonate Reservoirs—Fluid Inclusion Evidence |
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| 引用本文： | 覃建雄,曾允孚.Genesis and Debelopment of Porosity in Carbonate Reservoirs—Fluid Inclusion Evidence[J].中国地球化学学报,1996,15(4):364-373. |
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| 作者姓名： | 覃建雄 曾允孚 |
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| 作者单位： | ChengduInstituteofTechnology,Chengdu,610059 |
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| 摘 要： | Fluid inclusions in minerals filled in pores of reservoir rocks can be used as a good indicator of pore genesis and development so as to shed light on oil generation,migration and accumulation.The relationship between pore evolution and oil generation has been established based on fluid inclusion studies on the Lower Ordovician carbonate reservoir strata in the Ordos Baisn,Northwest China.Seven stages of porosity development can be recogmized.i.e.,the penecontemporaneous,the early and middle-late diagenetic,the supergene,the early,middle and late re-burying stages.The dissolution pores an fissures formed in the supergene and middle-late reburying stage and the structural fractures formed in the late re-burying stage constitute the major traps of oil and gas.The major phase of oil migration and accumulation took place between Late Jurassic and Cretaceous,Corresponding to the middle and late re-burying stages.The generation and accumulation of oil can be closely related to Yenshanian tectonics.
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| 关 键 词： | 流体包裹体 碳酸盐 多孔性 地球化学 沉积物 |
Genesis and development of porosity in carbonate reservoirs—Fluid inclusion evidence |
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| Qin Jianxiong,Zeng Yunfu.Genesis and development of porosity in carbonate reservoirs—Fluid inclusion evidence[J].Chinese Journal of Geochemistry,1996,15(4):364-373. |
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| Authors: | Qin Jianxiong Zeng Yunfu |
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| Institution: | (1) Chengdu Institute of Technology, 610059 Chengdu |
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| Abstract: | Fluid inclusions in minerals filled in pores of reservoir rocks can be used as a good indicator of pore genesis and development
so as to shed light on oil generation, migration and accumulation. The relationship between pore evolution and oil generation
has been established based on fluid inclusion studies on the Lower Ordovician carbonate reservoir strata in the Ordos Basin,
Northwest China. Seven stages of porosity development can be recognized, i. e., the penecontemporaneous, the early and middle-late
diagenetic, the supergene, the early, middle and late re-burying stages. The dissolution pores and fissures formed in the
supergene and middle-late re-burying stages and the structural fractures formed in the late re-burying stage constitute the
major traps of oil and gas. The major phase of oil migration and accumulation took place between Late Jurassic and Cretaceous,
corresponding to the middle and late re-burying stages. The generation and accumulation of oil can be closely related to Yenshanian
tectonics. |
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| Keywords: | fluid inclusion carbonate reservoir porosity genesis and development application of fluid inclusion |
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