| Major factors controlling the formation of middle and large marine carbonate stratigraphic fields |
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| 作者单位： | ZOU CaiNeng（Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China） ;
TAO ShiZhen（Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China） ; |
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| 基金项目： | the Petrochina’s Project (Grant No. 06-01A-01-01)，the Petrochina Middle-Youth Innovation Funds (Grant Nos. 10100042kt96 and 07-06D-01-04-01-03) |
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| 摘 要： | Marine carbonate oil and gas fields have become an important exploration area in China and even across the world. Their formation, distribution and enrichment are special owing to the complexity of the deposition, diagenesis and accumulation, which is caused by the multiplicity of the carbonate depositional environments and facies, huge extensions of formation time and burial depth, complication of diagenetic evolution, heterogeneity as well as the development of pores, caves and fractures affected by various factors. Oil and gas accumulations in carbonate rocks are not strictly controlled by the second-order structure belt. Most of them, under certain structural settings, are controlled by sedimentary diagenesis and its favorable facies. The hydrocarbon reservoir type is predominantly stratigraphic. Based on the worldwide researches of carbonate fields, the paper concludes that 7 main factors control the formation and distribution of middle-large marine carbonate stratigraphic fields.
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Major factors controlling the formation of middle and large marine carbonate stratigraphic fields |
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| Authors: | ZOU CaiNeng TAO ShiZhen |
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| Abstract: | Marine carbonate oil and gas fields have become an important exploration area in China and even across the world. Their formation, distribution and enrichment are special owing to the complexity of the deposition, diagenesis and accumulation, which is caused by the multiplicity of the carbonate depositional environments and facies, huge extensions of formation time and burial depth, complication of diagenetic evolution, heterogeneity as well as the development of pores, caves and fractures affected by various factors. Oil and gas accumulations in carbonate rocks are not strictly controlled by the second-order structure belt. Most of them, under certain structural settings, are controlled by sedimentary diagenesis and its favorable facies. The hydrocarbon reservoir type is predominantly stratigraphic. Based on the worldwide researches of carbonate fields, the paper concludes that 7 main factors control the formation and distribution of middle-large marine carbonate stratigraphic fields. |
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| Keywords: | carbonates stratigraphic reservoir accumulation condition main controlling factors |
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