| Diagenesis and Their Succession of Gas-bearing and Non-gas-bearing Reservoirs in the Sulige Gas Field of Ordos Basin, China |
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| 作者姓名： | ZHU Xiaomin LIU Chenlin ZHONG Dakang and HAN Xuefang |
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| 作者单位： | State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China |
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| 基金项目： | This project is financed by the National Key Basic Program (National 973 project, 2001CB209100, 2006CB202306). |
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| 摘 要： | Abstract: Comparisons have been made among lithology, diagenesis, and reservoir characteristics of gas-bearing and non-gas-bearing ones in the Sulige gas field of the Ordos Basin based on the laboratory analysis of thin sections, scanning electron microscope, and liquid inclusion of the reservoirs. The reservoirs of the Sulige gas field are now in the middle stage of diagenesis and have undergone compaction, cementation and dissolution. The secondary pore of the reservoir originated from the dissolution of the feldspar and tuff because of the organic acid action from the source rocks during the diagenetic middle stage. Gas-bearing reservoirs are common in soluble pore diagenetic facies of coarse detritus quartzose sandstone, whereas non-gas-bearing ones are common in tense compaction diagenetic facies of mud-bearing medium-fine detritus quartzose sandstone and residual intergranular pore diagenetic facies of mud-bearing medium-coarse detritus quartzose sandstone. The secondary pore is developed in gas-bearing reservoirs of the Sulige gas-field as the medium-coarse grain reservoirs formed in a powerful sedimentary environment and experienced strong dissolution. However, the sediments of fine grain size form the non-gas-bearing reservoirs because of less residual primary pore and secondary pore.
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| 关 键 词： | Key words: pore evolution diagenesis reservoir Sulige gas field Ordos basin |
| 收稿时间： | 2008/2/20 0:00:00 |
| 修稿时间： | 1/1/2009 12:00:00 AM |
Diagenesis and Their Succession of Gas-bearing and Non-gas-bearing Reservoirs in the Sulige Gas Field of Ordos Basin,China |
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| Authors: | ZHU Xiaomin LIU Chenlin ZHONG Dakang HAN Xuefang State Key Laboratory of Petroleum Resource Prospecting China University of Petroleum Beijing China |
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| Institution: | State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China |
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| Abstract: | Comparisons have been made among lithology, diagenesis, and reservoir characteristics of gas-bearing and non-gas-bearing ones in the Sulige gas field of the Ordos Basin based on the laboratory analysis of thin sections, scanning electron microscope, and liquid inclusion of the reservoirs. The reservoirs of the Sulige gas field are now in the middle stage of diagenesis and have undergone compaction, cementation and dissolution. The secondary pore of the reservoir originated from the dissolution of the feldsp... |
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| Keywords: | pore evolution diagenesis reservoir Sulige gas field Ordos basin |
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