Characteristics of dynamic equilibrium for natural gas migration and accumulation of the gas field in the center of the Ordos Basin |
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Authors: | Shisheng Hao Yaobin Gao Zhilong Huang |
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Institution: | (1) University of Petroleum, 100083 Beijing, China |
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Abstract: | The gas field in the center of Ordos Basin has been conventionally considered as a large gas pool with thin reservoirs. However,
lots of phenomena contrary to this concept occur in the exploration and production process. It is proposed that the gas field
is composed of many small lithological gas pools, sourced from and reservoired in the same Ordovician formation which is an
underpressured fluid compartment. A dynamic equilibrium moldel of natural gas migration and accumulation has been developed
to illustrate the formation mechanism of these gas pools. |
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Keywords: | gas fluid compartment forming mode of pool |
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