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“Extreme utilization” theory and practice in gas storages with complex geological conditions 被引量:1
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作者 MA Xinhua ZHENG Dewen +1 位作者 DING Guosheng WANG Jieming 《Petroleum Exploration and Development》 SCIE 2023年第2期419-432,共14页
Based on more than 20-year operation of gas storages with complex geological conditions and a series of research findings, the pressure-bearing dynamics mechanism of geological body is revealed. With the discovery of ... Based on more than 20-year operation of gas storages with complex geological conditions and a series of research findings, the pressure-bearing dynamics mechanism of geological body is revealed. With the discovery of gas-water flowing law of multi-cycle relative permeability hysteresis and differential utilization in zones, the extreme utilization theory targeting at the maximum amount of stored gas, maximum injection-production capacity and maximum efficiency in space utilization is proposed to support the three-in-one evaluation method of the maximum pressure-bearing capacity of geological body, maximum well production capacity and maximum peak shaving capacity of storage space. This study realizes the full potential of gas storage(storage capacity) at maximum pressure, maximum formation-wellbore coordinate production, optimum well spacing density match with finite-time unsteady flow, and peaking shaving capacity at minimum pressure, achieving perfect balance between security and capacity. Operation in gas storages, such as Hutubi in Xinjiang, Xiangguosi in Xinan, and Shuang6 in Liaohe, proves that extreme utilization theory has promoted high quality development of gas storages in China. 展开更多
关键词 underground gas storage gas-storage geological body maximum pressure-bearing maximum well production capacity maximum peak shaving capacity extreme utilization theory multi-cycle relative permeability hysteresis
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