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中国京津冀地区对利用含水层建设储气库有重大需求,但是利用含水层建设储气库投资大、风险高,在中国尚无先例,特别是在京津冀所处的断陷盆地中,由于地质构造复杂,建库风险更大。以京津冀地区断陷盆地含水层构造为研究对象,系统分析了圈闭、储层、盖层、断层等不同地质参数对含水层储气库的影响,选取了否定性、能力型、控制型、经济性等4个关键因素,对照法国等国外建设含水层储气库的成功经验,建立了京津冀断陷盆地建设含水层储气库圈闭目标优选的多层次、多指标综合评价体系,并运用层析分析法确定了不同指标的权重,对京津冀地区断陷盆地11个初选圈闭目标进行评价排序,优选出了大5石盒子组、孙虎孔店组、大参2奥陶系潜山等3个适宜改建地下储气库的含水层构造。文章是在国内首次开展的水层目标勘探生产实施评价基础上形成的,对于复杂地质条件下的含水层储气库选址具有一定的指导意义。
The Beijing-Tianjin-Hebei region in China is in great need of building gas reservoirs using aquifers. However, the use of aquifers to build gas reservoirs has great investment and high risks. There is no precedent in China, especially in the rift basins where Beijing, Tianjin and Hebei are located Due to the complex geological structure, the risk of building a reservoir is even greater. Taking the aquifer structure of the fault-depression basin in Beijing-Tianjin-Hebei region as the research object, this paper systematically analyzes the influence of different geological parameters such as traps, reservoirs, caprocks and faults on the aquifer gas reservoirs, selects the negative, the ability, the control Based on the successful experience of building aquifer gas reservoirs in France and abroad, this paper established a multi-level and multi-index comprehensive evaluation of the selection of trap targets for constructing aquifer gas reservoirs in the Beijing-Tianjin-Hebei faulted basin System, and the weight of different indicators was determined by using the method of analytical hierarchy. The eleven primary targets of traps in the rift basin in Beijing, Tianjin and Hebei Province were evaluated and ranked. Five stone box subgroups, Reference 2 Ordovician buried hill 3 suitable for the construction of underground aquifer aquifer structure. The article is formed on the basis of the first evaluation of the implementation of target exploration and production of aquifer in China and is of guiding significance for the site selection of aquifer gas storage under complicated geological conditions.