石油钻采工艺2025，Vol.47Issue(4)：489-499,11.DOI:10.13639/j.odpt.202501032
考虑宏微观地质体属性提升盐穴储气库址优选准确率
Improving the accuracy of salt cavern gas storage site selection by considering macro-and micro-scale geologic body attributes
摘要
Abstract
To overcome the high misclassification rates of storage-class designation(traditional methods achieving<60%accuracy)and incomplete coverage of evaluation criteria encountered in current salt cavern gas storage site selection evaluation schemes,a multi-indicator assessment system was constructed.This system comprises six macroscopic geological variables---rock salt-bed burial depth,halite-bearing formation thickness,salinity(soluble fraction),NaCl content,gas-storage capacity,and interbed thickness—and four microscopic geologic parameters---fracture toughness of salt,caprock permeability,caprock porosity,and rock-salt triaxial strength.By macroscopically analyzing salt-deposit structure,fault systems,and caprock sealing integrity,and by microscopically characterizing the physicochemical and mechanical properties of target halite,the Analytic Hierarchy Process(AHP)was employed to assign criterion weights.Coupled with a grey-target model that computes the comprehensive target-center distance(TCD)for each candidate site,this approach effectively resolves the limitations of scant or incomplete criteria and low classification accuracy inherent to conventional site-selection practices.Results indicate that Jintan salt cavern,exhibiting the minimum TCD(0.45),emerges as the optimal site,and its storage-class designation achieves 100%concordance with the actual construction sequence.The proposed methodology furnishes a quantitative decision-support tool for pre-feasibility SCGS siting,offering significant engineering guidance for the rational exploitation of halite resources and the efficient,integrated utilization of salt caverns.关键词
盐穴储气库/库址优选/多指标评价/层次分析法/灰靶模型/靶心距Key words
salt cavern gas storage/site selection/multi-indicator assessment/analytic hierarchy process/grey target model/target center distance分类
能源科技引用本文复制引用
包宏亮,刘楠楠,彭浩平..考虑宏微观地质体属性提升盐穴储气库址优选准确率[J].石油钻采工艺,2025,47(4):489-499,11.基金项目
江苏长江地质勘查院科研项目"盐穴储库建设的地质保障技术研究"(编号:ZMKJ-2023-JBGS07-04). （编号:ZMKJ-2023-JBGS07-04）
