基于主客观赋权与功效系数法的储气库断层密封性评价方法

doi:10.3969/j.issn.1006-6535.2026.04.003

特种油气藏 ›› 2026, Vol. 33 ›› Issue (4): 16-22.DOI: 10.3969/j.issn.1006-6535.2026.04.003

基于主客观赋权与功效系数法的储气库断层密封性评价方法

徐海涛^1,2, 刘康¹, 肖勇², 于永², 刘晓方¹, 陈国明¹, 王成鑫¹

1.中国石油大学(华东),山东青岛 266580;
2.中国石油天然气集团有限公司发展计划部,北京 100007

收稿日期:2025-08-18 修回日期:2026-05-13 出版日期:2026-08-25 发布日期:2026-10-15
通讯作者: 刘康(1987—),男,副教授,2010年毕业于中国石油大学(华东)安全工程专业,2015年毕业于该校安全科学与工程专业,获博士学位,现从事油气安全工程、安全信息化技术方面的研究工作。
作者简介:徐海涛(1988—),男,高级工程师,2010年毕业于中国石油大学(华东)材料科学与工程专业,2013年毕业于该校安全技术及工程专业,获硕士学位,现从事油气安全工程方面的研究工作。
基金资助:
中国石油天然气集团公司科技专项“地下储气库建库理论与扩容新方法”(2023E04)

Fault sealing evaluation method for gas storage based on combined subjective-objective weighting and the efficacy coefficient method

Xu Haitao^1,2, Liu Kang¹, Xiao Yong², Yu Yong², Liu Xiaofang¹, Chen Guoming¹, Wang Chengxin¹

1. China University of Petroleum(East China),Qingdao,Shandong 266580,China;
2. Development Planning Department,China National Petroleum Corporation,Beijing 100007,China

Received:2025-08-18 Revised:2026-05-13 Online:2026-08-25 Published:2026-10-15

摘要/Abstract

摘要： 断层是枯竭油气藏型地下储气库的薄弱环节,断层密封性的影响因素多、相互影响复杂、指标权重模糊,为储气库断层密封性综合评价带来了挑战。鉴于此,提出基于“主客观赋权-功效系数法”的断层密封性综合评估方法,从断层岩性特征、环境条件、力学特征及注采制度4个方面建立断层密封性评价指标体系;运用DEMATEL法和反熵权法共同确定指标权重,减少单一方法赋权时产生的偏差;通过计算储气库断层的总功效系数,量化储气库断层密封性能等级。将该评估方法应用于渤海湾盆地某储气库,结果表明:该储气库密封等级为Ⅲ级(较好),计算结果与现场实际状况相符,此评估模型具有可行性,能够对地下储气库断层的密封性做出综合评判。该成果可为地下储气库的选址与断层密封性评价提供理论参考。

关键词: 主客观赋权, 功效系数法, 地下储气库, 断层, 密封性能

Abstract: Faults are weak links in depleted oil-and-gas-reservoir underground gas storage facilities.The numerous factors affecting fault sealing,their complex interactions,and the ambiguity of indicator weights pose challenges to comprehensive evaluation of fault sealing in gas storage facilities.In view of this,a comprehensive evaluation method for fault sealing based on “combined subjective-objective weighting-the efficacy coefficient method” was proposed.A fault sealing evaluation index system was established from four aspects,namely fault lithologic characteristics,environmental conditions,mechanical characteristics,and injection-production system.The DEMATEL method and the anti-entropy weighting method were jointly used to determine indicator weights,thereby reducing the bias caused by weighting with a single method.By calculating the total efficacy coefficient of gas storage faults,the sealing performance grade of faults in gas storage facilities was quantitatively determined.This evaluation method was applied to a gas storage facility in the Bohai Bay Basin.The results show that the sealing grade of the gas storage facility is Grade Ⅲ(relatively good),and the calculated results are consistent with actual field conditions.This evaluation model is feasible and can provide a comprehensive assessment of the sealing performance of faults in underground gas storage facilities.These results can provide a theoretical reference for site selection and fault sealing evaluation of underground gas storage facilities.

Key words: combined subjective-objective weighting, efficacy coefficient method, underground gas storage, fault, sealing performance

中图分类号:

TE122

徐海涛, 刘康, 肖勇, 于永, 刘晓方, 陈国明, 王成鑫. 基于主客观赋权与功效系数法的储气库断层密封性评价方法[J]. 特种油气藏, 2026, 33(4): 16-22.

Xu Haitao, Liu Kang, Xiao Yong, Yu Yong, Liu Xiaofang, Chen Guoming, Wang Chengxin. Fault sealing evaluation method for gas storage based on combined subjective-objective weighting and the efficacy coefficient method[J]. Special Oil & Gas Reservoirs, 2026, 33(4): 16-22.

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基于主客观赋权与功效系数法的储气库断层密封性评价方法

Fault sealing evaluation method for gas storage based on combined subjective-objective weighting and the efficacy coefficient method

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