中国天然气地下储气库重大理论、关键技术进展与展望  

Major theories and key technologies of underground natural gas storage facilities in China:Progress and prospects

作　　者：完颜祺琪 李国欣[1,2,3,4,5] 朱华银 胥洪成[1,2,3] 苏云河 李春[1,2,3] 李康 邱小松[1,2,3] 魏欢 宋丽娜[1,2,3] WANYAN Qiqi;LI Guoxin;ZHU Huayin;XU Hongcheng;SU Yunhe;LI Chun;LI Kang;QIU Xiaosong;WEI Huan;SONG Lina(National Energy Underground Gas Storage Research and Development Center,Langfang,Hebei 065007,China;PetroChina Research Institute of Petroleum Exploration&Development,Beijing 100083,China;CNPC Key Laboratory of Underground Oil&Gas Storage Engineering,Langfang,Hebei 065007,China;PetroChina Company Limited,Beijing 100007,China;PetroChina Oil,Gas&New Energies Company,Beijing 100007,China)

机构地区：[1]国家能源地下储气库研发中心 [2]中国石油勘探开发研究院 [3]中国石油集团油气地下储库工程重点实验室 [4]中国石油天然气股份有限公司 [5]中国石油油气和新能源分公司

出　　处：《天然气工业》2025年第1期153-163,共11页Natural Gas Industry

基　　金：中国石油天然气集团有限公司基础性前瞻性项目“地下储气库基础理论与扩容新方法研究”(编号:2022DJ83)。

摘　　要：2019年中国地下储气库(以下简称储气库)进入高速发展期,气藏储气库面临着部分在役库达产率低、低渗泛连通气藏建库设计难度大等难题;盐穴储气库面临造腔速度慢和储气空间利用率低等挑战;油藏储气库建库机理与相关技术尚处于探索阶段,亟需攻关研究。为此,以破解气藏、盐穴、油藏不同类型储气库建库机理、储气空间优化设计等难题为目标,开展了系列理论研究与技术攻关。研究结果表明:(1)形成的在役库提高上限压力优化、大型低渗泛连通气藏建库、储气库群协同调峰优化等技术,助力气藏储气库高效建设与扩容增产;(2)建立的大井眼与水平井造腔、残渣空隙空间利用预测技术,指导了盐穴储气库高效造腔与储气空间利用最大化;(3)创建了气液高速交互滚动排驱仿真模拟与周期注采油气体系相行为模拟实验技术和油藏,形成了油藏建库驱替—传质耦合库容量预测方法,形成了油藏建库协同提高原油采收率的新模式;(4)复杂地质条件储气库高效建设运行和地下空间多元综合利用是未来增强储气保供能力和实现“3060双碳”战略目标的重要举措。结论认为,研究成果有力支撑了中国储气库快速发展,近5年来气藏、盐穴、油藏储气库建库能力全面提升,保障了储气库工作气量由100×10^(8) m^(3)向200×10^(8) m^(3)翻番增长,对我国地下储气库建设和地下空间综合利用具有重要指导和借鉴意义。China has entered a rapid growth period of underground gas storages(UGSs)since 2019.Nonetheless,there are a lot of bottleneck problems on UGSs.Specifically,for gas reservoir storages,some storages in service exhibit a low ratio of actual to expected working gas volume,and it is difficult to design and construct UGSs from low-permeability pan-connected gas reservoirs;for salt cavern storages,the working gas volume mining speed and storage space utilization need to be enhanced;for oil reservoir storages,the storage construction mechanism and relevant technologies are still at the exploratory stage.This paper presents a systematic examination on the storage construction mechanism,storage space optimization and other aspects of different types of UGSs(gas reservoirs,salt caverns,and oil reservoirs),and summarizes the key/core technologies that have supported the rapid growth of UGSs in China in the past five years.The results are obtained in four aspects.First,three main technologies are formed,including the optimization of the maximum allowable storage pressure of the in-service UGSs,the storage construction from large-scale,low-permeability,pan-connected gas reservoirs,and the optimization of coordinated peak shaving of UGS groups,which have improved the results of storage construction from gas reservoirs.Second,the large borehole and horizontal cavern mining technology and the sump void space utilization prediction technology are developed for salt cavern storages.Third,the technologies for simulating gas-liquid high-speed interactive rolling displacement and phase behaviors of periodic injection-withdrawal oil and gas system are established,a new method for predicting the capacity of storage rebuilt from oil reservoir considering the coupling of displacement and mass transfer is formed,and a new model of synergy between gas storage construction and enhanced oil recovery in oil reservoirs is considered.Fourth,the technical orientations of UGS construction and operation and the technical requirements for the divers

关 键 词：地下储气库 提压扩容 滚动排驱 造腔设计 优化运行 地下空间综合利用 

分 类 号：TE822[石油与天然气工程—油气储运工程]