牙哈储气库注采井位移原因分析与对策思考
Analysis of displacement causes and countermeasures forinjection-production wells in the Yaha gas storage facility
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- 引用格式:
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王子敦,李翔,苏鹏,高佳松,王思程,马海龙.牙哈储气库注采井位移原因分析与对策思考[J].天然气与石油,2026,44(3):40-48.doi:10.3969/j.issn.1006-5539.2026.03.006
Wang Zidun, Li Xiang, Su Peng, Gao Jiasong, Wang Sicheng, Ma Hailong.Analysis of displacement causes and countermeasures forinjection-production wells in the Yaha gas storage facility[J].Natural Gas and Oil,2026,44(3):40-48.doi:10.3969/j.issn.1006-5539.2026.03.006
- DOI:
- 10.3969/j.issn.1006-5539.2026.03.006
- 作者:
- 王子敦 李翔 苏鹏 高佳松 王思程 马海龙
Wang Zidun, Li Xiang, Su Peng, Gao Jiasong, Wang Sicheng, Ma Hailong
- 作者单位:
- 中国石油塔里木油田分公司迪那采油气管理区, 新疆 库尔勒 841000
Dina Oil and Gas Production Management Area of PetroChina Tarim Oilfield Company, Korla, Xinjiang, 841000, China
- 关键词:
- 井口抬升;沉降监测;井控安全;储气库;防治技术
Wellhead uplift; Subsidence monitoring; Well control safety; Gas storage facility; Prevention and control technology
- 摘要:
- 油气井井口抬升与沉降是影响井筒完整性和生产安全的关键隐患,尤其在储气库、这种频繁注采作业场景中表现突出。为解决储气库注采井井口抬升与沉降引发的井筒完整性破坏及生产安全隐患问题,以牙哈储气库为研究对象,基于井筒多管柱力学理论,结合中国典型气藏现场数据,构建多因素耦合分析模型,量化温度效应、地层压力变化、地质条件等因素的影响权重,建立分类监测体系与分级防治对策。研究表明,井口抬升与沉降具有累积性和不可逆性,温度导致的套管热膨胀与地层变形是主要驱动因素(贡献占比50%~60%),优化注采制度可使抬升速率降低30%以上。提出的“监测—评估—防控”一体化技术体系,应用后高风险井事故率降低75%,单井维护成本下降40万元/a。研究成果可为高温、高压气藏井口安全管理提供理论依据和实践指导。
Wellhead uplift and subsidence in oil and gas wells are critical hazards affecting wellbore integrity and production safety, particularly in scenarios involving frequent injection and production operations such as gas storage facilities. To address wellbore integrity damage and production safety hazards caused by wellhead uplift and subsidence in injection-production wells at gas storage facilities, this study focuses on the Yaha gas storage facility. Based on multi-string wellbore mechanics theory and field data from typical domestic gas reservoirs, a multi-factor coupling analysis model was developed to quantify the influence weights of temperature effects, formation pressure variations, geological conditions, and other factors. A classified monitoring system and graded prevention and control strategies were established. The results show that wellhead uplift and subsidence are cumulative and irreversible, with casing thermal expansion induced by temperature changes and formation deformation being the primary driving factors(contributing 50%~60%). Optimizing the injection-production regime can reduce the uplift rate by more than 30%. The proposed integrated “monitoring-assessment-prevention and control” technical framework has reduced the accident rate of high-risk wells by 75% and decreased single-well maintenance costs by ￥400 000 per year after implementation. The research findings provide a theoretical basis and practical guidance for wellhead safety management in high-temperature high-pressure gas reservoirs.
