高温高压气井温度压力耦合分布研究  

Study on coupling distribution of temperature and pressure in high temperature and high pressure gas wells

作　　者：窦益华[1,2] 缑雅洁 郑杰 李贞贞[1,2] Dou Yihua;Gou Yajie;Zheng Jie;Li Zhenzhen(School of Mechanical Engineering, Xi'an Shiyou University, Shaanxi Xi'an, 710065, China;Xi'an Key Laboratory of Wellbore Integrity Evaluation, Shaanxi Xi'an, 710065, China;Xi'an Special Equipment Inspection Institute, Shaanxi Xi'an, 710065, China;School of Power and Energy, Northwestern Polytechnical University, Shaanxi Xi'an, 710072, China)

机构地区：[1]西安石油大学机械工程学院,陕西西安710065 [2]西安市高难度复杂油气井完整性评价重点实验室,陕西西安710065 [3]西安特种设备检验检测院,陕西西安710065 [4]西北工业大学动力与能源学院,陕西西安710072

出　　处：《机械设计与制造工程》2022年第3期103-107,共5页Machine Design and Manufacturing Engineering

基　　金：国家自然科学基金资助项目(52004215,51674199)。

摘　　要：基于Ramey经典井筒温度计算模型,结合井筒与地层间的热量传递过程分别建立了开井与关井两种生产状态的瞬态井筒温度压力数学模型,分析了不同工况下的井筒传热过程。利用建立模型对现场实际井例进行计算并与商用软件模拟结果进行对比,分析了开井和关井时对应井筒温度压力的分布情况,同时验证了井筒温度与压力预测模型的准确性,为气井实际生产过程中温度压力的预测提供了理论依据。Based on Ramey classical wellbore temperature calculation model,combined with the heat transfer process between wellbore and the formation,the transient wellbore temperature and pressure mathematical models in the opening and shutting-in process of gas well and the wellbore heat transfer process under different conditions are analyzed.By comparing the model with field actual well examples and commercial software simulation results,the distribution of corresponding wellbore temperature and pressure during opening well and shutting-in well is analyzed,and the accuracy of the wellbore temperature and pressure prediction model is verified,which provides theoretical basis for temperature and pressure prediction during actual production process of gas wells.

关 键 词：高温高压 气井 温度压力 开关井 

分 类 号：TE372[石油与天然气工程—油气田开发工程]