Temperature Distribution in Closed Wellbore with Hot Fluid Circulation
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摘要: 为了合理配备闭式热流体循环降黏设备、设定循环参数，利用传热学相关理论，建立了闭式热流体循环井加热段和非加热段的井筒温度场模型，结合模型的定解条件，对井筒压力和温度进行耦合求得数值解。利用建立的模型对采用闭式热流体循环降黏4口井产出液和上返液的井口温度进行了预测，并探讨了生产参数和循环参数对井筒加热效果的影响，结果表明：预测的产出液和上返液的井口温度与实测结果相比平均相对误差分别为3.08%和1.38%，符合工程要求；产出液量每增加1 t/d，产出液温度降低0.134 5 ℃；含水率每升高10%，产出液温度降低0.161 ℃；随注入循环量的增大和注入温度的升高，产出液温度升高，但注入温度对产出液温度影响较大。利用闭式热流体循环井筒温度场模型分析井筒温度场，可以为闭式热流体循环降黏设计提供依据。Abstract: To configure the closed equipment with hot fluid circulation and set its circulation parameters properly,the temperature field model was established for heating and non-heating sections of a closed wellbore with hot fluid circulation on the basis of relevant heat transfer theories.Under the condition of definite solution,the model was used to determine the coupling values of pressure and temperature in wellbore.Moreover,the model was also used to predict the wellhead temperature of fluids produced and returned in four closed wells in which hot fluids were circulated,and the influences of production and circulation parameters on wellbore heating were discussed.The results showed that the average error of predicted wellhead temperature of fluids produced and returned was 3.08% and 1.38% respectively,compared with the measured values,which meet the engineering requirements;the temperature of fluid produced declined by 0.134 5 ℃ if fluid volume increased one ton per day,and declined 0.161 ℃ if water cut increased by 10%;and the temperature of produced fluids rises with the increase of circulation rate and injecting temperature,which is the main factor to affect the heating effects.The method can provide basis for the design of the hot fluid circulation in closed wellbore to lower viscosity of produced fluids by modeling the temperature field.
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[1] 姚传进,雷光伦,吴川,等.高凝油井电伴热优化计算[J].石油学报,2010,31(5):843-848. Yao Chuanjin,Lei Guanglun,Wu Chuan,et al.An optimization calculation of electric heat tracing for high-pour-point-oil wells[J].Acta Petrolei Sinica,2010,31(5):843-848. [2] 林日亿,梁金国,杨德伟,等.空心抽油杆内密闭热水循环降黏技术[J].中国石油大学学报:自然科学版,2010,34(3):104-108. Lin Riyi,Liang Jinguo,Yang Dewei,et al.Viscosity reduction technology by closed hot water circulation in hollow sucker rod[J].Journal of China University of Petroleum:Edition of Natural Science,2010,34(3):104-108. [3] 梅春明,李柏林.塔河油田掺稀降黏工艺[J].石油钻探技术,2009,37(1):73-76. Mei Chunming,Li Bolin.Mixing light oil to reduce oil viscosity in Tahe Oilfield[J].Petroleum Drilling Techniques,2009,37(1):73-76. [4] 吴晓东,师俊峰,竺彪.循环热流体开采稠油优化设计方法研究[J].石油钻探技术,2006,34(6):1-3. Wu Xiaodong,Shi Junfeng,Zhu Biao.A study of recovering heavy-oil reservoir with hot fluids[J].Petroleum Drilling Techniques,2006,34(6):1-3. [5] 吴晗,吴晓东,师俊峰,等.热流体循环在超深井中的应用[J].石油钻采工艺,2008,30(5):77-79,84. Wu Han,Wu Xiaodong,Shi Junfeng,et al.Application of hot fluid circulation to ultra-deep well[J].Oil Drilling Production Technology,2008,30(5):77-79,84. [6] 任瑛,梁金国,杨双虎,等.稠油与高凝油热力开采问题的理论与实践[M].北京:石油工业出版社,2001:7-15. Ren Ying,Liang Jinguo,Yang Shuanghu,et al.Theory and practice of heavy oil and high pour-point oil thermal production[M].Beijing:Petroleum Industry Press,2001:7-15. [7] 赵刚,马远乐,鲁港.井筒热流体循环的数学模型及其解析解[J].西南石油学院学报,1996,18(4):59-63,124. Zhao Gang,Ma Yuanle,Lu Gang.Mathematical model of wellbore hot fluid circulation and its analytical solution[J].Journal of Southwest Petroleum Institute,1996,18(4):59-63,124. [8] 梁金国,徐明海.稠油井闭式热流体循环井筒温场计算与抽油杆柱设计[J].石油大学学报:自然科学版,1993,17(3):46-51. Liang Jinguo,Xu Minghai.Wellbore hot fluid circulation and sucker-rod design for heavy oil wells[J].Journal of the University of Petroleum,China:Edition of Natural Science,1993,17(3):46-51. [9] 李维国,同登科.数值计算方法[M].东营:中国石油大学出版社,2009:19-37. Li Weiguo,Tong Dengke.Numerical computation method[M].Dongying:China Petroleum University Press,2009:19-37. [10] 张琪.采油工程原理与设计[M].东营:石油大学出版社,2000:41-53. Zhang Qi.Principle and design of production engineering[M].Dongying:Petroleum University Press,2000:41-53. -
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