[1]唐胜利,李鹏飞,姜鹏飞,等.关中地区U型地热井水平井段高效换热规律数值模拟[J].西安科技大学学报,2020,(01):96-101.
 TANG Sheng-li,LI Peng-fei,JIANG Peng-fei,et al.Numerical simulation of high efficiency heat transfer rule in horizontal section of U-shaped geothermal well in Guanzhong area[J].Journal of Xi'an University of Science and Technology,2020,(01):96-101.
点击复制

关中地区U型地热井水平井段高效换热规律数值模拟(/HTML)
分享到:

西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2020年01期
页码:
96-101
栏目:
出版日期:
2020-02-15

文章信息/Info

Title:
Numerical simulation of high efficiency heat transfer rule in horizontal section of U-shaped geothermal well in Guanzhong area
文章编号:
1672-9315(2020)01-0096-06
作者:
唐胜利12李鹏飞1姜鹏飞1张育平2
(1.西安科技大学 地质与环境学院,陕西 西安 710054; 2.国土资源部煤炭资源勘查与综合利用重点实验室,陕西 西安 710021)
Author(s):
TANG Sheng-li12LI Peng-fei1JIANG Peng-fei1ZHANG Yu-ping2
(1.College of Geology and Environment,Xi'an University of Science and Technology,Xi'an 710054,China; 2.Key Experiment of Coal Resource Exploration and Comprehensive Utilization,Ministry of Land and Resources,Xi'an 710021,China)
关键词:
U型地热井 地温恢复 数值模拟 最佳流速
Keywords:
U-shaped geothermal wells formation temperature recovery numerical simulation best velocity
分类号:
TK 529
文献标志码:
A
摘要:
为研究U型地热井水平井段在采暖期间换热能力随注水流量的变化规律,并在非采暖期间不同流速且地层恢复至初始温度的前提下确定最优流速及最大取热量,以西安市深度为2 050 m的垂直埋深U型地热井水平井段取暖系统为研究对象,利用ANSYS FLUENT软件进行数值计算。根据恒定入口水温和流速的现场实际情况,建立了数值模拟的物理模型和数学模型,设置合理的边界条件,得到了U型地热井水平井段换热能力随流速的变化规律。研究表明在同一采暖期间,注水流量越大,出口水温越低,取热量越大。在流速为0.3 m/s即流量为33.85 t/h时地层在非取暖期间可以恢复至初始温度且水平井段最大取热量为1.81×1013J.
Abstract:
The purpose of this paper is to study the change rule of the heat transfer capacity of horizontal well section of u-shaped geothermal well with water injection flow during heating period and determine the optimal flow rate and maximum heat withdrawal under the premise of different flow rates during non-heating period and the formation recovery to the initial temperature.The u-shaped geothermal well heating system with a vertical buried depth of 2 050 m in Xi'an was taken as the research object,and the software ANSYS FLUENT was used for numerical calculation.According to the actual situation of constant inlet water temperature and flow velocity,the physical and mathematical models of numerical simulation were established,and reasonable boundary conditions were set up.The results show that during the same heating period,the greater the water injection flow is,the lower the outlet water temperature is,and the greater the heat extraction is.When the flow rate is 0.3 m/s,that is,the flow rate is 33.85 t/h,the formation can recover to the initial temperature during the non-heating period,and the maximum heat recovery of the horizontal well section is 1.81×1013J.

参考文献/References:

[1] 徐天福,袁益龙,姜振蛟.干热岩资源和增强型地热工程——国际经验和我国展望[J].吉林大学学报,2016,46(4):1140-1152. XU Tian-fu,YUAN Yi-long,JIANG Zhen-jiao.Hot dry rock and enhanced geothermal engineering:international experience and China prospect[J].Journal of Jinlin University,2016,46(4):1140-1152. [2]徐怀颖,张宝生.环渤海及京津地区油田地热能利用前景[J].中国石油大学学报,2012,36(4):182-185. XU Huai-ying,ZHANG Bao-sheng.Perspective of use of geothermal energy in oilfields of circum-Bohai bay region[J].Journal of China University of Petroleum,2012,36(4):182-185. [3]许天福,胡子旭,李胜涛,等.增强型地热系统:国际研究进展与我国研究现状[J].地质学报,2018,92(9):1936-1947. XU Tian-fu,HU Zi-xu,LI Sheng-tao,et al.Enhanced geothermal system:international progress and research status China[J].Acta Geologica Sinica,2018,92(9):1936-1947. [4]曾玉超,苏 正,吴能友.双井式增强相地热系统产能与阻抗数值模拟研究[J].太阳能学报,2015,36(4):928-935. ZENG Yu-chao,SU Zheng,WU Neng-you.Numerical simulation of power and impedance of two-well enhanced geothermal system[J].Acta Energiae Solaris Sinica,2015,36(4):928-935. [5]吕 朋,孙友宏,李 强.地热井U型管周围土壤温度场的ANSYS模拟[J].世界地质,2011,30(2):301-306. LU Peng,SUN You-hong,LI Qiang.ANSYS simulation of soil temperature field around U-tube in geothermal well[J].World Geology,2011,30(2):301-306. [6]郤保平,赵金昌,赵阳升.高温岩体地热钻井施工关键技术研究[J].岩石力学与工程学报,2011,30(11):2234-2242. TAO Bao-ping,ZHAO Jin-chang,ZHAO Yang-sheng.Key technologies of hot dry rock drilling during construction[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(11):2234-2242. [7]于进洋,白晨光,张新明,等.钻孔灌注桩泥浆流变性能评价方法探讨[J].探矿工程(岩土钻掘工程),2013,40(4):75-77. YU Jin-yang,BAI Chen-guang,ZHANG Xin-ming,et al.Discussion of evaluation on mud rheological property used for bored pile[J].Exploration Engineering(Rock & Soil Drilling and Tunneling),2013,40(4):75-77. [8]何世明,陈俞霖,马德新,等.井壁稳定多场耦合分析研究进展[J].西南石油大学学报(自然科学版),2017,39(2):81-92. HE Shi-ming,CHEN Yu-lin,MA De-xin,et al.A review on wellbore stability with multi-field coupling analysis[J].Journal of Southwest Petroleum University(Science & Technology Edition),2017,39(2):81-92. [9]刘 杰,段永刚,何 玮,等.高温井井筒温度分布计算方法[J].重庆科技学院学报(自然科学版),2010,12(1):191-193. LIU Jie,DUAN Yong-gang,HE Wei,et al.Calculation method of wellbore temperature distribution in high temperature well[J].Journal of Chongqing University of Science and Technology(Natural Science Edition),2010,12(1):191-193. [10]杨雪山,李 胜,鄢捷年,等.水平井井筒温度场模型及ECD的计算与分析[J].钻井液与完井液,2014,31(5):63-66. YANG Xue-shan,LI Sheng,YAN Jie-nian,et al.Calculation and analysis of temperature field model and ECD of horizontal wellbore[J].Drilling Fluids & Completion Fluid,2014,31(5):63-66. [11]杨艳林,王福刚.CO2增强地热系统中的井网间距优化研究[J].太阳能学报,2014,35(7):1130-1137. YANG Yan-lin,WANG Fu-gang.Optlmal design of well spacing on CO2 enhanced geotherma[J].Acta Geologica Sinica,2014,35(7):1130-1137. [12]唐志伟,米倡华,安爱明.干热岩生产井温度场的热力计算[J].北京工业大学学报,2017,35(4):645-648. TANG Zhi-wei,MI Chang-hua,AN Ai-ming.Calculation of temperature field for hot dry rock production wells[J].Journal of Beijing University of Technology,2017,35(4):645-648. [13]冯绍航,陈静平,陈延信,等.管道水流速对深层U型地热井采热影响的数值模拟研究[J].西安建筑科技大学学报(自然科学版),2012,44(4):586-592. FENG Shao-hang,CHEN Jing-ping,CHEN Yan-xin,et al.Numerical simulation study of the relation between water velocity and heat transfer in the deep geothermal well[J].Journal of Xi'an University ofArchitectureand Technology(Natural Science Edition),2012,44(4):586-592. [14]袁益龙,侯兆云,雷宏武.增强型地热系统井筒——储层耦合数值模拟分析[J].可再生能源,2015,33(3):421-426. YUAN Yi-long,HOU Zhao-yun,LEI Hong-wu.Numerical simulation analysis of wellbore-reservoir coupling of EGS[J].Renewable Energy Resource,2015,33(3):421-426. [15]杨 谋,孟英峰,李 皋,等.钻井液径向温度梯度与轴向导热对井筒温度分布影响[J].物理学报,2013,62(7):537-546. YANG Mou,MENG Ying-feng,LI Gao,et al.Effects of the radial temperature gradient and axial conduction of drilling fluid on the wellbore temperature distribution[J].Acta Physica Sinica,2013,62(7):537-546. [16]杨 谋,孟英峰,李 皋,等.钻井全过程井筒-地层瞬态传热模型[J].石油学报,2013,34(2):366-371. YANG Mou,MENG Ying-feng,LI Gao,et al.A transient heat transfer model of wellbore and formation during the whole drilling process[J].Acta Petrolei Sinica,2013,34(2):366-371. [17]秦立科,徐国强,甄 刚.基于颗粒流模型微波辅助破岩过程数值模拟[J].西安科技大学学报,2019,39(1):112-118. QIN Li-ke,XU Guo-qiang,ZHEN Gang.Numerical simulation of rock fragmentation under microwave irradiation using particle flow method[J].Journal of Xi'an University of Science and Technology,2019,39(1):112-118. [18]叶万军,李长清,李 晓,等.溶蚀作用对黄土体物理力学性质影响的试验[J].西安科技大学学报,2019,39(4):610-618. YE Wan-jun,LI Chang-qing,LI Xiao,et al.Experiment on the effect of rainfall erosion on physical and mechanical properties of loess[J].Journal of Xi'an University of Science and Technology,2019,39(4):610-618. [19]刘之的,张伟杰,孙家兴,等.大情字井油田青一段特低渗透储层物性主控因素[J].西安科技大学学报,2018,38(1):99-107. LIU Zhi-de,ZHANG Wei-jie,SUN Jia-xing,et al.Factors influencing the physical properties of reservoir in the Qing 1 section of Daqingzijing Oilfield[J].Journal of Xi'an University of Science and Technology,2018,38(1):99-107.

备注/Memo

备注/Memo:
收稿日期:2019-01-11 责任编辑:李克永
基金项目:国家自然科学基金(41702298,41572287); 陕西省自然科学基础研究计划(2017JQ4020); 陕西省教育厅专项科研计划项目(17JK0515)
通信作者:段 钊(1985-),男,陕西西安人,副教授,E-mail:landsliders@163.com
更新日期/Last Update: 2020-02-15