Article(id=1149768951061725366, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149768937925165147, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2405045, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1720108800000, receivedDateStr=2024-07-05, revisedDate=1731772800000, revisedDateStr=2024-11-17, acceptedDate=null, acceptedDateStr=null, onlineDate=1752055879607, onlineDateStr=2025-07-09, pubDate=1748361600000, pubDateStr=2025-05-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752055879607, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752055879607, creator=13701087609, updateTime=1752055879607, updator=13701087609, issue=Issue{id=1149768937925165147, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='15', pageStart='6155', pageEnd='6586', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752055876475, creator=13701087609, updateTime=1768456822194, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218559490207699090, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149768937925165147, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218559490211893395, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149768937925165147, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=6332, endPage=6343, ext={EN=ArticleExt(id=1149768951376298175, articleId=1149768951061725366, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Numerical Simulation of Heat Transfer Characteristics and Influencing Factors in Middle-deep U-shaped Geothermal Well, columnId=1156264600770302582, journalTitle=Science Technology and Engineering, columnName=Papers·Energy and Power Engineering, runingTitle=null, highlight=null, articleAbstract=
The U-shaped geothermal well, as a method for extracting medium-deep geothermal energy, is considered significant for enhancing the energy utilization efficiency of geothermal reservoirs. Geological and reservoir data from the Huangling area in Shaanxi Province were used to establish a numerical model of a U-shaped geothermal well with a depth of 3 500 meters. Field experiment cases were simulated and validated to investigate the heat transfer characteristics of U-shaped geothermal wells and the impact of related factors on thermal extraction efficiency. The effects of well type, reservoir geothermal gradient, and operational conditions on thermal extraction efficiency were analyzed, and the optimization of well type and parameters was further evaluated. The results indicate that U-shaped geothermal wells achieve higher thermal extraction efficiency compared to other types, particularly in areas with high geothermal gradients and depths exceeding 3 000 meters. Within the parameter range of this study (injection flow rates of 40, 60, 80, 100, and 120 m3/h, and injection temperatures of 20, 25, 30, 35, and 40 ℃), it was found that a larger temperature difference between the inlet and outlet fluids of the U-shaped geothermal well leads to a higher heat transfer rate. The optimal injection flow rate and temperature for U-shaped geothermal wells in the study area were determined to be 100 m3/h and 20 ℃, respectively. The selection of the injection flow rate should consider the requirements for outlet temperature, thermal extraction power, and the power consumption of the circulating water pump. The research findings are expected to provide guidance for optimizing medium-deep geothermal extraction in the region.
, correspAuthors=Qian GAO, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Zhao-xu HAN, Qian GAO, Yuan-hong HAN, De-sheng ZHOU, Hua-gui YU, Qiang SUN), CN=ArticleExt(id=1149768993004765507, articleId=1149768951061725366, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=中深层U型地热井换热特征及影响因素数值模拟研究, columnId=1156264600912908920, journalTitle=科学技术与工程, columnName=论文·能源与动力工程, runingTitle=null, highlight=null, articleAbstract=
U型地热井作为开采中深层地热能的一种方式,其热开采效率的提高对地热储层的能源利用具有重要意义。为了研究U型地热井的换热特征及相关因素对热开采效率的影响,结合陕西黄陵地区地质与储层资料,通过建立3 500 m深U型地热井数值模型,对现场实验案例进行了模拟验证,重点分析了地热井井型、储层地温梯度和工况条件等因素对热开采效率的影响,并进一步对井型优选与参数优化做出了评价。研究结果表明:U型地热开采井相较于其他类型的地热井,在岩土地温梯度较高,尤其是管道埋深3 000 m以上的地区热开采效率更为突出;在本研究的参数选择范围内(注水流量分别为40、60、80、100、120 m3/h,注入温度分别为20、25、30、35、40 ℃),U型地热井的出入口的流体温差越大,换热量也就相应越高,研究区域U型地热开采井的注入流量采用100 m3/h,注入温度采用20 ℃为最佳,对于注入流量的选择需综合考虑出口温度和热开采功率的要求以及循环水泵的功耗进行设计。研究成果有望指导所在地区中深层地热开采的优化设计。
, correspAuthors=高千, authorNote=null, correspAuthorsNote=
* 高千(1984—),男,汉族,湖北仙桃人,博士,副教授。研究方向:地热开采、油气开采等领域中与岩石力学相关问题。E-mail:
qgao@xsyu.edu.cn。
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1 College of Petroleum Engineering, Xi'an Shiyou University, Xi'an 710065, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1172924479052329866, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, authorId=1172924478930695047, language=CN, stringName=韩朝旭, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 西安石油大学石油工程学院, 西安 710065, bio={"content":"
韩朝旭(1998—),男,汉族,河南商丘人,硕士研究生。研究方向:油气田开发工程。E-mail:zxhan202209@163.com。
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韩朝旭(1998—),男,汉族,河南商丘人,硕士研究生。研究方向:油气田开发工程。E-mail:zxhan202209@163.com。
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3 Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Natural Resources, Xi'an 710021, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1172924479425622932, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, authorId=1172924479287210897, language=CN, stringName=韩元红, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3 自然资源部煤炭资源勘查与综合利用重点实验室, 西安 710021, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1172924478767117184, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, xref=3, ext=[AuthorCompanyExt(id=1172924478779700097, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, companyId=1172924478767117184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1 College of Petroleum Engineering, Xi'an Shiyou University, Xi'an 710065, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1172924479597589401, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, authorId=1172924479480148886, language=CN, stringName=周德胜, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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4 College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1172924480000242595, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, authorId=1172924479861830560, language=CN, stringName=孙强, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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35(4): 1217-1222., articleTitle=Heat transfer performance analysis of the middle-deep coaxial casing ground heat exchanger, refAbstract=null)], funds=[Fund(id=1172924483733173210, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, awardId=52174029, language=CN, fundingSource=国家自然科学基金(52174029), fundOrder=null, country=null), Fund(id=1172924483779310555, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, awardId=52274039, language=CN, fundingSource=国家自然科学基金(52274039), fundOrder=null, country=null), Fund(id=1172924483833836508, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, awardId=U23B2089, language=CN, fundingSource=国家自然科学基金(U23B2089), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1172924478574179194, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, xref=1, ext=[AuthorCompanyExt(id=1172924478582567803, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, companyId=1172924478574179194, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 College of Petroleum Engineering, Xi'an Shiyou University, Xi'an 710065, China), AuthorCompanyExt(id=1172924478586762108, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, companyId=1172924478574179194, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 西安石油大学石油工程学院, 西安 710065)]), AuthorCompany(id=1172924478674842493, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, xref=2, ext=[AuthorCompanyExt(id=1172924478683231102, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, companyId=1172924478674842493, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 西安石油大学新能源学院, 西安 710065)]), AuthorCompany(id=1172924478767117184, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, xref=3, ext=[AuthorCompanyExt(id=1172924478779700097, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, companyId=1172924478767117184, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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4 College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China), AuthorCompanyExt(id=1172924478871974789, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, companyId=1172924478859391875, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4 西安科技大学地质与环境学院, 西安 710054)])], figs=[ArticleFig(id=1172924480855880622, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.1, caption=
Geometric model and grid division of U-shaped horizontal docking well, figureFileSmall=smW9KADwjNi+nzjLOtzi7Q==, figureFileBig=CXEmv+HIPEKQqS8GEP1VZg==, tableContent=null), ArticleFig(id=1172924480931378095, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图1, caption=
U型水平对接井几何建模与网格划分, figureFileSmall=smW9KADwjNi+nzjLOtzi7Q==, figureFileBig=CXEmv+HIPEKQqS8GEP1VZg==, tableContent=null), ArticleFig(id=1172924480998486960, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.2, caption=
Comparison of the numerical simulation and the field experimental water temperature of the water injection heat transfer cycle test under four flow conditions, figureFileSmall=4RDacHw/aH8iK2nehfhW+Q==, figureFileBig=XBGK1P8V1aFYvxrYpS+spA==, tableContent=null), ArticleFig(id=1172924481057207217, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图2, caption=
4种流量工况下的注水换热循环试验出口水温数值模拟与现场实验数据对比, figureFileSmall=4RDacHw/aH8iK2nehfhW+Q==, figureFileBig=XBGK1P8V1aFYvxrYpS+spA==, tableContent=null), ArticleFig(id=1172924481132704690, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.3, caption=
Comparison of heat transfer quantity between U-shaped and coaxial casing geothermal wells in 50 hours, figureFileSmall=ZHWbx7/cFiGzpFbEMUL8bg==, figureFileBig=FSDUBx4QO8NAOKDofBt49Q==, tableContent=null), ArticleFig(id=1172924481187230643, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图3, caption=
U型与同轴套管式地热井50 h间换热量对比, figureFileSmall=ZHWbx7/cFiGzpFbEMUL8bg==, figureFileBig=FSDUBx4QO8NAOKDofBt49Q==, tableContent=null), ArticleFig(id=1172924481250145204, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.4, caption=
Temperature field profiles of U-shaped geothermal wells corresponding to different times, figureFileSmall=wCoCTLhOVkAudhI57shh3g==, figureFileBig=orfXLwiHOLZKX2I6r4DE4A==, tableContent=null), ArticleFig(id=1172924481317254069, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图4, caption=
不同时间对应的U型地热井温度场剖面, figureFileSmall=wCoCTLhOVkAudhI57shh3g==, figureFileBig=orfXLwiHOLZKX2I6r4DE4A==, tableContent=null), ArticleFig(id=1172924481392751542, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.5, caption=
The short-term variation of thermal recovery efficiency with geothermal gradient, figureFileSmall=pjON4Tp6YsY92rzVEcYDhw==, figureFileBig=Sh+ua7kjTZnVll7Kq/zQiw==, tableContent=null), ArticleFig(id=1172924481464054711, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图5, caption=
热采效率随地温梯度的短期变化, figureFileSmall=pjON4Tp6YsY92rzVEcYDhw==, figureFileBig=Sh+ua7kjTZnVll7Kq/zQiw==, tableContent=null), ArticleFig(id=1172924481514386360, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.6, caption=
The short-term variation distribution curve of circulating fluid temperature along well depth at different geothermal gradients, figureFileSmall=/M1kVlgZMOvS4yPbxKqWQg==, figureFileBig=WKKhyv492Kryy5/O4JB++g==, tableContent=null), ArticleFig(id=1172924481568912313, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图6, caption=
不同地温梯度下循环液温度沿井深的短期变化分布曲线, figureFileSmall=/M1kVlgZMOvS4yPbxKqWQg==, figureFileBig=WKKhyv492Kryy5/O4JB++g==, tableContent=null), ArticleFig(id=1172924481652798394, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.7, caption=
The long-term variation of thermal recovery efficiency with geothermal gradient, figureFileSmall=n4SsS1j+c+jmL3tJUiZyZA==, figureFileBig=HYUzMs85ZJIbjRH3hWQLUw==, tableContent=null), ArticleFig(id=1172924481719907259, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图7, caption=
热采效率随地温梯度的长期变化, figureFileSmall=n4SsS1j+c+jmL3tJUiZyZA==, figureFileBig=HYUzMs85ZJIbjRH3hWQLUw==, tableContent=null), ArticleFig(id=1172924481778627516, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.8, caption=
The long-term variation distribution curve of circulating fluid temperature along well depth at different geothermal gradients, figureFileSmall=/V1a7T+N5Oey9IOJkpFKTw==, figureFileBig=P+z/vCVcl5WsKs7aEn+kvA==, tableContent=null), ArticleFig(id=1172924481837347773, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图8, caption=
不同地温梯度下循环液温度沿井深的长期变化分布曲线, figureFileSmall=/V1a7T+N5Oey9IOJkpFKTw==, figureFileBig=P+z/vCVcl5WsKs7aEn+kvA==, tableContent=null), ArticleFig(id=1172924481896068030, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.9, caption=
The short-term variation of thermal recovery efficiency with injection temperature, figureFileSmall=/Ea/H8m1cDa94gLyEeaiGg==, figureFileBig=g+XKuK5ZS8ec5rKHn1Dd0A==, tableContent=null), ArticleFig(id=1172924481963176895, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图9, caption=
热采效率随注入温度的短期变化, figureFileSmall=/Ea/H8m1cDa94gLyEeaiGg==, figureFileBig=g+XKuK5ZS8ec5rKHn1Dd0A==, tableContent=null), ArticleFig(id=1172924482017702848, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.10, caption=
The temperature field profile of U-shaped geothermal well under different injection temperatures at the 1st year, figureFileSmall=6XmTNrHWXUprFyIou8sZ4w==, figureFileBig=rhexBcfzYonI6+CtisIr1g==, tableContent=null), ArticleFig(id=1172924482068034497, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图10, caption=
第1年不同注入温度下U型地热井温度场剖面, figureFileSmall=6XmTNrHWXUprFyIou8sZ4w==, figureFileBig=rhexBcfzYonI6+CtisIr1g==, tableContent=null), ArticleFig(id=1172924482118366146, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.11, caption=
The short-term variation distribution curve of circulating fluid temperature along well depth at different injection temperatures, figureFileSmall=NCnxt4jUS8iyTZFDJsBfBQ==, figureFileBig=gdP01kabm3hoqi6gp8Ahgg==, tableContent=null), ArticleFig(id=1172924482177086403, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图11, caption=
不同注入温度下循环液温度沿井深的短期变化分布曲线, figureFileSmall=NCnxt4jUS8iyTZFDJsBfBQ==, figureFileBig=gdP01kabm3hoqi6gp8Ahgg==, tableContent=null), ArticleFig(id=1172924482240000964, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.12, caption=
The long-term variation of thermal recovery efficiency with injection temperature, figureFileSmall=L2gP/W2GuqUsMvKMIfTuiQ==, figureFileBig=Rr+PU5C3L7c6cXefcBJ9Fg==, tableContent=null), ArticleFig(id=1172924482294526917, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图12, caption=
热采效率随注入温度的长期变化, figureFileSmall=L2gP/W2GuqUsMvKMIfTuiQ==, figureFileBig=Rr+PU5C3L7c6cXefcBJ9Fg==, tableContent=null), ArticleFig(id=1172924482353247174, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.13, caption=
The temperature field profile of U-shaped geothermal well under different injection temperatures at the 10th year, figureFileSmall=H77tYHENvzkYgMfR+qF+wA==, figureFileBig=JtAm2PHY1VOHyDrIuryUsA==, tableContent=null), ArticleFig(id=1172924482403578823, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图13, caption=
第10年不同注入温度下U型地热井温度场剖面, figureFileSmall=H77tYHENvzkYgMfR+qF+wA==, figureFileBig=JtAm2PHY1VOHyDrIuryUsA==, tableContent=null), ArticleFig(id=1172924482458104776, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.14, caption=
The long-term variation distribution curve of circulating fluid temperature along well depth at different injection temperatures, figureFileSmall=MWoFtOKHgcZb7Hv3JOXcZg==, figureFileBig=bao3QUyASLqJdTnOcgd1sA==, tableContent=null), ArticleFig(id=1172924482516825033, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图14, caption=
不同注入温度下循环液温度沿井深的长期变化分布曲线, figureFileSmall=MWoFtOKHgcZb7Hv3JOXcZg==, figureFileBig=bao3QUyASLqJdTnOcgd1sA==, tableContent=null), ArticleFig(id=1172924482588128202, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.15, caption=
The short-term variation of thermal recovery efficiency with injection flow rate, figureFileSmall=zK5t2zYoTHUIPqd8HYXbZQ==, figureFileBig=ZnoigR0c5QUZyaVSbFLpBA==, tableContent=null), ArticleFig(id=1172924482646848459, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图15, caption=
热采效率随注入流量的短期变化, figureFileSmall=zK5t2zYoTHUIPqd8HYXbZQ==, figureFileBig=ZnoigR0c5QUZyaVSbFLpBA==, tableContent=null), ArticleFig(id=1172924482709763020, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.16, caption=
The temperature field profile of U-shaped geothermal well under different injection flow rates at the 1st year, figureFileSmall=f3a93kIk2EwSmlw4qMBF7w==, figureFileBig=4qLw3V4OnOSaGofmrpevZQ==, tableContent=null), ArticleFig(id=1172924482776871885, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图16, caption=
第1年不同注入流量下U型地热井温度场剖面, figureFileSmall=f3a93kIk2EwSmlw4qMBF7w==, figureFileBig=4qLw3V4OnOSaGofmrpevZQ==, tableContent=null), ArticleFig(id=1172924482860757966, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.17, caption=
The short-term variation distribution curve of circulating fluid temperature along well depth at different injection flow rates, figureFileSmall=oNsQe4k8h2XNAH8nE2Swkw==, figureFileBig=eeRILXaccdnrsbFKJANO7Q==, tableContent=null), ArticleFig(id=1172924482940449743, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图17, caption=
不同注入流量下循环液温度沿井深的短期变化分布曲线, figureFileSmall=oNsQe4k8h2XNAH8nE2Swkw==, figureFileBig=eeRILXaccdnrsbFKJANO7Q==, tableContent=null), ArticleFig(id=1172924483007558608, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.18, caption=
The long-term variation of thermal recovery efficiency with injection flow rate, figureFileSmall=fPIdZ5Iv/8t7382LozGvUw==, figureFileBig=fONzU4m8irBsmy6BPJhjHA==, tableContent=null), ArticleFig(id=1172924483070473169, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图18, caption=
热采效率随注入流量的长期变化, figureFileSmall=fPIdZ5Iv/8t7382LozGvUw==, figureFileBig=fONzU4m8irBsmy6BPJhjHA==, tableContent=null), ArticleFig(id=1172924483124999122, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.19, caption=
The temperature field profile of U-shaped geothermal well under different injection flow rates at the 10th year, figureFileSmall=tSevE4ZFpEwv+Tdr1yUTEg==, figureFileBig=7HET09fSsBVB3Lxlyxio2w==, tableContent=null), ArticleFig(id=1172924483183719379, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图19, caption=
第10年不同注入流量下U型地热井温度场剖面, figureFileSmall=tSevE4ZFpEwv+Tdr1yUTEg==, figureFileBig=7HET09fSsBVB3Lxlyxio2w==, tableContent=null), ArticleFig(id=1172924483242439636, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Fig.20, caption=
The long-term variation distribution curve of circulating fluid temperature along well depth at different injection flow rates, figureFileSmall=glTmi3fYEjxD+XGGKaPccQ==, figureFileBig=9V0QbbNolbYW3ioGY48cfQ==, tableContent=null), ArticleFig(id=1172924483305354197, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=图20, caption=
不同注入流量下循环液温度沿井深的长期变化分布曲线, figureFileSmall=glTmi3fYEjxD+XGGKaPccQ==, figureFileBig=9V0QbbNolbYW3ioGY48cfQ==, tableContent=null), ArticleFig(id=1172924483393434582, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=EN, label=Table 1, caption=
Detailed parameters of U-shaped horizontal docking well model[16]
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名称 | 参数值 |
| 右直井井深/m | 2 780 |
| 水平井井深/m | 3 155 |
| 左直井井深/m | 3 155 |
| 右直井套管深度/m | 2 780 |
| 左直井套管深度/m | 2 730 |
| 聚氨酯保温层深度/m | 812 |
| 岩土导热系数/[W·(m·K)-1] | 1.00 |
| 岩土热容/[J·(m3·K)-1] | 1.6×106 |
| 固井水泥导热系数/[W·(m·K)-1] | 0.50 |
| 保温层导热系数/[W·(m·K)-1] | 0.50 |
| 保温层厚度/mm | 30 |
| 循环液导热系数/[W·(m·K)-1] | 0.59 |
| 循环液热容/[J·(m3·K)-1] | 4.19×106 |
| 循环液动力黏度/[kg·(m·s)-1] | 1.14×10-3 |
), ArticleFig(id=1172924483494097879, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149768951061725366, language=CN, label=表1, caption=
U型水平对接井模型详细参数[16]
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名称 | 参数值 |
| 右直井井深/m | 2 780 |
| 水平井井深/m | 3 155 |
| 左直井井深/m | 3 155 |
| 右直井套管深度/m | 2 780 |
| 左直井套管深度/m | 2 730 |
| 聚氨酯保温层深度/m | 812 |
| 岩土导热系数/[W·(m·K)-1] | 1.00 |
| 岩土热容/[J·(m3·K)-1] | 1.6×106 |
| 固井水泥导热系数/[W·(m·K)-1] | 0.50 |
| 保温层导热系数/[W·(m·K)-1] | 0.50 |
| 保温层厚度/mm | 30 |
| 循环液导热系数/[W·(m·K)-1] | 0.59 |
| 循环液热容/[J·(m3·K)-1] | 4.19×106 |
| 循环液动力黏度/[kg·(m·s)-1] | 1.14×10-3 |
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Detailed parameters of heat transfer model of coaxial casing geothermal well[20]
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| 参数名称 | 参数值 |
| 模拟区域深度/m | 3 600 |
| 井孔深度/m | 3 500 |
| 井孔半径/m | 0.15 |
| 外管外半径/m | 0.11 |
| 外管内半径/m | 0.1 |
| 外管导热系数/[W·(m·K)-1] | 41 |
| 外管定容比热/[J·(m3·K)-1] | 3.8×106 |
| 内管外半径/m | 0.07 |
| 内管内半径/m | 0.06 |
| 内管导热系数/[W·(m·K)-1] | 0.4 |
| 内管定容比热/[J·(m3·K)-1] | 2.2×106 |
| 岩土导热系数/[W·(m·K)-1] | 1.00 |
| 岩土定容比热/[J·(m3·K)-1] | 1.6×106 |
| 循环液导热系数/[W·(m·K)-1] | 0.59 |
| 循环液热容/[J·(m3·K)-1] | 4.19×106 |
| 循环液动力黏度/[kg·(m·s)-1] | 1.14×10-3 |
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同轴套管式地热井换热模型详细参数[20]
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| 参数名称 | 参数值 |
| 模拟区域深度/m | 3 600 |
| 井孔深度/m | 3 500 |
| 井孔半径/m | 0.15 |
| 外管外半径/m | 0.11 |
| 外管内半径/m | 0.1 |
| 外管导热系数/[W·(m·K)-1] | 41 |
| 外管定容比热/[J·(m3·K)-1] | 3.8×106 |
| 内管外半径/m | 0.07 |
| 内管内半径/m | 0.06 |
| 内管导热系数/[W·(m·K)-1] | 0.4 |
| 内管定容比热/[J·(m3·K)-1] | 2.2×106 |
| 岩土导热系数/[W·(m·K)-1] | 1.00 |
| 岩土定容比热/[J·(m3·K)-1] | 1.6×106 |
| 循环液导热系数/[W·(m·K)-1] | 0.59 |
| 循环液热容/[J·(m3·K)-1] | 4.19×106 |
| 循环液动力黏度/[kg·(m·s)-1] | 1.14×10-3 |
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