Article(id=1221455970715227033, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221455967863095805, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202209208, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1663862400000, receivedDateStr=2022-09-23, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1769147396973, onlineDateStr=2026-01-23, pubDate=1677254400000, pubDateStr=2023-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769147396973, onlineIssueDateStr=2026-01-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769147396973, creator=13701087609, updateTime=1769147396973, updator=13701087609, issue=Issue{id=1221455967863095805, tenantId=1146029695717560320, journalId=1210938733613449225, year='2023', volume='52', issue='2', pageStart='1', pageEnd='161', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769147396292, creator=13701087609, updateTime=1769147501806, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1221456410462834874, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221455967863095805, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1221456410462834875, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1221455967863095805, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=54, endPage=63, ext={EN=ArticleExt(id=1221455970987856802, articleId=1221455970715227033, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Heat transfer capacity of middle-deep coaxial casing heat exchanger in Guanzhong area and the improvement measures, columnId=1221455968798425603, journalTitle=Thermal Power Generation, columnName=Research of thermal energy storage technology, runingTitle=null, highlight=null, articleAbstract=

The coaxial casing heat exchanger is one of the technologies to realize high efficient heat extraction in the middle and deep geothermal energy wells, and its heat transfer capacity is crucial to the sustainable development of geothermal system. Taking Guanzhong area as an example, the heat transfer model of coaxial casing heat exchanger in middle-deep geothermal wells is established considering the formation inhomogeneity, and the effects of injection temperature, injection flow rate, buried depth and other factors on its heat extraction performance are studied. The influences of injection temperature and injection flow rate on thermal reservoir temperature recovery under intermittent production condition are discussed. The results show that, the outlet fluid temperature decreases with the increasing of injection flow rate, but the heat extraction power of the whole system increases. Increasing the injection temperature can improve the outlet fluid temperature, but the system heat extraction power decreases greatly. With the increasing of formation depth, the temperature of outlet fluid and heat extraction power increase gradually. Reducing the inner pipe diameter and enlarging the outer pipe diameter can effectively improve the temperature of outlet fluid and heat extraction power. The temperature recovery ability of the thermal reservoir increases with the injection flow and injection temperature. Reducing the thermal conductivity of inner pipe or choosing double-layer inner pipe structure can reduce the fluid temperature loss along the inner tube and increase the outlet fluid temperature.

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同轴套管换热器是实现中深层地热能井下高效取热技术之一,其换热能力对地热系统的可持续开发至关重要。以关中地区为例,考虑地层不均匀性建立中深层地热井同轴套管传热计算模型,研究注入温度、注入流量、埋管深度等因素对其取热性能的影响,探讨间歇开采工况下注入温度和注入流量对热储层温度恢复的影响。结果表明:随着注入流量增加,出口流体温度下降,但整个系统的取热功率提高;当注入温度较高时,可有效提高出口流体温度,但系统取热功率降幅较大;随着地层深度增加,出口流体温度和取热功率逐渐上升;减小内管管径,增加外管管径,可有效提高出口流体温度和取热功率;热储层温度恢复能力随注入流量和注入温度的升高而提高;通过降低内管导热系数或选用双内管结构可以降低内管流体沿程温度损失,提高系统的出口流体温度。

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张杰(1987),男,副教授,主要研究方向为清洁能源安全高效利用、管道力学等,

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张杰(1987),男,副教授,主要研究方向为清洁能源安全高效利用、管道力学等,

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张杰(1987),男,副教授,主要研究方向为清洁能源安全高效利用、管道力学等,

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关中地区中深层同轴套管换热器换热能力及提升措施研究
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张杰 1, 2 , 王贵洋 1, 2 , 王鹏涛 3, 4
热力发电 | 热储能技术研究 2023,52(2): 54-63
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热力发电 | 热储能技术研究 2023, 52(2): 54-63
关中地区中深层同轴套管换热器换热能力及提升措施研究
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张杰1, 2 , 王贵洋1, 2, 王鹏涛3, 4
作者信息
  • 1.西南石油大学机电工程学院,四川 成都 610500
  • 2.西南石油大学地热能研究中心,四川 成都 610500
  • 3.中石化绿源地热能(陕西)开发有限公司,陕西 咸阳 712000
  • 4.陕西省“四主体一联合”地热能校企联合研究中心,陕西 咸阳 712000
  • 张杰(1987),男,副教授,主要研究方向为清洁能源安全高效利用、管道力学等,

Heat transfer capacity of middle-deep coaxial casing heat exchanger in Guanzhong area and the improvement measures
Jie ZHANG1, 2 , Guiyang WANG1, 2, Pengtao WANG3, 4
Affiliations
  • 1.School of Mechatronic Engineering, Southwest Petroleum University, Chengdu 610500, China
  • 2.Geothermal Energy Research Center, Southwest Petroleum University, Chengdu 610500, China
  • 3.Sinopec Green Energy Geothermal Development Co., Ltd., Xianyang 712000, China
  • 4.Geothermal University-Enterprise Joint Research Center of Shaanxi "Four Subjects and One Joint", Xianyang 712000, China
出版时间: 2023-02-25 doi: 10.19666/j.rlfd.202209208
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同轴套管换热器是实现中深层地热能井下高效取热技术之一,其换热能力对地热系统的可持续开发至关重要。以关中地区为例,考虑地层不均匀性建立中深层地热井同轴套管传热计算模型,研究注入温度、注入流量、埋管深度等因素对其取热性能的影响,探讨间歇开采工况下注入温度和注入流量对热储层温度恢复的影响。结果表明:随着注入流量增加,出口流体温度下降,但整个系统的取热功率提高;当注入温度较高时,可有效提高出口流体温度,但系统取热功率降幅较大;随着地层深度增加,出口流体温度和取热功率逐渐上升;减小内管管径,增加外管管径,可有效提高出口流体温度和取热功率;热储层温度恢复能力随注入流量和注入温度的升高而提高;通过降低内管导热系数或选用双内管结构可以降低内管流体沿程温度损失,提高系统的出口流体温度。

中深层地热井  /  同轴套管换热器  /  取热功率  /  间歇开采  /  热储层温度恢复

The coaxial casing heat exchanger is one of the technologies to realize high efficient heat extraction in the middle and deep geothermal energy wells, and its heat transfer capacity is crucial to the sustainable development of geothermal system. Taking Guanzhong area as an example, the heat transfer model of coaxial casing heat exchanger in middle-deep geothermal wells is established considering the formation inhomogeneity, and the effects of injection temperature, injection flow rate, buried depth and other factors on its heat extraction performance are studied. The influences of injection temperature and injection flow rate on thermal reservoir temperature recovery under intermittent production condition are discussed. The results show that, the outlet fluid temperature decreases with the increasing of injection flow rate, but the heat extraction power of the whole system increases. Increasing the injection temperature can improve the outlet fluid temperature, but the system heat extraction power decreases greatly. With the increasing of formation depth, the temperature of outlet fluid and heat extraction power increase gradually. Reducing the inner pipe diameter and enlarging the outer pipe diameter can effectively improve the temperature of outlet fluid and heat extraction power. The temperature recovery ability of the thermal reservoir increases with the injection flow and injection temperature. Reducing the thermal conductivity of inner pipe or choosing double-layer inner pipe structure can reduce the fluid temperature loss along the inner tube and increase the outlet fluid temperature.

middle-deep geothermal well  /  coaxial casing heat exchanger  /  heat extraction power  /  intermittent production  /  temperature recovery ability of thermal reservoir
张杰, 王贵洋, 王鹏涛. 关中地区中深层同轴套管换热器换热能力及提升措施研究. 热力发电, 2023 , 52 (2) : 54 -63 . DOI: 10.19666/j.rlfd.202209208
Jie ZHANG, Guiyang WANG, Pengtao WANG. Heat transfer capacity of middle-deep coaxial casing heat exchanger in Guanzhong area and the improvement measures[J]. Thermal Power Generation, 2023 , 52 (2) : 54 -63 . DOI: 10.19666/j.rlfd.202209208
  • 四川省青年科学基金(2022NSFSC1249)
  • 四川省科技创新苗子工程(2022033)
2023年第52卷第2期
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文章信息
doi: 10.19666/j.rlfd.202209208
  • 接收时间:2022-09-23
  • 首发时间:2026-01-23
  • 出版时间:2023-02-25
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出版历史
  • 收稿日期:2022-09-23
基金
Sichuan Youth Science Foundation(2022NSFSC1249)
四川省青年科学基金(2022NSFSC1249)
Sichuan Science and Technology Innovation Miao Project(2022033)
四川省科技创新苗子工程(2022033)
作者信息
    1.西南石油大学机电工程学院,四川 成都 610500
    2.西南石油大学地热能研究中心,四川 成都 610500
    3.中石化绿源地热能(陕西)开发有限公司,陕西 咸阳 712000
    4.陕西省“四主体一联合”地热能校企联合研究中心,陕西 咸阳 712000
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2种不同金属材料的力学参数

Family
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种数
Number of
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种数
Number of
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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