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温度对盐水导热系数影响的实验研究

李怀科,  刘卫丽

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文章导航 > 钻井液与完井液  > 2017 >  34(5): 54-57
李怀科, 刘卫丽. 温度对盐水导热系数影响的实验研究[J]. 钻井液与完井液, 2017, 34(5): 54-57. doi: 10.3969/j.issn.1001-5620.2017.05.010
引用本文: 李怀科, 刘卫丽. 温度对盐水导热系数影响的实验研究[J]. 钻井液与完井液, 2017, 34(5): 54-57. doi: 10.3969/j.issn.1001-5620.2017.05.010
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LI Huaike, LIU Weili. Study on Effects of Temperature on Coefficient of Heat Conductivity of Saltwater[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(5): 54-57. doi: 10.3969/j.issn.1001-5620.2017.05.010
Citation: LI Huaike, LIU Weili. Study on Effects of Temperature on Coefficient of Heat Conductivity of Saltwater[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(5): 54-57. doi: 10.3969/j.issn.1001-5620.2017.05.010
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温度对盐水导热系数影响的实验研究

doi: 10.3969/j.issn.1001-5620.2017.05.010

  • 中海油田服务股份有限公司油田化学研究院, 河北燕郊 065201

详细信息
    作者简介:

    李怀科,高级工程师,1983年生,硕士研究生,主要从事深水钻完井液技术研究。电话(0316)3367036;Email:lihk6@cosl.com.cn。

  • 中图分类号: TE257.6

Study on Effects of Temperature on Coefficient of Heat Conductivity of Saltwater

  • Oilfield Chemistry R & D Institute, COSL, Yanjiao, Sanhe, Hebei 065201

    摘要
  • 摘要: 为探讨温度对盐水导热系数的影响，特别是深水低温条件下的导热系数，采用瞬态热线法测定不同温度下（4～60℃）下5种常用盐水溶液的导热系数，并分析了温度对每种盐导热系数的影响。实验结果表明，对于待测盐水体系而言，相同浓度下，每种盐的导热系数与温度的变化趋势相同，即4～20℃低温段，盐的导热系数曲线缓慢增长，随后温度对导热系数的影响逐渐增大；相同温度下，导热系数随着盐浓度的升高而降低。文中还对现场2口深水井所用的盐水测试液的导热系数进行了室内测定，结果发现，2种配方的导热系数受温度的影响较小，4℃和50℃的导热系数的差值分别为0.036、0.53 W/（m·K）；当温度高于40℃以后，2种体系的导热系数不受温度影响。

     

    Abstract: In studying the effects of temperature (especially low temperature in deep water) on the coefficient of heat conductivity (CHC) of saltwater, transient hot-wire method was adopted to measure the CHC of 5 kinds of commonly used saltwater at different temperatures (4~60℃). Analyses of the experimental data showed that, at the same salt concentration, CHC changed with temperature in similar pattern, i.e., at low temperatures (4~20℃), CHC increases slowly with temperature; at temperatures above 20℃, CHC increases fast with temperature. At the same temperature, CHC decreases with increase in salt concentration. Saltwater samples from 2 deep water wells were measured in laboratory for their CHC. It was found that CHC of the two samples was only slightly affected by temperature; the differences of CHC at 4℃and 50℃ were 0.036 W/(m·K) and 0.53 W/(m·K), respectively. At temperatures above 40℃, CHC of the two saltwater samples was not affected by changes in temperature.

     

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    • 参考文献(10)
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出版历程
  • 收稿日期:  2017-07-20
  • 刊出日期:  2017-09-30

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