钻井液与完井液2017，Vol.34Issue(5)：54-57,4.DOI:10.3969/j.issn.1001-5620.2017.05.010
温度对盐水导热系数影响的实验研究
Study on Effects of Temperature on Coefficient of Heat Conductivity of Saltwater
李怀科 1刘卫丽1
作者信息
- 1. 中海油田服务股份有限公司油田化学研究院,河北燕郊 065201
- 折叠
摘要
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.关键词
导热系数/温度/热线法/盐水Key words
Coefficient of heat conductivity/Temperature/Hot-wire method/Saltwater分类
能源科技引用本文复制引用
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):54-57,4.
