摘要
文章在阐述气体于多孔介质中扩散理论的基础上 ,指明Fick第一、第二定律所适合的研究对象 ,并给出了建立在Fick第二定律基础上的扩散系数非稳态计算方法 ;同时 ,概述了温度压力下岩石扩散系数测试装置结构及性能。试验表明 ,该装置温度、压力控制稳定 ,系统密封性能好 ,具有操作方便、测试数据准确可靠等特点。同时 ,进行了不同条件下实验研究。
Based on the diffusion theory in the porous medium of the gas, this paper points out the research object that is suitable for the first, second law of Fick. And it offers the diffusion coefficient non steady state computational method on the basis of the second law of Fick. At the same time, the structure and performance of the rock diffusion coefficient setting are summarized. The test indicates that the temperature and the pressure of this device are controlled steadily. The sealing performance of the system is good, and the operation of the system is easy. The test data have such characteristics as accuracy and reliability etc. Meanwhile, the experiment research is carried out under different conditions.
出处
《石油仪器》
2004年第5期16-18,65-66,共3页
Petroleum Instruments
关键词
温度
压力
扩散系数
计算方法
控制装置
temperature, pressure, diffusion coefficient, computational method, setting
