This paper introduce gas Mass Flow Controller principle of operating application for core permeability detection and some factors that influence its test performance.
本文介绍气体质量流量控制器的工作原理和在岩心渗透率测试中的应用，以及影响其测试性能的几个因素。
One of the main methods to test the gas permeability is using partial pressure difference.
用压差法测试塑料薄膜的透气性，是一个长期使用的主流测试方法。
There exist big differences in studied result with different test methods for dense reservoir rock in low permeability gas pool is sensitive to the stress.
致密低渗气藏开发过程中储集层存在应力敏感，不同的试验方法评价结果差异很大。
This test method has the advantages of simple on the operation and good of airproofness. It is believable and reasonable to use this method for assessing the gas permeability property of concrete.
实验证实，本方法具有操作简便、密封性能好、测试数据可靠的特点，以此方法来评价混凝土的气体渗透性能是合理可信的。
The results of the test have shown that the operating technology for colloidal silicate binding is comparatively simple and the strength and gas permeability of the mold are comparatively good.
通过与硅酸乙酯水解液粘结剂的比较表明，以硅溶胶作为透气性金属陶瓷材料的粘结剂，其材料的制造工艺简单、强度较高、透气性较好。
According to limitation of conventional deliverability testing method applied in gas reservoir of low permeability, a new, reduced well testing method for deliverability test is put forward.
针对常规产能试井方法在低渗透气藏中应用的局限性，提出了新的、简化的产能试井方法。
When studying the conventional deliverability analysis of the tight gas reservoir, the tight gas reservoir will always need long test time to stabilize due to its low permeability.
对致密气藏进行常规产能分析时，由于渗透率极低，要达到稳定通常需要很长的测试时间。
It is shown from field examples that the results obtained are satisfactory and the new method is proved to be an effective one for analyzing well test data in low-permeability gas reservoir.
通过矿场实例分析表明，本文方法效果较好，这为解释低渗透气井试井数据找到了一种行之有效的方法。
On the basis of the mathematical model, well test design theory of low permeability gas reservoirs is studied.
并以此为基础，开展了低渗透气藏气井试井设计理论与方法研究。
Experimental study was conducted on the influence of pore gas pressure upon gas permeability with gas permeation test device.
运用瓦斯渗透测试设备，进行孔隙气压对煤体渗透性影响的实验研究。
So it is necessary to further study on well test design theory of low permeability gas reservoirs.
因此，有必要深入研究低渗透气藏气井试井设计理论与方法。
Water injection is always difficult in low permeability reservoirs, to improve the working degree of this reservoir, Wei42 14 well group was selected to conduct the nitrogen gas flooding pilot test.
低渗透油藏的注水往往存在很大困难，为提高此类油藏的动用程度，选择卫4 2 14井组实施了氮气驱先导试验。
Water injection is always difficult in low permeability reservoirs, to improve the working degree of this reservoir, Wei42 14 well group was selected to conduct the nitrogen gas flooding pilot test.
低渗透油藏的注水往往存在很大困难，为提高此类油藏的动用程度，选择卫4 2 14井组实施了氮气驱先导试验。
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