Thus it is of great significance to both evaluating the mud ability to stop gas in diffusionphase and estimating the gasdiffusion amount.
对于准确评价泥岩阻止扩散相天然气能力和估算天然气扩散都具有重要意义。
2
The petroleum migration mainly in an oil phase, as for natural gas migration, it can occur in water-solution, oil-solution, free gas and diffusionphase.