water percolation

Based on the literature researches, considered the complex permeability characteristics of low permeability gas reservoirs, a three-dimension gas-water two-phase percolation mathematical model is established, which reflects the concrete influence factors, such as low velocity non-Darcy flow, starting pressure gradient and slippage effect.

本文基于国内外文献调研成果，针对低渗透气藏的复杂渗流特征，建立了低渗透气藏低速非达西流动三维、气-水两相渗流数学模型，该模型考虑启动压力梯度和滑脱效应的影响。

互联网摘选

The effects of the adsorbed water layers on rule of water percolation were briefly investigated by using the result.

利用这一结果，研究吸附水层对油藏中水渗流规律的影响。

互联网摘选

It's structure must be air tightness, no water percolation and no air leakage. Countermeasures against Gas Leakage from Bell Socket of Cast-iron Pipe after Natural Gas Conversion

结构要求密闭，不渗水、不漏气。天然气置换后铸铁管承插接口漏气对策

互联网摘选

Impermeable clay limits downward percolation of water and fulvic acids, reducing chemical weathering and podzolization.

不可渗透的粘土限制了水和黄腐酸的向下渗透，从而减少了化学风化和土壤灰化作用。

互联网摘选

Influential mechanism of adsorbed water layers on percolation in low permeability oil reservoir

吸附水层对低渗透油藏渗流的影响机理

互联网摘选

The whole flavones obtained from leaves of hawthorn by the methods of boiling water, alcohol extraction, dilute alcohol percolation, lead salt sedimentation and lime cream sedimentation were extracted.

采用水煮醇提法、稀醇渗漉法、铅盐沉淀法和石灰水沉淀法所提得山楂叶总黄酮，顺次以石油醚、乙醚、乙酸乙酯和正丁醇进行萃取。

互联网摘选