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首页> 外文会议>2010 international symposium on multi-field coupling theory of rock and soil media and its applications >The Numerical Analysis of the Low Permeability Gas Reservoir in Consideration of Klinkenberg Effect and STart-up Pressure Gradient
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The Numerical Analysis of the Low Permeability Gas Reservoir in Consideration of Klinkenberg Effect and STart-up Pressure Gradient

机译：考虑克林肯贝格效应和分段压力梯度的低渗气藏数值分析

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摘要

This research on seepage flow of the low permeability gas reservoir will take into account the influence caused by Klinkenberg effect and start-up pressure gradient. Based on Darcy percolation theory, establish mathematical models on the premise of regarding the influence to the seepage law of the low permeability gas reservoir, owing to Klinkenberg effect and start-up pressure gradient. Then, simulate the capacity through adjusting supply oil radius, bottom-hole pressure and water saturation. Result displays: the influence of Klinkenberg effect and start-up pressure gradient reduce as the supply oil radius increase;the influence of Klinkenberg effect is deeper than start-up pressure gradient, when the bottom-hole pressure difference grows;However, if water saturation over range a fixed number, on the contrary, the influence of start-up pressure gradient will be deeper than that.
机译：对低渗透气藏的渗流研究将考虑克林肯贝格效应和启动压力梯度的影响。基于达西渗流理论，在考虑克林根贝格效应和启动压力梯度的情况下，在考虑对低渗透气藏渗流规律影响的前提下建立数学模型。然后，通过调节供油半径，井底压力和含水饱和度来模拟产能。结果显示：随着供油半径的增加，克林根贝格效应和启动压力梯度的影响减小;当井底压力差增大时，克林根贝格效应的影响比启动压力梯度更深;但是，如果水饱和相反，如果超出一定范围，则启动压力梯度的影响会更大。

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