With consideration of start up pressure gradient and media deformation, this paper studies vertical well production in low permeable reservoirs.
考虑启动压力梯度和介质变形的影响，研究低渗透油藏中直井产量的变化规律。
It is indicated that the main factors affecting low permeability gas reservoir are stress action, start-up pressure gradient, permeability, slippage effect, and water blocking effect etc.
结果表明影响低渗气藏的主要因素有应力作用、启动压力梯度、渗透率、滑脱效应、水锁效应等。
The method can be used to calculate the the end time of effect of wellbore storage with start-up pressure gradient considered.
该方法可用于考虑启动压力梯度影响的低渗透气藏气井井筒储集效应结束时间的计算。
The results showed that mobility and start-up pressure gradient are the main reasons of non-linear seepage flow effect.
结果表明流度与启动压力梯度是形成非线性渗流的主要因素。
The existence of start-up pressure gradient can make depressurization effect of pinnate horizontal multilateral well get worse, which promotes gas production reduced.
启动压力梯度的存在会使煤层中羽状水平井的降压效果变差，从而减少煤层气的产量。
The existence of start-up pressure gradient can make depressurization effect of pinnate horizontal multilateral well get worse, which promotes gas production reduced.
启动压力梯度的存在会使煤层中羽状水平井的降压效果变差，从而减少煤层气的产量。
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