Application of this technology can enhance heat insulation effect of wellbore, decrease thermal lost, supplement energy and adjust vapor-sucking section.

实践表明，该项技术的应用提高了井筒隔热效果，降低了热损失，同时又补充了能量，调整了吸汽剖面。

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Formulae were derived to predict additional pressure drops due to mechanical skin and non-Darcy effect in the perforation radial flow and wellbore radial flow.

在射孔径向流和井筒径向流中，推导出了机械表皮因子和非达西流影响引起的附加压力降的表达式。

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Since turbulence effect appears near wellbore in oil well with high-speed flow, Darcy's Law for flat radial flow is incompletely applicable.

高速流动的油井，由于在井底附近地带存在湍流的影响，达西定律的平面径向流动已不完全适用。

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