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。
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。
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。
A new coalbed methane transient seepage flow model with multi-wells is developed by considering the wellbore storage and skin effect.
建立了在多井条件下考虑井筒储存和表皮效应的煤层气不定常渗流模型。
Meanwhile, reverse imbibitions water blockage effect would be appeared to further damage the near the wellbore formation, especially in the low permeability and low productivity condensate gas Wells.
同时,在近井带还会形成反渗吸水锁效应,从而进一步加剧近井带地层伤害,对低渗低产凝析气井,这一现象尤为严重。
Therefore, we can reduce the effect of frictional loss in the wellbore by drilling well with larger diameter or producing with small production rate.
因此,可以通过钻较大直径的井眼或控制井以小产量生产来减小井筒压降损失的影响。
Under production with constant pressure, the pressure loss in the wellbore has obvious effect on the production rate at the initial period.
当定压生产时,井筒压降损失在生产初期对产量影响较为明显。
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 paper deals with the model of a pulsing theory considering wellbore storage and wall skin effect.
本文给出考虑井筒储存和井壁的表皮效应的脉冲试井理论模型。
Electrothermal lifting by wellbore Kelvin effect is the best support technique for heavy oil recovery at present.
井筒集肤效应电热举升工艺技术是目前稠油开采中最佳的配套技术。
Using thermal elastic mechanics illustrate changing of stress field caused by temperature changing of well wall and describe the change of temperature effect on stability of wellbore.
应用热弹性力学方法求解井壁由于温度变化而导致的应力场变化,并定量地给出温度变化对井壁稳定的影响,对深井安全施工有一定指导意义。
The result shows that coal seam wellbore unstability is a synthetic effect caused by such factors as physics, chemistry, mechanics and machinery.
着重探讨了煤层并壁不稳定机理,结果表明,煤层井壁不稳定是物理、化学、力学与机械等因素的综合效应。
The model takes into account the effect of the heat transfer in the wellbore and fractures during fracturing fluid injection on fracture geometry.
该模型考虑了注液过程中的井筒温度变化和裂缝中的热交换对裂缝几何形态的影响。
Because of the effect of turbulent flow near the wellbore zone, Darcy's law for the plane radial flow can't completely apply to the oil Wells of high velocity turbulent flow.
对于具有高速流动的油井,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。
During the test, the rock deformation built up a permeability drawdown cone around the wellbore of Well Kela 205, but the decline scope is small and its effect on productivity is not serious.
测试过程中岩石变形使近井区域形成了一个渗透率下降漏斗,但下降的幅度较小,对气井产量的影响也不大。
It is important to improve the heat insulation effect of wellbore by some methods for ensuring the efficiency of thermal recovery.
采用一定技术手段保证井筒隔热效果,对保持稠油热采效率起重要作用。
As improved measurement tools reveal smaller wellbore features, there is a growing body of work aimed at measuring the physical effect of the flaws.
由于改进的测量工具能够显示出更加细微的井身特征,因此为测量出井身缺陷的物理影响,我们还需要做大量的工作。
Some measures are suggested to improve the effect of wellbore heating.
提出了改善循环效果的措施。
The loss of the energy would effect on the effectiveness of hot mining during injecting the steam into underground, especially, the energy loss of wellbore is serious.
注汽过程中的能量损失,特别是井筒中的能量损失,直接影响热采效果。
The model is applied in evaluation of rock mechanics and wellbore stability in some areas, and it wins a good effect.
并将建立的模型应用于某地区的岩石力学参数及井眼稳定性评价中,现场应用取得了很好的效果。
The double logarithmic curve could be divided into four stages-wellbore storage effect reaction stage, fracture reaction stage, vug reaction stage, and boundary reaction stage.
第四段为边界反应阶段,由于忽略基质渗流,故可视为封闭边界,导数曲线上升。
The double logarithmic curve could be divided into four stages-wellbore storage effect reaction stage, fracture reaction stage, vug reaction stage, and boundary reaction stage.
第四段为边界反应阶段,由于忽略基质渗流,故可视为封闭边界,导数曲线上升。
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