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- During the process of the deviation,it considers the effect of non Darcy flow and the anisotrophy of gas layers on the productivity of horizontal wells. 从表皮因子的概念出发,推导出非达西流下水平井裸眼完井表皮因子的解析模型,并用有限元法计算结果验证了所推导模型的正确性。
- According to the additional flow resistance areas formed by sand control measures and corresponding skin factors,considering the non Darcy flow, the calculation method of NPI and PR is educed. 结合防砂前油井流入动态,根据当量产能比可预测防砂后油井流入动态。
- Based on Darcy's law,one kind of the equation for gas flow in coal seams has been correctedand reestablished in this paper. 本文在达西定律基础上,修正了一类煤层瓦斯流动方程。
- Pressure Drop Calculation Of Non Darcy Flow At High Velocity For Gas Well 气井高速非达西流动附加压降计算公式的修正
- As liquids and gas flow, they are called fluids. 由于液体和气体能流动,因此称为流体。
- As liquids and gas flow, they are called...uids. 由于液体和气体能流动,因此称为流体。
- Check to confirm the argon gas flow is on and with ample flow. 检查氩气流量是否开启,并具有足够的流量。
- A mathematical model of two phase non Darcy percolation has been established for reservoirs with anisotropic dual media of low permeability, and is solved by using finite difference method. 注水开发这种油藏时,见水前注入率不能太大;见水后可适当增大注入率(存在一最佳注入率),以减弱非达西流的影响,对于低渗双重介质油藏开发有重要指导意
- The exciter could select loudhailer or gas flow of injector. 激励源为扬声器或者喷嘴气流。
- Decreasing the gas flow rate leads to pressure undershoot. 气量突降时,膨胀波沿程传播。
- Keywords Low permeability pools;Low velocity;Non Darcy flow;Gas well;Well testing;Boundary condition;Laplace transform;Iteration.; 低渗透油气藏;低速;非达西渗流;气井;试井;边界条件;拉普拉斯变法;迭代法;
- Gas flowing through the pipes burns instantly but can be kept under control easily by opening or closing the pipes. 通过管子的煤气会瞬间燃烧起来,但我们凭开、关管道很容易控制它。
- An empirical formula was given for determining the minimum inert gas flow rate. 给出了一个煤粉干燥工艺惰化设计的实例。
- The gas flow rate is one of the key design parameters for HPH furnace. 循环风量是全氢罩式退火炉的关键设计参数之一。
- Confirm carrier gas flow through the column. Immerse the end of the column in a vial of acetone and check bubbles. 确保载气通过了柱子。将柱尾端入丙酮中检查气泡。
- Keywords Low permeability pool;Porous media;Interface;Intermolecular force;Non Darcy flow;Influence; 低渗透油气藏;多孔介质;界面;分子间力;非达西流;达西渗流;影响;
- DSMC was applied to simulate microchannel gas flows. 采用DSMC方法模拟了微管道气体流动;
- The core of the gas flow can be considered to be remote from viscous or heat transfer effects. 气流的中心部份可以认为是与粘性或传热效应关系不大。
- The main drawback is that the very large tonnage of gas flow must be shifted from one vessel to the other. 主要缺点是大量的气流从一个容器流向另一个。
- Keywords Low permeability reservoir;Bingham fluid;Starting pressure gradient;Non Darcy flow;Water cut;Water saturation;Water drive;Drainage front;Development index; 低渗储集层;宾厄姆流体;启动压力梯度;非达西流;含水率;含水饱和度;水驱;排驱前缘;开发指标;