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- 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
- 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。
- 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;
- 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;
- 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;
- Non Darcy flow 非达西流
- Air, gas or steam enters the separator at high velocity. 空气，气体或蒸汽以很高的速度进入分离器。
- The APU exhaust conducts the engine exhaust gas overboard and reduces the noise level of the high velocity gas flow. APU排放口引导发动机排出气体到外面并降低高速气流的噪音。
- Turbulence factoris more important parameter for study non-Darcy flow with high velocity. 研究高速非达西渗流,最重要的是确定紊流系数。
- The top- and bottom-guided disc assures perfect seat and disc alignment in spite of side thrust caused by high velocity flow. 顶部和底部导向的阀瓣确保阀座和阀瓣的精确对准不受高速流体所产生的侧面推力的影响。
- A centrifuge is a device for whirling an object with a high velocity. 离心机是使物体作高速旋转的装置。
- These investigate provide some benefit information to treat with low consistence?high velocity of flow?high wind quantity odor. 这些研究为等离子体技术降解低浓度、高流速、大风量恶臭气体提供了有益的信息。
- Also, the valves may be damaged by the high velocity across the seats. 此外，通过阀座的高流量还可能损坏阀门。
- It concludes that percolation of roller compact concrete is of self-compactness by time effect under continuous action of water head and there may exist partial Darcy flow regime in roller compact concrete under high water head. 认为在持续水头作用下，碾压混凝土的渗透具有时效自密性；高水头作用下的碾压混凝土可能存在偏达西流现象。
- Threaded seat rings for valves in services with high velocity (turbulent) flow or thermal cycling should be lock welded to the body to avoid loosening. Please specify. 如果阀门用在高速流体(湍流)或热循环应用环境中,则螺纹阀座环应该锁焊到阀体上,避免松落。请在订购时加以指定说明。
- "Z( j2 h7 E0 Q z* ?Threaded seat rings in valves in services with high velocity (turbulent) flow or thermal cycling should be lock welded to the body to avoid loosening. 当用于高速流体(湍流)或热循环应用时，为了避免松开，螺纹阀座环应该锁焊在阀体上。
- 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
- Liu Zhenhua.Study on heat transfer of high velocity two-phase flow of subcooled water and air in a heated narrow-tube[J].Proceedings of the CSEE,1999,19(6):80-84(in Chinese). [6]刘振华.;细小传热管内过冷水和空气高速两相流的换热特性研究[J]
- Threaded seat rings in valves in services with high velocity (turbulent) flow or thermal cycling should be lock welded to the body to avoid loosening. Please specify. 当用于高速流体(湍流)或热循环应用时，为了避免松开，内螺纹阀座环应该锁焊在壳体上。请在订购时加以指定说明。
