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Flowmeters are used to measure liquid/gas products. Turbine flowmeters are an effective means of accurate measurement of liquid/gas products in many industries. Because of the turbine meter's versatility and flexibility in product metering applications, it is one of the most widely used technologies in flow measurement. Turbine meters were invented in the 18th century by Reinhard Woltman, and at that time were used for water-flow measurement. In the 1950s, turbine meters were first used for hydrocarbon measurement for aeronautical applications within aircraft.
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The standard fluid flow equations require modification when the reservoir content is gas or multiphase flow is occurring. This article discusses those modifications and the equations to use for gas or multiphase reservoirs. This form of the diffusivity equation is linear, which makes solutions (such as theEi-function solution) much easier to find and which allows us to use superposition in time and space to develop solutions for complex flow geometries and for variable rate histories from simple, single-well solutions. Other forms of the equation for flow of gases must be developed because the equation of state for a slightly compressible liquid will not be applicable. This equation can be partially linearized by introducing the pseudopressure transformation,[1] Eq. 4 has the same form as the diffusivity equation for slightly compressible liquids, with pressure replaced by pseudopressure,pp. However, this equation is nonlinear because the productฮผct is a strong function of pressure.
- Reservoir Description and Dynamics > Reservoir Fluid Dynamics > Flow in porous media (1.00)
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- Production and Well Operations > Well & Reservoir Surveillance and Monitoring > Downhole and wellsite flow metering (0.72)
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An experimental number used in fluid flow to predict the flow velocity at which the flow regime moves from laminar flow through a transition range and into turbulent flow. It is the dimensionless ratio of inertial forces to viscous forces in flowing fluids. It may be viewed as a ratio of the shear stress due to turbulence to the shear stress due to viscosity. Flow with a Reynolds number less than 2000-4000 is laminar flow; that with a Reynolds number greater than 2000-4000 is turbulent flow.
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- Reservoir Description and Dynamics > Formation Evaluation & Management > Tracer test analysis (0.40)
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- Reservoir Description and Dynamics > Reservoir Fluid Dynamics > Flow in porous media (1.00)
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