... directly to the plain hydraulic analysis. production control compressors engines and turbines psig 2217 production logging mol hydrogen admixture pipeline production monitoring upstream oil & gas compressibility factor diameter psig martin stýblo barg wobbe index natural gas...

... to estimate pressure and temperature profiles, while the gas density is calculated by an explicit equation of state for real gas. The effect of seven different models for natural gas compressibility factor are verified on the Pig tracking model. Additionally, the influence of the temperature profile...

... with the method of lines is adopted to allow for estimation of the magnitude of the model terms. Sensitivity of pipeline flow model to the choice of heat transfer model, and to the accuracy of compressibility factor, heat capacity and friction factor calculations is investigated. The influence of the selection...

... concerning the friction factor and the compressibility factor. The second level is conservation of mass. As a result of these two levels there is the concept of time constant of a pipeline. At the third level the temperature behavior will be analyzed. At the fourth level the Zhukovsky shock is shown. 1...

.... [psia] 2p : Outlet Pressure. [psia] g : Acceleration of Gravity. [ft/ s2] x : Pipeline length. [mi] : Slope. Z : Compressibility Factor. Rm : Gas Constant. [psi*ft/(lbmol*°R)] t : Gas Temperature. [°R] f : Friction Factor. e : 2.71828 Z Compressibility factor There is a lot of procedures...

..., the pipe flow is treated as a nonisothermal unsteady one-dimensional compressible flow. This is accomplished by treating the compressibility factor as a function of pressure and temperature, and the friction factor as a function of Reynolds number. The solution method is the fully implicit finite...

... equation compressibility factor pipe efficiency steady state measurement and control piping design modeling & simulation upstream oil & gas production monitoring viscosity piping simulation equation colebrook production logging reservoir surveillance prediction operation friction...