Determination of Bottom Hole Pressure in a Flowing Gas Well.

A new method has been developed for calculating flowing bottom hole pressure in a gas well, using as a basis the general energy equation. Fundamentally, the method shows that a plot of flowing pressure versus depth for a gas well can be represented as a series of incremental .straight lines, with the accuracy increasing as the number of increments increase. It is shown mathematically that for most cases the slope of the flowing pressure versus depth curve is essentially constant, in which case a single calculation based on surface conditions will yield acceptable results.
Keywords: Calculations, compressibility factor, dl, Handbook of Natural Gas Engineering, kinetic energy, linear function, energy, flow, Friction, Pressure, Slopes, Temperature, Wells, Yield
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