Posted in Basic Petroleum Engineering Inflow and Outflow Performance PETROLEUM ENGINEERING

Skin Model

Mechanical/Geometrical Skin If a reliable skin value is available from transient well testing, then this value should be directly entered…

Posted in Basic Petroleum Engineering PETROLEUM ENGINEERING Production Engineering Reservoir Engineering

Z Factor

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Posted in Artificial Lift Basic Petroleum Engineering ESP Gaslift Jet Pump PCP PETROLEUM ENGINEERING Production Engineering Rod Pump

Shut-in Well Head Pressure

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Posted in Basic Petroleum Engineering Inflow and Outflow Performance PETROLEUM ENGINEERING

Well Inflow Performance

Well Inflow Performance represents the relationship between pressure and flow rate at the well face of an individual well. The…

Posted in Basic Petroleum Engineering Inflow and Outflow Performance PETROLEUM ENGINEERING

Introduction to IPR and VLP

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Posted in Basic Petroleum Engineering Inflow and Outflow Performance PETROLEUM ENGINEERING

Vogel’s inflow performance relationship

In 1968, Vogel established an empirical relationship ( Vogel’s inflow performance relationship )for flowrate prediction of a solution gas-drive reservoir…

Posted in Basic Petroleum Engineering Inflow and Outflow Performance PETROLEUM ENGINEERING

The Composite Inflow Performance Relationship

The Composite Inflow Performance Relationship is based on the combination of PI model, presented in the previous articles “Well Inflow Performance”,…

Posted in Basic Petroleum Engineering Inflow and Outflow Performance PETROLEUM ENGINEERING

Pressure Gradient

Pressure and depth: “Pressure and Depth” is the FUNDAMENTAL relationship in the oil industry. Your understanding of the concept is crucial….

Posted in Basic Petroleum Engineering Inflow and Outflow Performance PETROLEUM ENGINEERING

Pressure drawdown & Skin Factor

Pressure Drawdown: Pressure Drawdown (∆P) is defined as the difference between the static bottom hole pressure (SBHP) and the flowing bottom…

Posted in Basic Petroleum Engineering Inflow and Outflow Performance PETROLEUM ENGINEERING

Multiphase Flow Properties & Pressure Gradient Calculation

For oil wells, the main component of pressure loss is the gravity or hydrostatic term.  Calculation of the hydrostatic pressure…

Posted in Basic Petroleum Engineering Inflow and Outflow Performance PETROLEUM ENGINEERING

Multiphase flow correlations

The primary purpose of a multiphase flow correlations is to predict the liquid holdup (and hence the flowing mixture density) and the…

Posted in Basic Petroleum Engineering Inflow and Outflow Performance PETROLEUM ENGINEERING

Outflow Performance Correlation Selection

There is no universal rule for selecting the best flow correlation for a given application. When an outflow performance simulator…