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Rock Properties

Wellsite Services - Pull Out of Hole Simulation (POOH)


The POOH is a series of simulation models used to optimize the rate at which the cores are retrieved from the wellbore. Cores and the associated fluids within the core can be damaged if they are retrieved too rapidly. These models provide a conservative rate schedule to ensure quality core are received for evaluation.


Wellsite Services - Pull Out of Hole Simulation (POOH) includes:

Oil Simulation

The Oil simulator predicts the amount of gas evolved from the oil and the internal pressures created. The calculated rates of withdrawal allows for the relief of the ressures to ensure the internal pressure does not exceed the rock strength.


Dry Gas Simulation

The Gas simulator predicts the amount of gas expansion and the internal pressures created. The calculated rates of withdrawal allows for the relief of the pressures to ensure the internal pressure does not exceed the strength of the rock. Total volume of gas liberated during the trip is predicted to aid in understanding interpretation of desorption services.


Condensate Simulation

The Condensate simulator predicts the amount of gas expansion and the internal pressures created. The calculated rates of withdrawal allows for the relief of the pressures to ensure the internal pressure does not exceed the strength of the rock. Estimates of the volume of condensate oil are predicted. Total volume of gas liberated during the trip and the volume of condensed hydrocarbons are predicted to aid in understanding interpretation of desorption services.


Thermal Simulation

Thermal simulation is use to ensure that cores retrieved from extreme temperatures have time to cool and pore pressure relieved before reaching the surface to insure that the fluid (water and oil ) saturations are not reduced by thermal evaporation.