PETE 401 TAMU Exam 2 Questions & Answers 2023
In multi-phase flow, there are combinations of more than one fluid (any of which can be mobile) and the simulator must keep track of the movement of all phases. - ANSWERSTrue
The basic reservoir fluid types include which of the following? - ANSW...
In multi-phase flow, there are combinations of more than one fluid (any of which can be mobile) and the
simulator must keep track of the movement of all phases. - ANSWERSTrue
The basic reservoir fluid types include which of the following? - ANSWERS-Wet Gas
-Black Oil
-Dry Gas
With the extension of the fluid flow PDE to mutiple phases, the issue on non-linearity goes away and is
no longer a factor in modeling reservoirs. - ANSWERSFalse
Which of the following are saturation-dependent functions? - ANSWERS-Relative permeability
-Capillary pressure
In multi-phase flow, we are lumping the hydrocarbon compositions of oil and gas in two components,
using their PVT relationships to characterize them. - ANSWERSTrue
For a reservoir fluid, PVT data characterizes the relationship between Porosity, Velocity and Temperature.
- ANSWERSFalse
Gravity-Capillary Equilibration initializes reservoir pressure and fluid saturations in the reservoir for you. -
ANSWERSTrue
Which of the following are sources of relative permeabilty data? - ANSWERS-Empirical correlations
-Laboratory measurements
, An important characteristic of both Stone's Model 1 and Model 2 Relative Permeability correlations is
that they reduce to a 2-phase flow equivalent when one of the phases becomes immobile. -
ANSWERSTrue
Model initialization is the process of setting up the starting conditions of your model at time, t=0. -
ANSWERSTrue
Truncation error arises from replacement of differential equations with difference equations. -
ANSWERSTrue
Which of the following is not a source of error in the results of a simulation model? -
ANSWERSDesynchronized cardinal grameters
Explicit formulations, such as IMPES, can cause slight errors to grow exponentially, making the results of
the simulation more accurate. - ANSWERSFalse
The reservoir description used in a simulation model is usually the greatest source of error in a model. -
ANSWERSTrue
In CMG, the .OUT file usually includes a copy of the input data contained in the .DAT file. - ANSWERSTrue
Which of the following are included in the output of simulation results? - ANSWERS-Pressure-dependent
porosity and permeability
-Concentrations
-Pressures
-Saturations
Material balance error is a measure of how well the simulator is keeping track of the total amount of
each phase. - ANSWERSTrue
An excessive number of "outer" iterations may indicate that the model is having stability problems, and
can be resolved by using an explicit formulation of the flow equations. - ANSWERSFalse
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