Petroleum Engineering
Gas Formation Volume Factor (Bg)
Previously we discussed the two phase oil formation volume factor. It accounted for both free gas and oil in the ...
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Two Phase Oil Formation Volume Factor (Bt)
So far we have considered reservoir pressures maintained above the bubble point. At reservoir pressures above the bubble point, only ...
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Solution Gas Oil Ratio (Rs)
When oil is transported to the surface, we learned that it shrinks. It shrinks because gas evolves out of the ...
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Formation Volume Factor (Bo)
The produced volumes measured at surface conditions are never equal to the volumes at reservoir conditions because of the differences ...
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Material Balance Drive Indices
Previously we presented the macroscopic material balance equation. It includes many terms that can bog you down if you do ...
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Material Balance Introduction
The material balance equation is one of the fundamental equations a reservoir engineer needs to understand. Some of it's applications ...
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Isothermal Compressibility
In petroleum engineering everything has compressibility including rocks, oil, and water. It's not just gases anymore. The concept of compressibility ...
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Fracture Pressure
Previously, we applied solid mechanics to determine the stress condition on a rock in the horizontal direction. So how does ...
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Rock Matrix Horizontal Stress
Previously, we learned that the rock in the formation is subject to a vertical compression load called the effective stress ...
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Rock Matrix Stress
When dealing with rocks, we are always interested in the fracture pressure. One application of fracture pressure is in drilling ...
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