Measuring and testing – Borehole or drilling – Downhole test
Patent
1996-04-25
1997-03-18
Williams, Hezron E.
Measuring and testing
Borehole or drilling
Downhole test
364420, 324323, 367 14, 7315218, 73 191, 16625001, G01V 100, E21B 4900, G09B 2340
Patent
active
056124937
ABSTRACT:
A method is provided for simulating a linear solution gas curve for the determination of the gas-oil ratio for a crude oil well at any pressure using only surface measurements of the well's annular gas rate, a determination of the flowing bottom hole pressure, and knowledge of the bubble-point pressure. From the resulting curve, relationships can be formulated for determining the total produced gas rate. In an alternate embodiment, knowing the total gas rate for a crude oil well, a solution gas curve is simulated and the above relationships can be applied in reverse manner to predict several well characteristics, including either of the crude oil bubble-point pressure, the flowing bottom hole pressure, or the annular gas rate.
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Griggs Dennis T.
Wiggins J. David
Williams Hezron E.
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