Measuring and testing – Borehole or drilling – Pressure measurement
Reexamination Certificate
2008-04-22
2008-04-22
Williams, Hezron (Department: 2856)
Measuring and testing
Borehole or drilling
Pressure measurement
C073S152520
Reexamination Certificate
active
11356466
ABSTRACT:
Fluid column weight correction using discrete point and fiber optic temperature measurement. A method for determining pressure at a distal end of a fluid column in a well includes the steps of: dividing the fluid column into multiple segments; determining a temperature of each segment; and determining a pressure and density for each segment. Another method includes the steps of: determining the temperature of each segment by measuring a temperature in the well near a proximal end of the fluid column, and using the measured temperature in conjunction with a thermal wellbore model to generate a temperature profile of the fluid column. Another method includes the steps of: causing a pressure change in the fluid column; recording multiple pressure measurements during the pressure change; and generating a temperature profile of the fluid column for each of the pressure measurements.
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David Christopher
Johnson David O.
Sierra Jose
Bellamy Tamiko
Smith IP Services P.C.
Welldynamics B.V.
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