Measuring and testing – Borehole or drilling – Formation logging
Reexamination Certificate
2008-07-15
2008-07-15
Raevis, Robert R (Department: 2856)
Measuring and testing
Borehole or drilling
Formation logging
C374S136000
Reexamination Certificate
active
11398483
ABSTRACT:
Tracking fluid displacement along a wellbore using real time temperature measurements. A method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature in real time in the wellbore; and observing in real time a variation in temperature gradient between fluid compositions in the wellbore. Another method of tracking fluid displacement along a wellbore includes the steps of: monitoring temperature along the wellbore; and observing a variation in temperature gradient due to a chemical reaction in the wellbore. Another method includes the step of causing a variation in temperature gradient in the fluid while the fluid flows in the wellbore.
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Batenburg Diederik van
Ewert David
Glasbergen Gerard
Haney James
Johnson David O.
Raevis Robert R
Smith Marlin R.
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