| CPC E21B 47/06 (2013.01) [E21B 49/08 (2013.01); G01V 11/00 (2013.01); E21B 2200/22 (2020.05); G06N 20/00 (2019.01)] | 20 Claims |
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1. A method comprising:
calculating a prior distribution of formation pressure gradients based at least in part on one or more proxy logs, wherein proxy logs comprise previously acquired logs on at least one well in a neighboring vicinity of a well of interest and/or the well of interest;
selecting a first location in a wellbore of the well of interest for a formation pressure measurement from the prior distribution;
disposing a downhole pressure sampling tool into the wellbore;
moving the downhole pressure sampling tool to the first location in the wellbore;
taking at least one measurement with the downhole pressure sampling tool at the first location in the wellbore;
calculating a posterior distribution based at least in part on the at least one measurement and the prior distribution;
identifying a second location based at least in part on the posterior distribution and a ranking of candidate formation pressure measure locations according to an expected information gain from each of the candidate formation pressure measurement locations;
moving the downhole pressure sampling tool to the second location; and
identifying a termination threshold based at least in part on a differential information gain.
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