US 11,905,809 B2
Determining reservoir heterogeneity for optimized drilling location
Andrew Davies, West Hagbourne (GB); Michael Simmons, Wantage (GB); Lawrence Cowliff, Chartham (GB); and Estanislao Nicolás Kozlowski, Abingdon (GB)
Assigned to Landmark Graphics Corporation, Houston, TX (US)
Filed by Landmark Graphics Corporation, Houston, TX (US)
Filed on Feb. 24, 2022, as Appl. No. 17/679,996.
Prior Publication US 2023/0265750 A1, Aug. 24, 2023
Int. Cl. E21B 43/25 (2006.01); E21B 43/16 (2006.01); E21B 47/003 (2012.01); E21B 47/0224 (2012.01); E21B 49/00 (2006.01)
CPC E21B 43/25 (2013.01) [E21B 43/16 (2013.01); E21B 47/003 (2020.05)] 20 Claims
OG exemplary drawing
 
8. A method comprising:
receiving, by a processor, a wireline log associated with a well that is positioned in a subterranean formation that includes a reservoir;
determining, by the processor and using the wireline log, at least one statistical parameter for an interval of the well;
generating, by the processor, delta data for the wireline log for determining the at least one statistical parameter for the interval of the well, wherein the delta data comprises one or more differences between two or more consecutive samples in the wireline log;
determining, by the processor and using the at least one statistical parameter, a vertical heterogeneity of the reservoir;
determining, by the processor and using the vertical heterogeneity, a score associated with the reservoir, the score indicating an extraction difficulty and a carbon intensity of the reservoir; and
outputting, by the processor, the score for optimizing a drilling location.