| CPC G01V 20/00 (2024.01) [G01V 1/282 (2013.01); E21B 49/02 (2013.01); E21B 2200/20 (2020.05); G01V 2210/66 (2013.01)] | 15 Claims |
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1. A method of enhancing a gross depositional environment (GDE) map of a subsurface formation, comprising:
obtaining the GDE map of the subsurface formation, wherein the GDE map comprises a lithology map of a plurality of lithotypes;
obtaining a paleo-bathymetric map of the subsurface formation;
assigning an inverse mobility for each of the lithotypes;
forming a bathymetric vector field based, at least in part, on a gradient of the paleo-bathymetric map;
defining at least one lithology group from the plurality of lithotypes;
for each lithology group:
generating an inverse mobility map from the lithology map and the assigned inverse mobilities,
forming an inverse mobility vector field based, at least in part, on the gradient of the inverse mobility map, and
scaling the inverse mobility vector field based, at least in part, on the paleo-bathymetric map and the inverse mobility map;
combining, by vector addition, the scaled inverse mobility vector field for each lithology group and the bathymetric vector field to produce a carbonate sediment trajectory field for each lithology group; and
determining an enhanced gross depositional environment map based, at least in part, on the carbonate sediment trajectory field of at least one lithology group,
determining a subsurface model based, at least in part, on the enhanced gross depositional map;
planning a location of a well-site and a planned wellbore trajectory based, at least in part, on the subsurface model; and
drilling a wellbore guided by the planned wellbore trajectory using a drilling system.
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