System and method for remaining resource mapping

A system for mapping remaining hydrocarbon resources in a subsurface reservoir, comprising:

• a depletion map module configured and arranged to generate a pressure depletion map of the subsurface reservoir based on a pressure depletion dataset representing a pressure change in at least one well over a time interval;
• a pore thickness map module configured and arranged to obtain a hydrocarbon pore thickness map of the subsurface reservoir based on a hydrocarbon pore thickness dataset representing hydrocarbon pore thickness substantially at a beginning of the time interval;
• a remaining resource map module configured and arranged to use the pressure depletion map and the hydrocarbon pore thickness map, to generate a remaining resource map of the subsurface reservoir;
• an estimated ultimate recovery module configured and arranged to, for each of a plurality of infill wells located in the subsurface reservoir and operated during a portion of the time interval, determine an estimated ultimate recovery value;
• a correlation module configured and arranged to use each estimated ultimate recovery value with data from the remaining resource map for the locations of the infill wells to determine a correlation;
• and
• an evaluation module configured and arranged to, using the correlations and the remaining resource map, evaluate a location for a proposed infill well.

A non-transitory processor readable medium containing computer readable software instructions for performing the method comprising:

• generating a pressure depletion map of the subsurface reservoir based on a pressure depletion dataset representing a pressure change in at least one well over a time interval;
• obtaining a hydrocarbon pore thickness map of the subsurface reservoir based on a hydrocarbon pore thickness dataset representing hydrocarbon pore thickness substantially at a beginning of the time interval;
• using the pressure depletion map and the hydrocarbon pore thickness map, generating a remaining resource map of the subsurface reservoir;
• for each of a plurality of infill wells located in the subsurface reservoir and operated during a portion of the time interval, determining an estimated ultimate recovery value;
• using each estimated ultimate recovery value with data from the remaining resource map for the locations of the infill wells to determine a correlation;
• and
• using the correlations and the remaining resource map, evaluating a location for a proposed infill well.