CONTROLLED DELIVERY OF HEAT APPLIED TO A SUBSURFACE FORMATION

摘要

The present disclosure provides a method for controlling delivery of heat to a subsurface formation that includes (a) heating a first heater pattern; (b) determining an expected electrical conductivity; (c) calculating an estimated electrical conductivity; (d) comparing an estimated electrical conductivity to the expected electrical conductivity until the estimated electrical conductivity equals the expected electrical conductivity; (e) determining a first heater pattern reaction extent when the estimated electrical conductivity equals the expected electrical conductivity; and (f) when the first heater pattern reaction extent is within a target coke first heater pattern reaction extent range, one of (i) heating a second heater pattern instead of the first heater pattern and (ii) modifying the heating of the first heater pattern, and when the first heater pattern reaction extent is outside of the target coke first heater pattern reaction extent range repeating steps (a) - (e).