SUBSURFACE HEATER CONFIGURATION FOR IN SITU HYDROCARBON PRODUCTION

摘要

The invention concerns a configuration of elongate subsurface heaters (20) in a subsurface oil shale formation (10) for use in hydrocarbon production. The heaters (20) are grouped into a series of columns (40), the columns extending generally perpendicular to the sedimentary layers (50) of the subsurface oil shale formation (10). The heaters may also be grouped into a series of layers, each layer extending in one sedimentary layer of the oil shale formation.