Energy from in situ processing of Antrim oil shale

Abstract

In situ combustion was maintained for a 61-day period while several continuous and cyclic production procedures were tested. Gas having energy values in the target range (150 Btu scf) was produced at various times, although the flow rate at these times was minimal and hence the energy production was low. Thus, a large area ignition did not occur, probably due to the lack of extensive fracturing in the area. There was no significant heat damage to the propane burner, whereas in the previous run the burner was severly damaged. A hydraulic fracturing and sand propping program was completed in the 100 Series wells. Evaluation of the results shows that communication has been achieved between the various wells. Preparations for explosive fracturing of this system are essentially complete. The plans for the first explosive shot in the explosive underreaming experiment have been completed and final preparations are underway. Shale characterization and resource inventory activities are continuing in four of the major universities of Michigan.

Keywords

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