EXHAUST GAS PROVIDES ALTERNATIVE GAS SOURCE FOR CYCLIC EOR

George P. Stoeppelwerth Consultant Wichita, Kan. Injected exhaust gas from a natural gas or propane engine enhanced oil recovery from several Nebraska and Kansas wells. The gas, containing nitrogen and carbon dioxide, is processed through a catalytic converter and neutralized as necessary before being injected in a cyclic (huff and puff operation. The process equipment is skid or trailer mounted (Fig. 1). The engine in these units drives the gas-injection compressor.

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