CO2 INJECTION—1: Restaged CO2 compressors, new pumps remove bottleneck at Weyburn

The restaging of CO2 compressors and installation of injection pumps removed the bottleneck caused by the lack of reinjection compression capacity for the produced recycled gas at EnCana Corp.'s Weyburn Saskatchewan oil battery. The battery reinjects dense-phase CO2 for enhancing oil recovery.The reinjection process entails separating produced gas from the oil, compressing the gas, and then recycling it into the reservoir together with CO2 from the North Dakota's Great Plains Synfuels Plant.EnCana lead facilities engineer Blair Eddy developed a detailed plan for adding capacity that involved pumping the dense-phase recycled gas.EnCana Weyburn engaged Falcon EDF Ltd. to perform the detaile...

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