With the advent of tertiary flood projects utilizing CO2 as an injection medium, the need to adequately measure and control it becomes imperative for achieving optimum injection to withdrawal ratios. Maintaining an optimum ratio is particularly important in the economic sense considering that the injection medium initially would not be available as a by product of production.

Preliminary data compiled from a study to perform automated volumetric metering and injection rate control of CO2, using the liquid turbine meter is presented in this treatise. Observations of CO2 flow within a temperature range of 29-104 deg/f and a pressure range of 950-1250 psig are made for two one-inch liquid turbine meters. The compiled data depicts measured turbine meter accuracy variations which may be controlled to within 6% of true flow by correction formulas that may be solved by digital or analog techniques.

Keywords:
energy conservation, subsurface storage, chemical flooding methods, enhanced recovery, turbine, prover, error correction factor number, accuracy, formula, carbon dioxide injection
Subjects:
Improved and Enhanced Recovery, Storage Reservoir Engineering, Gas-injection methods, Chemical flooding methods, CO2 capture and sequestration
Copyright 1982, Society of Petroleum Engineers of AIME
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