Richard L. Christiansen

Rapid measurement of minimum miscibility pressure with the rising-bubble apparatus

The minimum miscibility pressure (MMP) for a gas/oil pair can be measured within 1 hour with the rising-bubble apparatus (RBA). Development of miscibility between a gas bubble and an oil can be observed visually. The measurements of the MMP with the RBA compare favorably with those based on slim-tube experiments and predictions from phase-behavior studies.

Gasflooding experiments for the east side of the Yates field unit

Comparizon of the oil recovery efficiency of CO 2 injection vs-gas injection into the gas cap (GCG), to cause a downward, gravity stabilized immiscible displacement. The CO 2 injection recovered 6 to 11% more of the OOIP, by oil swelling and gas/oil interfacial tension reduction. Oil-viscosity reduction accelerated the production