... Magnetic Resonance (NMR) technique was used for monitoring the fluid saturation and distribution over time. Fluid analysis on the injected and produced fluids using gas chromatography was also employed to understand the thermodynamic behavior. The thermodynamic mechanisms of oil recovery, vaporization...

... Abstract Earlier studies have shown that oil vaporization in the gas phase is one of the major mechanisms controlling oil recovery during gas injection Huff-n-Puff EOR in shale reservoirs. This vaporization process often leads to the selective production of hydrocarbon species. However...

... water in the Duvernay (Fig. 8). Another observation is the shift of the average T2 mean to the left in the Montney, which could be interpreted as the residual oil becoming heavier, with vaporization of the lighter and medium oil components after HnP. This interpretation is also supported by the HAWK...

... indicates that incremental oil is being produced, but the physical mechanisms for the additional recovery are not well understood. In this paper, the relative significance of four proposed recovery mechanisms is examined: (1) oil swelling, (2) viscosity reduction, (3) vaporization, and (4) pressure...