Abstract: Single-shot methods suitable for determining capillary pressure and relative permeability curves in petroleum reservoir core plugs are proposed. Three classes of measurement are outlined. (i) Measurements undertaken with steady state gas flow and stationary water or oil phases in the rock. SPRITE (Single-Point Ramped Imaging with T1 Enhancement) MRI (Magnetic Resonance Imaging) spin density images map spatially varying fluid content. (ii) Similar measurements are proposed with a stationary gas phase and flowing water or oil phases. (iii) Measurements are also possible with either water or oil as the stationary phase, with the other phase undergoing steady state flow. In all cases the outflow boundary condition is maintained, capillary pressure zero, by washing the outlet face of the sample with the stationary fluid phase.

Abstract: A device for monitoring gas effusing from a pipe, the device comprising a mounting assembly having an upper and lower bracket; a housing located on the upper bracket; the bottom of the housing is of a shape complementary to the pipe being monitored; a probe assembly; a bore in the housing for receiving the probe assembly; the probe assembly comprising: a probe insert; a chamber for collecting gas in the bottom of the probe insert formed by side walls and an upper wall; a compressible sealing means in the bottom of the side walls for sealingly engaging the outer surface of the pipe to be monitored; a passageway in the probe insert, extending from an outlet at the top surface of the probe insert to an inlet in the upper wall of the chamber, such that the passageway is in flow communication with the chamber; a tube receivable through the outlet of the passageway; a plate removably connected to the housing for, securing the probe assembly in place; the plate comprising a biasing means for compressing the sealing