Patent ID: 8356510

Claim:
A core sample holder assembly for performing laboratory core flooding experiments with a core sample taken from a hydrocarbon containing formation, comprising: a pressure chamber provided by a tubular hull, the hull comprising a carbon fiber composite material and an aluminum liner, and a pair of disk-shaped flanges arranged at opposite sides of the tubular hull; a flexible core sample holder sleeve comprising a tubular steel sheet with a plastic inner lining, the sleeve being arranged within the pressure chamber and sealingly secured to the disk-shaped flanges wherein the tubular steel sheet is wrapped in a porous thermally insulating blanket; an opening for injecting oil through one of the disk-shaped flanges into an annular space between the tubular hull and the flexible sleeve; pressure control means for maintaining the oil in the annular space at a predetermined pressure; an fluid injection port for injecting a fluid through one of the disk-shaped flanges into pores of the core sample, which is in use arranged within the flexible sleeve; a fluid outlet port arranged in the other disk-shaped flange for discharge of pore and/or injected fluid from the pores of the core sample; and means for monitoring the migration of injected and/or pore fluid through the pores of the core sample by transmitting electromagnetic radiation through the core via the surrounding hull, oil and flexible sleeve.