Heavy oil miscible-phase pressure measuring device

The utility model discloses a thick oil miscible-phase pressure measuring device which comprises a sample cylinder internally provided with a closed cavity, the closed cavity comprises a water bearing space located on the lower portion and a thick oil bearing space located above the water bearing space, and the thick oil bearing space is communicated with a pressure gauge used for detecting the pressure when thick oil is contained in the thick oil bearing space. The device further comprises a gas injection needle tube, a needle head of the gas injection needle tube penetrates through the bottom end of the sample barrel and extends into the water bearing space, the device further comprises a CT scanner, a ray source of the CT scanner is arranged towards the sample barrel, so that an area from the needle head to the uppermost portion of the thick oil bearing space is presented in a projection image of the CT scanner, and the device further comprises a heating part used for heating the sample barrel. The device