The invention discloses a high-temperature high-pressure microscopic visual flowing device and an experimental method. The high-temperature high-pressure microscopic visual flowing device comprises a seepage
simulation system, a micro displacement and metering
system connected with the seepage
simulation system, and an
image acquisition and analysis system, wherein the seepage
simulation system comprises a visible high-temperature and high-pressure kettle, a microscopic
rock core model placed in the visible high-temperature and high-pressure kettle, and glass carriers arranged above and below the microscopic
rock core model, a sealing rubber sleeve is sleeved outside the glass carriers, and an annular heating sleeve is sleeved outside the visible high-temperature and high-pressure kettle; a
microfluidic channel is arranged at the outlet end of the microscopic
rock core model and connected with a micro displacement and metering system through a pipeline, and metering errors caused by the
dead volume of the pipeline are effectively reduced. The device is advantaged in that a
microfluidic channel, a high-precision micro-
metering pump and a high-pressure micro-valve structure are adopted at the outlet end of the microscopic rock core model, so a purpose of metering the volume of fluid at the outlet by different methods is achieved, precision of the experimental device is greatly improved, and overall metering precision of the device reaches 10nL.