Consider fracture width dynamic change's plugging device

The utility model discloses a consider fracture width dynamic change's plugging device relates to working solution leakage control field among the oil -gas well engineering. Include: the air supply, pressure sensor, the working solution recirculating still body, the one end air supply links to each other, the rock core holder, one end links to each other with the working solution recirculating still body, and the other end links to each other with the liquid measurement meter, the confined pressure system, go up semicolumn steel rock specimen, the upper end links to each other with last displacement sensor, and the lower extreme links to each other with the rock core gasket, the rock core gasket, the lower extreme is with semicolumn steel rock specimen is continuous down, lower semicolumnsteel rock specimen, the lower extreme is with displacement sensor is continuous down, go up displacement sensor, lower displacement sensor, the liquid measurement meter, the computer, the utility model discloses the device c