Test device of simulated formation mud infiltration

The utility model provides a simulated formation mud permeability test device includes at least that coupon, water pipe, water storage box, mud pipe puddle the box, and water tank and mud pipe be through the coupon intercommunication, and the coupon is connected the water tank through the becket and is puddled the pipe, having seted up the helicla flute on the inner wall of becket, being equipped with the loaded filter in the becket, the loaded filter closely inlays in the helicla flute of locating the becket through the sealing washer, being equipped with 2 above holes along the axial on the pipe wall of coupon and pressing sensors and 2 above TDR probes, each hole presses sensor and each TDR to pop one's head in respectively evenly distributed on two axis that are parallel to each other of coupon pipe wall, is equipped with horizontal scale along the axial on the surface of coupon pipe wall, is equipped with horizontal installation's transparent viewing window in the pipe wall of coupon, the utility model provides a simulated formation mud permeability test device can truly be simulated mud and permeate the condition that forms the mud skin in the soil body of stratum, simple structure, and sealing performance is good.