The invention discloses a self-sinking
insertion type
subsea pipeline mud-entering
leakage test device, which comprises a mud surface base plate component, a
shunting and control component and a mud-entering and leakage hole component, wherein the mud surface base plate component provides a supporting effect for the
shunting and control component and the mud-entering and leakage hole component, the
shunting and control component provides fluid connection, shunting and
remote control functions, and the mud-entering and leakage hole component provides mud-entering construction and under-mud leakage hole
simulation functions. According to the device, a
remote control underwater device is adopted, the high-pressure
cutting principle and the self-weight sinking principle of
jet flow are utilized for mud entering construction, and the device is simple and easy to implement. By setting the aperture sizes and positions of the leakage
pipe and the base disc
nozzle, the leakage position of the real
subsea pipeline is simulated, and the device has multiple functions. The device is simple in
offshore construction, visible and controllable in water surface in a mud entering state and capable of being repeatedly used, various different leakage conditions can be simulated through one device, and research on
subsea pipeline leakage is facilitated.