Australian Mud Company Pty Ltd

Justin Bergh

Andrew Phillip Beach

Gavin Thomas McLeod

Scott Sholer

A system () delivers of a flowable substance S to a remote location through a conduit (). The system () has a bodywith first and second portions () and at least two plugs (P, P) associated with the body () so that in a first configuration the plugs (P, P) are spaced apart and form a sealed region () for holding a volume of the substance S, and, in a second configuration at least the second plug (P) is disposed in the second portion wherein the substance S can flow in a downstream direction past or through the second plug and out of the body (). A first valve () is coupled with the body () and has: (a) and opened state where the substance S is able to flow out of the body () and (b) a closed state where the first valve () prevents flow of the substance S out of the body () and prevents flow of a further fluid into or out of the body () while allowing a bypass flow of the further fluid in an upstream direction through a bypass flow path () of the first valve () to facilitate travel of the system () through a column of the further fluid in the conduit ().

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Gwelup, Australia

Justin Bergh