For in-hole string testing, the Pressure Test Sub (PTS) MXTM is a simple and accurate way to perform multiple, variable pressure tests on the string with the capability to regain full circulation after each test.
The system comprises of the test and catcher subs installed below the drill pipe that is to be pressured up.
Simply pump the pre-configured smart dart into the sub and hold pressure post land out. Once complete, shear the dart out into the catcher and resume operations.
The subs can be run below any length of pipe, at any angle or temperature, and can be used with any type of circulation fluid.