PROGRESSING CAVITY STATOR WITH GAS BREAKOUT PORT

摘要

Progressing cavity devices and systems are provided. In one embodiment, a stator (26) of a progressing cavity device (22, 36) includes plates (56, 70) with apertures (74) that are rotationally offset to form a winding rotor conduit (44) for receiving a rotor (24) of the progressing cavity device. A layer of elastomer (50) can be provided on edges of the apertures of the plates in the winding rotor conduit, and the stator can also include a gas breakout port (52) through the plates to enable gas between the plates to escape the stator. Additional systems, devices, and methods are also disclosed.