Modular pressure control and drilling waste management apparatus for subterranean borehole operations

Abstract From the Canadian patent

A modularly segmented apparatus for precise borehole pressure control removing waste from borehole fluid, and recirculating the cleaned borehole fluid includes a pressure control section a gas separator section, and a waste management section. In the pressure control section a pressure manifold interconnects a plurality of chokes. A plurality of valves are used to direct the contaminated fluid through one of the chokes which maintains a precise and predetermined pressure in the system. The manifold chokes, and valves are mounted on a skid for easy transport. In the gas separator section a gas separator is used to remove a majority of the gases present in the contaminated borehole fluid. In …