Safety Systems for Isolating Overpressure During Pressurized Fluid Operations

摘要

An overpressure safety system for use with a distribution of pressurized fluid associated with hydrocarbon production operations includes a safety valve in fluid communication with a main bore of a fluid control manifold assembly. The safety valve has a blocking condition where the safety valve blocks a flow of pressurized fluid through the safety valve, and a venting condition where the safety valve provides a fluid flow path for the pressurized fluid at a set overpressure to pass through the safety valve. A valve member is moveable within the safety valve between a first position where a pressure side of the valve member blocks the flow of the pressurized fluid at a pressure below the set overpressure from passing through the safety valve, and a second position where the valve member provides a fluid flow path for the pressurized fluid at any pressure to pass through the safety valve.

主权项

1. An overpressure safety system for use with a distribution of pressurized fluid associated with a hydrocarbon production operation, the safety system comprising:
a fluid control manifold assembly having a main bore in fluid communication with a fluid inlet, the fluid control manifold assembly further having at least one distribution leg associated with a subterranean well, the distribution leg having a pressure barrier located between the main bore and the subterranean well, wherein the pressure barrier is moveable between an open position where a pressurized fluid can travel from the fluid inlet, through the main bore and to the subterranean well, and a closed position where the pressurized fluid is prevented from passing through the distribution leg to the subterranean well; a safety valve in fluid communication with the main bore of the fluid control manifold assembly, the safety valve having a blocking condition and a venting condition, wherein in the blocking condition the safety valve blocks a flow of the pressurized fluid through the safety valve, and in the venting condition the safety valve provides a fluid flow path for the pressurized fluid at a set overpressure to vent through the safety valve; a valve member that is moveable within the safety valve between a first position and a second position, wherein in the first position a pressure side of the valve member blocks the flow of the pressurized fluid at a pressure below the set overpressure from passing through the safety valve, and in the second position, the valve member provides the fluid flow path for the pressurized fluid at any pressure to pass through the safety valve; an overpressure line located on a side of the valve member opposite the pressure side of the valve member; and a discharge container in fluid communication with the overpressure line.