PROOF TESTING APPARATUS AND METHOD FOR REDUCING THE PROBABILITY OF FAILURE ON DEMAND OF SAFETY RATED HYDRAULIC COMPONENTS.

摘要

A blowout preventer (BOP) safety system (100) for testing the integrity of safety valves at the sea floor, the system characterized by : a BOP (120), the BOP (120) characterized by a BOP shear ram (122); a first hydraulic circuit (128), the first hydraulic circuit (128) in fluid communication with the BOP shear ram (122) and having an open side (129) and a close side (131); a manifold (116), wherein the manifold (116) is disposed proximate to and in fluid communication with a dump valve (118), a first sensor (114), and a supply valve (152); and a first safety valve (134) disposed between and in fluid communication with the manifold (116) and the BOP (120) on the close side (131), wherein the dump valve (118) is operable to allow flow from the BOP (120) to the manifold (116) through the first safety valve (134), and wherein the first sensor (114) is operable to detect the flow from the BOP (120) to the manifold (116).