APRS - Annulus Pressure Relief System

The TCO Annulus Pressure Relief System was developed to tackle the problem of trapped B-annulus pressure build-up due to thermal expansion during well start-up and production. The product is run as an integral part of the production casing and is approved as an ISO 14998 V0 barrier featuring a relief valve and check valves in addition to an integrated filtration system. Conventional approaches constantly relieve pressure as the B-annulus pressure “tracks” the A-annulus pressure. Such constant pressure relief reduces the life of the well, risks barrier integrity and alters the supporting pressure inside and outside of the casing.