METHOD FOR PREVENTING CRITICAL ANNULAR PRESSURE BUILDUP

摘要

A modified casing coupling (202) that includes a receptacle, or receptacles (208), for a modular burst disk assembly (100). The burst disk assembly (100) is retained by threads (114) or a snap ring (230) and is sealed by the retaining threads (114), or an integral o-ring seal (128). The disk (102) fails at pressure specified by the user but before trapped annular pressure threatens the integrity of the outer casing. The design allows for the burst disk assembly (100) to be installed on location or before pipe shipment.