Patent ID: 9353602
Filing Date: 2016-05-31
CPC Classification: E21B

Claim Text:
1. A riser weak link in a riser connecting a floating installation or vessel to a hydrocarbon well on the seabed, said weak link comprising a first riser part in the form of an upper housing for connecting to a riser upper section; a second riser part in the form of a lower housing for connecting to a riser lower section, wherein one riser part is arranged to extend into the other riser part; and connection devices for releasably connecting the upper and lower housings, wherein the weak link comprises a first connection device arranged to fail if a tensile force on the first and second riser parts exceeds a first threshold force, and wherein the weak link comprises a second connection device arranged to fail if a compressive force on the first and second riser parts exceeds a second threshold force.