Abstract: An adapter assembly for connecting a flowline which includes an end portion to a subsea tree which includes a fluid line connector. The adapter assembly includes an adapter base, a first connection element which is connected to the adapter base and which connects to the fluid line connector of the subsea tree, and a flowline connector assembly which includes a second connection element which connects to the end portion of the flowline. The flowline connector assembly is attached to the adapter base. The adapter assembly connects to the subsea tree via the first connection element.

Abstract: An adapter assembly for connecting a flowline which includes an end portion to a subsea tree which includes a fluid line connector. The adapter assembly includes an adapter base, a first connection element which is connected to the adapter base and which connects to the fluid line connector of the subsea tree, and a flowline connector assembly which includes a second connection element which connects to the end portion of the flowline. The flowline connector assembly is attached to the adapter base. The adapter assembly connects to the subsea tree via the first connection element.

Abstract: An annulus isolation valve assembly being part of a tubing hanger assembly, with a valve bore having a fluid mouth, and a sliding sleeve which is arranged in the valve bore and which has an axially extending sleeve bore. The sliding sleeve has a radially facing sleeve port. A hydraulic piston is functionally connected to the sliding sleeve. The sliding sleeve comprises an axially facing fluid port which is in fluid communication with the radially facing sleeve port.

Abstract: An annulus isolation valve assembly (1) being part of a tubing hanger assembly (100), with a valve bore (5) having a fluid mouth (9), and a sliding sleeve (11) which is arranged in the valve bore (5) and which has an axially extending sleeve bore (13). The sliding sleeve (11) has a radially facing sleeve port (17). A hydraulic piston (21) is functionally connected to the sliding sleeve (11). The sliding sleeve (11) comprises an axially facing fluid port (47) which is in fluid communication with the radially facing sleeve port (17).

Abstract: A subsea leak detection system for an off-shore operation facility includes a leak detector operatively connected to a controller located on a subsea assembly. The system is provided with a floating member on which the leak detector is suitably attached. The floating member is adapted to be installed and stably positioned, above the assembly.

Abstract: A subsea leak detection system for an off-shore operation facility, comprising at least a leak detector (6) operatively connected to a controller (9) located on a subsea assembly (14). The system is provided with a floating member (1) on which the leak detector (6) is suitably attached. The floating member (1) is adapted to be installed and stably positioned, above the assembly (14).