Abstract: A gas production line including: an inlet; an outlet; and a wet gas condenser connected between the inlet and the outlet, wherein the wet gas condenser includes: a condensing chamber; a condensing surface; and a collecting chamber, wherein, in use, water vapour in wet gas passing over the condensing surface is condensed into liquid water, the liquid water flowing along a predetermined flow path into the collecting chamber.

Abstract: A gas production line including: an inlet; an outlet; and a wet gas condenser connected between the inlet and the outlet, wherein the wet gas condenser includes: a condensing chamber; a condensing surface; and a collecting chamber, wherein, in use, water vapour in wet gas passing over the condensing surface is condensed into liquid water, the liquid water flowing along a predetermined flow path into the collecting chamber.

Abstract: A method for routing communications signals at an underwater hydrocarbon extraction facility comprising: providing a routing module at an underwater location, the routing module comprising a passive wavelength division demultiplexer; sending wavelength division multiplexed communications signals to the routing module from a surface location via an input optical fibre; demultiplexing wavelength division multiplexed communications signals using the passive wavelength division demultiplexer to produce a plurality of demultiplexed output communications signals; and outputting the output demultiplexed communications signals via respective output optical fibres.

Abstract: A power switching module including: a plurality of input interfaces; a plurality of output interfaces; a plurality of switches connected between respective ones of the input interfaces and the output interfaces; and a controller operable to selectively open and close the switches, wherein the power switching module is received in a marinised canister.

Abstract: An active bypass system including an active bypass module having a first receiver connected to a first transmitter; and a slave node having a second receiver, a second transmitter, and a process node connected therebetween. During normal operation, data received by the first receiver is passed to the second receiver, and then passed to the process node for processing, after which a response is passed from the process node to the second transmitter, and then passed to the first transmitter. In the event of a failure of the slave node, data is received by the first receiver and then passed to the first transmitter, thereby bypassing the slave node.