A control system for use with a pipeline that transports a process fluid. The control system includes a distributed temperature sensing system that records temperature data at a plurality of segments along a pipeline, a heating system that heats the process fluid, and a management system. The management system includes a controller that receives the temperature data from the distributed temperature sensing system and determines a first alarm condition for each segment of the plurality of segments along the pipeline. When the first alarm condition is present in adjacent segments, the controller merges the first alarm condition to create an extended segment first alarm condition encompassing the adjacent segments and displays, via a graphical user interface, a representation of the extended segment first alarm condition.

Systems for facilitating fluid flow including a tubular segment having a length, a tube wall with a thickness, a tube wall exterior surface, and a tube wall interior surface. The tube wall interior surface defines a conduit configured to permit fluid flow along the length of the tubular segment. The tube wall may include a material configured to convey heat energy through the tube wall and at least one heating element coupled to an exterior surface of the tube wall along the length of the tubular segment, at least one heating element comprising an enabler material configured to receive electromagnetic energy, convert the electromagnetic energy into heat energy, and release the heat energy into the tube wall. The system may include a source of electromagnetic energy associated with the at least one heating element. The source of electromagnetic energy is configured to transmit electromagnetic energy into the heating element.

Systems for facilitating fluid flow including a tubular segment having a length, a tube wall with a thickness, a tube wall exterior surface, and a tube wall interior surface. The tube wall interior surface defines a conduit configured to permit fluid flow along the length of the tubular segment. The tube wall may include a material configured to convey heat energy through the tube wall and at least one heating element coupled to an exterior surface of the tube wall along the length of the tubular segment, at least one heating element comprising an enabler material configured to receive electromagnetic energy, convert the electromagnetic energy into heat energy, and release the heat energy into the tube wall. The system may include a source of electromagnetic energy associated with the at least one heating element. The source of electromagnetic energy is configured to transmit electromagnetic energy into the heating element.

An apparatus includes a Polymer Thermal Expansion Based Passive Thermal Diode (PTE-PTD) that includes layers and is configured to provide passive heating and cooling of a pipeline. A polyurethane (PU) layer is provided that is configured to contact at least an upper portion along a length of a pipe. A polyethylene terephthalate (PET) layer is provided that is configured to surround the PU layer and the length of the pipe. A graphene layer is provided that is configured to surround an epoxy layer. An epoxy shell is provided that is configured to surround the graphene layer. An air gap on a first side of the PTE-PTD is provided. The air gap is formed by a void in the PET layer and is configured to provide additional air space between the PET layer and the PU layer. The air gap provides an upward movement of the PET layer using opposite forces of alternate sides of the PET layer. The PTE-PTD is installed on the pipeline.

An apparatus includes a Polymer Thermal Expansion Based Passive Thermal Diode (PTE-PTD) that includes layers and is configured to provide passive heating and cooling of a pipeline. A polyurethane (PU) layer is provided that is configured to contact at least an upper portion along a length of a pipe. A polyethylene terephthalate (PET) layer is provided that is configured to surround the PU layer and the length of the pipe. A graphene layer is provided that is configured to surround an epoxy layer. An epoxy shell is provided that is configured to surround the graphene layer. An air gap on a first side of the PTE-PTD is provided. The air gap is formed by a void in the PET layer and is configured to provide additional air space between the PET layer and the PU layer. The air gap provides an upward movement of the PET layer using opposite forces of alternate sides of the PET layer. The PTE-PTD is installed on the pipeline.

An AC transmission system for a power transmission to an offshore plant. The AC transmission system includes an onshore power station which transmits an electric power, an offshore plant which receives the electric power, a submarine cable which connects the onshore power station to the offshore plant, and at least one pipeline with an electrical heating system which is connected to the onshore power station through the submarine cable.

An AC transmission system for a power transmission to an offshore plant. The AC transmission system includes an onshore power station which transmits an electric power, an offshore plant which receives the electric power, a submarine cable which connects the onshore power station to the offshore plant, and at least one pipeline with an electrical heating system which is connected to the onshore power station through the submarine cable.

A method includes providing a length of pipeline that has a housing defining a central bore extending the length of the pipe and a space formed within the housing and extending the length of the pipe. At least one condition within the space is continuously monitored within the space to detect in real time if a change in the housing occurs.

A method includes providing a length of pipeline that has a housing defining a central bore extending the length of the pipe and a space formed within the housing and extending the length of the pipe. At least one condition within the space is continuously monitored within the space to detect in real time if a change in the housing occurs.

Described embodiments include a system and a method. A described system includes a pipeline system. The pipeline system includes a transportation conduit containing a natural gas hydrate flowing from a first geographic location to a second geographic location. The pipeline system includes a cooling conduit running parallel to the transportation conduit, and having a heat-transfer surface thermally coupled with the flowing natural gas hydrate. The cooling conduit contains a heat-transfer fluid flowing between the first geographic location and the second geographic location. The flowing heat-transfer fluid has a target temperature range predicted to maintain a selected stability of the flowing natural gas hydrate.