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 system and method for delivering heat to a fluid in a fluid production pipeline. Particles are injected into a line adjacent the fluid production pipeline. The particles include a microencapsulated liquid exothermic phase change material configured to undergo a phase change by solidification and release heat at a selected temperature. The released heat is transferred to the fluid production pipeline.

A system and method for delivering heat to a fluid in a fluid production pipeline. Particles are injected into a line adjacent the fluid production pipeline. The particles include a microencapsulated liquid exothermic phase change material configured to undergo a phase change by solidification and release heat at a selected temperature. The released heat is transferred to the fluid production pipeline.

A system for heating equipment in a hazardous environment is provided. The system includes a control system configured to receive power from a power source, a heating pad configured to heat the equipment, the heating pad including at least one heating element, wherein the at least one heating element is a flexible semi-conductive self-regulating heating element, at least one thermal insulation layer positioned on one side of the at least one heating element, and a protective cover, wherein the at least one heating element and the at least one thermal insulation layer are sealed within the protective cover, and a power cable coupling the control system to the heating pad.

A system for heating equipment in a hazardous environment is provided. The system includes a control system configured to receive power from a power source, a heating pad configured to heat the equipment, the heating pad including at least one heating element, wherein the at least one heating element is a flexible semi-conductive self-regulating heating element, at least one thermal insulation layer positioned on one side of the at least one heating element, and a protective cover, wherein the at least one heating element and the at least one thermal insulation layer are sealed within the protective cover, and a power cable coupling the control system to the heating pad.

A pipe-in-pipe assembly with thermally-insulating spacers positioned in an annulus to act radially between inner and outer pipes is disclosed. The spacers have at least one circumferentially-extending array of circumferentially-spaced ribs that define longitudinally-extending passageways in gaps between neighbouring ribs of the array. Cables including heating elements extend longitudinally along, the annulus outside the inner pipe. The cables extend longitudinally along the passageways. At least one insulation layer disposed radially outboard of the cables has insulating elements disposed in the gaps between the ribs and/or an insulating layer extending around the inner pipe, positioned radially outboard of the ribs and bridging the gaps. Bands encircle and retain components of the insulation layer. Insulation may also be disposed on the inner pipe between first and second arrays of ribs, those arrays being spaced longitudinally from each other.

A pipe-in-pipe assembly with thermally-insulating spacers positioned in an annulus to act radially between inner and outer pipes is disclosed. The spacers have at least one circumferentially-extending array of circumferentially-spaced ribs that define longitudinally-extending passageways in gaps between neighbouring ribs of the array. Cables including heating elements extend longitudinally along, the annulus outside the inner pipe. The cables extend longitudinally along the passageways. At least one insulation layer disposed radially outboard of the cables has insulating elements disposed in the gaps between the ribs and/or an insulating layer extending around the inner pipe, positioned radially outboard of the ribs and bridging the gaps. Bands encircle and retain components of the insulation layer. Insulation may also be disposed on the inner pipe between first and second arrays of ribs, those arrays being spaced longitudinally from each other.

Embodiments described herein provide a system and methods for protecting a fluid stream from fouling using particles that include phase change materials. In an example, the particles are injected into the fluid stream and release energy at a selected temperature, which may warm the fluid stream.

Embodiments described herein provide a system and methods for protecting a fluid stream from fouling using particles that include phase change materials. In an example, the particles are injected into the fluid stream and release energy at a selected temperature, which may warm the fluid stream.

A pipe-in-pipe bulkhead assembly has inner and outer rings spaced in concentric relation to define a thermally-isolating gap in the annulus between them. Interlocking formations project into the annulus from each of the rings, presenting confronting faces where they overlap radially. The gap extends between the longitudinally-spaced faces. A thermally-insulating spacer is interposed between the faces in the gap to carry axial mechanical loads between the inner and outer rings. Heating elements outside the inner ring extend longitudinally beyond the gap between the faces and along a longitudinal passageway that passes through or beside an interlocking formation of the inner ring. The spacer may be positioned before or after the outer ring is placed, for example as a discrete element or as an injected mass. An additional sealing mass may also be positioned in the annulus, for example by injection, to promote a gas-tight seal.