Apparatus for ensuring the flow of fluids through an external pipe, and methods to maintain the temperature of fluid flowing through an external pipe.To remove stagnant fluid in an external pipe with fluid flowing through the same, for treating fluid flowing through an external pipe.To remove solids formed in a pipe having fluid flowing through it.To depress a line connected with an underwater pipe flow upward extending to the superfu00eccie of water to remove sand from an external pipe.And to separate gas from lu00ecquidos in an external pipe

摘要

"Device to ensure the flow of fluid through an external pipe, and methods to maintain the temperature of fluid flowing through an external pipe.To remove stagnant fluid in an external pipe with fluid flowing through the same, for treating fluid flowing through an external pipe.To remove solids formed in a pipe having fluid flowing through it.To depress a line connected with an underwater pipe flow upward extending to the superfu00eccie of water to remove sand from an external pipe.And to separate gas from lu00ecquidos in an external pipe.A system for flow assurance includes an internal pipeline (70) prepared in the interior of an external pipe (50) to ensure that flow through the external pipe (50).During the installation and the axial movement relative to the external pipe (50).The internal pipe (70) is approximately neutralmente floating or fully neutralmente floating in the fluid of the external pipe (50) and may extend partially or completely through D.The external pipe (50). The internal pipeline (70) can be anchored at one end within the external pipe (50).The internal pipe (70) is preferably a coiled pipe composite that is installed using a propulsion system.The system may allow fluids to flow through the inner pipe (70) to the outside of the external pipe (50).Hot fluids may pass through the inner pipe (70) for conditioning the fluid in the external pipe (50).Tools can be fixed on the end of internal pipe (70) for conducting operations of flow assurance within the external pipe (50).