Methods for joining pipe section in a pipe system containing corrosive petroleum products

摘要

A method to form a pipe system which meets level II fire endurance standard according to IMO A 18/Res.753 fire testing protocol, for use in oil, gas, exploration, refining and petrochemical applications is provided. In the pipe system, each pipe section comprises a plurality of layers, an inner layer in contact with the corrosive petroleum product comprising a thermoplastic material, a structural layer comprising a composite material, and an outer layer comprising a fire resistive material. The method comprises applying energy to join the corrosion resistant layers of the separate pipe sections together forming a joint, applying an external wrap around the joint and at least a portion of the composite structural layers of the at least two pipe sections, and bonding the external wrap to the joint and the composite structural layers by chemical curing, thermal treatment, or combinations thereof.

主权项

1. A method for joining pipe sections in pipe system for containing corrosive petroleum products, the system comprising at least two separate pipe sections, a first pipe section and a second pipe section, the method comprising:
positioning the first pipe section adjacent to the second pipe section, each pipe section comprising a structural layer comprising a composite material and a corrosion resistant layer for contacting the corrosive petroleum product, and a fire resistive layer; applying energy to join the corrosion resistant layers of the first and second pipe sections together forming a joint; applying an external wrap around the joint of the first and second pipe sections; bonding the external wrap to the joint and the composite structural layers by at least one of chemical curing and thermal treatment; and covering the external wrap with a layer of fire resistive material.