The Development of a New Reinforced Thermoplastic Pipe with Large Diameter for Oil and Gas Transmission Pipeline
Reinforced thermoplastic pipe (RTP) is widely used in petroleum, chemical engineering, and water supply, etc. As RTP is designed to be spoilable, they are not normally larger than 6 in. diameter. However, because of advantage in corrosion resistance, big diameter RTP with high pressure has become the new focus on the field of oil and gas pipeline in the worldwide. In this paper, a new reinforced thermoplastic pipe with a large diameter up to 18 in. for oil and gas transmission pipeline has been successfully developed, with the burst pressure up to 24.34 MPa. The results showed that the failure of glass fiber-reinforced tape was the main fracture mode of this type of RTP under inner pressure. FEA is reliable for RTP design.
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