Flexible subsea pipeline comprising wear resistant polypropylene homopolymer layer

• Main Authors: MORRIS JOHN, DEMANZE FREDERIC
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2024
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The present application relates to a flexible subsea pipeline for the transport of hydrocarbons, comprising at least two reinforcement layers separated by an anti-wear layer of polymeric material, each of said reinforcement layers being produced by helically winding a longitudinal element made of a metal or composite material, the invention relates to a flexible subsea pipeline comprising an anti-wear layer produced by helically winding at least one strip of said polymeric material comprising a specific polypropylene homopolymer, to a method for producing a flexible subsea pipeline and to the use thereof for transporting fluids. The present application also relates to the use of a specific polypropylene homopolymer as a polymeric material of a strip of an anti-wear layer to improve its creep resistance. 本申请涉及用于碳氢化合物输送的柔性水下管道，其包含由聚合物材料的抗磨损层隔开的至少两个增强层，所述增强层中的每个通过螺旋缠绕由金属或复合材料制成的纵向元件而产生，所述抗磨损层通过螺旋缠绕所述聚合物材料的至少一个条带而产生，所述聚合物材料包含特定的聚丙烯均聚物，涉及用于制备柔性水下管道的方法及其用于输送流体的用途。本申请还涉及特定的聚丙烯均聚物作为抗磨损层的条带的聚合物材料以改进其抗蠕变性的用途。