... feasibility assessment at early design stage plays an important role in selecting an optimum SWIR configuration. The main pipe of the SWIRs is generally made of reinforced rubber, steel, or high-density polyethylene (HDPE). The SWIRs are installed in a free hanging configuration at the keel or on the sides...

... Abstract Pipeline design for high pressure/high temperature applications (HPHT) requires the use of heavy walled pipe up to 2" thickness. This leads to enhanced pipe chemistry & complexity for girth weld fabrication, particularly when sour service requirements are specified. Subsea 7...

... Abstract Fiber Reinforced Polymer (FRP) materials, including structural products and Glass Reinforced Epoxy (GRE) pipes, offer significant carbon footprint reduction when compared to traditional steel alternatives. This is because of the lower energy requirements needed for manufacturing...

... Abstract The work presents an unprecedented standardization effort within the flexible pipe industry, that allows flexible pipe manufactures to still use their best design for each case while allowing the projects the flexibility to select pipes from a list of already qualified and ready...

... liner through the existing spar top tensioned riser system while working within the available aircan tension capacity and dimensional clearance through the riser pipe. Dynamic global riser analysis is conducted to ensure that there is adequate strength capacity with the wear liner in place. Furthermore...

... and supercedes those previous iterations. The JIP now continues in a network phase, initially from 2024 to 2026 inclusive. Flexible Pipe Population Statistics and Operating Experience It is essential for users of flexible pipe to understand the history of application of the technology for a number...

... Abstract The paper provides a new integrity management strategy for flexible pipes using state-of-the-art inspection and monitoring methods to gather data and a novel methodology to deal with ageing pipes that may already present some degree of damage to the tensile armor wires. The new process...

... to stress concentrations and creeping phenomena. Abstract This paper discusses the development of next-generation bulkheads for Pipe-in-Pipe, aiming to replace forged bulkheads with cheaper and safer mechanical stoppers. The process started with an innovative mechanical design based on wedges...

... Abstract The paper aims at presenting the extensive qualification approach adopted for the Hybrid Composite Flexible Pipe (HFP). The test results presented are mainly focused on the capacity of the PEEK-Carbon Fiber composite material and the pipe to resist to harsh environment, which combines...

...Introduction Abstract Flexible pipes tend to be complex structures, tailor-made, and require a significant amount of engineering in preparation for manufacturing and delivery. These features increase the cost and the time required between procurement and delivery, extending the project...

... to the main riser pipe. Typically, the top and bottom connections are rigid clamps, with strategically placed polymer clamps along the length. The clamps prevent the annulus line from buckling and also manage the span on the annulus to prevent vortex induced vibrations. The objective of this study...

... Since the concept of this alternative approach involves permitting upheaval displacement of the pipe through the soil cover, a good understanding of the overlying soil behaviour and properties beyond the peak resistance is critical to ensure a robust design. upstream oil & gas offshore...

... Abstract Thermoplastic pull-through liners are an effective method or preventing corrosion of carbon steel pipe. Offshore pipelines using thermoplastic liners require a means of welding pipe joints without damaging the heat-sensitive liner. Methods used to date include the use of corrosion...

... The VIV strake system consists of a tri-shell body strapped topside around the pipe with alloy 625 straps and, if needed (for installation purposes), with additional carbon steel strapping. The strap is usually installed using a sealing clip with a manual pneumatic tensioning tool as per...

... is operating as expected. The absolute pressure, measured by both sensors close to zero, indicates that the anullar region of the flexible pipe is not flooded. Figure 7 PipeACOM digital and analog sensors in action Discussion Currently, the annular pressure that accumulates in flexible pipes...

... Coefficient C_d Bare Pipe Drag Coefficient In this section, drag coefficient values are explored for the case of a bare pipe, i.e. , with no VIV suppression devices and with a circular cross section. Steady Flow Abstract A literature review of experimental and computational...

... based on the requirements for the North Sea application. It also proved that the design would require a non-standard pipe size. The pipe and expansion system were tested in a series of surface level qualification tests and at a test rig within a downhole environment. The results of testing validated...

... Abstract Flow-induced pulsations (FLIP) are pressure oscillations generated inside flexible pipes used in dry gas applications that can cause unacceptable vibration levels and eventually failure of equipment. Because of the design of inner layer of the flexible pipe, the carcass, the frequency...

... MATS is built on a waterproof case and features a control panel with quick coupling adaptors for hydraulic connections. ATEX certified pressure, temperature, and flow rate sensors for the pipe annulus are installed inside. The control panel allows for a second pressure sensor to be installed...

... Abstract The use of Mechanically Lined Pipe (MLP) installed by the reel-lay method is a field proven solution which presents key advantages over other more expensive rigid linepipe and installation methods. Implementing the most commonly used corrosion resistant alloys (CRA) as a thin liner...