... in the North Sea in 2022. Following a thorough product technology qualification via DNV, the GluBi ® pipe was approved for use on the AkerBP HOD project as the inner pipe of the 12"/16" Pipe-in-Pipe (PiP) production line to be installed by the reel-lay method. As part of the project specific qualification...

... and hence gives an interesting overview of this technology and its qualification status. insulation liner outer pipe trl4 high-performance deh-pip efficiency pipe characterization deh pip coating deh-pip offshore technology conference upstream oil & gas inner pipe qualification...

... performance, lower voltage supply level enabling for longer flowlines, and lighter power chains. subsea system reservoir surveillance high-performance deh-pip metals & mining production logging flowline production monitoring piping simulation inner pipe electrical conductivity pipe...

..., installation, pre-stressing, and operation. The complex loading history of the inner pipe and the expansion spools was included in the global 3D, finite element (FE) models that were used to validate the pipeline profile, backfilling, pre-stressing temperature, and sequence of operations. Results...

...-in-Pipe (PiP) with a restricted electrical heating capability provided by helically wound copper wires laid between the inner pipe and the insulation in the annulus. The main advantage of EHTF are: future tie-back integration, unlock marginal reserves, access to HPHT pipeline, extend field life...

... conference subsea system insulation flowline ilpis tm ehtf system norwegian sea condensate reservoir heating wire pipe upstream oil & gas inner pipe outer pipe main component stalk bulkhead new technology enable development complex reservoir inline structure OTC-29523-MS New...

... considerations required in deploying the method on an undulating seabed taking into account unplanned buckles or spans and the necessary adjustment to be made to pre-determined buckle sites. The study includes the effects of inner pipe snaking (with residual curvature) within a near straight outer pipe due...

... that is then welded to the inner pipe. The pipe-in-pipe system has excellent thermal insulation characteristics. However, the integrity assessment of pipe-in-pipe swage weld is outside the range of validity of existing engineering critical assessment (ECA) codes, and this presents challenges in developing welding...

... configuration that has been adapted and improved in order to include a heat tracing capability while optimizing laying rates. As commonly used in heat traced pipe in pipe concept (e.g. onshore applications), the electrical cables are wound around the inner pipe, covered with insulating material and enclosed...

.... Design considerations for trawl gear impact on lateral buckling and operational aspects of clad and lined pipes for HP–HT and sour service applications are also discussed. pipe-in-pipe system pip system failure mode piping design safety class centraliser sriskandarajah inner pipe thermal...

... the inner pipe (flowline) under the insulation. The EHTF system provides the following advantages: Low power heating requirements thanks to the thermal efficiency of the insulation system: typically in the order of kilowatts rather than megawatts for competing high-voltage systems; High level...

... other heat traced pipe in pipe concept, the electrical cables are spirally winded around the inner pipe and, covered with insulating material and enclosed in an outer pipe. Optical fibers are added in order to monitor stress and temperature. In the case of this technology, several innovations aiming...

... upstream oil & gas buckle piping simulation lateral buckle piping design pipe-soil interaction pipe inner pipe end expansion friction guidance resistance deformation prediction offshore pipeline axial friction Presentation of OTC-25396-MS Presentation of OTC-25396-MS...

... the vessel, but with flush welded half shells to avoid diameter changes. The outer pipe is typically swaged down close to the inner pipe and welded directly to outer surface of inner pipe between stalks. This full penetration weld (hereafter called swaged weld) works as a structural connection between...

... Abstract The interest in the numerical modeling of a deepwater pipe-in-pipe system (PiP) at a free span location is growing. In a free span, the inner pipe bends substantially due to internal pressure and temperature and possibly contacts the outer pipe. Concerns arise how the interaction...

... Abstract In typical insulated Pipe-in-pipe (PIP) systems, both extremities of the outer jacket pipe are swaged down close to the inner pipe and are welded directly to the outer surface of the inner pipe. This full penetration weld (hereafter called swaged weld) works as a structure connection...

... features such as real time monitoring of the performance of the pipeline for structural integrity, thermal performance and leaks using fiber optic technology, the safety of the subsea pipeline can be further enhanced. bulkhead weld lng inner pipe piping design otc 19824 offshore technology...

... mechanically mechanical support pip system outer pipe inner pipe piping simulation waterstop system fabrication otc 19951 buoyancy module offshore pipeline centralizer lateral upstream oil & gas pipe offshore technology conference qualification test piping design OTC 19951 Design...

...-lay method. During the pipe welding and lowering process, the vessel tensioner grabs the outer pipe with the inner pipe free-standing inside the outer pipe. Therefore a large top lay tension is applied to the outer pipe while the inner pipe is under a sizable compression due to its own weight...

...). Owing to a very low contraction coefficient, 36% Ni steel allows the mechanical connection of the inner Pipe to the outer Pipe, which then makes the assembly a true PIP in terms of construction and installation. The insulation fills the sealed annular space and ensures thermal insulation only, allowing...