... seabed treatment china government tolerance bearing capacity survey area platform site seabed bearing capacity Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023 by the International Society of Offshore...

... concentration factor (SCF) caused by misalignment due to the pipe manufacture tolerances. The counter-bore approach is very efficient for improving the fatigue life on the girth welds. But it may introduce a more critical position on the counter-bore area other than on the girth welds if the counter-bore...

... ABSTRACT Thermal expansion of materials at high temperature exhibits a nonlinear change with temperature. Therefore, it is difficult to design the tolerances of the shaft and bearing, bearing and body, valve disc and metal seat of traditional marine triple eccentric butterfly valves...

... fabrication and integration tolerance of the unique single bearing turret and ten stack swivels into the FPSO presented also unparalleled challenges to the construction team. INTRODUCTION The Liuhua16-2 oil field development is comprised of three oil fields namely Liuhua16-2, Liuhua20-2 and Liuhua21-2...

... and the suction pile. subsea system submerged weight tolerance transponder bucket project management suction pile sinking kar-lu teh rov subsea manifold upstream oil & gas assessment impact assessment target penetration depth seal failure probability installation strategic planning...

... Study on Rectification Methods on Cruciform Joints Exceeding the IACS Fabrication Tolerance (Phase II) Hyung-Jin Ko*, Sang-Woo Lee, Yong-Yoon Kim, Hyoung-June Jeon and Kyung-Seok Lee, Ship Structure Detail Design Department 2, Daewoo Shipbuilding and Marine Engineering Co. Ltd. Geoge-si...

... than 400 crossings and required the installation of some 3000 sleepers. Sleepers are made of precast concrete and have a width which can range from 6m to 10m to accommodate installation tolerances and in-service loads. Typical sleepers are shown in Fig. 1. These sleepers will be pre-installed along...

... position within accurate installation tolerances. This arrangement enables post metrology spool fabrication geometry for both spools to be defined from a single metrology campaign, thus saving schedule and installation costs. INTRODUCTION Tie-in Spool A tie-in spool is a short length of rigid pipe...

... algorithm nonlinear analytical solution differential equation configuration newton tolerance artificial intelligence tpbvp newton algorithm integration tolerance single shooting method subsea system absolute error boundary condition An Alternative Methodology for Static 3D Nonlinear Hanging...

... fatigue crack upstream oil & gas weld crack target curve crack initiation zone stress range uoe sawl pipe rodrigo galve pipe tolerance application imperfection lucca fatigue performance welding sn curve offshore pipeline uoe-sawl pipe qualification Abstract...

... be performed on S-lay vessels, e.g. by roller or stinger adjustment during laying. Numerical calculations are presented, illustrating the benefits in terms of suppressing free spans, achieving acceptable bending moments and reducing intervention costs. piping design span installation tolerance...

... is to summarize the SDRB replacement strategy, the new SDRB structure design, mudmat & scour protection design, dynamic cable tray design and installation tolerance analysis& control method. The design idea and method described will provide reference for other similar subsea products design in South China...

... foundation foundation design operation tolerance requirement rock blanket installation tolerance sg structure template subsea system rock blanket option grout bag contact area upstream oil & gas steel gravity substructure displacement australia An Introduction...

... estimation of fatigue life for these interface structures is of uttermost importance. On the other hand, at the design and approval stage, the evaluation of fatigue performance is based on assumptions regarding fabrication quality. Most shipbuilding standards include limits on fabrication tolerances...

... tolerances for pipe dimensions, which are easily understood in isolation; but the interrelationship between the different dimensions and their tolerances is not necessarily straightforward and is open to interpretation, especially given the variety of acceptable measurement methods. upstream oil...

... burial leading to heat gain; maintenance problems and difficulty tracking pipelines and cables when buried by more than 2.5 m. upstream oil & gas migration rate route corridor piping simulation piping design free span height offshore pipeline corridor tolerance vertical accuracy...

... to be used beyond diving depth limits which involves greater installation tolerances and larger gap to allow seal tooling access. requirement pipeline pigging upstream oil & gas tolerance qualification 46-inch diameter deepwater plem offshore pipeline spool connector foundation...

... pretension, such as manufacturing length tolerance, pile installation position tolerance, creep, etc. A soft mooring system (low stiffness, low pretension) results in large platform mean motions while a stiff mooring system (high stiffness, high pretension) results in higher mooring line loads...

... tolerance stiffened pressure vessel structural analysis probability pressure vessel deep-sea unmanned underwater vehicle limit state equation optimization maximum stress reliability index sensitivity value reliability analysis design variable sensitivity module structural...

... Hoyle (30 foundations) and Scroby Sands (30 foundations). The paper includes a discussion and evaluation of design and installation of the foundations. Installation tolerances for main components, which are installed separately offshore: pile, transition section, sea access arrangement, J-tubes...