S-lay is a widely used method for offshore pipe installation.
Subsequently, a case study is performed to determine the tolerable crack sizes in an idealized pipe installation.
Two types of blackbody with different heat pipe installation have also been proposed and numerically investigated to verify which design is more applicable for on-board blackbody.
However, although careful attention may be paid during pipe installation, there is still a possibility that a pipeline may experience non-uniform loading or bedding conditions during its lifetime, which may lead to pipe failure.
Overall curvi-linear trend (r2 = 0.76) and the Von Bertalanffy non-linear model for sediment accumulation through time for all four sites, suggests highest sediment accumulation occurs at approximately 235 days following pipe installation at 65 ± 22% of pipe volume.
The results show that both design parameter (i.e., GHE pipe installation depth) and operational parameters (i.e., circulation fluid flow velocity) have major influence on the GHE performance.
In this paper, based on small deformation theory, basic theoretical model on the drill pipe installation of subsea manifolds is proposed and OrcaFlex software is used to make a simulation on setting up the corresponding numerical model in which the installation process is divided into three main phases.
Base on the calibrated model, a series of sensitivity analyses are conducted on the influence of geological, design, and operational factors intermittent operation mode of GHE achieves higher such as the initial ground temperature profile, GHE pipe installation depth, circulation fluid flow velocity, inlet temperature, subsurface water flow velocity, and material thermal properties.
Only annual PCE exposures were calculated because only move-in and pipe installation years were available.
We could estimate only annual PCE exposures because only move-in and pipe installation years were available.
