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Keywords: friction factor
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Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-665
... to extract gas from offshore NGH reservoirs. sediment target zone ngh sediment gao horizontal section horizontal well axial force hookload mud flow rate friction factor directional drilling upstream oil & gas pressure drop calculation drilling operation gas hydrate reservoir...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-445
... NOMENCLATURE As Steel area of pipeline cross section - Thermal expansion coefficient E - Young s module Wsub Pipeline submerged weight - Temperature variation axi - Axial friction factor lat - Lateral friction factor slep - Friction factor between pipeline and sleeper Nef - Effective axial force...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-410
... configurations, and the best arrangement of counter weight blocks is discussed. rubble displacement caisson application friction factor counter weight block different pattern maximum tension inner rubble mound experimental study counterweight block resistance accidental wave breakwater...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-152
... monitoring production control reservoir surveillance elbow pipe flow element friction factor coal particle track gas superficial velocity coal-ga flow loading ratio gas flow gas streamline pipe coal-ga loading ratio coal-transport system upstream oil & gas streamline horizontal pipe...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-512
... numerical results show an area where the current's velocity is negative, i.e. the dense fluid is moving downslope. fluid mech experiment gravity current different entrainment relation entrainment cenedese friction factor adduce turner simpson relation numerical simulation upstream oil...
Proceedings Papers

Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-115
... 2 hydrate formation and no-formation. As the result, the amount of CO 2 hydrate estimated from temperature suggested decreasing as the flow rate increases. The difference of friction factor between both conditions becomes small with increase of Reynolds number in the upstream part of packed column...
Proceedings Papers

Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-118
.... In the paper, a physical experiment is carried out to evaluate the friction factor of the counter-weight blocks and to compare with a normal type flat concrete block. The friction factor of counter-weight block with rubbles inside the center hole becomes larger than the normal one. INTRODUCTION Global...
Proceedings Papers

Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-072
... ifb. The coefficient fb is the linearlized friction factor obtained by Lorentz condition of equivalent work (Sollitt and Cross, 1972), and Cr is an inertia coefficient of the flow in the porous medium and defined as Cr MC)1( , where CM is the added mass coefficient. Considering the wave breaking...
Proceedings Papers

Paper presented at the The Nineteenth International Offshore and Polar Engineering Conference, July 21–26, 2009
Paper Number: ISOPE-I-09-011
..., Liaoning, China ABSTRACT It is found that the leak location error depends on friction factor based on the research on pressure gradient method. A new method based on BP neural network forecasting friction factor, suitable to the running pipeline, is put forward. This technique has successfully located...
Proceedings Papers

Paper presented at the The Fourteenth International Offshore and Polar Engineering Conference, May 23–28, 2004
Paper Number: ISOPE-I-04-254
... oil & gas foundation proc 13th international offshore wall friction pore water pressure shear strength recovery thixotropy penetration depth reservoir characterization experiment suction foundation friction factor international offshore ABSTRACT The skirt suction foundation...
Proceedings Papers

Paper presented at the The Fourteenth International Offshore and Polar Engineering Conference, May 23–28, 2004
Paper Number: ISOPE-I-04-335
... time-dependent mild-slope equation to solve the boundary value problems. This mild slope equation involves the parameters of the porous medium including the porosity, the friction factor and the inertia coefficient etc. The validity of the calculations was first confirmed from the comparisons...
Proceedings Papers

Paper presented at the The Fourteenth International Offshore and Polar Engineering Conference, May 23–28, 2004
Paper Number: ISOPE-I-04-010
... depth cylinder calculation friction factor Wave Diffraction in a Current around a Large-scale Vertical Circular Cylinder Yucheng Li, Deliang Liu, Bing Chen, Linpu Li Civil and Hydraulic Engineering School, Dalian University of Technology Dalian ,Liaoning, China ABSTRACT The wave diffraction...
Proceedings Papers

Paper presented at the The Twelfth International Offshore and Polar Engineering Conference, May 26–31, 2002
Paper Number: ISOPE-I-02-138
... from various vessel sizes are quantified. offshore pipeline pipeline reach efficiency assessment subsea system mooring system lateral force anchor friction factor design stress lateral displacement displacement anchor force resistance pipeline lateral friction factor penetration...
Proceedings Papers

Paper presented at the The Twelfth International Offshore and Polar Engineering Conference, May 26–31, 2002
Paper Number: ISOPE-I-02-139
... friction factor vortex rock berm current action geometry experiment bed shear stress berm upstream oil & gas shear stress stability oscillatory flow sediment transport production monitoring reservoir surveillance mechanism crest steady current Failure Modes of Rock Berms...
Proceedings Papers

Paper presented at the The Ninth International Offshore and Polar Engineering Conference, May 30–June 4, 1999
Paper Number: ISOPE-I-99-334
... satisfying the porous-medium dispersion relation is first studied. It is found that the wave number characteristics are strongly influenced by the wave-effect parameter and the friction factor. The reflection and dissipation of a monochromatic surface wave by a sloping beach or dam are then investigated...
Proceedings Papers

Paper presented at the The Ninth International Offshore and Polar Engineering Conference, May 30–June 4, 1999
Paper Number: ISOPE-I-99-102
... external friction factor aspect ratio diameter plug upheaval soil plug sample 1 caisson shear strength caisson installation thickness plug failure foundation installation test installation pressure suction caisson subsea system friction factor Proceedings of the Ninth (1999...
Proceedings Papers

Paper presented at the The Eighth International Offshore and Polar Engineering Conference, May 24–29, 1998
Paper Number: ISOPE-I-98-011
... flowmeter. The particle sizes used are 30–40 mesh and 8–10 mesh. The results over a turbulent flow range of 10 4 < Re < 10 5 show the pressure gradients or friction factors are smaller for the spherical glass beads than the irregular-shaped sands. The larger the size of particles is, the larger...
Proceedings Papers

Paper presented at the The Seventh International Offshore and Polar Engineering Conference, May 25–30, 1997
Paper Number: ISOPE-I-97-197
... = pipe modulus of elasticity, v = Poisson's ratio of pipe, and D,t = pipe external diameter, and wall thickness. Pipeline elongation due to frictional resistance is; ALf =- I s f .dx= f .w.z~2 2.As .E where, oof = frictional strain, f = friction factor, and W = submerged weight of the pipe. (3) Pipeline...
Proceedings Papers

Paper presented at the The Third International Offshore and Polar Engineering Conference, June 6–11, 1993
Paper Number: ISOPE-I-93-233
... carried out to define the geometrical boundary distance and number of elements on the free surface boundary. The effects of wall s~ope, porosity and friction factor on the reflection coefficient have been presented and discussed. . ICEYVORDS: Wave reflection, permeable seawall, identity formula, linear...
Proceedings Papers

Paper presented at the The First International Offshore and Polar Engineering Conference, August 11–16, 1991
Paper Number: ISOPE-I-91-144
... 2 that friction factors for EC-437 and INERTA-100 are the same within the range of calculation accuracy. The effect of the movement velocity on the friction factor is similar to that observed by Edwards(1980). Moreover, as the results have shown, the friction factor at a constant movement velocity...

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