TY - GEN
T1 - Investigation of pressure losses in eccentric inclined annuli
AU - Rushd, S.
AU - Sultan, R. A.
AU - Rahman, A.
AU - Kelessidis, V.
N1 - Publisher Copyright:
© 2017 ASME.
PY - 2017
Y1 - 2017
N2 - Accurate pressure drop estimation is vital in the hydraulic design of annular drillholes in Petroleum Industry. The present study investigates the effects of fluid velocity, fluid type, fluid rheology, drillpipe rotation speed, drillpipe eccentricity and drillhole inclinationon on pressure losses with the presence of cuttings using both experiments and computational fluid dynamics (CFD). The eccentricity of the drillpipe is varied in the range of 0 - 100% and it rotates about its own axis at 0 - 150 rpm. The diameter ratio of the simulated drillhole is 0.56 and it is inclined in the range of 0 - 15°. The effects of fluid rheology are addressed by testing power law and yield power law fluids. Both of the laminar and turbulent conditions are experimentally tested and numerically simulated. Experimental data confirmed the validity of current CFD model developed using ANSYS 16.2 platform. The goal of the current work is to develop a comprehensive CFD tool that can be used for modeling the hydraulic conditions associated with hole cleaning in extended reach drilling.
AB - Accurate pressure drop estimation is vital in the hydraulic design of annular drillholes in Petroleum Industry. The present study investigates the effects of fluid velocity, fluid type, fluid rheology, drillpipe rotation speed, drillpipe eccentricity and drillhole inclinationon on pressure losses with the presence of cuttings using both experiments and computational fluid dynamics (CFD). The eccentricity of the drillpipe is varied in the range of 0 - 100% and it rotates about its own axis at 0 - 150 rpm. The diameter ratio of the simulated drillhole is 0.56 and it is inclined in the range of 0 - 15°. The effects of fluid rheology are addressed by testing power law and yield power law fluids. Both of the laminar and turbulent conditions are experimentally tested and numerically simulated. Experimental data confirmed the validity of current CFD model developed using ANSYS 16.2 platform. The goal of the current work is to develop a comprehensive CFD tool that can be used for modeling the hydraulic conditions associated with hole cleaning in extended reach drilling.
UR - https://www.scopus.com/pages/publications/85032176258
U2 - 10.1115/OMAE2017-62310
DO - 10.1115/OMAE2017-62310
M3 - Conference contribution
AN - SCOPUS:85032176258
T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
BT - Polar and Arctic Sciences and Technology; Petroleum Technology
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2017
Y2 - 25 June 2017 through 30 June 2017
ER -