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Keywords: frictional pressure loss
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187151-MS
... conditions. In directional wells, rock cuttings fall to the low side of the wellbore. As cutting beds build up and annular cuttings concentration increases, the frictional pressure loss between the drillpipe and wellbore increases. This could lead to more torque and drag related problems such as buckling...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166103-MS
... drilling to be achieved using a lower, but optimized, flow rate, rheological properties, and mud weight. In this paper, the frictional pressure loss during Casing Drilling operation is evaluated using Computational Fluid Dynamics. Annular pressure losses have received substantial attention in theoretical...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166112-MS
... ECD changes and potentially preventing fracturing. There are numerous research studies that have investigated the frictional pressure losses in the annulus during CwD operation using two main approaches; i.e., analytical and numerical methods. Analytical solutions were developed for specific...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 2009
Paper Number: SPE-124190-MS
..., and the complicated geometrical designs of these devices, which relatively irregular and complicated, increase the complexity of the frictional pressure loss calculations. This study examines the effect of the various geometrical parameters of the commonly used devices, eccentricity, and rotation of the devices, flow...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–29, 2004
Paper Number: SPE-89747-MS
... Abstract The impact of spherical, flake, and fiber microparticle addition on frictional pressure loss in turbulent gas flows was experimentally investigated. Pressures up to 6.6 MPa (955 psig) were studied. Drag reduction ( i.e ., reduced frictional pressure loss) was clearly observed only...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1999
Paper Number: SPE-56467-MS
... injection rate bottomhole assembly perforation bypassed pay hydraulic fracturing packer hydrocarbon production stimulation fluid system frictional pressure loss upstream oil & gas production enhancement well intervention flow in porous media production monitoring fracturing fluid coiled...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 22–25, 1995
Paper Number: SPE-30488-MS
... Drill Pipe Rotation Effects on Frictional Pressure Losses in Slim Annuli. SPE-member Abstract The effect of rotation on the frictional pressure loss in an annulus has been studied experimentally. A direct comparison with results obtained with a 3D CFD (computational fluid dynamics) code has...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 22–25, 1995
Paper Number: SPE-30525-MS
... and pressure loss. During CLEAN-OUT TESTS, methods for circulating out stationary gas positioned in traps in the well were studied. New correlations for gas transport velocities and frictional pressure losses have been developed based on these data as well as data from two low pressure flow loop tests...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 6–9, 1991
Paper Number: SPE-22583-MS
... not be sufficient to ensure efficient hole cleaning and the prevention of cuttings bed formation, with attendant stuck pipe problems. P. 443 momentum viscosity drilling fluid chemistry simulation optimisation fluid model interaction penetration upstream oil & gas frictional pressure loss...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 5–8, 1983
Paper Number: SPE-11993-MS
... which would allow a comparison of the relative accuracy of the various proposed techniques. proposed techniques. In this study, experimental pressure gradient data have been taken in two 6000 ft. wells. Frictional pressure losses for single phase flow (mud only) in two pressure losses for single phase...

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