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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
... increases, the frictional pressure loss between the drillpipe and wellbore increases. This could lead to more torque and drag related problems such as buckling, stick slip, vibration, and lockup events. Adequate annular velocity is required to transport cuttings to surface. However, because...
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
... experiment wellbore design calcium carbonate psd laboratory experiment spe 166112 drilling fluids and materials pipe rotation cwd operation application lcm exhibition frictional pressure loss particle size distribution Introduction CwD technology has shown strong potentials for drilling...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 2009
Paper Number: SPE-124190-MS
... 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 rate, and rheological properties on the annular pressure loss using c computational fluid dynamics (CFD...
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
... related to the smaller coiled tubing diameter. These are as follows: Frictional Pressure Losses: The coiled tubing conduit has a significantly smaller cross sectional area open to flow. This limited area will result in fluid frictional pressure losses that are much higher than those associated...
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 22–25, 1995
Paper Number: SPE-30488-MS
... 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 been performed for laminar flow. Experimental results for three fluids are presented...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 6–9, 1991
Paper Number: SPE-22583-MS
... frictional pressure loss wellbore drilling fluid management & disposal optimisation drilling fluid formulation spe 22583 rheology equation flowrate drilling fluid property prediction drilling fluid selection and formulation submodel society of petroleum engineers size range drilling fluids...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 5–8, 1983
Paper Number: SPE-11993-MS
... a comparison of the relative accuracy of the various 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 annuli were compared to values predicted by the Bingham Plastic and Power law...

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