期刊
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
卷 23, 期 2, 页码 569-577出版社
KOREAN SOC MECHANICAL ENGINEERS
DOI: 10.1007/s12206-008-1111-4
关键词
Solid-liquid mixture flow; Slim hole annulus; Particle concentration; Pressure drop
资金
- Brain Korea 21 Project in 2007
An experimental study was conducted to Study solid-liquid mixture Upward hydraulic transport of solid particles in vertical and inclined annuli with rotating inner cylinder. Lift forces acting on a fluidized particle play a central role in many important applications, Such as the removal of drill cuttings in horizontal drill holes, sand transport ill fractured reservoirs and sediment transport, etc. Annular fluid velocities varied from 0.4 m/s to 1.2 m/s. Effect of annulus inclination and drill pipe rotation oil the carrying capacity of drilling fluid, particle rising velocity, and pressure drop ill the slim hole annulus have been measured for fully developed flows of water and of aqueous Solutions of sodium carboxymethyl cellulose (CMC) and bentonite, respectively. For higher particle feed concentration, the hydraulic pressure drop of mixture flow increases due to the friction between the wall and solids or among solids.
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