J. Ocean Eng. Technol. Search

CLOSE


J. Ocean Eng. Technol. > Volume 25(5); 2011 > Article
J. Ocean Eng. Technol. 2011;25(5):15-20.    
DOI: https://doi.org/10.5574/KSOE.2011.25.5.015   

Study on Solid-liquid Mixture Flow in Inclined Annulus
Kim Young-Ju,Kim Young-Hun,Woo Nam-Sub
Mineral Resources Research Division KIGAM,Naval Architecture Ocean and IT Engineering Kyungnam University,Mineral Resources Research Division KIGAM
경사 환형관내 고-액 혼합 유동특성에 관한 연구
김영주,김영훈,우남섭
한국지질자원연구원 광물자원연구본부,경남대학교 조선해양IT공학과,한국지질자원연구원 광물자원연구본부
© 2011 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Directional drilling, Particle volume concentration, Pressure loss
핵심용어: 방향성 굴착, 입자 체적율, 압력 손실
Abstract
This study carried out a series of experiments involving impact tests (Drop Weight type & Charpy type with a standard specimen and newly designed I-type specimen), hardness tests, and fracture surface observations of French-made roll shell steel (F), abnormal roll shell steel (M), reheated roll shell steel (R), and S25C steel under heat treatment conditiAn experimental study was carried out to study the solid-liquid mixture upward hydraulic transport of solid particles in vertical and inclined annuli with a rotating inner cylinder. The 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 in fractured reservoirs, sediment transport, the cleaning of particles from surfaces, etc. In this study a clear acrylic pipe was used to observe the movement of solid particles. Annular velocities varied from 0.4 to 1.2 m/s. The effect of the annulus inclination and drill pipe rotation on the carrying capacity of a drilling fluid, particle rising velocity, and pressure drop in a slim hole annulus were measured for fully-developed flows of water and aqueous solutions of CMC (sodium carboxymethyl cellulose) and bentonite. The rotation of the inner cylinder was efficient at carrying particles to some degree. For a higher particle volume concentration, the hydraulic pressure loss of the mixture flow increased because of the friction between the wall and solids or between solids.
TOOLS
Share :
Facebook Twitter Linked In Google+ Line it
METRICS Graph View
  • 0 Crossref
  •   Scopus
  • 1,057 View
  • 3 Download


ABOUT
BROWSE ARTICLES
ARTICLE CATEGORY

Browse all articles >

PUBLICATION ETHICS
FOR CONTRIBUTORS
Editorial Office
President Office BD Rm. 1302, 13 Jungang-daero 180beon-gil, Dong-gu, Busan 48821, Republic of Korea
Tel: +82-51-759-0656    Fax: +82-51-759-0656    E-mail: ksoehj@ksoe.or.kr                

Copyright © 2024 by The Korean Society of Ocean Engineers.

Developed in M2PI

Close layer
prev next