Slim hole 환형관내 고-액 2상 헬리컬 유동에 관한 연구

A Study on the solid-liquid helical flow in a slim hole Annulus

  • 우남섭 (성균관대학교 기계공학과 대학원) ;
  • 황영규 (성균관대학교 기계공학부) ;
  • 윤치호 (한국지질자원연구원 지반안전연구부) ;
  • 김영주 (지질자원연구원)
  • 발행 : 2006.08.23

초록

An experimental investigation is carried out to study 2-phase vertically upward hydraulic transport of solid particles by water and non-Newtonian fluids in a slim hole concentric annulus with rotation of the inner cylinder. Rheology of particulate suspensions in viscoelastic fluids is of importance in many applications such as particle removal from surfaces, transport of proppants in fractured reservoir and cleaning of drilling holes, etc. In this study a clear acrylic pipe was used in order to observe the movement of solid particles. Annular fluid velocities varied from 0.2 m/s to 3.0 m/s. Pressure drops and average flow rate and particle rising velocity are measured. For both water and 0.2% CMC solutions, the higher the concentration of the solid particles is, the larger the pressure gradients become.

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