- Volume 26 Issue 2
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An Experimental Study of Cuttings Transport in Directional Slim Hole Drilling
방향성 소구경 굴착의 입자 이송특성에 관한 연구
- Received : 2011.11.30
- Accepted : 2012.04.19
- Published : 2012.04.30
During drilling, the precipitation velocity of cuttings within an annulus depends on the density and configuration of the cuttings, and on the density, viscosity, and rheological characteristics of the drilling fluid. In directional drilling in particular, it is difficult to adjust and control the cuttings. In contrast to vertical drilling, it is very important to evaluate the flow characteristics of a drilling flow field. However, research on the transfer features of cuttings is inadequate. In this study, in order to identify transfer features of cuttings, an experiment was performed under wide-ranging conditions by constructing a slim hole annulus (
Directional drilling;Slim hole drilling;Drilling fluid;Cuttings;Solid-liquid two phase flow
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