Effective use of water in a system for water driven hammer drilling

被引：10

作者：

Tuomas, G ^{[1
]}

机构：

[1] Lulea Univ Technol, Div Renewable Energy, SE-97187 Lulea, Sweden

来源：

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY | 2004年 / 19卷 / 01期

关键词：

drilling; DTH; hammer; down-the-hole; particle; flow; water; simulation;

D O I：

10.1016/j.tust.2003.08.0011

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Drilling with water driven down-the-hole (DTH) hammers is a recently developed method for competitive production of boreholes. In order to prevent large amounts of water being used during operation, the drilling fluid is here directly processed into a quality acceptable for reuse. The effectiveness is evaluated in well drilling with a mobile prototype water cleaning and pressurising unit. Especially the presence of abrasive particles in the fluid can drastically reduce tool life and make the method inefficient. The vital significance of this relation has called for detailed studies and a process simulation model for determining particle concentration and size distribution has been developed. This paper describes the model and how it is applied. Simulation results of different system configurations are also presented. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：69 / 78

页数：10