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Geological Engineering: Proceedings of the 1st International Conference (ICGE 2007)

Editor
Baosong Ma
Baosong Ma
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ISBN:
9780791802922
No. of Pages:
1760
Publisher:
ASME Press
Publication date:
2009

According to the characteristics of turbine drilling at the hole-bottom, by applying mathematics and hydraulic theory etc., the parameters of flushing fluid in the hole annular space were studied and optimized, and a basic and practical equation was set up to help to determine hydraulic friction in scientific drilling. Thus, the relative measures which can reduce fluid moving resistance may be taken to control the pressure effectively in the drilling hole.

Abstract
Introduction
Theory of Turbulent Flow in Annular Space
Calculation of Hydraulic Loss of Turbine Drill
Analysis of Pressure Control
Conclusions
Reference
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