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A 3D FEM methodology for simulating the impact in rock-drilling hammers
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
A three-dimensional (3D)finite element approach for modeling impact as it occurs in impact tools used in rock drilling is presented. The model permits one to simulate the energy transmission to the rock, the bit-rock ...
Sistema inteligente para la selección de brocas de perforación de pozos
(2003-09-08)
The present work begins with a review of the literature on bit selection methods for oil well drilling. A proposal for the structure and organization of a drilling database and a knowledge base, is described. Previous ...
Sistema inteligente para la selección de brocas de perforación de pozos
(2003-09-08)
The present work begins with a review of the literature on bit selection methods for oil well drilling. A proposal for the structure and organization of a drilling database and a knowledge base, is described. Previous ...
Controlled Trim-Blasting Model to Improve Stability and Reduce Vibrations at a Production Gallery of the San Ignacio de Morococha S.A.A. Mining Company
(IOP Publishing Ltd, 2019-11-25)
This paper presents a blasting method called controlled trim blasting, in which the rock mass of an unstable gallery where high levels of vibration have been detected is analyzed. This methodology comprises a drilling mesh ...
Modeling impact in down-the-hole rock drilling
(PERGAMON-ELSEVIER SCIENCE LTD, 2000)
In this work a study of impact in Down-the-Hole (DTH) rock drilling is carried out. We present an alternative to a method previously introduced by Lundberg and his co-workers. Our model is formulated in terms of the ...
Mine hard rock excavation with no blastingExplotación minera sin voladura
(Universidad Nacional Mayor de San Marcos, Facultad de Ingeniería Geológica, Minera, Metalúrgica y Geográfica, 2009)
Drill-string horizontal dynamics with uncertainty on the frictional force
(Elsevier, 2013-01)
This paper analyzes the dynamics of a horizontal drill-string. In this dynamics, the frictional forces between the column and the borehole are relevant and uncertain. A stochastic model is proposed for the frictional ...
Identification of lift-off mechanism failure for salt drill-in drilling fluid containing polymer filter cake through adsorption/desorption studies
(ELSEVIER SCIENCE BV, 2010)
Drilling fluid`s contact with the productive zone of horizontal or complex wells can reduce well productivity by fluid invasion in the borehole wall. Salted drilling drill-in fluid containing polymers has often been applied ...