Imaging the wave velocity field surrounding a borehole while drilling is a promising and
urgently needed approach for extending the exploration range of the borehole point. This …

This paper surveys the field of measurement-while-drilling (MWD) technology for
smalldiameter drilling machines. Using this technology, mechanical data (eg, torque, thrust …

One of the most important products of the majority of tools, processes and, phenomena in
mining engineering and earth sciences are high-frequency elastic waves, often referred to …

One of the biggest challenges of the 21st century is to reduce carbon emissions and offshore
wind turbines seem to be an efficient solution. However, during the installation phase, high …

This study aims to predict rock properties using soft computing techniques such as multiple
regression, artificial neural network (MLP and RBF) models, taking drill bit speed …

In many engineering applications such as mining, geotechnical and petroleum industries,
drilling operation is widely used. The drilling operation produces sound by-product, which …

This paper deals with the analysis of effects of mechanical properties of rock on penetration
rate and specific energy. Five specimens were collected from the four locations in Federal …

Lithological recognition is of great significance in oil drilling fields. To investigate the
relationship between rock properties and the vibro-acoustic signal characteristics generated …

随钻岩性识别是一种便捷, 高效的地层信息获取技术, 具有即时, 准确, 环保以及节能等优点,
可应用于岩石边界确定, 支护参数设计, 爆破参数设计以及区域地层强度参数识别等工程领域 …

The main purpose of the study is to develop a general prediction model and to investigate
the relationships between sound level produced during drilling and physical properties such …