Oscillation Stories

Once the influence length and the maximum displacement are calculated, an effective friction coefficient is estimated as the mean value of the instantaneous friction coe...

This book is about those special spirits who are two zodiacs. Whether it be somewhat or the person is in the perfect middle ground. Cusps get little recognition since ma...

The applications of these results are numerous for all deviated wells such as horizontal or extended reach drilling wells. This paper should contribute to reduce unpredi...

To react to this controversy, a full-scale drilling bench has been developed to test drill bits in push-the-bit, point-the-bit or hybrid push-point mode. This new facili...