The effect of drillpipe rotation on hole cleaning during directional well drilling

@inproceedings{Snchez1997TheEO,
  title={The effect of drillpipe rotation on hole cleaning during directional well drilling},
  author={Rodrigo S{\'a}nchez and Jamal Joseph Azar and A. A. Bassal and Andr{\'e} Leibsohn Martins},
  year={1997}
}
The effect of drillpipe rotation on hole cleaning during directional well drilling is investigated. An 8 diameter wellbore simulator, 100 ft long, with a 4 drillpipe was used for the study. The variables considered in this experimental work are: rotary speed, hole inclination, mud rheology, cuttings size, and mud flow rate. Over 600 tests were conducted. The rotary speed was varied from 0 to 175 rpm. High viscosity and low viscosity bentonite muds and polymer muds were used with 1/4 crushed… CONTINUE READING