E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/10 (2006.01)
Patent
CA 2734715
Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill string coupled to a bottom hole assembly or a coiled tubing coupled to a bottom hole assembly and an ultra-low friction coating on at least a portion of the exposed outer surface of the body assembly, wherein the coefficient of friction of the ultra-low friction coating is less than or equal to 0.15. The coated drill stem assemblies disclosed herein provide for reduced friction, vibration (stick-slip and torsional), abrasion and wear during straight hole or directional drilling to allow for improved rates of penetration and enable ultra-extended reach drilling with existing top drives.
Linvention a trait à des ensembles de tiges de forage munis de revêtements à coefficient de frottement très faible pour les opérations de forage souterraines. Sous une certaine forme, les ensembles de tiges de forage munis de revêtements et destinés aux opérations de forage rotatif souterraines comprennent un ensemble corps ayant une surface externe découverte qui possède un train de tiges de forage accouplé à un ensemble de fond de trou ou un tube spiralé accouplé à un ensemble de fond de trou. Au moins une partie de la surface externe découverte de lensemble corps présente un revêtement à coefficient de frottement très faible qui est inférieur ou égal à 0,15. Ces ensembles de tiges de forage munis de revêtements permettent de diminuer le frottement, la vibration (broutage et torsion), labrasion et lusure qui se produisent au cours du forage rectiligne ou du forage dirigé afin daméliorer la vitesse davancement et le forage à long déport dans les galeries supérieures déjà existantes.
A. Ooten Biediger Erika
Bailey Jeffrey R.
Bangaru Narasimha-Rao
Elks William C.
Ertas Mehmet Deniz
Borden Ladner Gervais Llp
Exxonmobil Research And Engineering Company
LandOfFree
Ultra-low friction coatings for drill stem assemblies does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultra-low friction coatings for drill stem assemblies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra-low friction coatings for drill stem assemblies will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1922054