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1. WO2020198000 - SELF-ALIGNING BEARING ASSEMBLY FOR DOWNHOLE TOOLS

Publication Number WO/2020/198000
Publication Date 01.10.2020
International Application No. PCT/US2020/023835
International Filing Date 20.03.2020
IPC
E21B 17/10 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
10Wear protectors; Centralising devices
E21B 4/00 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
4Drives for drilling, used in the borehole
F16C 33/10 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
33Parts of bearings; Special methods for making bearings or parts thereof
02Parts of sliding-contact bearings
04Brasses; Bushes; Linings
06Sliding surface mainly made of metal
10Construction relative to lubrication
CPC
E21B 17/1078
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods ; ; Cables; Casings; Tubings
10Wear protectors; Centralising devices, ; e.g. stabilisers
1078Stabilisers or centralisers for casing, tubing or drill pipes
E21B 4/003
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
4Drives used in the borehole
003Bearing, sealing, lubricating details
F16C 17/105
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
17Sliding-contact bearings for exclusively rotary movement
10for both radial and axial load
102with grooves in the bearing surface to generate hydrodynamic pressure
105with at least one bearing surface providing angular contact, e.g. conical or spherical bearing surfaces
F16C 2352/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
2352Apparatus for drilling
Applicants
  • BAKER HUGHES, A GE COMPANY, LLC [US]/[US]
Inventors
  • PETERS, Volker
Agents
  • CARSON, Matt W.
Priority Data
62/822,58022.03.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SELF-ALIGNING BEARING ASSEMBLY FOR DOWNHOLE TOOLS
(FR) ENSEMBLE PALIER À AUTO-ALIGNEMENT POUR OUTILS DE FOND DE TROU
Abstract
(EN)
An apparatus for use in a drill string configured for use in a subterranean formation includes a drive shaft coupled to a drill bit, the drill bit configured to continuously rotate and penetrate within the subterranean formation, a drill string housing that houses the drive shaft, the drive shaft continuously rotating within the drill string housing relative to the drill string housing, and a bearing assembly configured bear the drive shaft within the drill string housing, the bearing assembly comprising a first bearing surface having a first curvature.
(FR)
L'invention porte sur un appareil destiné à être utilisé dans un train de tiges de forage conçu pour être utilisé dans une formation souterraine qui comprend un arbre d'entraînement couplé à un trépan, le trépan étant conçu pour tourner et pénétrer de manière continue à l'intérieur de la formation souterraine, un boîtier de train de tiges de forage qui loge l'arbre d'entraînement, l'arbre d'entraînement tournant en continu à l'intérieur du boîtier de train de tiges de forage et par rapport à celui-ci, et un ensemble palier conçu pour porter l'arbre d'entraînement à l'intérieur du boîtier de train de tiges de forage, l'ensemble palier comprenant une première surface d'appui présentant une première courbure.
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