Processing

Please wait...

Settings

Settings

Goto Application

1. WO2007146276 - SURFACE TEXTURES FOR EARTH BORING BITS

Publication Number WO/2007/146276
Publication Date 21.12.2007
International Application No. PCT/US2007/013760
International Filing Date 11.06.2007
IPC
E21B 10/22 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
10Drill bits
08Roller bits
22characterised by bearing, lubrication or sealing details
F16C 33/32 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
30Parts of ball or roller bearings
32Balls
CPC
E21B 10/22
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
08Roller bits
22characterised by bearing, lubrication or sealing details
Applicants
  • BAKER HUGHES INCORPORATED [US]/[US] (AllExceptUS)
  • LIN, Chih, C. [US]/[US] (UsOnly)
Inventors
  • LIN, Chih, C.
Agents
  • WELBORN, Brian, S.
Priority Data
11/760,89211.06.2007US
60/812,53909.06.2006US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SURFACE TEXTURES FOR EARTH BORING BITS
(FR) TEXTURES SUPERFICIELLES POUR TRÉPANS DE FORAGE
Abstract
(EN)
A texture pattern is applied to bearing surfaces of earth-boring bits, especially the bearings of earth boring bits of the roller cutter variety. The textured surface that may be applied to either or both sides of the thrust washer faces, bearing faces, inlays, or thrust shoulders, or a combination thereof.
(FR)
L'invention concerne un motif de texture appliqué sur des surfaces de palier de trépans de forage, en particulier les paliers des trépans de forage du type trépans à molettes. La surface texturée peut être appliquée sur un côté ou sur les deux côtés des faces de rondelles de butée, des faces de palier, des incrustations, ou des épaulements de butée, ou une combinaison de ceux-ci.
Latest bibliographic data on file with the International Bureau