Well drilling tool with diamond thrust bearings

Patent · Tue Nov 04 00:00:00 EST 1986

OSTI ID:7005119

Nagel, D D

This patent describes a down hole well drilling tool adapted for connection at one end to the lower end of a drill string and at the other end to a drill bit to be driven thereby, comprising tubular housing means and rotary shaft means supported therein and extending therefrom and adapted to support a drill bit, motor means in the housing means actuated by flow of drilling fluid therethrough and operable to rotate the shaft means, bearing means in the housing means supporting the rotary shaft means, lubricating means for the bearing means, in which the bearing means comprises a radial bearing having one bearing member supported on the housing and another bearing member supported on and rotatable with the rotary shaft means, and an annular thrust bearing for vertical or longitudinal thrust loads comprising a first bearing member supported on the housing and a second bearing member supported on and rotatable with the rotary shaft means.

• Assignee: Maurer Engineering, Inc., Houston, TX
• Patent Number(s): US 4620601
• OSTI ID: 7005119
• Resource Relation: Patent File Date: Filed date 28 Sep 1981
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
42 ENGINEERING
WELL DRILLING
CONNECTORS
DRILL BITS
DRILL PIPES
BEARINGS
DIAMONDS
DRILLING FLUIDS
LUBRICATION
MOTORS
NATURAL GAS WELLS
OIL WELLS
POLYCRYSTALS
SHAFTS
SPACE DEPENDENCE
SUPPORTS
CARBON
CONDUCTOR DEVICES
CRYSTALS
DRILLING
DRILLING EQUIPMENT
ELECTRICAL EQUIPMENT
ELEMENTAL MINERALS
ELEMENTS
EQUIPMENT
FLUIDS
MACHINE PARTS
MECHANICAL STRUCTURES
MINERALS
NONMETALS
PIPES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)