FR2240345A1 - Excessive wear prevented in turbodrill thrust bearings - elements of stationary member are electrically bonded to rotor - Google Patents

Excessive wear prevented in turbodrill thrust bearings - elements of stationary member are electrically bonded to rotor

Info

Publication number
FR2240345A1
FR2240345A1 FR7329022A FR7329022A FR2240345A1 FR 2240345 A1 FR2240345 A1 FR 2240345A1 FR 7329022 A FR7329022 A FR 7329022A FR 7329022 A FR7329022 A FR 7329022A FR 2240345 A1 FR2240345 A1 FR 2240345A1
Authority
FR
France
Prior art keywords
elements
thrust bearings
rotor
stationary member
excessive wear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7329022A
Other languages
French (fr)
Other versions
FR2240345B3 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cegelec SA
Original Assignee
Cegelec SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cegelec SA filed Critical Cegelec SA
Priority to FR7329022A priority Critical patent/FR2240345A1/en
Publication of FR2240345A1 publication Critical patent/FR2240345A1/en
Application granted granted Critical
Publication of FR2240345B3 publication Critical patent/FR2240345B3/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/02—Adaptations for drilling wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/003—Bearing, sealing, lubricating details
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/02—Equipment or details not covered by groups E21B15/00 - E21B40/00 in situ inhibition of corrosion in boreholes or wells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/22—Sliding surface consisting mainly of rubber or synthetic rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2352/00—Apparatus for drilling

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

In the thrust bearings of a turbodrill having elements consisting on the one hand of plain steel discs, and on the other of discs covered with an elastomer, to alleviate the corrosion caused electrolytically by the constituents of the mud, the same potential in both sets of elements is obtained by an electrical conductor attached to one element rubbing on the other. Prevents electrolytic corrosion forming ridges on the arbor discs which quickly destroys the elastomeric cover of the stator stops.
FR7329022A 1973-08-08 1973-08-08 Excessive wear prevented in turbodrill thrust bearings - elements of stationary member are electrically bonded to rotor Granted FR2240345A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7329022A FR2240345A1 (en) 1973-08-08 1973-08-08 Excessive wear prevented in turbodrill thrust bearings - elements of stationary member are electrically bonded to rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7329022A FR2240345A1 (en) 1973-08-08 1973-08-08 Excessive wear prevented in turbodrill thrust bearings - elements of stationary member are electrically bonded to rotor

Publications (2)

Publication Number Publication Date
FR2240345A1 true FR2240345A1 (en) 1975-03-07
FR2240345B3 FR2240345B3 (en) 1976-07-23

Family

ID=9123768

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7329022A Granted FR2240345A1 (en) 1973-08-08 1973-08-08 Excessive wear prevented in turbodrill thrust bearings - elements of stationary member are electrically bonded to rotor

Country Status (1)

Country Link
FR (1) FR2240345A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0209310A2 (en) * 1985-07-13 1987-01-21 Weir Drilling Ltd. Axial balancing device for downhole drilling motors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0209310A2 (en) * 1985-07-13 1987-01-21 Weir Drilling Ltd. Axial balancing device for downhole drilling motors
EP0209310A3 (en) * 1985-07-13 1988-05-11 Weir Drilling Ltd. Axial balancing device for downhole drilling motors

Also Published As

Publication number Publication date
FR2240345B3 (en) 1976-07-23

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