CA978666A - Radioactive tracer system to indicate drill bit wear or failure - Google Patents

Radioactive tracer system to indicate drill bit wear or failure

Info

Publication number
CA978666A
CA978666A CA179,071A CA179071A CA978666A CA 978666 A CA978666 A CA 978666A CA 179071 A CA179071 A CA 179071A CA 978666 A CA978666 A CA 978666A
Authority
CA
Canada
Prior art keywords
failure
drill bit
radioactive tracer
bit wear
tracer system
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.)
Expired
Application number
CA179,071A
Other versions
CA179071S (en
Inventor
Bernard A. Fries
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.)
Chevron USA Inc
Original Assignee
Chevron Research and Technology Co
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
Priority claimed from US00281869A external-priority patent/US3818227A/en
Application filed by Chevron Research and Technology Co filed Critical Chevron Research and Technology Co
Application granted granted Critical
Publication of CA978666A publication Critical patent/CA978666A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21B12/00—Accessories for drilling tools
    • E21B12/02—Wear indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
    • 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
    • E21B10/00—Drill bits
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
    • E21B21/067—Separating gases from drilling fluids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
  • Lubricants (AREA)
CA179,071A 1972-08-18 1973-08-17 Radioactive tracer system to indicate drill bit wear or failure Expired CA978666A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00281869A US3818227A (en) 1970-07-17 1972-08-18 Radioactive tracer system to indicate drill bit wear or failure

Publications (1)

Publication Number Publication Date
CA978666A true CA978666A (en) 1975-11-25

Family

ID=23079109

Family Applications (1)

Application Number Title Priority Date Filing Date
CA179,071A Expired CA978666A (en) 1972-08-18 1973-08-17 Radioactive tracer system to indicate drill bit wear or failure

Country Status (2)

Country Link
CA (1) CA978666A (en)
GB (2) GB1421440A (en)

Also Published As

Publication number Publication date
GB1421439A (en) 1976-01-21
GB1421440A (en) 1976-01-21

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