FR2135464A1 - - Google Patents

Info

Publication number
FR2135464A1
FR2135464A1 FR7116260A FR7116260A FR2135464A1 FR 2135464 A1 FR2135464 A1 FR 2135464A1 FR 7116260 A FR7116260 A FR 7116260A FR 7116260 A FR7116260 A FR 7116260A FR 2135464 A1 FR2135464 A1 FR 2135464A1
Authority
FR
France
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
FR7116260A
Other languages
French (fr)
Other versions
FR2135464B1 (en:Method
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.)
INST BUROVOI TEKHNIK
Original Assignee
INST BUROVOI TEKHNIK
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 INST BUROVOI TEKHNIK filed Critical INST BUROVOI TEKHNIK
Priority to FR717116260A priority Critical patent/FR2135464B1/fr
Publication of FR2135464A1 publication Critical patent/FR2135464A1/fr
Application granted granted Critical
Publication of FR2135464B1 publication Critical patent/FR2135464B1/fr
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
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/083—Roller bits with longitudinal axis, e.g. wobbling or nutating roller bit
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • E21B10/30—Longitudinal axis roller reamers, e.g. reamer stabilisers
    • 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
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR717116260A 1971-05-05 1971-05-05 Expired FR2135464B1 (en:Method)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR717116260A FR2135464B1 (en:Method) 1971-05-05 1971-05-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR717116260A FR2135464B1 (en:Method) 1971-05-05 1971-05-05

Publications (2)

Publication Number Publication Date
FR2135464A1 true FR2135464A1 (en:Method) 1972-12-22
FR2135464B1 FR2135464B1 (en:Method) 1973-05-11

Family

ID=9076483

Family Applications (1)

Application Number Title Priority Date Filing Date
FR717116260A Expired FR2135464B1 (en:Method) 1971-05-05 1971-05-05

Country Status (1)

Country Link
FR (1) FR2135464B1 (en:Method)

Also Published As

Publication number Publication date
FR2135464B1 (en:Method) 1973-05-11

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Legal Events

Date Code Title Description
ST Notification of lapse