FR2195750B1 - - Google Patents

Info

Publication number
FR2195750B1
FR2195750B1 FR7228967A FR7228967A FR2195750B1 FR 2195750 B1 FR2195750 B1 FR 2195750B1 FR 7228967 A FR7228967 A FR 7228967A FR 7228967 A FR7228967 A FR 7228967A FR 2195750 B1 FR2195750 B1 FR 2195750B1
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.)
Expired
Application number
FR7228967A
Other languages
French (fr)
Other versions
FR2195750A1 (enrdf_load_stackoverflow
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.)
MO TRUDOVO
Original Assignee
MO TRUDOVO
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 MO TRUDOVO filed Critical MO TRUDOVO
Priority to FR7228967A priority Critical patent/FR2195750B1/fr
Publication of FR2195750A1 publication Critical patent/FR2195750A1/fr
Application granted granted Critical
Publication of FR2195750B1 publication Critical patent/FR2195750B1/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
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by 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
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/10—Roller bits with roller axle supported at both ends
    • 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
    • E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
    • 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
    • E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams

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)
FR7228967A 1972-08-10 1972-08-10 Expired FR2195750B1 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7228967A FR2195750B1 (enrdf_load_stackoverflow) 1972-08-10 1972-08-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7228967A FR2195750B1 (enrdf_load_stackoverflow) 1972-08-10 1972-08-10

Publications (2)

Publication Number Publication Date
FR2195750A1 FR2195750A1 (enrdf_load_stackoverflow) 1974-03-08
FR2195750B1 true FR2195750B1 (enrdf_load_stackoverflow) 1976-05-21

Family

ID=9103152

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7228967A Expired FR2195750B1 (enrdf_load_stackoverflow) 1972-08-10 1972-08-10

Country Status (1)

Country Link
FR (1) FR2195750B1 (enrdf_load_stackoverflow)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017937A (en) * 1958-11-10 1962-01-23 Phillips Petroleum Co Lubricator for earth boring bit
US3220496A (en) * 1962-10-29 1965-11-30 Exxon Production Research Co Oilfield lubricating sub
US3529683A (en) * 1969-07-08 1970-09-22 Gordon E Mays Drill bit lubricator

Also Published As

Publication number Publication date
FR2195750A1 (enrdf_load_stackoverflow) 1974-03-08

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Legal Events

Date Code Title Description
ST Notification of lapse