FR2272254A1 - Grease-lubricated three-arm drilling tool - in which lubricant pressure always exceeds pressure of drilling mud - Google Patents

Grease-lubricated three-arm drilling tool - in which lubricant pressure always exceeds pressure of drilling mud

Info

Publication number
FR2272254A1
FR2272254A1 FR7417482A FR7417482A FR2272254A1 FR 2272254 A1 FR2272254 A1 FR 2272254A1 FR 7417482 A FR7417482 A FR 7417482A FR 7417482 A FR7417482 A FR 7417482A FR 2272254 A1 FR2272254 A1 FR 2272254A1
Authority
FR
France
Prior art keywords
grease
mud
pressure
drilling
lubricated
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
FR7417482A
Other languages
English (en)
French (fr)
Other versions
FR2272254B1 (enExample
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.)
Creusot Loire SA
Original Assignee
Creusot Loire 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 Creusot Loire SA filed Critical Creusot Loire SA
Priority to FR7417482A priority Critical patent/FR2272254A1/fr
Publication of FR2272254A1 publication Critical patent/FR2272254A1/fr
Application granted granted Critical
Publication of FR2272254B1 publication Critical patent/FR2272254B1/fr
Granted 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
    • E21B10/246—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details with pumping means for feeding lubricant
    • 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

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)
  • Earth Drilling (AREA)
FR7417482A 1974-05-20 1974-05-20 Grease-lubricated three-arm drilling tool - in which lubricant pressure always exceeds pressure of drilling mud Granted FR2272254A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7417482A FR2272254A1 (en) 1974-05-20 1974-05-20 Grease-lubricated three-arm drilling tool - in which lubricant pressure always exceeds pressure of drilling mud

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7417482A FR2272254A1 (en) 1974-05-20 1974-05-20 Grease-lubricated three-arm drilling tool - in which lubricant pressure always exceeds pressure of drilling mud

Publications (2)

Publication Number Publication Date
FR2272254A1 true FR2272254A1 (en) 1975-12-19
FR2272254B1 FR2272254B1 (enExample) 1978-06-02

Family

ID=9139062

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7417482A Granted FR2272254A1 (en) 1974-05-20 1974-05-20 Grease-lubricated three-arm drilling tool - in which lubricant pressure always exceeds pressure of drilling mud

Country Status (1)

Country Link
FR (1) FR2272254A1 (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386667A (en) * 1980-05-01 1983-06-07 Hughes Tool Company Plunger lubricant compensator for an earth boring drill bit
EP2791454A4 (en) * 2011-12-14 2016-01-27 Halliburton Energy Services Inc FLOATING CAPS PRESSURE EQUALIZATION IN OIL-OPERATING THRUPS
US9359822B2 (en) 2011-12-14 2016-06-07 Halliburton Energy Services, Inc. Floating plug pressure equalization in oilfield drill bits

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4386667A (en) * 1980-05-01 1983-06-07 Hughes Tool Company Plunger lubricant compensator for an earth boring drill bit
EP2791454A4 (en) * 2011-12-14 2016-01-27 Halliburton Energy Services Inc FLOATING CAPS PRESSURE EQUALIZATION IN OIL-OPERATING THRUPS
US9359822B2 (en) 2011-12-14 2016-06-07 Halliburton Energy Services, Inc. Floating plug pressure equalization in oilfield drill bits

Also Published As

Publication number Publication date
FR2272254B1 (enExample) 1978-06-02

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Legal Events

Date Code Title Description
ST Notification of lapse