FR2277192A1 - Outil elargisseur de forage - Google Patents

Outil elargisseur de forage

Info

Publication number
FR2277192A1
FR2277192A1 FR7423079A FR7423079A FR2277192A1 FR 2277192 A1 FR2277192 A1 FR 2277192A1 FR 7423079 A FR7423079 A FR 7423079A FR 7423079 A FR7423079 A FR 7423079A FR 2277192 A1 FR2277192 A1 FR 2277192A1
Authority
FR
France
Prior art keywords
cylindrical body
borehole
centrifugal force
body housing
fixed
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
FR7423079A
Other languages
English (en)
French (fr)
Other versions
FR2277192B1 (OSRAM
Inventor
Henri Ainie
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.)
HERLICQ ET FILS ETS ALFRED
Original Assignee
HERLICQ ET FILS ETS ALFRED
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 HERLICQ ET FILS ETS ALFRED filed Critical HERLICQ ET FILS ETS ALFRED
Priority to FR7423079A priority Critical patent/FR2277192A1/fr
Publication of FR2277192A1 publication Critical patent/FR2277192A1/fr
Application granted granted Critical
Publication of FR2277192B1 publication Critical patent/FR2277192B1/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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools

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)
FR7423079A 1974-07-03 1974-07-03 Outil elargisseur de forage Granted FR2277192A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7423079A FR2277192A1 (fr) 1974-07-03 1974-07-03 Outil elargisseur de forage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7423079A FR2277192A1 (fr) 1974-07-03 1974-07-03 Outil elargisseur de forage

Publications (2)

Publication Number Publication Date
FR2277192A1 true FR2277192A1 (fr) 1976-01-30
FR2277192B1 FR2277192B1 (OSRAM) 1976-12-24

Family

ID=9140814

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7423079A Granted FR2277192A1 (fr) 1974-07-03 1974-07-03 Outil elargisseur de forage

Country Status (1)

Country Link
FR (1) FR2277192A1 (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105064922A (zh) * 2015-08-25 2015-11-18 中铁十一局集团第四工程有限公司 一种用于回旋钻的扩孔钻头
CN105804061A (zh) * 2016-03-15 2016-07-27 安徽省城建设计研究总院有限公司 一种旋挖桩基底部扩孔的装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105064922A (zh) * 2015-08-25 2015-11-18 中铁十一局集团第四工程有限公司 一种用于回旋钻的扩孔钻头
CN105064922B (zh) * 2015-08-25 2018-02-06 中铁十一局集团第四工程有限公司 一种用于回旋钻的扩孔钻头
CN105804061A (zh) * 2016-03-15 2016-07-27 安徽省城建设计研究总院有限公司 一种旋挖桩基底部扩孔的装置
CN105804061B (zh) * 2016-03-15 2017-07-14 安徽省城建设计研究总院有限公司 一种旋挖桩基底部扩孔的装置

Also Published As

Publication number Publication date
FR2277192B1 (OSRAM) 1976-12-24

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