GB1111256A - Method and device for widening a drill-hole in rock - Google Patents

Method and device for widening a drill-hole in rock

Info

Publication number
GB1111256A
GB1111256A GB37727/66A GB3772766A GB1111256A GB 1111256 A GB1111256 A GB 1111256A GB 37727/66 A GB37727/66 A GB 37727/66A GB 3772766 A GB3772766 A GB 3772766A GB 1111256 A GB1111256 A GB 1111256A
Authority
GB
United Kingdom
Prior art keywords
bore
widening
drill
rock
hole
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
GB37727/66A
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.)
Beteiligungs und Patentverwaltungs GmbH
Original Assignee
Beteiligungs und Patentverwaltungs GmbH
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 Beteiligungs und Patentverwaltungs GmbH filed Critical Beteiligungs und Patentverwaltungs GmbH
Publication of GB1111256A publication Critical patent/GB1111256A/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
    • 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
    • E21B10/325—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 the cutter being shifted by a spring mechanism
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/11—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
    • E21D9/112—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines by means of one single rotary head or of concentric rotary heads
    • E21D9/115—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines by means of one single rotary head or of concentric rotary heads with cutting tools mounted pivotably or slidable on the head

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)

Abstract

1,111,256. Bore hole widening drills. BETEILIGUNGS-UND PATENTVERWALTUNGS G.m.b.H. 23 Aug., 1966 [24 Aug., 1965], No. 37727/66. Heading E1F. Widening of a pilot bore in rook is accomplished by roller cutters of a drill notching, preferably spirally, the wall of the bore before further rolling cutters act on the exposal face of the rock radially outwards of the pilot bore to form a final bore of the required diameter.
GB37727/66A 1965-08-24 1966-08-23 Method and device for widening a drill-hole in rock Expired GB1111256A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0083403 1965-08-24

Publications (1)

Publication Number Publication Date
GB1111256A true GB1111256A (en) 1968-04-24

Family

ID=6981954

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37727/66A Expired GB1111256A (en) 1965-08-24 1966-08-23 Method and device for widening a drill-hole in rock

Country Status (3)

Country Link
AT (1) AT264423B (en)
CH (1) CH439185A (en)
GB (1) GB1111256A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264132A (en) * 1992-02-17 1993-08-18 Kverneland Klepp As A hole opener device for the top hole section of oil/gas wells
GB2412388A (en) * 2004-03-27 2005-09-28 Schlumberger Holdings Bottom hole assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264132A (en) * 1992-02-17 1993-08-18 Kverneland Klepp As A hole opener device for the top hole section of oil/gas wells
US5337843A (en) * 1992-02-17 1994-08-16 Kverneland Klepp As Hole opener for the top hole section of oil/gas wells
GB2264132B (en) * 1992-02-17 1995-10-11 Kverneland Klepp As A hole opener device for the top hole section of oil/gas wells
GB2412388A (en) * 2004-03-27 2005-09-28 Schlumberger Holdings Bottom hole assembly
GB2412388B (en) * 2004-03-27 2006-09-27 Schlumberger Holdings Bottom hole assembly
US7316277B2 (en) 2004-03-27 2008-01-08 Schlumberger Technology Corporation Bottom hole assembly

Also Published As

Publication number Publication date
CH439185A (en) 1967-07-15
AT264423B (en) 1968-08-26

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