GB1249143A - Improvements in or relating to a reamer bit - Google Patents

Improvements in or relating to a reamer bit

Info

Publication number
GB1249143A
GB1249143A GB59372/68A GB5937268A GB1249143A GB 1249143 A GB1249143 A GB 1249143A GB 59372/68 A GB59372/68 A GB 59372/68A GB 5937268 A GB5937268 A GB 5937268A GB 1249143 A GB1249143 A GB 1249143A
Authority
GB
United Kingdom
Prior art keywords
elements
reamer bit
relating
bit
cementation
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
GB59372/68A
Inventor
Lewis Stansfield
Kenneth John Vine
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.)
Cementation Co Ltd
Original Assignee
Cementation Co Ltd
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 Cementation Co Ltd filed Critical Cementation Co Ltd
Priority to GB59372/68A priority Critical patent/GB1249143A/en
Priority to IE1192/69A priority patent/IE33300B1/en
Priority to ES372280A priority patent/ES372280A1/en
Priority to DE19691955623 priority patent/DE1955623A1/en
Publication of GB1249143A publication Critical patent/GB1249143A/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

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)

Abstract

1,249,143. Boring earth and rock. CEMENTATION CO. Ltd. 26 Aug., 1969 [13 Dec., 1968], No. 59372/68. Heading E1F. A reamer bit comprises a body 1 connected to a drill rod 3 and resilient elements 4 bendable to lie along the body. The bit is inserted in a borehole and rotated so that the elements 4 resiliently engage the walls and produce a local enlarging Figs. 2-4 (not shown). Pressure fluid, which may be air, is supplied to orifices 9 in a tube 6 which may be attached to the side of the body 1 or may extend within it. The elements 4 are formed from wire rope, spring steel or nylon, and may be arranged in a spiral.
GB59372/68A 1968-12-13 1968-12-13 Improvements in or relating to a reamer bit Expired GB1249143A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB59372/68A GB1249143A (en) 1968-12-13 1968-12-13 Improvements in or relating to a reamer bit
IE1192/69A IE33300B1 (en) 1968-12-13 1969-08-21 Reamer bit
ES372280A ES372280A1 (en) 1968-12-13 1969-09-25 Improvements in or relating to a reamer bit
DE19691955623 DE1955623A1 (en) 1968-12-13 1969-10-31 Regrooving or extension drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB59372/68A GB1249143A (en) 1968-12-13 1968-12-13 Improvements in or relating to a reamer bit

Publications (1)

Publication Number Publication Date
GB1249143A true GB1249143A (en) 1971-10-06

Family

ID=10483637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB59372/68A Expired GB1249143A (en) 1968-12-13 1968-12-13 Improvements in or relating to a reamer bit

Country Status (4)

Country Link
DE (1) DE1955623A1 (en)
ES (1) ES372280A1 (en)
GB (1) GB1249143A (en)
IE (1) IE33300B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113445926A (en) * 2021-07-07 2021-09-28 广东电网能源发展有限公司 Rock breaking drill bit device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10017894A1 (en) * 2000-04-11 2001-10-25 Stump Spezialtiefbau Gmbh Method and device for producing undercut cavities, in particular for producing support members and nails

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113445926A (en) * 2021-07-07 2021-09-28 广东电网能源发展有限公司 Rock breaking drill bit device

Also Published As

Publication number Publication date
ES372280A1 (en) 1972-02-16
IE33300L (en) 1970-06-13
IE33300B1 (en) 1974-05-15
DE1955623A1 (en) 1970-07-02

Similar Documents

Publication Publication Date Title
GB1244274A (en) Improvements in or relating to subsea production satellites
GB1086536A (en) Improvements in or relating to the drilling of deep boreholes in the earth
GB1367962A (en) Kelly bar assembly
GB1276249A (en) Improvements in or relating to percussion drill bits
GB1418984A (en) Percussion bits
GB1212915A (en) Apparatus for bore-hole drilling
GB1180017A (en) Well Drill String Stabilizer.
GB1366495A (en) Eccentric drill tool
GB1142741A (en) Earthboring drill bits
GB1062671A (en) Rock drill reamer
GB1293395A (en) Impact devices
GB1250146A (en)
GB1362556A (en) Drilling apparatus
GB966286A (en) Drilling apparatus
GB963670A (en) Improvements in or relating to deep drills
GB1215105A (en) Improvements relating to the drilling of wells
GB1068638A (en) Drilling equipment
GB1249143A (en) Improvements in or relating to a reamer bit
GB1119043A (en) Percussion drill
US2956781A (en) Deflecting tool
GB1178643A (en) Method of Drilling Holes in Bedrock Covered with Topsoil or Loose Rock
GB1019027A (en) Improvements in or relating to drill bits for rotary percussion drilling
GB1181428A (en) Improvements in or relating to Percussive Drill Bits
GB1266306A (en)
GB1231556A (en)