GB473112A - Improvements in and relating to underreamers and oversize hole drilling tools for drilling boreholes such as wells - Google Patents

Improvements in and relating to underreamers and oversize hole drilling tools for drilling boreholes such as wells

Info

Publication number
GB473112A
GB473112A GB3007136A GB3007136A GB473112A GB 473112 A GB473112 A GB 473112A GB 3007136 A GB3007136 A GB 3007136A GB 3007136 A GB3007136 A GB 3007136A GB 473112 A GB473112 A GB 473112A
Authority
GB
United Kingdom
Prior art keywords
cutter
teeth
casing
bearing
shank
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
GB3007136A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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
Priority to NL44075D priority Critical patent/NL44075C/xx
Application filed by Individual filed Critical Individual
Priority to GB3007136A priority patent/GB473112A/en
Priority to DEZ23537D priority patent/DE707371C/de
Publication of GB473112A publication Critical patent/GB473112A/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
    • E21B10/08—Roller bits
    • E21B10/083—Roller bits with longitudinal axis, e.g. wobbling or nutating roller bit

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)
  • Auxiliary Devices For Machine Tools (AREA)
GB3007136A 1936-11-04 1936-11-04 Improvements in and relating to underreamers and oversize hole drilling tools for drilling boreholes such as wells Expired GB473112A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL44075D NL44075C (enrdf_load_stackoverflow) 1936-11-04
GB3007136A GB473112A (en) 1936-11-04 1936-11-04 Improvements in and relating to underreamers and oversize hole drilling tools for drilling boreholes such as wells
DEZ23537D DE707371C (de) 1936-11-04 1936-11-14 Drehbohrmeissel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3007136A GB473112A (en) 1936-11-04 1936-11-04 Improvements in and relating to underreamers and oversize hole drilling tools for drilling boreholes such as wells

Publications (1)

Publication Number Publication Date
GB473112A true GB473112A (en) 1937-10-06

Family

ID=10301801

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3007136A Expired GB473112A (en) 1936-11-04 1936-11-04 Improvements in and relating to underreamers and oversize hole drilling tools for drilling boreholes such as wells

Country Status (2)

Country Link
GB (1) GB473112A (enrdf_load_stackoverflow)
NL (1) NL44075C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113732365A (zh) * 2020-05-27 2021-12-03 波音公司 用于由未对准孔形成对准孔的设备、系统和方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113732365A (zh) * 2020-05-27 2021-12-03 波音公司 用于由未对准孔形成对准孔的设备、系统和方法

Also Published As

Publication number Publication date
NL44075C (enrdf_load_stackoverflow) 1938-04-15

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