GB663675A - Improvements in or relating to devices for scratching or brushing the walls of bores - Google Patents

Improvements in or relating to devices for scratching or brushing the walls of bores

Info

Publication number
GB663675A
GB663675A GB1837549A GB1837549A GB663675A GB 663675 A GB663675 A GB 663675A GB 1837549 A GB1837549 A GB 1837549A GB 1837549 A GB1837549 A GB 1837549A GB 663675 A GB663675 A GB 663675A
Authority
GB
United Kingdom
Prior art keywords
tines
tine
collar
degrees
secured
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
GB1837549A
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.)
JOSEPH CASLAKE JUNIOR
Original Assignee
JOSEPH CASLAKE JUNIOR
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 JOSEPH CASLAKE JUNIOR filed Critical JOSEPH CASLAKE JUNIOR
Priority to GB1837549A priority Critical patent/GB663675A/en
Publication of GB663675A publication Critical patent/GB663675A/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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/02—Scrapers specially adapted therefor

Landscapes

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

Abstract

663,675. Borehole scrapers. CASLAKE, J. March 13, 1950. [July 12, 1949] No. 18375/49. Class 85. To prepare the wall of a borehole prior to the cementing-in of the well casing, there is loosely positioned, between stops on said casing, a collar 1 that has secured thereto a circularly disposed series of stranded wire tines 2 which project outwardly from the collar to lie in a frusto-conical disposition thereto so that the outer free ends of the tines engage the wall of the bore. Each tine is disposed at an angle of between 30 and 70 degrees to the adjacent genetrix of the cone, the angle of which is between 20 and 60 degrees, and all the tines are inclined in the same direction. Two clips 5, 6 are secured on each tine to incline it in the correct direction. Specification 662,551 is referred to.
GB1837549A 1949-07-12 1949-07-12 Improvements in or relating to devices for scratching or brushing the walls of bores Expired GB663675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1837549A GB663675A (en) 1949-07-12 1949-07-12 Improvements in or relating to devices for scratching or brushing the walls of bores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1837549A GB663675A (en) 1949-07-12 1949-07-12 Improvements in or relating to devices for scratching or brushing the walls of bores

Publications (1)

Publication Number Publication Date
GB663675A true GB663675A (en) 1951-12-27

Family

ID=10111388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1837549A Expired GB663675A (en) 1949-07-12 1949-07-12 Improvements in or relating to devices for scratching or brushing the walls of bores

Country Status (1)

Country Link
GB (1) GB663675A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714424A (en) * 1951-06-26 1955-08-02 Atkinson Albert Edward Devices for cleaning the walls of bore holes
US3357494A (en) * 1964-12-07 1967-12-12 Sr Benson H Bolding Scratcher attachment for oil well casing
US4370895A (en) * 1979-01-25 1983-02-01 British Gas Corporation Friction drive wheels
CN106917601A (en) * 2015-12-26 2017-07-04 中国石油天然气股份有限公司 Wax scraper and method for washing and dewaxing heavy oil well

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714424A (en) * 1951-06-26 1955-08-02 Atkinson Albert Edward Devices for cleaning the walls of bore holes
US3357494A (en) * 1964-12-07 1967-12-12 Sr Benson H Bolding Scratcher attachment for oil well casing
US4370895A (en) * 1979-01-25 1983-02-01 British Gas Corporation Friction drive wheels
CN106917601A (en) * 2015-12-26 2017-07-04 中国石油天然气股份有限公司 Wax scraper and method for washing and dewaxing heavy oil well
CN106917601B (en) * 2015-12-26 2019-03-15 中国石油天然气股份有限公司 Wax scraper and method for washing and dewaxing heavy oil well

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