GB811380A - 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
GB811380A
GB811380A GB2312856A GB2312856A GB811380A GB 811380 A GB811380 A GB 811380A GB 2312856 A GB2312856 A GB 2312856A GB 2312856 A GB2312856 A GB 2312856A GB 811380 A GB811380 A GB 811380A
Authority
GB
United Kingdom
Prior art keywords
scratching
brushing
bores
relating
walls
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
GB2312856A
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 GB2312856A priority Critical patent/GB811380A/en
Publication of GB811380A publication Critical patent/GB811380A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

811,380. Well scratchers. CASLAKE, J. July 4, 1957 [July 26, 1956], No. 23128/56. Class 85 A well scratcher comprises an annular collar having two series of holes 11, 12 which are staggered relative to one another and provided with tines 15, 16, 19 as shown. The tines are held in position by a steel band 17 which is spot welded at 20 to the collar and bears against the transverse portions 19 of the tines
GB2312856A 1956-07-26 1956-07-26 Improvements in or relating to devices for scratching or brushing the walls of bores Expired GB811380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2312856A GB811380A (en) 1956-07-26 1956-07-26 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
GB2312856A GB811380A (en) 1956-07-26 1956-07-26 Improvements in or relating to devices for scratching or brushing the walls of bores

Publications (1)

Publication Number Publication Date
GB811380A true GB811380A (en) 1959-04-02

Family

ID=10190582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2312856A Expired GB811380A (en) 1956-07-26 1956-07-26 Improvements in or relating to devices for scratching or brushing the walls of bores

Country Status (1)

Country Link
GB (1) GB811380A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201176A (en) * 1987-02-19 1988-08-24 Mueller Kurt Pipe centraliser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201176A (en) * 1987-02-19 1988-08-24 Mueller Kurt Pipe centraliser

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