GB2458140B - Device for recovering detachable base from bore hole - Google Patents

Device for recovering detachable base from bore hole

Info

Publication number
GB2458140B
GB2458140B GB0804136.0A GB0804136A GB2458140B GB 2458140 B GB2458140 B GB 2458140B GB 0804136 A GB0804136 A GB 0804136A GB 2458140 B GB2458140 B GB 2458140B
Authority
GB
United Kingdom
Prior art keywords
recovering
bore hole
detachable base
detachable
base
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.)
Active
Application number
GB0804136.0A
Other versions
GB2458140A (en
GB0804136D0 (en
Inventor
Ronald Peter Payne
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 Skanska Ltd
Original Assignee
Cementation Foundations Skanska 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 Foundations Skanska Ltd filed Critical Cementation Foundations Skanska Ltd
Priority to GB1200441.2A priority Critical patent/GB2484431B/en
Priority to GB0804136.0A priority patent/GB2458140B/en
Publication of GB0804136D0 publication Critical patent/GB0804136D0/en
Publication of GB2458140A publication Critical patent/GB2458140A/en
Application granted granted Critical
Publication of GB2458140B publication Critical patent/GB2458140B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/12—Grappling tools, e.g. tongs or grabs
    • E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
    • 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
    • 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/007—Fishing for or freeing objects in boreholes or wells fishing tools with means for attaching comprising fusing or sticking
    • 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

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)
  • Marine Sciences & Fisheries (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
GB0804136.0A 2008-03-05 2008-03-05 Device for recovering detachable base from bore hole Active GB2458140B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1200441.2A GB2484431B (en) 2008-03-05 2008-03-05 Device for recovering detachable base from bore hole
GB0804136.0A GB2458140B (en) 2008-03-05 2008-03-05 Device for recovering detachable base from bore hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0804136.0A GB2458140B (en) 2008-03-05 2008-03-05 Device for recovering detachable base from bore hole

Publications (3)

Publication Number Publication Date
GB0804136D0 GB0804136D0 (en) 2008-04-09
GB2458140A GB2458140A (en) 2009-09-09
GB2458140B true GB2458140B (en) 2012-02-22

Family

ID=48749623

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1200441.2A Active GB2484431B (en) 2008-03-05 2008-03-05 Device for recovering detachable base from bore hole
GB0804136.0A Active GB2458140B (en) 2008-03-05 2008-03-05 Device for recovering detachable base from bore hole

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1200441.2A Active GB2484431B (en) 2008-03-05 2008-03-05 Device for recovering detachable base from bore hole

Country Status (1)

Country Link
GB (2) GB2484431B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1563641A (en) * 1923-02-07 1925-12-01 Standard Oil Co Fishing tool for underreamer bits
US2697586A (en) * 1949-11-26 1954-12-21 Dolen O Talley Earth underreamer
US2887161A (en) * 1954-10-20 1959-05-19 Wash Overshot And Spear Engine Combined fishing tool and reaming apparatus
GB2434387A (en) * 2006-01-23 2007-07-25 Cementation Found Skanska Ltd An earth boring tool for enlarging a portion of an underground shaft

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2372056B (en) * 2001-02-08 2004-07-07 Cementation Found Skanska Ltd Improvements relating to piles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1563641A (en) * 1923-02-07 1925-12-01 Standard Oil Co Fishing tool for underreamer bits
US2697586A (en) * 1949-11-26 1954-12-21 Dolen O Talley Earth underreamer
US2887161A (en) * 1954-10-20 1959-05-19 Wash Overshot And Spear Engine Combined fishing tool and reaming apparatus
GB2434387A (en) * 2006-01-23 2007-07-25 Cementation Found Skanska Ltd An earth boring tool for enlarging a portion of an underground shaft

Also Published As

Publication number Publication date
GB2484431A (en) 2012-04-11
GB201200441D0 (en) 2012-02-22
GB2484431B (en) 2012-07-04
GB2458140A (en) 2009-09-09
GB0804136D0 (en) 2008-04-09

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