GB2430949B - A piling device - Google Patents

A piling device

Info

Publication number
GB2430949B
GB2430949B GB0520582A GB0520582A GB2430949B GB 2430949 B GB2430949 B GB 2430949B GB 0520582 A GB0520582 A GB 0520582A GB 0520582 A GB0520582 A GB 0520582A GB 2430949 B GB2430949 B GB 2430949B
Authority
GB
United Kingdom
Prior art keywords
piling device
piling
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 - Fee Related
Application number
GB0520582A
Other versions
GB2430949A (en
GB0520582D0 (en
Inventor
Alex Cartwright
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.)
Balfour Beatty PLC
Original Assignee
Balfour Beatty PLC
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 Balfour Beatty PLC filed Critical Balfour Beatty PLC
Priority to GB0520582A priority Critical patent/GB2430949B/en
Publication of GB0520582D0 publication Critical patent/GB0520582D0/en
Publication of GB2430949A publication Critical patent/GB2430949A/en
Application granted granted Critical
Publication of GB2430949B publication Critical patent/GB2430949B/en
Expired - Fee Related 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
    • 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

  • 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)
GB0520582A 2005-10-10 2005-10-10 A piling device Expired - Fee Related GB2430949B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0520582A GB2430949B (en) 2005-10-10 2005-10-10 A piling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0520582A GB2430949B (en) 2005-10-10 2005-10-10 A piling device

Publications (3)

Publication Number Publication Date
GB0520582D0 GB0520582D0 (en) 2005-11-16
GB2430949A GB2430949A (en) 2007-04-11
GB2430949B true GB2430949B (en) 2010-06-16

Family

ID=35430121

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0520582A Expired - Fee Related GB2430949B (en) 2005-10-10 2005-10-10 A piling device

Country Status (1)

Country Link
GB (1) GB2430949B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101220730B (en) * 2008-01-24 2010-12-08 煤炭科学研究总院西安研究院 Exterior lifting and pressing type ream bit for solum hole
CN108505946B (en) * 2018-04-13 2023-10-13 吉林大学 Variable diameter hot-melt drill bit for drilling snow layer
CN110748299B (en) * 2019-11-08 2021-01-05 西南石油大学 Compound broken super reducing drill bit of natural gas hydrate exploitation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6591922B1 (en) * 2001-08-13 2003-07-15 Cdx Gas, Llc Pantograph underreamer and method for forming a well bore cavity

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6591922B1 (en) * 2001-08-13 2003-07-15 Cdx Gas, Llc Pantograph underreamer and method for forming a well bore cavity

Also Published As

Publication number Publication date
GB2430949A (en) 2007-04-11
GB0520582D0 (en) 2005-11-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20201010