GB1332434A - Ground drilling rigs - Google Patents

Ground drilling rigs

Info

Publication number
GB1332434A
GB1332434A GB5380069A GB1332434DA GB1332434A GB 1332434 A GB1332434 A GB 1332434A GB 5380069 A GB5380069 A GB 5380069A GB 1332434D A GB1332434D A GB 1332434DA GB 1332434 A GB1332434 A GB 1332434A
Authority
GB
United Kingdom
Prior art keywords
rams
sleeve
kelly
accumulator
downward
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
GB5380069A
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.)
British Steel Piling Co Ltd
Original Assignee
British Steel Piling Co 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 British Steel Piling Co Ltd filed Critical British Steel Piling Co Ltd
Publication of GB1332434A publication Critical patent/GB1332434A/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/021—With a rotary table, i.e. a fixed rotary drive for a relatively advancing tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

1332434 Boring earth and rock BRITISH STEEL PILING CO Ltd 3 Nov 1970 [3 Nov 1969] 53800/69 Heading E1F Downward pressure is applied to a kelly 6 during drilling by double-acting rams 24 supplied with fluid from an accumulator and acting on an axially slidable sleeve 18 rotatable with the kelly. The rams are coupled with the sleeve by a non-rotatable collar 20. The sleeve is mounted for rotation in a carrier 16 pivoted at 10 to a vehicle 2 and movable by rams 12. A spring supported plate (30), Fig. 2 (not shown) buffers the sleeve from impacts of a flange 32 of the kelly, which is supported from a swivel 7. After the rams have completed their downward (contraction) stroke, drilling is stopped to release the kelly from frictional gripping by the sleeve, and the sleeve is raised relative to the kelly for the next downward stroke, by pumping fluid to extend the rams 24 against the accumulator pressure. The rams 24 have different pistons to enable a larger force to be exerted by the pump than by the accumulator.
GB5380069A 1969-11-03 1970-11-03 Ground drilling rigs Expired GB1332434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5380069 1969-11-03

Publications (1)

Publication Number Publication Date
GB1332434A true GB1332434A (en) 1973-10-03

Family

ID=10469022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5380069A Expired GB1332434A (en) 1969-11-03 1970-11-03 Ground drilling rigs

Country Status (2)

Country Link
US (1) US3674098A (en)
GB (1) GB1332434A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167105A (en) * 1984-10-03 1986-05-21 Lucas Brian Ronald Apparatus for use in drilling
US4753300A (en) * 1984-10-03 1988-06-28 Triten Corporation Hydraulic top drive for wells

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2100411C (en) * 1992-08-24 1998-07-14 Laszlo Gyongyosi Double rod cylinder feed system
EP1604323B1 (en) * 2003-03-10 2007-10-17 Atlas Copco Rock Drills Ab Improvements in drilling apparatus
US11585204B2 (en) * 2020-05-26 2023-02-21 Heath Poulson Crowding avoidance apparatus and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2188107A (en) * 1938-04-06 1940-01-23 George E Failing Supply Compan Rotary drilling rig
US2169678A (en) * 1938-04-06 1939-08-15 George E Failing Supply Compan Removable power device for earthdrilling machines
US2393603A (en) * 1943-02-01 1946-01-29 Beeth Clarence Donald Pulldown device
US3094312A (en) * 1959-06-17 1963-06-18 Economics Foundations Ltd Power assisted feed for a kelly bar
US3240278A (en) * 1962-07-20 1966-03-15 Koehring Co Drilling apparatus
US3525404A (en) * 1968-02-23 1970-08-25 Hughes Tool Co Rotary drilling rig with direct power drive and simplified controls

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167105A (en) * 1984-10-03 1986-05-21 Lucas Brian Ronald Apparatus for use in drilling
US4753300A (en) * 1984-10-03 1988-06-28 Triten Corporation Hydraulic top drive for wells

Also Published As

Publication number Publication date
US3674098A (en) 1972-07-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee