EP0233038A2 - Bohrvorrichtung im Bohrloch - Google Patents

Bohrvorrichtung im Bohrloch Download PDF

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Publication number
EP0233038A2
EP0233038A2 EP87300928A EP87300928A EP0233038A2 EP 0233038 A2 EP0233038 A2 EP 0233038A2 EP 87300928 A EP87300928 A EP 87300928A EP 87300928 A EP87300928 A EP 87300928A EP 0233038 A2 EP0233038 A2 EP 0233038A2
Authority
EP
European Patent Office
Prior art keywords
drill
hammer
drill string
hole
percussion
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.)
Withdrawn
Application number
EP87300928A
Other languages
English (en)
French (fr)
Other versions
EP0233038A3 (de
Inventor
David William Paul
David Stanley Williams
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.)
Boart International Ltd
Original Assignee
Boart International 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 Boart International Ltd filed Critical Boart International Ltd
Publication of EP0233038A2 publication Critical patent/EP0233038A2/de
Publication of EP0233038A3 publication Critical patent/EP0233038A3/de
Withdrawn legal-status Critical Current

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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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1035—Wear protectors; Centralising devices, e.g. stabilisers for plural rods, pipes or lines, e.g. for control lines
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/18—Pipes provided with plural fluid passages
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
    • 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/005—Below-ground automatic control systems

Definitions

  • This invention relates to a down-the-hole drill.
  • the drilling machine In conventional down-the-hole drilling the drilling machine is pneumatically operated with compressed air supplying the energy for percussion as well as acting as the flushing fluid for cuttings formed during drilling.
  • the percussion device is at the bottom of a drill string which conveys compressed air and which is rotated on surface.
  • An apparatus has already been proposed which has a drilling head comprising independently powered percussive and rotation devices, the head being attached to a tubular drill string and power for at least one of the devices being fed along umbilicals externally of or within the drill string. It was proposed that a hydraulic motor drive a shaft which has splines engaged with the chuck of the percussion motor to cause the chuck to rotate and hence cause the drilling bit to rotate. The problem was that the percussion apparatus had to be arranged concentrically around the shaft which drives the chuck which is virtually impossible in the space available in the average diameter drill hole.
  • a down-the-hole drill comprises a drill string and percussion and rotation devices at the lower end of the drill string characterised in that the percussion device is a hammer to which a drill bit is chucked and having an upwardly extending shank, and the rotation device is a rotation motor in the lower end of the drill string and in driving engagement with the shank.
  • the hammer and the rotation motor are preferably hydraulically powered and hydraulic fluid passes to them through a circuit allowing free flow to hammer and flow to the rotation device only when a predetermined condition has been attained.
  • valve If, as is usual, reciprocation of the hammer is controlled by a shuttle valve, the valve is and operates in line with the hammer axis.
  • the invention also provides that hydraulic fluid be passed down to the lower end of the drill string and up the drill string along hoses accommodated in grooves down the sides of the drill string.
  • Figure 1 shows the lower end 10 of a drill which carries a pair of hoses 11 in rubber lined grooves down its side - see Figure 2. In the centre there is a pipe 12.
  • the hoses 11 carry hydraulic fluid and the pipe 12 carries compressed air for flushing.
  • the end 10 connects with a tubular section 14 which carries a low pressure accumulator 15 on the return side of the hydraulic system and a rotary hydraulic motor 16.
  • the shaft 17 of the motor 16 is attached to a splined sleeve 18 which is in driving engagement with an extension 19 on a shank 20 of a percussion hammer.
  • the sleeve 18 and the extension 19 form a liquid swivel for connecting annular grooves 21 and 22 to feed bores 23 and 24 for the hammer.
  • the hammer has a piston 25 which is caused to reciprocate in a conventional manner in conjunction with a shuttle valve 26 as described in the above mentioned patents.
  • the shuttle valve 26 is in line with the piston 25 and not beside it or extending transversely to it is with the above mentioned patents.
  • the piston 25 and the shuttle valve 26 are contained in a tubular housing 27 which rotates with a seal 28 against the section 14.
  • the housing 27 also carries a chuck 28 to which is chucked a button bit 29 in the usual manner.
  • Ducts (not shown) bypass the various parts to pass air down the centre of the button bit to the bottom of the hole being drilled.
  • the housing 27 also contains a high pressure accumulator 30.
  • the hoses 11 connect with the various hydraulic components along bores in the thicknesses of the sections and so on for hydraulic fluid to be fed to and returned from those components. Many of these connections are not shown in Figure 1 as a matter of convenience.
  • the full hydraulic circuit is shown in Figure 3 in which components described above have the same reference numbers as they were given above.
  • a hydraulic pump 31 on surface draws hydraulic fluid from a tank 32 and pumps it to a control valve 33.
  • a hose 11 feeds the fluid down the drill hole.
  • Hydraulic fluid returns via the low pressure accumulator 15 and a hose 11 to tank 32 after passing through a filter 35.
  • the feed passes to a pressure reducing flow control valve 34 controlling the hydraulic motor 16.
  • the valve 34 ensures that the hammer is not starved of feed by the motor 16.
  • a valve (not shown) at the surface admits compressed air to the pipe 12 while the valve 33 admits hydraulic fluid to the hammer and motor.
  • the valve 33 admits hydraulic fluid to the hammer and motor.
  • the rate of flushing is controlled by controlling the flow of compressed air while the drilling rate is controlled by operating the valve 33.

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)
EP87300928A 1986-02-03 1987-02-03 Bohrvorrichtung im Bohrloch Withdrawn EP0233038A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA860768 1986-02-03
ZA86768 1986-02-03

Publications (2)

Publication Number Publication Date
EP0233038A2 true EP0233038A2 (de) 1987-08-19
EP0233038A3 EP0233038A3 (de) 1988-11-23

Family

ID=25578264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87300928A Withdrawn EP0233038A3 (de) 1986-02-03 1987-02-03 Bohrvorrichtung im Bohrloch

Country Status (4)

Country Link
EP (1) EP0233038A3 (de)
AU (1) AU581800B2 (de)
FI (1) FI870444A (de)
NO (1) NO870405L (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989008769A1 (en) * 1988-03-15 1989-09-21 Rudolf Hausherr & Söhne Gmbh & Co Kg Drill
EP0350581A2 (de) * 1988-07-15 1990-01-17 Paul Schmidt Langkörper
FR2663978A1 (fr) * 1990-06-29 1992-01-03 Elf Aquitaine Tube de production avec ligne hydraulique integree.
US6308779B1 (en) * 1999-09-16 2001-10-30 Mcneilly A. Keith Hydraulically driven fishing jars
WO2010033041A1 (en) 2008-09-17 2010-03-25 Jfk Equipment Limited Drilling apparatus
US8893827B2 (en) 2008-09-17 2014-11-25 Jfk Equipment Limited Drilling apparatus
GB2520301A (en) * 2013-11-15 2015-05-20 Mincon Internat Filter drill rod adapted for cleaning
CN105625937A (zh) * 2016-03-08 2016-06-01 唐山玉联机电有限公司 一种页岩气专用冲击式液动锤钻井设备
WO2016109868A1 (en) * 2015-01-08 2016-07-14 Strada Design Limited Multi fluid drilling system
WO2020039393A1 (en) * 2018-08-23 2020-02-27 Buehrmann Rudolph A percussion mechanism

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2430519A1 (de) * 1973-06-25 1975-01-23 Joy Mfg Canada Steinbrechvorrichtung
US3978931A (en) * 1975-10-30 1976-09-07 Boris Vasilievich Sudnishnikov Air-operated drilling machine or rotary-percussive action
DE2733199A1 (de) * 1977-07-22 1979-02-01 Adolf Rotter Bohrvorrichtung zum einbringen von tiefbohrungen in erdreich, gestein u.dgl.
DE3011263A1 (de) * 1979-03-30 1980-10-09 Goete Ingemar Hansson Maschine zum bohren in gesteinen
DE3143943A1 (de) * 1981-10-29 1983-05-11 Christian Dipl.-Ing. 8900 Augsburg Strobel Rammbohrgeraet
GB2142364A (en) * 1983-06-30 1985-01-16 Chevron Res Percussion actuated core sampler
DE3416514A1 (de) * 1984-05-04 1985-11-07 Otto 2000 Hamburg Frühling Rohrvortriebsmaschine nichtbegehbaren durchmessers
DE3416513A1 (de) * 1984-05-04 1985-11-07 Otto 2000 Hamburg Frühling Vortriebsmaschine fuer nichtbegehbare rohrleitungen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2430519A1 (de) * 1973-06-25 1975-01-23 Joy Mfg Canada Steinbrechvorrichtung
US3978931A (en) * 1975-10-30 1976-09-07 Boris Vasilievich Sudnishnikov Air-operated drilling machine or rotary-percussive action
DE2733199A1 (de) * 1977-07-22 1979-02-01 Adolf Rotter Bohrvorrichtung zum einbringen von tiefbohrungen in erdreich, gestein u.dgl.
DE3011263A1 (de) * 1979-03-30 1980-10-09 Goete Ingemar Hansson Maschine zum bohren in gesteinen
DE3143943A1 (de) * 1981-10-29 1983-05-11 Christian Dipl.-Ing. 8900 Augsburg Strobel Rammbohrgeraet
GB2142364A (en) * 1983-06-30 1985-01-16 Chevron Res Percussion actuated core sampler
DE3416514A1 (de) * 1984-05-04 1985-11-07 Otto 2000 Hamburg Frühling Rohrvortriebsmaschine nichtbegehbaren durchmessers
DE3416513A1 (de) * 1984-05-04 1985-11-07 Otto 2000 Hamburg Frühling Vortriebsmaschine fuer nichtbegehbare rohrleitungen

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989008769A1 (en) * 1988-03-15 1989-09-21 Rudolf Hausherr & Söhne Gmbh & Co Kg Drill
US5092411A (en) * 1988-03-15 1992-03-03 Rudolf Hausherr & Sohne Gmbh & Co. Kg Drilling apparatus
EP0350581A2 (de) * 1988-07-15 1990-01-17 Paul Schmidt Langkörper
EP0350581A3 (de) * 1988-07-15 1991-01-30 Paul Schmidt Langkörper
FR2663978A1 (fr) * 1990-06-29 1992-01-03 Elf Aquitaine Tube de production avec ligne hydraulique integree.
WO1992000437A1 (fr) * 1990-06-29 1992-01-09 Societe Nationale Elf Aquitaine (Production) Tube de production avec ligne hydraulique integree
US5217071A (en) * 1990-06-29 1993-06-08 Societe Nationale Elf Aquitaine (Production) Production tube with integrated hydraulic line
US6308779B1 (en) * 1999-09-16 2001-10-30 Mcneilly A. Keith Hydraulically driven fishing jars
RU2524725C2 (ru) * 2008-09-17 2014-08-10 ДжейЭфКей Эквипмент Лимитед Бурильная установка
EP2337919A4 (de) * 2008-09-17 2016-07-27 Jfk Equipment Ltd Bohrgerät
WO2010033041A1 (en) 2008-09-17 2010-03-25 Jfk Equipment Limited Drilling apparatus
US8887835B2 (en) 2008-09-17 2014-11-18 Jfk Equipment Limited Drilling apparatus
US8893827B2 (en) 2008-09-17 2014-11-25 Jfk Equipment Limited Drilling apparatus
CN102216552A (zh) * 2008-09-17 2011-10-12 Jfk设备有限公司 钻孔装置
GB2520301A (en) * 2013-11-15 2015-05-20 Mincon Internat Filter drill rod adapted for cleaning
WO2015071381A3 (en) * 2013-11-15 2015-12-17 Mincon International Ltd. Filter drill rod adapted for cleaning
CN106062299A (zh) * 2015-01-08 2016-10-26 斯特拉达设计有限公司 多流体钻井系统
WO2016109868A1 (en) * 2015-01-08 2016-07-14 Strada Design Limited Multi fluid drilling system
EP3242990A4 (de) * 2015-01-08 2018-11-21 Strada Design Limited Bohrsystem mit mehreren flüssigkeiten
RU2698341C2 (ru) * 2015-01-08 2019-08-26 Страда Дизайн Лимитед Система бурения c несколькими текучими средами
US10544625B2 (en) 2015-01-08 2020-01-28 Strada Design Limited Multi fluid drilling system
CN105625937A (zh) * 2016-03-08 2016-06-01 唐山玉联机电有限公司 一种页岩气专用冲击式液动锤钻井设备
WO2020039393A1 (en) * 2018-08-23 2020-02-27 Buehrmann Rudolph A percussion mechanism

Also Published As

Publication number Publication date
AU581800B2 (en) 1989-03-02
NO870405D0 (no) 1987-02-02
EP0233038A3 (de) 1988-11-23
FI870444A0 (fi) 1987-02-02
AU6807387A (en) 1987-08-06
NO870405L (no) 1987-08-04
FI870444A (fi) 1987-08-04

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Inventor name: WILLIAMS, DAVID STANLEY