EP1900901A1 - Flexibles Rohr für eine Drehschlagbohrvorrichtung - Google Patents

Flexibles Rohr für eine Drehschlagbohrvorrichtung Download PDF

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Publication number
EP1900901A1
EP1900901A1 EP07356108A EP07356108A EP1900901A1 EP 1900901 A1 EP1900901 A1 EP 1900901A1 EP 07356108 A EP07356108 A EP 07356108A EP 07356108 A EP07356108 A EP 07356108A EP 1900901 A1 EP1900901 A1 EP 1900901A1
Authority
EP
European Patent Office
Prior art keywords
flexible
flexible tubing
casing
hydraulic hose
flexible casing
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Withdrawn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
EP07356108A
Other languages
English (en)
French (fr)
Inventor
Franck Leon
Frédéric Brongniart
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.)
Sandvik Mining and Construction Oy
Sandvik Mining and Construction Lyon SAS
Original Assignee
Sandvik Mining and Construction Oy
Sandvik Mining and Construction Lyon SAS
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 Sandvik Mining and Construction Oy, Sandvik Mining and Construction Lyon SAS filed Critical Sandvik Mining and Construction Oy
Publication of EP1900901A1 publication Critical patent/EP1900901A1/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Withdrawn legal-status Critical Current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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
    • 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
    • E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes

Definitions

  • the present invention relates to drilling equipment used in underground work, particularly in mining operations. It relates, in particular, to roto-percussion drilling devices, of the kind known as "downhole hammer", used in low-elevation mine galleries, in particular for drilling holes in the "roof" of such galleries.
  • this invention relates to a flexible tubing, used to supply, in high pressure hydraulic fluid such as water, a downhole hammer as described, for example, in patent documents.
  • a downhole hammer comprises a generally cylindrical perforator body which is connected, by a flexible casing, to a high-pressure water pump, placed at a distance in particular on a carrier vehicle of low height.
  • Means for moving forward of the flexible casing are provided on the carrier vehicle, to transmit through this flexible casing a thrust to the drill body, the depth of the drilled hole being substantially equivalent to the driving stroke of the flexible casing .
  • means for rotating the flexible casing are provided on the carrier vehicle, to transmit through this casing an alternating or continuous rotation movement to the body of the perforator.
  • the flexible casing must, simultaneously, ensure the transmission of the thrust force (which may be greater than 2000 N) and the transmission of the rotational torque (of the order of 50 to 200 Nm) to the piercer body, as well as the transport of a hydraulic fluid under pressure.
  • the thrust force which may be greater than 2000 N
  • the rotational torque of the order of 50 to 200 Nm
  • the present invention aims to meet this need, and is therefore intended to provide a flexible device of specific design, for transmitting a thrust force and a torque, while ensuring the transport of the hydraulic fluid under pressure necessary for operation.
  • down-hole hammer this device remains composed of relatively common parts and materials so that it can be manufactured in a economical and can also be easily replaced after wear or degradation.
  • the subject of the invention is a flexible casing for a rotopercussion drill device, the flexible casing being provided for transmitting a thrust force and a rotation torque to a drill body, and for supplying the drill body with hydraulic fluid under pressure
  • this flexible casing being essentially characterized by the fact that it consists, outside or inside, of a hydraulic hose and, inside or outside as the case may be, a hose stapled, the ends of the flexible tubing being provided with connectors capable of transmitting the thrust force and the torque.
  • the external (or internal) hydraulic hose provides the seal, and the resistance to pressure, necessary for the transport of the hydraulic fluid, in particular water under high pressure, which is brought to the hammer down-hole to ensure the percussion function.
  • This hydraulic hose outside (or inside) advantageously has conventional structure, with one, two or more braids.
  • the inner (or outer) stapled pipe provides the flexible tubing with the rigidity necessary to transmit the thrust and rotational torque used for drilling, even on a bent path of the flexible tubing.
  • a stapled pipe is a kind of helical spring whose turns are flat and contiguous, these turns being secured to each other by their edges.
  • connections located at the ends of the flexible casing, are necessary for the connection of the flexible casing to the motorized means of rotating drive on the one hand, and the hammer downhole, on the other hand.
  • a rigid connection is provided between a portion of each fitting and the corresponding end of the stapled pipe.
  • each connection comprises an outer annular connection end, a cylindrical insert engaged inside the stapled pipe itself, and an outer skirt fitted around the inside. end of the hydraulic hose here outside.
  • FIG. 1 represents a section of a flexible casing, designated as a whole by the reference 2, this figure showing more particularly the region of one end of the flexible casing 2.
  • the flexible casing 2 has a diameter of less than 30 mm, and here it consists of a conventional hydraulic hose 3 on the outside, and a stapled type pipe 4 on the inside.
  • the hydraulic hose 3, which can be two, three or four braids, provides the seal and the resistance to pressure necessary for the transport of hydraulic fluid, such as water under high pressure, which feeds a hammer. hole 5 (see Figure 2).
  • the stapled pipe 4 provides the flexible tubing 2 the rigidity necessary to transmit the hammer down the thrust force and the torque.
  • each connector 6 comprises an outer annular connecting piece 7, a cylindrical insert 8 engaged inside the stapled tube 4, and an outer skirt 9 fitted around the end of the hydraulic hose 3.
  • the connection 6 thus formed has a rigid connection with the stapled pipe 4, which allows the transmission of the thrust force and the rotational torque by the intermediate of this connection 6, in particular to transmit this thrust force and torque to the hammer down the hole 5.
  • FIG. 2 illustrates, very schematically and by way of example, a rotopercussion drilling device using the flexible casing 2 previously described.
  • This drilling device comprises a carrier vehicle 10, having a frame 11 and wheels 12, which allow it to move in a mine gallery 13 which can be of low height H.
  • a mobile platform 14 On the chassis 11 of the vehicle 10 is mounted a mobile platform 14, movable in translation in the direction of the length of the frame 11.
  • the mobile platform 14 carries a water pump 15 under high pressure which is connected by the casing flexible 2, hammer down hole 5 which, in use, is brought to the location of the hole to be drilled, especially at the "roof" of the mine gallery 13.
  • a solenoid valve 16 allowing the passage of water under high pressure to the casing 2, and motorized means 17 for rotating the flexible casing 2.

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)
EP07356108A 2006-09-13 2007-08-02 Flexibles Rohr für eine Drehschlagbohrvorrichtung Withdrawn EP1900901A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0607997A FR2905724B1 (fr) 2006-09-13 2006-09-13 Tubage flexible pour dispositif de foration par rotopercussion.

Publications (1)

Publication Number Publication Date
EP1900901A1 true EP1900901A1 (de) 2008-03-19

Family

ID=37898737

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07356108A Withdrawn EP1900901A1 (de) 2006-09-13 2007-08-02 Flexibles Rohr für eine Drehschlagbohrvorrichtung

Country Status (6)

Country Link
US (1) US20080061621A1 (de)
EP (1) EP1900901A1 (de)
AU (1) AU2007211872A1 (de)
CA (1) CA2596633A1 (de)
FR (1) FR2905724B1 (de)
ZA (1) ZA200703337B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9562394B2 (en) * 2009-12-28 2017-02-07 Halliburton Energy Services, Inc. Timed impact drill bit steering
US20110232970A1 (en) * 2010-03-25 2011-09-29 Halliburton Energy Services, Inc. Coiled tubing percussion drilling
US11543384B2 (en) * 2019-11-22 2023-01-03 MOBILion Systems, Inc. Mobility based filtering of ions

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2822158A (en) * 1949-03-05 1958-02-04 Willard C Brinton Method of fluid mining
FR1249236A (fr) * 1958-11-27 1960-12-30 Inst Francais Du Petrole Nouvelle méthode de forage
US4057115A (en) * 1976-05-07 1977-11-08 The United States Of America As Represented By The Secretary Of The Interior Flexible shaft for a roof drill
US4149391A (en) * 1975-11-25 1979-04-17 W B Driver Flexible drill pipe
US4577703A (en) * 1982-12-24 1986-03-25 Frieda Cyriacy Apparatus for making boreholes in the lateral walls of narrow underground mine workings
DE3905999C1 (de) * 1989-02-25 1990-01-04 Bergwerksverband Gmbh, 4300 Essen, De
WO2006097584A1 (fr) * 2005-03-17 2006-09-21 Tubest Flexible Solutions Tubulure flexible protegee contre les vibrations

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290494A (en) * 1978-10-02 1981-09-22 The United States Of America As Represented By The United States Department Of Energy Flexible shaft and roof drilling system
DE3322427C2 (de) * 1983-06-22 1985-06-13 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Bohreinrichtung, insbesondere zur Verwendung im untertägigen Grubenbetrieb
US5215151A (en) * 1991-09-26 1993-06-01 Cudd Pressure Control, Inc. Method and apparatus for drilling bore holes under pressure
US5713423A (en) * 1992-07-24 1998-02-03 The Charles Machine Works, Inc. Drill pipe
US5921285A (en) * 1995-09-28 1999-07-13 Fiberspar Spoolable Products, Inc. Composite spoolable tube
CA2473372C (en) * 2002-01-22 2012-11-20 Presssol Ltd. Two string drilling system using coil tubing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2822158A (en) * 1949-03-05 1958-02-04 Willard C Brinton Method of fluid mining
FR1249236A (fr) * 1958-11-27 1960-12-30 Inst Francais Du Petrole Nouvelle méthode de forage
US4149391A (en) * 1975-11-25 1979-04-17 W B Driver Flexible drill pipe
US4057115A (en) * 1976-05-07 1977-11-08 The United States Of America As Represented By The Secretary Of The Interior Flexible shaft for a roof drill
US4577703A (en) * 1982-12-24 1986-03-25 Frieda Cyriacy Apparatus for making boreholes in the lateral walls of narrow underground mine workings
DE3905999C1 (de) * 1989-02-25 1990-01-04 Bergwerksverband Gmbh, 4300 Essen, De
WO2006097584A1 (fr) * 2005-03-17 2006-09-21 Tubest Flexible Solutions Tubulure flexible protegee contre les vibrations

Also Published As

Publication number Publication date
FR2905724A1 (fr) 2008-03-14
FR2905724B1 (fr) 2008-12-19
ZA200703337B (en) 2008-09-25
AU2007211872A1 (en) 2008-04-03
CA2596633A1 (fr) 2008-03-13
US20080061621A1 (en) 2008-03-13

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