WO2013017560A2 - Outil de forage permettant de disposer un tuyau dans le sol - Google Patents

Outil de forage permettant de disposer un tuyau dans le sol Download PDF

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Publication number
WO2013017560A2
WO2013017560A2 PCT/EP2012/064869 EP2012064869W WO2013017560A2 WO 2013017560 A2 WO2013017560 A2 WO 2013017560A2 EP 2012064869 W EP2012064869 W EP 2012064869W WO 2013017560 A2 WO2013017560 A2 WO 2013017560A2
Authority
WO
WIPO (PCT)
Prior art keywords
tube
drilling tool
elongated element
drilling
tool according
Prior art date
Application number
PCT/EP2012/064869
Other languages
English (en)
Other versions
WO2013017560A3 (fr
Inventor
Andrzej Wacinski
Original Assignee
Plumettaz Holding Sa
Ehtp Entreprise Hydraulique Et Travaux Publics
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 Plumettaz Holding Sa, Ehtp Entreprise Hydraulique Et Travaux Publics filed Critical Plumettaz Holding Sa
Priority to EP12745663.0A priority Critical patent/EP2739810A2/fr
Priority to CN201280036517.5A priority patent/CN103717823A/zh
Priority to CA2839804A priority patent/CA2839804A1/fr
Priority to US14/236,554 priority patent/US20140305706A1/en
Publication of WO2013017560A2 publication Critical patent/WO2013017560A2/fr
Publication of WO2013017560A3 publication Critical patent/WO2013017560A3/fr

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
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • E21B4/145—Fluid operated hammers of the self propelled-type, e.g. with a reverse mode to retract the device from the hole
    • 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
    • E21B7/04—Directional drilling
    • E21B7/046—Directional drilling horizontal drilling
    • 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
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/205—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes without earth removal
    • 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
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • 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
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring
    • E21B7/30—Enlarging drilled holes, e.g. by counterboring without earth removal
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling

Definitions

  • the present invention relates to a drilling tool able to drill a passage around a cable or any other buried longilinear element, being guided by said cable or buried longilinear element, said tool pulling a tube behind it.
  • recuperation method would consist in digging a trench over the cable to be removed. This method, expensive in itself due to civil engineering costs is highly inappropriate for work in urban areas or when the buried cable is laid next to other cables or pipes or when it crosses a pavement or a railway track.
  • Patent No. FR 2.851.317 describes a system whereby a hoist pulls on the cable to be replaced, the end of which is connected to the new cable which is thus pulled in replacement of the old cable. Such a device requires a high power hoist the method being difficult to apply when the diameter of the replacement cable is more important than that of the cable to replace.
  • Patent No. FR 2.492.178 describes a tool able to move along a buried cable being activated by hydraulic means, said tool providing a space around the buried cable such as to be able to remove it easily later. A new cable may then be laid in the fitted space.
  • Document FR 2.523.170 describes an impact head able to pull a new cable. None of the cited documents mentions a tool able to move along a cable laid in the ground and to pull a tube behind it, such as to then be able to easily remove the existent cable then lay the new cable.
  • the invention proposes a drilling tool for laying a tube around a buried elongated element, comprising a drilling head guided by the buried element, moving under the action of a pressurized fluid, from a first free end of the buried element towards a second end of the buried element, and pulling the tube, characterized in that the drilling tool comprises pressurization means attached to the first end of the buried element, able to slide into the tube pulled by the drilling head and able to create a pushing force on the drilling head by the pressurization with said pressurized fluid of a pressure chamber arranged between the drilling head and the pressurization means.
  • Alternative embodiments are described in the dependent claims .
  • the invention improves the laying of the tube around the elongated element by the creation of an additional pushing force with the pressurization of the pressure chamber.
  • the drilling head is directly fed with pressurized fluid by the pressure chamber.
  • the present invention provides an economic tool, as the drilling head is directly fed with pressurized fluid by the pressure chamber: there are no feeding pipes which follow the drilling head during the widening of the ground around the buried cable or duct. The efficiency of the tool is also increased as there is no friction of such feeding pipes between the installed tube and the buried element.
  • Fig.l. represents a general schematic view of an operation of laying a buried tube using a drilling tool according to the invention
  • Fig.2 represents a partial cross-section view of a drilling head which is part of the drilling tool according to the invention
  • Fig.3 represents a front view of a cap fixed to an end of the cable to remove and part of the drilling tool according to the invention
  • Fig.4 is a cross section view of the cap of the previous fig. .
  • Fig.5 represents a front view of a safety disk
  • Fig.6 is a lateral view of the disk of the previous figure .
  • Fig.l shows a cable 1 to remove, buried in an embankment 10, surrounded by two excavations 11 and 12 wherein the two ends 13 and 14 of the cable 1 open into.
  • a drilling head 2 has been introduced around the end 14, the rear side 20 of the head 2 being firmly connected to a tube 3 which thus, advances in the advancing movement of the head 2.
  • An external drive 30, for example a caterpillar pushing drive may be provided to facilitate the advance of the tube 3.
  • the drilling head 2 is completed with a cap 4 fixed to the rear end 14 of the cable 1.
  • a pressurized air inlet piping 40 based on a compressor 41 is connected to the cap 4 in order to put under pressure a pressure chamber 42 arranged within the tube 3, between the cap 4 and the rear side of the tool 2.
  • the device may be completed with a fixing disk 6 firmly fixed near to the end 13 of the cable 1 and able to press against a wall 110 of the excavation 11 in order to prevent any removal movement of the cable 1.
  • the pressure chamber 42 When the pressure chamber 42 is supplied with pressurized air by the piping 40 and through the cap 4, the latter being sealed, the air pressure rapidly increases within the chamber 42.
  • the latter may be separated into two chambers 420 and 421 by a safety disk 5, not entirely sealed, the pressure in the two chambers 420 and 421 being equal in normal operating regime .
  • the drilling head 2 represented on fig. 2 is substantially constituted of an impact head of known technique. It comprises two bodies 21 and 22 sliding onto each other by a few millimeters.
  • the rear side 20 of the drilling head 2, respectively from the body 22 comprises one or several apertures of nozzles 200 conducting the pressurized air, coming from the chamber 421, towards a cutterhead chamber 201 provided between the bodies 21 and 22 and containing an oscillating mass 202.
  • This chamber 201 air inlet and outlet pipes are fitted in a known manner in such a way that under the air pressure, the oscillating mass 202 starts oscillating and regularly comes to hit a rear side 210 of the body 21 of the drilling head 2, in order to make the tool 2 advance in a pulsating manner, according to a known technique of the percussion hammers.
  • a spring means 204 is arranged in the rear portion of the cutterhead chamber 201, such as to receive and damp the shock at the rear of the oscillating mass 202.
  • a filter, represented in 203 prevents dust or debris from penetrating into the piping 200 and blocking the cutterhead chamber 201.
  • This fixing portion comprises a notching or any other means making it possible to ensure a firm hold of the tube 3.
  • a pipe clamp 221 comes to tightly encircle the end of the tube 3 by the outside in order to ensure its hold against the fixing portion 220.
  • a seal, for example an O-ring seal 222 comes to ensure the tightness between the tube 3 and the body 22, thus creating the pressurizing chamber 421, thus enabling a continuous additional push such as described previously coming to be added to the penetration force by percussion described above.
  • Figs. 3 and 4 are two representations of the previously mentioned cap 4.
  • the cap 4 is in its normal operating state, the pressurized air inlet piping 40 being connected to a piping fixing represented in 400.
  • a pipe 401 arranged coaxially to the cap 4 and crossing it on either side opens onto apertures 402 supplying the chamber 42, respectively 420, with pressurized air.
  • a fastener 43 connects a cylindrical portion 430 of the cap 4 to an attaching means 15 fixed to the end of the cable 1.
  • a sealing means 44 for example an O-ring seal, ensures tightness between the chamber 420 and the rear portion of the tube 3.
  • This sealing means 44 is a means allowing for the sliding of the tube 3 around the cap 4 during the pulling of the tube 3 by the drilling head 2.
  • the pressurized air in the chamber 42 represents a very high power.
  • the attachment means 43, 15 break between the cable 1 and the cap 4, the latter would thus be hurled along the rear end of the tube 3 such a cannonball.
  • the staff at work in the excavation 12 may thus be subjected to severe harm.
  • the air pressure in the chamber 42 may thus push to the right of the fig., via apertures 431, a tapered cone crown 432 fixed to said cylindrical portion 430.
  • two brake linings 433, able to be moved radially are pushed outwards by their tapered contact surfaces and come to brake then block the cap 4 against the internal surface of the tube 3.
  • the pressurized air supply apertures 402 of the chamber 42 close up by sliding the tubular portion 430, thus cutting the pressurized air supply of this chamber.
  • the cap 4 thus substantially serves to create the pressure chamber 42, this cap 4 being provided with safety means described to prevent any accidents if its attachment means happen to break.
  • This means is constituted of a safety disk, represented in 5 on fig 1.
  • the safety disk 5 is constituted of two semi-tubular portions 50 and 51, tightly encircling a portion close to the rear end of the cable 1 and fixed together with screws 52.
  • this disk 5 separates the pressure chamber 42 into two portions 420 and 421. These portions are not sealingly separated, there are links between these portions on the border of the disk 442 as well as between the two semi-tubular portions 423.
  • the air pressure may easily pass from the chamber 420 to the chamber 421 by links 422 and 423, whereas in the case of sudden depression in the chamber 420, the air of the chamber 421 will only escape more slowly.
  • the device may be completed with a fixing disk represented in 6 on fig.l. It is a disk of external diameter clearly larger than that of cable 1 and fixed firmly on it at its end 13 opening into the excavation 11.
  • a fixing disk represented in 6 on fig.l. It is a disk of external diameter clearly larger than that of cable 1 and fixed firmly on it at its end 13 opening into the excavation 11.
  • the tool has been described to operate with pressurized air, an equivalent tool may also operate with a liquid, for example pressurized water, the skilled person being able to adapt the described elements to such functioning .
  • the tool according to the invention has been described as adaptable to the retraction of a cable 1; it is obvious that it may easily adapt itself to the retraction of a piping or any other longilinear or elongated element of circular section .

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)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

La présente invention a trait à un outil de forage permettant de disposer un tuyau (3) autour d'un élément allongé enterré (1), lequel outil de forage comprend une tête de perçage (2) qui est guidée par l'élément enterré (1), qui se déplace sous l'action d'un fluide sous pression, depuis une première extrémité libre (14) de l'élément enterré jusqu'à une seconde extrémité (13) de l'élément enterré (1), et qui tire le tuyau (3); la présente invention est caractérisée en ce que l'outil de forage comprend un moyen de mise sous pression (4) qui est attaché à la première extrémité (14) de l'élément enterré (1), qui est en mesure de coulisser dans le tuyau (3) qui est tiré par la tête de perçage (2) et qui est en mesure de créer une force de poussée sur la tête de perçage (2) grâce à la mise sous pression au moyen dudit fluide sous pression d'une chambre sous pression (42) qui est agencée entre la tête de perçage (2) et le moyen de mise sous pression (4).
PCT/EP2012/064869 2011-08-02 2012-07-30 Outil de forage permettant de disposer un tuyau dans le sol WO2013017560A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP12745663.0A EP2739810A2 (fr) 2011-08-02 2012-07-30 Outil de forage permettant de disposer un tuyau dans le sol
CN201280036517.5A CN103717823A (zh) 2011-08-02 2012-07-30 用于把管子铺设在地面中的钻具
CA2839804A CA2839804A1 (fr) 2011-08-02 2012-07-30 Outil de forage permettant de disposer un tuyau dans le sol
US14/236,554 US20140305706A1 (en) 2011-08-02 2012-07-30 Drilling tool for laying a tube in the ground

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH12892011 2011-08-02
CH01289/11 2011-08-02

Publications (2)

Publication Number Publication Date
WO2013017560A2 true WO2013017560A2 (fr) 2013-02-07
WO2013017560A3 WO2013017560A3 (fr) 2013-11-14

Family

ID=46640660

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/064869 WO2013017560A2 (fr) 2011-08-02 2012-07-30 Outil de forage permettant de disposer un tuyau dans le sol

Country Status (5)

Country Link
US (1) US20140305706A1 (fr)
EP (1) EP2739810A2 (fr)
CN (1) CN103717823A (fr)
CA (1) CA2839804A1 (fr)
WO (1) WO2013017560A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017105234A1 (de) * 2016-12-09 2018-06-14 Beermann Bohrtechnik Gmbh Verfahren und Vorrichtung zur grabenlosen Verlegung eines Kabels oder Rohres in einem Boden
CN111101851B (zh) * 2019-12-19 2021-08-06 国网江苏省电力工程咨询有限公司 一种能够进行深度调节的城建电缆铺设用打洞装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492178A1 (fr) 1980-10-10 1982-04-16 Cerberus Ag Limiteur de tension a enveloppe etanche au gaz en matiere isolante
FR2523170A1 (fr) 1982-03-09 1983-09-16 Inst Gornogo Dela Sibirskogo O Dispositif pour le percement de trous dans le sol
FR2851317A1 (fr) 2003-02-14 2004-08-20 Joseph Daumer Dispositif de traction d'un appareil d'installation d'une conduite de remplacement

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US4403667A (en) * 1981-08-03 1983-09-13 Electric Power Research Institute, Inc. Cable following apparatus utilizing a releasable cable gripping mechanism
US4519462A (en) * 1982-09-02 1985-05-28 Electric Power Research Institute, Inc. Cable following apparatus having cable cleaning capabilities and method
GB2137719B (en) * 1983-03-31 1987-01-28 Daly Limited P N Pipe replacement
DE3826513A1 (de) * 1988-08-04 1990-02-08 Schmidt Paul Verfahren und rammbohrgeraet zum grabenlosen verlegen von versorgungsleitungen
FI941154A0 (fi) * 1994-02-21 1994-03-11 Valto Ilomaeki Anordning foer uppborrning av en tunnel
NL9401838A (nl) * 1994-11-04 1996-06-03 Nederland Ptt Installatie van kabelducts.
US5628585A (en) * 1995-04-28 1997-05-13 Tti Trenchless Technologies, Inc. Method and apparatus for removal of utility line and replacement with polyolefin pipe
DE19817872C2 (de) * 1998-04-22 2002-08-08 Tracto Technik Aufweitvorrichtung
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FR2847645B1 (fr) * 2002-11-21 2008-07-04 Installation et procede pour remplacer sans tranchee un tuyau de plomb d'une canalisation d'eau enfouis dans le sol, par un tuyau en plastique
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492178A1 (fr) 1980-10-10 1982-04-16 Cerberus Ag Limiteur de tension a enveloppe etanche au gaz en matiere isolante
FR2523170A1 (fr) 1982-03-09 1983-09-16 Inst Gornogo Dela Sibirskogo O Dispositif pour le percement de trous dans le sol
FR2851317A1 (fr) 2003-02-14 2004-08-20 Joseph Daumer Dispositif de traction d'un appareil d'installation d'une conduite de remplacement

Also Published As

Publication number Publication date
US20140305706A1 (en) 2014-10-16
WO2013017560A3 (fr) 2013-11-14
EP2739810A2 (fr) 2014-06-11
CA2839804A1 (fr) 2013-02-07
CN103717823A (zh) 2014-04-09

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