EP0795678A1 - Dispositif d'élargissement de la section d'un forage pilote - Google Patents

Dispositif d'élargissement de la section d'un forage pilote Download PDF

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Publication number
EP0795678A1
EP0795678A1 EP97102960A EP97102960A EP0795678A1 EP 0795678 A1 EP0795678 A1 EP 0795678A1 EP 97102960 A EP97102960 A EP 97102960A EP 97102960 A EP97102960 A EP 97102960A EP 0795678 A1 EP0795678 A1 EP 0795678A1
Authority
EP
European Patent Office
Prior art keywords
clearing head
clearing
head
pipe
intermediate piece
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Withdrawn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
EP97102960A
Other languages
German (de)
English (en)
Inventor
Alfons Hesse
Franz-Josef Püttmann
Dieter Wurm
Gerhard Völkel
Karl Beyer
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.)
Gelsenwasser AG
Tracto Technik GmbH and Co KG
Original Assignee
Gelsenwasser AG
Tracto Technik GmbH and Co KG
Tracto Technik Paul Schmidt Spezialmaschinen KG
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 Gelsenwasser AG, Tracto Technik GmbH and Co KG, Tracto Technik Paul Schmidt Spezialmaschinen KG filed Critical Gelsenwasser AG
Publication of EP0795678A1 publication Critical patent/EP0795678A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/201—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes with helical conveying means

Definitions

  • an expansion device in which an expansion head designed as a removal tool is arranged on a tubular thrust and / or rotary driven linkage.
  • the expanding head has an inclined surface and peels the one surrounding the pilot hole Soil from.
  • the linkage is rotatably connected at a distance behind the expanding head to an adapter piece, the end wall of which facing the expanding head is provided with inlet openings for the soil detached from the expanding head.
  • the soil entering the adapter piece through the openings is discharged via a pull pipe connected to the adapter piece, which also serves as a product pipe.
  • the cross-section of the clearing head openings should be smaller than the cross-section of the overburden pipe. This is necessary so that the stones penetrating through the openings can also pass through the overburden pipe. This is very important, especially in gravel soils or rough soils, where the conventional method of material removal does not work via the pipe.
  • the land channels 11 in the clearing head of FIG. 3 are provided with peripheral nozzles 22, from which the flushing liquid reaches the narrow annular space between the product pipe 19 and the surrounding earth.
  • the flushing liquid not only reduces the skin friction, but also stabilizes the earth hole created by the clearing head 1, which is relatively rough due to the influence of the mining tools 13.
  • Web nozzles 23 opening into the interior of the clearing head, together with the head nozzle 10, promote the central removal of the soil from the clearing head 1 via the intermediate piece 15 into the clearing pipe 17.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
EP97102960A 1996-03-15 1997-02-24 Dispositif d'élargissement de la section d'un forage pilote Withdrawn EP0795678A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996110239 DE19610239C1 (de) 1996-03-15 1996-03-15 Vorrichtung zum Vergrößern des Querschnitts einer Pilotbohrung
DE19610239 1996-03-15

Publications (1)

Publication Number Publication Date
EP0795678A1 true EP0795678A1 (fr) 1997-09-17

Family

ID=7788408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97102960A Withdrawn EP0795678A1 (fr) 1996-03-15 1997-02-24 Dispositif d'élargissement de la section d'un forage pilote

Country Status (3)

Country Link
EP (1) EP0795678A1 (fr)
JP (1) JPH1018773A (fr)
DE (1) DE19610239C1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001059248A1 (fr) * 2000-02-11 2001-08-16 Alois Pichler Procede d'introduction de tuyaux dans un trou fore et tete de forage et d'introduction permettant la mise en oeuvre dudit procede
NL1014813C2 (nl) * 2000-03-31 2001-10-02 Van Leeuwen Harmelen Bv Geb Ruimer voor grondboringen.
FR2809449B1 (fr) 2000-05-25 2003-10-03 Jack Butterworth Dispositif pour la mise en place d'une conduite dans un sol
DE502008000862D1 (de) * 2007-08-10 2010-08-12 Vonroll Infratec Invest Ag Zugkopf
DE102007057541A1 (de) 2007-11-29 2009-06-04 Tracto-Technik Gmbh & Co. Kg Vorrichtung zum einstufigen Aufweiten von Erdbohrungen
HUP1700322A2 (hu) * 2017-07-25 2019-01-28 Constructeam Zrt Járat bõvítõ eljárás és szerkezet annak megvalósítására
CN112593953B (zh) * 2020-12-15 2022-09-30 中国铁建重工集团股份有限公司 一种用于刀盘上刀具更换的扩挖装置及刀具更换方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730283A (en) * 1970-11-17 1973-05-01 A Kostylev Method of reaming ground through holes and device for effecting same
US3910361A (en) * 1972-11-15 1975-10-07 Boehler & Co Ag Geb Apparatus for drilling and enlarging a bore
US4091631A (en) * 1975-07-14 1978-05-30 Titan Contractors Corporation System and method for installing production casings
DE3439621A1 (de) * 1984-10-30 1986-05-07 Gerd Dr.-Ing. 2120 Lüneburg Soltau Schuerfscheibe an einer vorrichtung zum unterirdischen vortreiben von rohren
DE3620026A1 (de) * 1986-03-15 1987-09-24 Meyer & John Gmbh & Co Verfahren und vorrichtung zum sanieren von kanalisationen o.ae. aus beton- oder steinzeugrohren
WO1991005132A1 (fr) * 1989-09-29 1991-04-18 Diamant Boart Craelius Ab Alesoir
DE4042140C1 (fr) * 1990-12-28 1992-02-13 Gelsenwasser Ag, 4650 Gelsenkirchen, De
DE4114666A1 (de) * 1991-05-06 1992-11-12 Geisert Bergtechnik Gmbh Vorrichtung zum entfernen einer erdverlegten rohrleitung und gleichzeitigen verlegen einer neuen
DE4220430A1 (de) 1992-06-24 1994-01-05 Tracto Technik Verfahren und Vorrichtung zum Herstellen einer Erdbohrung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730283A (en) * 1970-11-17 1973-05-01 A Kostylev Method of reaming ground through holes and device for effecting same
US3910361A (en) * 1972-11-15 1975-10-07 Boehler & Co Ag Geb Apparatus for drilling and enlarging a bore
US4091631A (en) * 1975-07-14 1978-05-30 Titan Contractors Corporation System and method for installing production casings
DE3439621A1 (de) * 1984-10-30 1986-05-07 Gerd Dr.-Ing. 2120 Lüneburg Soltau Schuerfscheibe an einer vorrichtung zum unterirdischen vortreiben von rohren
DE3620026A1 (de) * 1986-03-15 1987-09-24 Meyer & John Gmbh & Co Verfahren und vorrichtung zum sanieren von kanalisationen o.ae. aus beton- oder steinzeugrohren
WO1991005132A1 (fr) * 1989-09-29 1991-04-18 Diamant Boart Craelius Ab Alesoir
DE4042140C1 (fr) * 1990-12-28 1992-02-13 Gelsenwasser Ag, 4650 Gelsenkirchen, De
DE4114666A1 (de) * 1991-05-06 1992-11-12 Geisert Bergtechnik Gmbh Vorrichtung zum entfernen einer erdverlegten rohrleitung und gleichzeitigen verlegen einer neuen
DE4220430A1 (de) 1992-06-24 1994-01-05 Tracto Technik Verfahren und Vorrichtung zum Herstellen einer Erdbohrung

Also Published As

Publication number Publication date
JPH1018773A (ja) 1998-01-20
DE19610239C1 (de) 1997-07-17

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