EP1448866B1 - Procede et dispositif de forage de trous - Google Patents

Procede et dispositif de forage de trous Download PDF

Info

Publication number
EP1448866B1
EP1448866B1 EP02791587A EP02791587A EP1448866B1 EP 1448866 B1 EP1448866 B1 EP 1448866B1 EP 02791587 A EP02791587 A EP 02791587A EP 02791587 A EP02791587 A EP 02791587A EP 1448866 B1 EP1448866 B1 EP 1448866B1
Authority
EP
European Patent Office
Prior art keywords
drill
jacket tube
drill bit
rod assembly
drilling
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 - Lifetime
Application number
EP02791587A
Other languages
German (de)
English (en)
Other versions
EP1448866A1 (fr
Inventor
Josef Mocivnik
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.)
Techmo Entwicklungs und Vertriebs GmbH
Original Assignee
Techmo Entwicklungs und Vertriebs GmbH
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 Techmo Entwicklungs und Vertriebs GmbH filed Critical Techmo Entwicklungs und Vertriebs GmbH
Priority to AT02791587T priority Critical patent/ATE307265T1/de
Publication of EP1448866A1 publication Critical patent/EP1448866A1/fr
Application granted granted Critical
Publication of EP1448866B1 publication Critical patent/EP1448866B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • E21B21/103—Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole

Definitions

  • the present invention relates to a method for drilling, in particular impact or rotary impact drilling, of Holes in soil or rock material, where by a drill bit supported on a drill pipe by a hammering and / or rotating motion a borehole is formed and a cladding tube is inserted into the wellbore is degraded, with at least one supply port degraded Material and / or in particular through the drill pipe in the area of the drill bit introduced rinsing or cooling fluid in one between the outer circumference of the drill string and introduced into the inner circumference of the cladding tube defined annular space and discharged from the wellbore.
  • the invention further relates to a device for drilling, in particular impact or rotary impact drilling, from holes in Soil or rock material, one on a drill string mounted drill bit by a beating and / or rotating motion forms a borehole and a drill pipe surrounding jacket or cladding tube in the borehole einbringbar, in particular through the interior of the Bohrgestlindes a rinsing or cooling fluid in the field of Removal surface of the drill bit can be brought in and mined material and / or the rinsing or cooling fluid over at least one Feed opening in an annulus between the drill pipe and the cladding tube einbringbar and ausbringbar from the borehole is.
  • Methods and devices of the type mentioned are for example from AT-B 390 303, WO 98/21439 or WO 00/57019 known, in these known embodiments degraded material and / or introduced flushing or cooling fluid substantially via a between the Drill pipe and the cladding tube defined annulus applied becomes.
  • the flushing or cooling fluid may be in the range the excavation surface of the drill bit, for example via a corresponding cavity introduced in the interior of the drill string become.
  • a disadvantage of these known embodiments is in particular the fact that at a water entry when performing the drilling, where appropriate the water enters the borehole under high pressure, this incoming water together with the mined material as well as the introduced rinsing or cooling fluid in particular through the annulus between the drill string and the cladding tube as well as along the outer circumference of the cladding tube is discharged from the well and thus a hazard representing for the operator, wherein due to a prevailing, high pressure, if necessary also the entire drilling device against the drilling direction can be discharged from the borehole.
  • the present invention aims to provide a method and a device of the type mentioned above further, that upon entry of water, if necessary under high pressure, in the borehole and especially in the Ensured area of the drill bit a seal to this effect can be that the leakage of water in particular about the available during the normal drilling process stationary transport cross sections for mined material and rinsing or cooling fluid is prevented and a safe Anchoring the drilling device or at least the Jacket or cladding tube is achieved.
  • the method of the beginning mentioned type essentially characterized in that at or after completion of the well, the supply of Flushing or cooling fluid is interrupted in the drill bit, that the feed opening for the introduction of mined material and / or rinsing or cooling fluid in the annular space between interrupted the drill pipe and the cladding tube, in particular is sealed fluid-tight and that the jacket or cladding tube at its projecting from the borehole end set the borehole wall and against this fluid-tight is sealed.
  • both the Supply of flushing or cooling fluid interrupted in the drill bit is as well as the access or supply opening in the Annular space between the drill string and the cladding tube interrupted or is sealed fluid-tight, it is ensured that upon entry of water into the wellbore, in particular in the area of the drill bit, this if necessary high pressure water is not contrary to Supply direction for the flushing or cooling fluid and in the Abtransportides for the mined material and the introduced Rinsing or cooling fluid discharged from the wellbore will, so that a corresponding threat to the operator as well as damage outside of Boreholes located additional devices prevented becomes.
  • the invention provides that the jacket or cladding tube at its protruding from the borehole Fixed end against the borehole wall and fluid-tight is sealed, so that also a leakage of water over the between the outer circumference of the cladding tube and the Boreholeinnenwand free space safely avoided becomes. It is thus provided according to the invention that in the area the drill bit a reliable seal the annulus between the drill string and the cladding tube, which during the drilling process for a removal of the mined Material is used, achievable and simultaneously leakage of water over the outer circumference of the cladding tube is also prevented. It also ensures that not contrary to the feed pressure for the rinsing or cooling fluid optionally water via the supply line drilled out of the drill hole in the drill pipe and in corresponding feeders outside the borehole is introduced.
  • the jacket tube supply opening for an introduction of material in the annulus between the drill pipe and the cladding tube by moving the drill bit against the direction of drilling over at least one of the the excavation surface of the drill bit facing away end provided Sealing is sealed.
  • the cladding tube in the region of the seal on the from the borehole projecting end to prevent a Secured distance from borehole counter to drilling direction, in particular wedged or jammed.
  • a Secured distance from borehole counter to drilling direction in particular wedged or jammed.
  • the drill bit For an appropriate backup of after removing the Drill string in the borehole remaining cladding as well the drill bit is according to a further preferred embodiment suggested that after removing the drill pipe in a conventional manner, the borehole, in particular the jacket or cladding tube, with a hardening material is filled.
  • a device of the type mentioned above essentially characterized that in the supply line for the flushing or cooling fluid into the drill bit as well as in the area of at least a feed opening in the annulus between the drill string and at least one sealing element is provided to the cladding tube is and that the cladding on the borehole projecting end to the surrounding soil or rock material via a fixing and / or sealing device set and sealed fluid-tight.
  • both the supply line for a supply of the flushing or cooling fluid into the drill bit as also the supply opening for the removal of dismantled Material and introduced rinsing or cooling fluid accordingly is interrupted and sealed to a withdrawal optionally water entering at high pressure over the drill bit as well as during the drilling process to prevent transport cross-section provided.
  • an appropriate determination and / or sealing device for fixing and sealing provided the projecting from the borehole end of the cladding tube.
  • Such a check valve can be correspondingly easy and cost, especially in the field of drill bit immediately before the exit of the flushing fluid from corresponding Through openings in the mining area of the Arrange drill bit and results in the event that in the area the mining area entering water a higher Should have pressure as the supply pressure of the flushing fluid, immediately an automatic interruption and sealing the supply line for the flushing fluid.
  • One Such sealing element can be correspondingly to that of the excavation surface of the drill bit opposite end of the drill bit provide, as already explained above, by a retraction of the drill bit in the cladding tube on completion the bore or possibly a movement of the Drill bit by acting on the mining surface water pressure against the propulsive forces directly and automatically the at least one feed opening in the annulus between interrupted the drill pipe and the cladding tube and is sealed, so that a leakage of water, in particular under high pressure, reliable over this annulus to the outside is prevented.
  • the sealing element at a matched to the inner dimensions of the cladding tube Extension of the drill bit is formed, which with additional Sealing elements, in particular sealing rings formed is.
  • Such an extension is used during the drilling process as a guide for centering the drill bit in the Cladding tube and can be correspondingly accurate in one, if necessary reinforced, received front portion of the cladding to be after a retraction or retraction the drill bit counter to the drilling direction in the cladding tube a reliable sealing of the feed opening in the annulus between the drill string and the cladding tube.
  • the sealing effect can hiebei next to a precise fit arrangement the drill bit or the extension of the drill bit in Cladding by additional provision of sealing elements, in particular seals are supported, which in particular are arranged such that in the closed position the additional sealing elements according to the positioning or formation of the at least one access opening are arranged.
  • Fixing and sealing the projecting from the borehole End of the cladding tube is according to a further preferred Embodiment proposed that at the fixing and / or sealing device for fixing and sealing of the cladding tube at the projecting from the borehole End provided at least one securing or clamping element is.
  • Such a securing or clamping element allows a substantially unhindered introduction of the Cladding during the drilling process, during an application or force in the sense of expulsion of the cladding tube from the borehole counter to the drilling direction an additional clamping force and thus supporting power is provided for fixing the cladding tube.
  • a special reliable and easy to manufacture additional protection of the cladding can be hiebei thereby achieve that the securing or clamping element of a ring element surrounding the cladding tube is formed, which on its outer surface a conically tapering Has surface and with a complementary, conical tapered inner surface of the fixing element at a movement of the cladding tube cooperates counter to the direction of drilling and a movement of the cladding tube against the Drilling direction prevents, as a further preferred Embodiment of the device according to the invention corresponds.
  • a drill bit 1 which is mounted on a drill pipe 2 is made a hole 3, the drill bit 1 at its excavation surface 4, for example, corresponding hard material or carbide inserts 5 has.
  • a rinsing or cooling fluid in the area of the mining area 4 of the drill bit 1 is introduced, wherein in Figs. 1 and 2, an outlet opening 7 is indicated.
  • a check valve 8 which is opposite to the 9 indicated Supply direction for the flushing or cooling fluid closes.
  • the drill string 2 is surrounded by a cladding tube 10, wherein degraded material and introduced flushing or cooling fluid according to the arrows 26 via passage or Feed openings 12 in the annular space 13 between the outer periphery the drill string 2 and the inner circumference of the cladding tube 10 introduced and deployed from the borehole 3 becomes, as shown in Fig. 1, which the drilling state shows.
  • the cladding tube 10 is projecting at its out of the borehole 3 End region 14 via a fixing device 15 on the the borehole 3 surrounding material 16 secured, in addition a sealing element 17 is indicated.
  • Fig. 2 the state is shown, in which the drill bit 1 either against the drilling direction 9 in the interior of the cladding tube 10 has been withdrawn or the drill bit 1 for example, by an entry of fluid, in particular Water according to the arrow 21 in the interior of the borehole 3 shifted against the drilling direction in the cladding tube 10 has been.
  • fluid in particular Water according to the arrow 21 in the interior of the borehole 3 shifted against the drilling direction in the cladding tube 10 has been.
  • the position shown in Fig. 2 includes an entry of water under high pressure in the front of Dismantling surface of the drill bit 1 lying space 22 the check valve 8 in the supply line 6 for the rinsing or Cooling fluid.
  • the supply openings 12 in the annulus 13 between the drill string 2 and the cladding tube 10 by a sealing member 23 is closed, which on an extension 24 facing away from the excavation surface 4 of the drill bit 1 End is formed, wherein the sealing member 23rd not only according to the exact fit inside the cladding tube 10th is guided, but to further support the sealing effect additional sealing elements 25, in particular sealing rings having. It is thus reliable by the sealing element 23 an entry of material as well as possibly Water under high pressure into the interior of the annular space 13 avoided.

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)

Claims (12)

  1. Procédé pour le forage, en particulier le forage à percussion ou à roto-percussion, de trous (3) dans de la terre ou de la roche, un trou de forage (3) étant formé par une couronne de forage (1) montée sur une tige de forage (2) par un mouvement de percussion et/ou de rotation et un tube d'enveloppe ou gaine (10) étant introduit dans le trou de forage (3), du matériau abattu et/ou en particulier du fluide de lavage ou de refroidissement introduit à travers la tige de forage (2) dans la zone de la couronne de forage (1) étant introduits par l'intermédiaire d'au moins une ouverture d'arrivée (12) dans un espace annulaire (13) défini entre le pourtour extérieur de la tige de forage (2) et le pourtour intérieur du tube d'enveloppe (10) et étant évacués du trou de forage (3), caractérisé en ce que l'arrivée de fluide de lavage ou de refroidissement dans la couronne de forage (1) est interrompue lors de ou après l'achèvement du trou de forage (3), que l'ouverture d'arrivée (12) pour l'introduction de matériau abattu et/ou de fluide de lavage ou de refroidissement dans l'espace annulaire (13) entre la tige de forage (2) et le tube d'enveloppe (10) est rendue étanche aux fluides et que le tube d'enveloppe ou gaine (10) est fixé et rendu étanche aux fluides par rapport à la paroi du trou de forage (16) à son extrémité dépassant du trou de forage (3).
  2. Procédé suivant la revendication 1, caractérisé en ce que l'ouverture d'arrivée (12) prévue dans le tube d'enveloppe (10) pour une introduction de matériau dans l'espace annulaire (13) entre la tige de forage (2) et le tube d'enveloppe (10) est étanchéifiée par un déplacement de la couronne de forage (1) à l'opposé du sens de forage par l'intermédiaire d'au moins un élément d'étanchéité (8, 23) prévu à l'extrémité opposée à la surface d'abattage de la couronne de forage (1).
  3. Procédé suivant l'une des revendications 1 et 2, caractérisé en ce que le tube d'enveloppe (10) est bloqué, en particulier calé ou coincé, dans la zone de l'étanchéité à l'extrémité dépassant du trou de forage (3) pour empêcher un retrait hors du trou de forage (3) à l'opposé du sens de forage.
  4. Procédé suivant l'une des revendications 1, 2 et 3, caractérisé en ce que la tige de forage (2) après l'achèvement du forage est de manière connue en soi séparée de la couronne de forage (1) et retirée du tube d'enveloppe (10).
  5. Procédé suivant la revendication 4, caractérisé en ce que, après le retrait de la tige de forage (2) de manière connue en soi, le trou de forage (3), en particulier le tube d'enveloppe ou gaine (10), est remblayé par un matériau durcissable.
  6. Dispositif pour le forage, en particulier le forage à percussion ou à roto-percussion, de trous (3) dans de la terre ou de la roche, une couronne de forage (1) montée sur une tige de forage (2) réalisant un trou de forage (3) par un mouvement de percussion et/ou de rotation et un tube d'enveloppe ou gaine (10) entourant la tige de forage (2) pouvant être introduit dans le trou de forage (3), un fluide de lavage ou de refroidissement pouvant être introduit dans la zone de la surface d'abattage de la couronne de forage (1) en particulier à travers l'intérieur de la tige de forage (2) et du matériau abattu et/ou le fluide de lavage ou de refroidissement pouvant être introduits par l'intermédiaire d'au moins une ouverture d'arrivée (12) dans un espace annulaire (13) entre la tige de forage (2) et le tube d'enveloppe (10) et être évacué du trou de forage (3), caractérisé en ce qu'il est prévu au moins un élément d'étanchéité (8, 23) dans la conduite d'arrivée (6) pour le fluide de lavage ou de refroidissement dans la couronne de forage (1) comme également dans la zone de la au moins une ouverture d'arrivée (12) dans l'espace annulaire (13) entre la tige de forage (2) et le tube d'enveloppe (10), et que le tube d'enveloppe (10) est fixé et rendu étanche aux fluides par un équipement de fixation et/ou d'étanchéité (15, 17) à l'extrémité (14) dépassant du trou de forage (3) sur la terre ou la roche (16) environnante.
  7. Dispositif suivant la revendication 6, caractérisé en ce qu'une soupape anti-retour (8) fermant à l'opposé du sens d'arrivée (9) du fluide de lavage ou de refroidissement est prévue dans la conduite d'arrivée (6) pour le fluide de lavage ou de refroidissement dans la couronne de forage (1).
  8. Dispositif suivant l'une des revendications 6 et 7, caractérisé en ce qu'il est prévu au moins un élément d'étanchéité (23) à l'extrémité de la couronne de forage (1) opposée à la surface d'abattage (4) de la couronne de forage, qui étanchéifie après l'achèvement du trou de forage (3), en particulier par un déplacement de la couronne de forage (1) à l'opposé du sens de forage (9), l'ouverture d'arrivée (12) réalisée dans le tube d'enveloppe (10) dans l'espace annulaire (13) entre la tige de forage (12) et le tube d'enveloppe (10).
  9. Dispositif suivant la revendication 8, caractérisé en ce que l'élément d'étanchéité (23) est formé sur un prolongement (24) de la couronne de forage (1) adapté aux dimensions intérieures du tube d'enveloppe (10), qui est réalisé avec des éléments d'étanchéité supplémentaires (25), en particulier des bagues d'étanchéité.
  10. Dispositif suivant l'une des revendications 6 à 9, caractérisé en ce qu'au moins un élément de blocage ou de coinçage (18) est prévu sur l'équipement de fixation ou d'étanchéité (15, 17) pour la fixation et l'étanchéité du tube d'enveloppe (10) à l'extrémité (14) dépassant du trou de forage (3).
  11. Dispositif suivant la revendication 10, caractérisé en ce que l'élément de blocage ou de coinçage (18) est formé par un élément annulaire entourant le tube d'enveloppe (10), qui présente sur sa surface extérieure une surface se rétrécissant en cône (19) et coopère avec une surface intérieure complémentaire (20), se rétrécissant en cône, de l'élément de fixation (15) lors d'un déplacement du tube d'enveloppe (10) à l'opposé du sens de forage (9) et empêche un déplacement du tube d'enveloppe (10) à l'opposé du sens de forage (9).
  12. Dispositif suivant l'une des revendications 6 à 11, caractérisé en ce que la tige de forage (2) peut être de manière connue en soi dégagée de la couronne de forage (1) et retirée du trou de forage (3).
EP02791587A 2001-11-30 2002-11-26 Procede et dispositif de forage de trous Expired - Lifetime EP1448866B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT02791587T ATE307265T1 (de) 2001-11-30 2002-11-26 Verfahren und vorrichtung zum bohren von löchern

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT18752001A AT411383B (de) 2001-11-30 2001-11-30 Verfahren und vorrichtung zum bohren von löchern
AT18752001 2001-11-30
PCT/AT2002/000330 WO2003046330A1 (fr) 2001-11-30 2002-11-26 Procede et dispositif de forage de trous

Publications (2)

Publication Number Publication Date
EP1448866A1 EP1448866A1 (fr) 2004-08-25
EP1448866B1 true EP1448866B1 (fr) 2005-10-19

Family

ID=3689195

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02791587A Expired - Lifetime EP1448866B1 (fr) 2001-11-30 2002-11-26 Procede et dispositif de forage de trous

Country Status (6)

Country Link
EP (1) EP1448866B1 (fr)
AT (1) AT411383B (fr)
AU (1) AU2002357954A1 (fr)
DE (1) DE50204631D1 (fr)
TW (1) TW200303955A (fr)
WO (1) WO2003046330A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111188575A (zh) * 2020-01-15 2020-05-22 张百双 一种旋转导向钻井装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412802B (de) * 2003-10-01 2005-07-25 Techmo Entw & Vertriebs Gmbh Verfahren und vorrichtung zum bohren von löchern in boden- oder gesteinsmaterial
NO337771B1 (en) * 2015-03-18 2016-06-20 Resonator As Percussive hammering assembly
CN109098662B (zh) * 2018-08-25 2020-02-21 西南石油大学 一种钻完井管道下料装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3905106C2 (de) * 1989-02-20 1994-08-11 Fritz Zimmermann Masch U Appar Tiefloch-Bohrhammer mit Wasserspüleinrichtung
DE19831009C2 (de) * 1998-07-10 2000-05-18 Btd Bohrtechnik Gmbh Bohrvorrichtung
ATE257213T1 (de) * 1998-08-21 2004-01-15 Techmo Entw & Vertriebs Gmbh Vorrichtung zum bohren und drainagieren von löchern in boden- oder gesteinsmaterial
WO2000057019A1 (fr) * 1999-03-18 2000-09-28 Techmo Entwicklungs- Und Vertriebs Gmbh Dispositif de forage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111188575A (zh) * 2020-01-15 2020-05-22 张百双 一种旋转导向钻井装置
CN111188575B (zh) * 2020-01-15 2021-06-04 大庆明悦石油科技有限公司 一种旋转导向钻井装置

Also Published As

Publication number Publication date
ATA18752001A (de) 2003-05-15
DE50204631D1 (de) 2006-03-02
WO2003046330A1 (fr) 2003-06-05
AU2002357954A1 (en) 2003-06-10
EP1448866A1 (fr) 2004-08-25
AT411383B (de) 2003-12-29
TW200303955A (en) 2003-09-16

Similar Documents

Publication Publication Date Title
EP0397870B1 (fr) Procede de cuvelage de la veine de production dans un puits
DE60305733T2 (de) Bohren eines bohrlochs
DE2118815C3 (de) Vorrichtungen zum Einzementieren eines Futterrohrstranges in einem Bohr loch
EP2080836B1 (fr) Procédé destiné à la fixation de sections de sol et dispositif destiné à l'exécution du procédé
EP0948701B1 (fr) Procede et dispositif pour forer et revetir en meme temps des trous
DE602004007645T2 (de) Vorrichtung zum setzen von gebirgsankern und zum automatischen setzen von gebirgsankern sowie setzen von gebirgsankern
DE3103762A1 (de) Einrichtung zum regeln der geschwindigkeit einer geraetebewegung in der verrohrung eines bohrlochs
DE102007014905A1 (de) Doppelankersystem, als Zweiphasen- Patronen- Mischanker, mit Hohl- und Vollstabprofil
DE602004012884T2 (de) Verfahren und vorrichtung zum installieren eines selbstbohrenden expandierenden gebirgsankers und selbstbohrender gebirgsanker
EP0218987A2 (fr) Méthode pour la mise en place d'un élément de construction au travers d'un rideau de palplanches dans une formation du sol comportant de l'eau sous pression ainsi qu'un dispositif pour la mise en oeuvre de la méthode
WO2001088326A1 (fr) Dispositif pour etancheifier un trou de forage et pour enlever des deblais de forage ou un materiau d'exploitation detache
EP1448866B1 (fr) Procede et dispositif de forage de trous
EP2496786B1 (fr) Procédé de forage, en particulier de forage par percussion ou par rotopercussion pour creuser des trous dans le sol ou dans des roches et dispositif associé
DE3612762A1 (de) Teleskopierbares bohrgeraet
DE2712869C2 (de) Verfahren zum Vermeiden von Wassereinbrüchen in untertägige Hohlräume
AT413231B (de) Verfahren und vorrichtung zum bohren von löchern in boden- oder gesteinsmaterial
AT412802B (de) Verfahren und vorrichtung zum bohren von löchern in boden- oder gesteinsmaterial
AT5717U1 (de) Vorrichtung zum bohren, insbesondere schlag- oder drehschlagbohren, von bohrlöchern
AT13292U1 (de) Verfahren und Vorrichtung zum Ausbilden von Bohrlöchern und Festlegen einer Verankerung in dem Bohrloch
DE4318736A1 (de) Verfahren und Vorrichtung zur Entnahme von Gas- und/oder Öl- und/oder Wasser- und/oder Feststoffproben im Bohrbetrieb
DE3926787A1 (de) Verfahren und vorrichtung zum einbringen und verankern eines zugpfahls
AT522402B1 (de) Verfahren und Vorrichtung zum Bohren von Löchern in Boden- oder Gesteinsmaterial
EP2850284A1 (fr) Dispositif pour forer et pour mettre en place des boulons
EP0315743B1 (fr) Méthode pour réaliser un tunnel ou une galerie et machine de forage de tunnel pour la mise en oeuvre de la méthode
AT407895B (de) Verfahren und einrichtung zum bohren und auskleiden von bohrlöchern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20040331

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: SI

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BUECHEL, KAMINSKI & PARTNER PATENTANWAELTE ESTABLI

REF Corresponds to:

Ref document number: 50204631

Country of ref document: DE

Date of ref document: 20060302

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20060720

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: "ALWAG" TUNNELAUSBAU GESELLSCHAFT MBH

Free format text: TECHMO ENTWICKLUNGS- UND VERTRIEBS GMBH#HAUPTSTRASSE 52#8753 FOHNSDORF (AT) -TRANSFER TO- "ALWAG" TUNNELAUSBAU GESELLSCHAFT MBH#WAGRAM 49#4061 PASCHING (AT)

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: "ALWAG" TUNNELAUSBAU GESELLSCHAFT MBH

Free format text: "ALWAG" TUNNELAUSBAU GESELLSCHAFT MBH#WAGRAM 49#4061 PASCHING (AT) -TRANSFER TO- "ALWAG" TUNNELAUSBAU GESELLSCHAFT MBH#WAGRAM 49#4061 PASCHING (AT)

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20091113

Year of fee payment: 8

Ref country code: DE

Payment date: 20091119

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20101118

Year of fee payment: 9

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50204631

Country of ref document: DE

Effective date: 20110601

Ref country code: DE

Ref legal event code: R119

Ref document number: 50204631

Country of ref document: DE

Effective date: 20110531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110531

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 307265

Country of ref document: AT

Kind code of ref document: T

Effective date: 20121126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121126