EP0806543B1 - Dispositif de perçage pour le forage à percussion - Google Patents

Dispositif de perçage pour le forage à percussion Download PDF

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Publication number
EP0806543B1
EP0806543B1 EP97105661A EP97105661A EP0806543B1 EP 0806543 B1 EP0806543 B1 EP 0806543B1 EP 97105661 A EP97105661 A EP 97105661A EP 97105661 A EP97105661 A EP 97105661A EP 0806543 B1 EP0806543 B1 EP 0806543B1
Authority
EP
European Patent Office
Prior art keywords
drilling
drilling apparatus
hammer
drill
drill head
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
EP97105661A
Other languages
German (de)
English (en)
Other versions
EP0806543A1 (fr
Inventor
Jürgen Dipl.-Ing. Schmeer
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.)
GEISERT ENGINEERING GmbH
Original Assignee
GEISERT ENGINEERING 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 GEISERT ENGINEERING GmbH filed Critical GEISERT ENGINEERING GmbH
Publication of EP0806543A1 publication Critical patent/EP0806543A1/fr
Application granted granted Critical
Publication of EP0806543B1 publication Critical patent/EP0806543B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • 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
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor

Definitions

  • the invention relates to a drilling device for the percussive drilling by means of downhole hammer, especially for horizontal drilling according to the preamble of claims 1, 2.
  • the generic DE-A-27 17 717 discloses a rock drill bit, whose drill face in work terraces which is resolved from the center of the drill to the edge of the Surround the drill face towards each other, with the working terraces run concentrically to each other; a central Pilot terrace is one or more recutting terraces surrounded, which are all coaxial to the drilling axis.
  • the cutting pins point diagonally towards the latter arranged.
  • WO 9611323 A is also a concentric, terrace-like stepped boring head can be removed from its terraces project button-like elevations parallel to the axis, between which flush channels.
  • a tubular element with graduated Displacement head is horizontal from a launch gun like a tapered pile from an air powered one axially moving sliding piston in a vertical line Pit wall by compressed air with an average Driving speed of 1 m / h to 10 m / h driven.
  • the direction of advance can, for example, by means of a the earth missile's built-in probe via a radio frequency signal observed from above - but not influenced - become.
  • the drill heads can be in Adaptation to the soil conditions can be replaced - if the earth missile when entering the new soil type has not got stuck.
  • the drill head is designed as an eccentric or provided with a tax slope.
  • To form the eccentric is less than 180 ° part of the circumference covering a cross-section crescent-shaped formation and designed as a step.
  • the crown trim can also be arranged asymmetrically.
  • a drill head in which the Cross section of the steps through a desk-like sloping surface of the drill head - the inside of its cone casing lies - is reduced on one side. This sloping surface lies approximately parallel to a generatrix of the cone shell.
  • the Steps determined by the crown whose pins are also Tilt outward in the direction of advance.
  • the discharge of cuttings that cannot be displaced take place via Minutes of drilling that occur at each stage between the Carbide pins are located.
  • This drill bit allows the Use in soil classes 5 to 7.
  • Ratio of the diameter of the end plate to the diameter the chisel or drill tip from 6: 1 to 8: 1 - preferably about 7: 1 - proven.
  • the downhole hammer To enable a direction correction on the drill head, is the downhole hammer a radio transmitter of an external Assigned to the location system.
  • a radio transmitter of an external Assigned to the location system Through the described Drilling heads are created in connection with location systems - Radio transmitter in the drilling tool and carrying the Radio receiver - a controllable drilling system.
  • the drill head with the down-the-hole hammer - with simultaneous rotation - introduced By Interruption of rotation can cause the hole to run over the position of the control slopes or the eccentric to be influenced.
  • the position of the tax slope is from Station displayed. After the correction, the Rotation activated again.
  • the displacement drilling head according to the invention for down-the-mill hammers a drilling diameter of 80 to 300 mm can - depending on Down-the-hole hammer size - used up to floor class 6; this drilling system can usually with short Earth rockets used in displaceable soils replace.
  • the system In contrast to earth missiles, the system is also in Loose soil, sand or water-bearing layers can be used because the down-the-hole hammer has a stiff Drill pipe is connected to the drill and with a Driving force of up to 850 KN can be injected.
  • This feed force supports the powerful blows of the Percussion piston of the down-the-hole hammer, which the Displacing displacement core in the ground; thereby the rate of advance as well as the achievable Propulsion length is positively influenced.
  • a displacement boring head 10 is shown in FIG. 1 below Interposition of a tubular retaining cap 12 at the end at one - with the housing 14 one in particular not shown downhole hammer 16 for striking horizontal drilling connected - receiving shaft 18 with spline profile 20.
  • the housing 14 closes against the direction of advance x one by means of a threaded or hexagon connection 21 axially fixed rigid drill pipe 22, whichever can be extended.
  • This displaceable drilling head 10 which can be used for bore diameters between 80 and 300 mm up to soil class 6, is connected to the down-hole hammer 16 via the tubular retaining cap 12 on a connecting plate 24 and tapers in a longitudinal section stepwise from an end plate 26 via here eight step plates 27, 27 a to 27 g , the number of which depends on the drill head diameter d, to a chisel tip 28.
  • the disks 26, 27, 27 a to 27 g are parts of a one-piece crown body, that is to say molded onto one another, and their edges determine a construction cone, of which a generating line K is shown. Its cone tip defines an angle of approximately 40 °.
  • the axial height a of the end plate 26 corresponds to the axial heights b of the step plates 27, 27 a to 27 g .
  • the nine radial step widths i are the same and reduce the diameter d of the end plate 26 to the diameter n of the drill tip 28 in an example ratio of 7: 1.
  • the number of steps, step width i and step height a can change.
  • Fig. 3 shows a drill head 10 a , which is populated with hard metal pins 30; these form - here three - levels.
  • the axes B of the hard metal pins 30 are inclined at an angle of approximately 33 ° to the drill head axis A.
  • An air duct 32 runs in this, from which both a front duct 33 of smaller diameter axially and side ducts 34, which are inclined against the direction of advance x, extend.
  • the latter open into an annular console surface 36 which in turn is inclined towards the direction of advance x and serve to discharge the down-the-hole hammer air while at the same time supporting the discharge of non-displaceable cuttings.
  • the end plate 26 a is here - compared to that of Figures 1-- of double axial height a; From this end disk 26 a a crescent-like apex step 38 is formed, the radial step width i of which is continuously reduced on both sides of a line of symmetry G of the drill head cross-section up to a parallel Q which intersects the line of symmetry G at right angles to a horizontal straight line D in FIG. 5 ; whose distance t from that parallel Q corresponds approximately to the step width i.
  • the down-the-hole hammer 16 is used for Straight ahead with simultaneous rotation.
  • the course of the rotation can be determined by the rotational movement the setting of the eccentric described are influenced.
  • the radio transmitter 40 of a location system is in the drilling tool housed - the radio receiver becomes during the day carried and shows except the position of the eccentric - or a tax inclined surface to be discussed - also the inclination and depth of the downhole hammer 16.
  • both the axial air duct 32 and a Continuing axially offset air duct 42 dashed hinted at; the latter runs outside of that Radio transmitter 40.
  • the displacement boring head 11 a of FIGS. 6, 7 is equipped with a control inclined surface 44 starting from the end plate 26; the latter appears in the side view of FIG. 6 as a straight line which is inclined at an angle w of approximately 22 ° to the drill head axis A and which intersects 27 g in the region of the front step disc. This straight line lies within the conical jacket K described in FIG. 1.
  • the control inclined surface 44 here assumes the function described above for the position of the eccentric.
  • the drilling head 11b serves on the one hand in the manner described Influencing the straight line. On the other hand, he commutes with direction correction up to approximately ⁇ 60 ° around the respective correction axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling Tools (AREA)

Claims (12)

  1. Dispositif de forage pour le forage à percussion au moyen de marteau burineur immergé dans le trou, en particulier pour le forage horizontal, avec une tête de forage (10, 10a, 11, 11a, 11b), à section transversale conique, depuis un disque d'extrémité (26), placé côté marteau, vers la pointe de trépan ou de foret (28), en plusieurs étagements (26, 27, 27a à 27g), ainsi qu'une garniture en couronne, disposée en au moins une face frontale, garniture constituée de tiges en métal dur ou analogue, les arêtes d'étagement déterminant une enveloppe conique (K), et la tête de forage, avec le marteau immergé dans le trou, est raccordée à un train de tiges ainsi que, le cas échéant, au moins à un canal d'écoulement s'étendant axialement dans celui-ci,
       caractérisé en ce qu'
       un appendice (38), à section transversale du genre d'un croissant et réalisé sous la forme d'étagement, est disposé autour d'une partie, faisant moins de 180°, de la périphérie.
  2. Dispositif de forage pour le forage à percussion au moyen de marteau burineur immergé dans le trou, en particulier pour le forage horizontal, avec une tête de forage (10, 10a, 11, 11a, 11b), à section transversale conique, depuis un disque d'extrémité (26), placé côté marteau, vers la pointe de trépan ou de foret (28), en plusieurs étagements (26, 27, 27a à 27g), ainsi qu'une garniture en couronne, disposée en au moins une face frontale, garniture constituée de tiges en métal dur ou analogue, les arêtes d'étagement déterminant une enveloppe conique (K), et la tête de forage, avec le marteau immergé dans le trou, est raccordée à un train de tiges ainsi que, le cas échéant, au moins à un canal d'écoulement s'étendant axialement dans celui-ci, caractérisé en ce que la section transversale des étagements (26, 27, 27a à 27g) est diminuée sur un côté, au moyen d'une face oblique (44), du genre pupitre, de la tête de forage (11a), située à l'intérieur de son enveloppe conique (K).
  3. Dispositif de forage selon la revendication 1, caractérisé en ce que l'appendice (38) du genre d'un croissant est délimité à chacune des deux extrémités à une minute de forage (46).
  4. Dispositif de forage selon la revendication 2, caractérise en ce que la face oblique (44) est parallèle à une génératrice de l'enveloppe conique (K).
  5. Dispositif de forage selon la revendication 1 ou 2, caractérisé en ce que les étagements (26, 27, 27a à 27g) sont déterminés par la garniture en couronne, dont les pointes (30) sont en plus inclinées vers l'extérieur dans la direction d'avancement (x).
  6. Dispositif de forage selon l'une des revendications 1 à 5, caractérisé par un rapport, entre le diamètre (d) du disque d'extrémité (26) et le diamètre (n) de la pointe de trépan ou de foret, d'environ 7 : 1 à 8 : 1.
  7. Dispositif de forage selon l'une des revendications 1 à 6, caractérisé en ce que le nombre des étagements (26, 27, 27a à 27g) augmente avec l'augmentation du diamètre de forage.
  8. Dispositif de forage selon la revendication 1, 2 ou 7, caractérisé par neuf étagements (26, 27, 27a à 27g) avant la pointe de trépan ou de foret (28).
  9. Dispositif de forage selon l'une des revendications 1 à 2, caractérisé en ce que le disque d'extrémité (26) est relié à une plaque de raccordement (24) de plus petit diamètre, à l'encontre de la direction d'avancement (x), au moyen d'une face de pupitre (36) en forme d'anneau.
  10. Dispositif de forage selon les revendications 5 et 9, caractérisé en ce que l'inclinaison de la face de versant (36) correspond à peu prés à l'inclinaison des tiges en métal dur (30).
  11. Dispositif de forage selon au moins l'une des revendications 1 à 10, caractérisé en ce qu'un émetteur radio (40) d'un système de localisation externe est associé au marteau burineur immergé dans le trou (16) et ou il est réalisé sous la forme d'excentrique.
  12. Dispositif de forage selon au moins l'une des revendications 1 à 11, caractérisé en ce que la garniture en couronne (30) est disposée de façon asymétrique.
EP97105661A 1996-05-07 1997-04-05 Dispositif de perçage pour le forage à percussion Expired - Lifetime EP0806543B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19618298 1996-05-07
DE19618298A DE19618298A1 (de) 1996-05-07 1996-05-07 Bohrvorrichtung für das schlagende Bohren

Publications (2)

Publication Number Publication Date
EP0806543A1 EP0806543A1 (fr) 1997-11-12
EP0806543B1 true EP0806543B1 (fr) 2001-01-24

Family

ID=7793587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105661A Expired - Lifetime EP0806543B1 (fr) 1996-05-07 1997-04-05 Dispositif de perçage pour le forage à percussion

Country Status (3)

Country Link
EP (1) EP0806543B1 (fr)
AT (1) ATE198923T1 (fr)
DE (2) DE19618298A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1165929A1 (fr) 1999-03-03 2002-01-02 Earth Tool Company L.L.C. Procede et appareil de forage dirige
CN101363307B (zh) * 2000-03-03 2017-05-31 维米尔制造公司 在多种混合条件下进行定向钻孔的方法和装置
DE10024433A1 (de) 2000-05-19 2001-11-29 Hawera Probst Gmbh Gesteinsbohrer
DE10101708B4 (de) * 2001-01-15 2006-02-09 Tracto-Technik Gmbh Verfahren zum Felsmeißeln
DE10122299C2 (de) * 2001-05-08 2003-11-13 Tracto Technik Verfahren zum Felsbohren
WO2003076760A2 (fr) * 2002-03-08 2003-09-18 Shell Internationale Research Maatschappij B.V. Systeme orientable de penetration du sol
BE1016899A3 (nl) * 2005-12-20 2007-09-04 Geothermie J Vercruysse Werkwijze voor het aanbrengen van een bodemwarmtewisselaar in een holte in een bodem en bodemwarmtewisselaar hiervoor bestemd.
US8196677B2 (en) 2009-08-04 2012-06-12 Pioneer One, Inc. Horizontal drilling system
DE102010050244B4 (de) 2010-10-30 2013-10-17 Technische Universität Bergakademie Freiberg Meißeldirektantrieb für Werkzeuge auf Basis einer Wärmekraftmaschine
DE102011012362A1 (de) * 2011-02-24 2012-08-30 Igor D. Shaposhnikov Kegelbohrstange

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558842A1 (de) * 1975-12-27 1977-07-07 Paul Schmidt Selbstgetriebenes pneumatisches rammbohrgeraet, insbesondere fuer erdbohrungen
DE2717717A1 (de) * 1977-04-21 1978-10-26 Wallram Hartmetall Gmbh Gesteinsbohrkrone
SE8901199L (sv) * 1989-04-05 1990-10-06 Uniroc Ab Excentrisk borrkrona
US5322391A (en) * 1992-09-01 1994-06-21 Foster-Miller, Inc. Guided mole
DE4309387C2 (de) * 1993-03-23 1999-04-08 Terra Ag Tiefbautechnik Rammbohrgerät
FI103430B (fi) * 1994-10-05 1999-06-30 Valto Ilomaeki Poralaite ja menetelmä reiän poraamiseksi useaan erilaatuiseen maaperä än

Also Published As

Publication number Publication date
EP0806543A1 (fr) 1997-11-12
DE19618298A1 (de) 1997-11-13
DE59702945D1 (de) 2001-03-01
ATE198923T1 (de) 2001-02-15

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