EP0002160B1 - Dispositif de forage de trous dans le sol - Google Patents

Dispositif de forage de trous dans le sol Download PDF

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Publication number
EP0002160B1
EP0002160B1 EP78400189A EP78400189A EP0002160B1 EP 0002160 B1 EP0002160 B1 EP 0002160B1 EP 78400189 A EP78400189 A EP 78400189A EP 78400189 A EP78400189 A EP 78400189A EP 0002160 B1 EP0002160 B1 EP 0002160B1
Authority
EP
European Patent Office
Prior art keywords
casing
hammer
cutting
edge
eccentric
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
Application number
EP78400189A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0002160A1 (fr
Inventor
Pierre Stenuick
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.)
STENUICK FRANCE
Original Assignee
STENUICK FRANCE
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 STENUICK FRANCE filed Critical STENUICK FRANCE
Publication of EP0002160A1 publication Critical patent/EP0002160A1/fr
Application granted granted Critical
Publication of EP0002160B1 publication Critical patent/EP0002160B1/fr
Expired 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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/265—Bi-center drill bits, i.e. an integral bit and eccentric reamer used to simultaneously drill and underream 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
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives

Definitions

  • the present invention relates to a device for drilling holes in the ground, in particular in unconsolidated terrain.
  • non-consistent layers of various materials can occur at different depths and close towards the drilled hole.
  • Hard areas can occur at different depths; they require percussion to be drilled.
  • the different layers can be wet. see even submerged.
  • a drilling member which consists of a pneumatic hammer with a downhole percussion. Compressed air is transmitted to the hammer via extension tubes. We equip this hammer with a cutter. An external tabage maintains the walls of the hole, the outside diameter of this casing being slightly less than the diameter drilled.
  • This tubing is driven into the hole at the same penetration speed as the drilling member thanks to a thrust controlled by a regulator and a rotational movement in the opposite direction to that of the drilling member.
  • the outer casing determined with the drilling member an annular space through which the exhaust air drives the drilling sediments out of the hole. To facilitate the ascent of the sediments, they can be liquefied by means of water injected at the bottom of the hole by a circuit completely independent of that of the compressed air supply, and this up to the lower end of the hammer .
  • an eccentric cutter is often used.
  • the eccentric part of the cutter is mobile, the reaction being taken up by the upper part of the cutter.
  • a sleeve which can rotate around a rod secured to the cutting edge.
  • the device of the invention proposes to overcome all the aforementioned drawbacks.
  • the connection of the extension tubes with the hammer is carried out by means of a helical telescopic connection, the telescopic stroke corresponding to a relative rotation of the hammer-bit assembly by 180 °;
  • the telescopic helical connection carries, on the part linked to the extension tubes and fixed with respect to these extension tubes, a tube which comes to cover the hammer-cutting assembly while leaving sufficient space for the passage of drilling sediments between the tube and the casing, and which carries a decentering lug; so that, when the telescopic helical connection is in the retracted position, the eccentric part of the cutter is placed in a position diametrically opposite to the lug, which corresponds to the working position, and when the telescopic helical connection is in position developed, the eccentric part of the cutter is placed below the lug, which corresponds to the extraction position.
  • the device according to the invention comprises an off-center element independent of both the casing and the cutting edge. This element does not increase the weight of the cutter and leaves sufficient passage for the passage of drilling sediments between the casing and the hammer-cutter assembly. In addition, this device provides a completely free passage inside the casing when the hammer-bit assembly is removed.
  • the striking surface of the cutting edge is inclined relative to the striking axis hammer, which results in moving the center of gravity of the cutter towards the outside of the hole; the weight of the cutter thus tends to drive it towards the outside of the hole and to contribute to keeping it in the eccentric position during drilling.
  • FIG. 1 shows an embodiment of the device according to the invention, the telescopic connector being in the retracted position, which corresponds to the working position of the hammer.
  • Figure 2 is a bottom view of the device of Figure 1.
  • Figure 3 shows the device of Figure 1, the telescopic connector being in the developed position, which corresponds to the position of extraction of the drilling member.
  • FIG. 4 is a bottom view of the device of FIG. 3.
  • the drilling device shown in the figures comprises a hammer 1 fitted with a cutter 2.
  • This hammer 1 operates with compressed air which is transmitted to it by elongate tubes 3.
  • An external casing 4 maintains the walls of the hole 5.
  • the casing is driven in the hole 5 at the same speed of penetration as the drilling member thanks to a thrust controlled by a regulator not shown and to a rotational movement in the opposite direction to the direction of rotation of the drilling member.
  • Arrows 6 and 7 show the direction of the rotational movement of the drilling member and of the casing, respectively. 4. It is possible to have either separate motors for the two movements, or a motor with two concentric output shafts rotating in opposite directions. These engines are not shown.
  • the casing 4 determines with the drilling member a space through which the exhaust air drives out the drilling sediments, as indicated by arrow 8.
  • the outside diameter of the casing 4 is less than the diameter of the drilled hole because the cutter 2 is eccentric.
  • This telescopic connector 9 comprises a decentering lug 10 of the hammer-cutter assembly, fixed on a lug holder tube 11 which comes cap the hammer 1.
  • This pin holder tube 11 is fixed to the part of the connector 9 which is linked to the elongate tubes 3.
  • the telescopic stroke corresponds to a relative rotation of 180 °, so that, when the connector is in the retracted position, which corresponds to the working position of the drilling member ( Figure 1), the eccentric part of the cutter 2 either diametrically opposite the lug 10, and, when the connector is in the developed position, which corresponds to the position of extraction of the drilling member (FIG. 3), the eccentric part of the cutter 2 is placed below lug 10.
  • the invention can be applied to more sophisticated drilling devices, for example comprising a fluid injection circuit at the bottom of the hole completely independent of that of the compressed air supply, this fluid having for its purpose to facilitate the rise of sediments.

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)
EP78400189A 1977-11-21 1978-11-17 Dispositif de forage de trous dans le sol Expired EP0002160B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7734849A FR2409373A1 (fr) 1977-11-21 1977-11-21 Dispositif de forage de trous dans le sol, comportant un marteau pneumatique equipe d'un taillant excentre
FR7734849 1977-11-21

Publications (2)

Publication Number Publication Date
EP0002160A1 EP0002160A1 (fr) 1979-05-30
EP0002160B1 true EP0002160B1 (fr) 1980-09-03

Family

ID=9197816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78400189A Expired EP0002160B1 (fr) 1977-11-21 1978-11-17 Dispositif de forage de trous dans le sol

Country Status (9)

Country Link
US (1) US4183415A (enExample)
EP (1) EP0002160B1 (enExample)
JP (1) JPS54106001A (enExample)
BR (1) BR7807599A (enExample)
CA (1) CA1098895A (enExample)
DE (1) DE2860155D1 (enExample)
ES (1) ES475233A1 (enExample)
FR (1) FR2409373A1 (enExample)
IT (1) IT1109631B (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924392C2 (de) * 1979-06-16 1982-09-23 Brückner Grundbau GmbH, 4300 Essen Bohrvorrichtung zum Überlagerungsbohren
DE2924393C2 (de) * 1979-06-16 1983-06-23 Brückner Grundbau GmbH, 4300 Essen Bohrvorrichtung zum Überlagerungsbohren
DE3024102C2 (de) * 1980-06-27 1982-09-23 Ing. Günter Klemm, Spezialunternehmen für Bohrtechnik, 5962 Drolshagen Exzenter-Bohrvorrichtung
SE454196C (sv) * 1983-09-23 1991-11-04 Jan Persson Jord- och bergborrningsanordning foer samtidig borrning och infodring av borrhaalet
FR2596803B1 (fr) * 1986-04-02 1988-06-24 Elf Aquitaine Dispositif de forage et cuvelage simultanes
SE460300B (sv) * 1986-10-03 1989-09-25 Loevab Loef Och Oestlund Ab Roterbart borrverktyg med upprymningsdel till en saenkborrmaskin
JPH0617578B2 (ja) * 1987-05-12 1994-03-09 株式会社横山基礎工事 互層地盤における竪孔掘削工法
US4867255A (en) * 1988-05-20 1989-09-19 Flowmole Corporation Technique for steering a downhole hammer
JPH089863B2 (ja) * 1991-08-14 1996-01-31 株式会社エヌ、アイ、テイ 全角度地盤改良体造成工法及びその装置
DE4211059C1 (enExample) * 1992-04-02 1993-07-08 Nikolaus 6624 Grossrosseln De Meier
FI111408B (fi) * 1998-11-04 2003-07-15 Numa Tool Co Menetelmä ja laite uppoporauksessa
US20110214918A1 (en) * 2007-08-21 2011-09-08 Keck Joshua N Excavation Apparatuses and Methods
DE102008028997B4 (de) 2008-06-20 2012-03-01 Dr. Sven Becker und Dr. Michael Bahns GbR (vertretungsberechtigter Gesellschafter: Dr. Sven Becker, 30655 Hannover) Bohrverfahren und Bohrgerät zur Herstellung eines Bohrlochs in Erde und Gestein
IT1391458B1 (it) * 2008-10-17 2011-12-23 Dalla Gassa Srl Sistema di perforazione per martello fondo foro a funzionamento eccentrico
EP2597249B1 (de) * 2011-11-24 2014-09-10 Bauer Spezialtiefbau GmbH Bohrgerät und Verfahren zum Erstellen einer vertikalen Bohrung
CN103114807A (zh) * 2013-01-22 2013-05-22 中交天津港湾工程研究院有限公司 潜孔钻机偏心钻进成孔方法
AU2013405864B2 (en) 2013-11-22 2017-03-02 Halliburton Energy Services, Inc. Shock tool for drillstring
CN104018781B (zh) * 2014-06-13 2017-02-15 武穴市金箭机械有限责任公司 一种对称式双偏心块扩孔钻头
EP3336301B1 (de) * 2016-12-19 2023-09-13 BAUER Maschinen GmbH Drehbohrwerkzeug und verfahren zum erstellen einer bohrung
CN108999601B (zh) * 2018-07-26 2021-04-13 中国石油天然气股份有限公司 一种化学驱分注井分层流量调配方法
JP7705121B2 (ja) * 2021-10-05 2025-07-09 日特建設株式会社 二重管削孔装置、及び二重管削孔装置による削孔方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB269922A (en) * 1927-04-22 1928-02-09 Jan Frank Improvements in bore-hole apparatus
US1858926A (en) * 1928-03-27 1932-05-17 Herbert E Grau Oil tool device
US1996132A (en) * 1932-05-11 1935-04-02 Clinton L Walker Deep well drilling and coring system
US2754086A (en) * 1954-10-18 1956-07-10 Kenneth A Summers Torque and weight control apparatus
FR1287554A (fr) * 1961-02-02 1962-03-16 Procédé et tête foreuse permettant d'élargir, à leur partie inférieure, des forages de diamètre constant pratiqués dans le sol
US3230740A (en) * 1963-10-16 1966-01-25 Fred K Fox Drill string shock absorber and vibration dampener
BE670646A (enExample) * 1965-10-07
FR1514485A (fr) * 1967-02-24 1968-02-23 Skanska Cementgjuteriet Ab Perfectionnement aux foreuses de profondeur à fleurets excentriques
BE750586A (fr) * 1969-05-30 1970-11-03 Klemm Bohrtech Engin de foration pour terrains de recouvrement, dit "wagon- drill" et procede pour son utilisation
SE346354B (enExample) * 1970-11-27 1972-07-03 Atlas Copco Ab
US3870114A (en) * 1973-07-23 1975-03-11 Stabilator Ab Drilling apparatus especially for ground drilling
JPS5613433Y2 (enExample) * 1977-03-07 1981-03-28

Also Published As

Publication number Publication date
CA1098895A (fr) 1981-04-07
EP0002160A1 (fr) 1979-05-30
BR7807599A (pt) 1979-07-24
FR2409373B1 (enExample) 1982-10-29
IT7869659A0 (it) 1978-11-21
ES475233A1 (es) 1979-04-01
IT1109631B (it) 1985-12-23
US4183415A (en) 1980-01-15
DE2860155D1 (en) 1980-12-11
FR2409373A1 (fr) 1979-06-15
JPS54106001A (en) 1979-08-20
JPS6151117B2 (enExample) 1986-11-07

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