US3848683A - Method and means for drilling - Google Patents

Method and means for drilling Download PDF

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Publication number
US3848683A
US3848683A US00328631A US32863173A US3848683A US 3848683 A US3848683 A US 3848683A US 00328631 A US00328631 A US 00328631A US 32863173 A US32863173 A US 32863173A US 3848683 A US3848683 A US 3848683A
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United States
Prior art keywords
drilling
casing tube
sleeve
centering
drill
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Expired - Lifetime
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US00328631A
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English (en)
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J Persson
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Atlas Copco AB
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Atlas Copco AB
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    • 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
    • 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
    • E21B10/64—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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure
    • 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
    • E21B21/002—Down-hole drilling fluid separation 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
    • 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
    • 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

  • ABSTRACT A method and a means for driiling'in which a drilling tool is adapted to drill and to ream a flushed hole in advance of trailing casing tube means while flushing medium is returned via the casing tubes.
  • the invention relates generally to a method and a means for rotary drilling with or without the assistance of impacts. More particularly the invention relates to drilling of the above character by means of a drilling tool adapted to drill and to ream a hole in advance of casing tube means which are passed by drill rod means for carrying, rotating and supplying flushing medium to the drilling tool, the drilling particles produced during drilling being removed by the flushing medium through the casing tube means.
  • a disadvantage here is that for example eccentrically disposed cutting edges on the drilling tool, irregularities in the soil, slanting striking surfaces on stone obstacles, and the feeding force applied to the drill rod means cause the rear end thereof during rotation of the tool tosway around and to work as a particle mill against the inner wall of the casing tube.
  • the crushing zone thus established within the mouth of the casing tube tends to produce rapid wear and failure.
  • Another important object in the above stated type of drilling is to improve generally the flushing of the hole during drilling in order to avoid disturbances in the drilling performance.
  • an improved drilling means of the type incorporating a rotatable drilling tool adapted to drill a hole in advance of trailing casing tube means which are passed by rotatable drill rod means for carrying, rotating, and supplying flushing medium to said drilling tool, the drilling particles produced during drilling being removed by said flushing medium via said casing tube means, wherein the improvement comprises centering means on the rear portion of said drilling tool having centering surface means thereon on a diameter chosen for sliding cooperation with the interior of said casing tube means, and a cylindrical strainer body on said drilling tool forwardly of said centering means and having a diameter smaller than said centering surface means thereof for providing at the mouth of said casing tube means an annular slot therebetween and between said strainer body through which slot said flushing medium during removal is permitted to enter into said casing tube means, and bypass passage means associated with said centering means for conducting flushing medium issuing from said slot rearwardly past said surface means.
  • FIG. 5 is a section on the line 55 in FIG. 3.
  • FIG. 5 is a section on the line 55 in FIG. 3.
  • FIG. 6 shows partly in section an enlarged side view of a modified embodiment of the drilling tool and the lower portion of the casing tube and drill rod means in FIG. 2.
  • FIG. 7 is a front end view of FIG. 6.
  • FIG. 8 shows the drilling tool in FIG. 6 during retraction through the easing tube means.
  • FIG. 1 On a tracked drilling wagon in FIG. 1 is adjustably supported a drill boom 2 which in turn carries a drilling means 3 pivotally and adjustably in two planes perpendicular to one another.
  • the drilling means 3 comprises a feed bar 4 and a feed motor 5 which over a chain, not
  • the impact motor 6 can displace an impact motor 6 to and fro along the feed bar 4.
  • the impact motor 6 is associated with a rotation motor 7 which is coupled for rotating a shank adapter 8, the latter being inserted with the rear end thereof into the impact motor 6 to receive impacts therefrom.
  • the drill boom 2 carries a winch 10 which by a wire 11 extended over sheaves 12, 13 on the feed bar 4 is connected to a tube lifter 14.
  • a clamping ring By means of a clamping ring, not shown, the lifter 14 can be fixed to a casing tube means or string 16.
  • a ground stud l8 and a casing tube guide 17 On the forward end of the feed bar 4 is fixed a ground stud l8 and a casing tube guide 17. The latter centralizes the casing tube means 16 axially slidably and may when need arises be fastened thereagainst in the manner of a clamping ring for gripping or braking purposes.
  • the casing tube lifter 14 can be moved up and down along the feed bar 4 by the aid of the winsch 10 partly when it is necessary to retire or draw out the casing tube means 16, partly for lifting and positioning new casing tube sections for purposes of extending string of casing tube means by welding or threading.
  • a string 20 of extension drill rod means is at the upper end thereof fastened by threads to the shank adapter 8, extends through the casing tube means 16 and carries at the lower end thereof a drilling tool with a drill bit 21 thereon concentric with the drill rod means.
  • the centric drill bit may be given a diameter larger than the casing tube means 16. In such case drilling is performed up to the trench or cavity without retracting the drill bit.
  • the drilling tool is preferably made as disclosed in Swedish Pat. No. 346.354.
  • FIG. 3 comprises a turnable eccentric sleeve 22 provided with reamer cutting edges 9 thereon and fitting tumably on an eccentric middle section of a shaft portion 27 which is made integral with the centric drill bit 21.
  • the sleeve 22 is turned relative to the drill bit 21 into abutting relationship against a lug l9 thereon so as to dispose the reamer edges 9 in front of the casing tube means 16.
  • a flushing tube 23, FIGS. 4 and 5 extends coaxially through the impact motor 6 and supplies flushing medium, for example compressed air or water, to a passage 24 in the adapter 8, the rods in the drill rod means 20, and in the drilling tool for flushing the cutting edges thereof. It is preferred to adapt so called foam flushing provided by compressed air intermixed with and carrying therewith a foamed liquid composition.
  • the flushing medium for the formation of which any suitably qualified conventional foam forming composition may be used is supplied to the flushing tube 23 via a hose.
  • an inner annular groove 22 supplied with flushing medium from the passage 24 through a cross bore 24 in the eccentric section of shaft 27. From the groove 22 flushing medium is passed on via a bore 22" in the sleeve 22 to flush the reamer edges 9.
  • Another bore 22 in the sleeve 22 supplies flushing medium from the groove 22 to flush the space adjacent the lug 19 of the bit 21 in order to always assure turnability of the sleeve 22 during operation.
  • a further bore 24 in the eccentric section of shaft 27 supplies flushing medium for flushing therear impact receiving surface of sleeve 22.
  • the drilling tool carries at the rear end thereof a circularly cylindrical strainer body 25 which is provided with an interior bore 26 and fits coaxially around the shaft portion 27 of the drill bit 21.
  • a coupling sleeve 28, which may be integral with or made separate from the strainer body 25, is fixed by threads coaxially onto the shaft portion 27 and keeps the strainer body 25 in place against a shoulder on the eccentric middle portion of the shaft portion 27.
  • the strainer body 25 has a reduced diameter such as to provide a peripheral annular slot 30 between the strainer body 25 the forward end or mouth of the casing tube means 16.
  • the width of the slot 30 may generally be in the order of 1 3 millimeters and is preferably chosen about 2 mm.
  • the strainer body 25 is accurately centered in the casing tube string by the aid of a centering means in FIG. 3 provided by the adjacent coupling sleeve 28.
  • the centering may be assisted by further similar coupling sleeves 31, which by means of threads are adapted to keep together the separate extension rods of the drill rod means 20.
  • the centering coupling sleeves 28, 31 are provided with helically extending guiding ribs 32, 33 having outer part-cylindrical centering surface means thereon.
  • the ribs 32, 33 run in pairs axially around the coupling sleeves 28, 31 and have a total wrap angle which is sufficient for slidably guiding the coupling sleeves 28, 31peripherally on close center and in engagement with the surrounding casing tube means 16.
  • the coupling sleeves 28 may be provided with a cross bore 34 for supplying additional flushing medium from the passage 24 of the string 20 to the bypass passage means provided by the spaces between the ribs 32, 33 and thence to the interior of the casing tube means 16.
  • the screwing motion of the guiding ribs 32, 33 during normal working rotation of the drilling tool causes the mixture of flushing medium and drilling particles to be screwed past the coupling sleeves 28, 31 up towards the upper end of the casing tube means 16.
  • casing tube means 16 carries at the upper end thereof a plug-like insert head 35 which in an inner bore 36 receives the flushing medium to be removed from the casing tube means 16. Further the flushing medium is deflected via a knee 37 into an emptying hose 38.
  • a central bore 40 with a seal 41 which is passed slidably by the extension rods of the drill rod means 20.
  • the shank adapter 8 is provided 'with a forward abutment face 42 by means of which the feeding movement of the impact motor 6 along the feed bar 4 and the impacts of the impact motor 6 are transmitted to the head 35 whereby the casing tube means 16 can be driven down together with and trailing immediately behind the drilling tool 21.
  • the rotation motor 7 rotates the shank adapter 8 together with the drill rod means 20. The latter rotate freely in the bore 40 so that the casing tube means 16 is driven down without rotation.
  • Extension of the casing tube means or string 16 is made by screwing-on or welding-on new casing tube sections which procedure is combined with simultaneous extension of the drill rod means or string 20 by screwing-on coupling sleeves and additional extension drill rods.
  • the feed bar 4 is provided with only a rotation motor 42.
  • a vibration generator 43 is associated with the head 44 of the casing tube means 16 in order to improve driving of the latter.
  • the head 44 may be clamped to the casing tube means 16 to serve as a tube lifter and is slidably moved along the feed bar 4 by the previously mentioned winch.
  • a conventional down-the-hole drill 45 which is centered in the casing tube means 16 by centering means provided as by guide ribs 46, 47 similar to the ones shown in FIG. 3 but sitting for example on the end cover pieces of the down-the-hole drill 45.
  • the drilling tool 21 is similar to the one shown in FIG. 3 with an impact receiving shank projecting non rotatably into the down-the-hole drill 45 and a strainer body 25 immediately in front of the latter at the mouth of the casing tube means 16.
  • the foremost centering means or guide ribs 46, 47 may be provided on the rear end of the drilling tool similarly to the ribs 32, 33 in FIG. 3 but in front of the impact receivingshank received in the down-the-hole drill 45.
  • the shank adapter 8 abuts against the head 44 for transmitting feeding motion thereto.
  • the shank adapter 8 also transmits rotary motion to the drill rod means 20 and to the down-the-hole drill 45.
  • the impact motor of the down-the-hole drill 45 is driven by flushing medium comprising compressed air with foamed or finely dispersed fluid additive, and the flushing medium is supplied via a flushing tube 23 through the rotation motor 42 and the inner passage of the drill rod means 20. Flushing medium expelled from the impact motor of the down-the-hole drill is used for flushing the drilling tool.
  • the mixture of flushing medium and drilling debris is sifted up through the accurately centralized slot in the mouth of the casing tube means 16 and then removed by continued flushing via the casing tube means.
  • the casing tube means 16 is reinforced by a thickened mouth portion 50 providing internally an upward annular driving shoulder 51.
  • the drill 45 has grooves and splines 52 forwardly thereon receiving the splined shank 53 of a cylindrical centering means 54.
  • the centering means 54 comprises forwardly thereon an integral strainer body 25 and is at the rear thereof slidably centered by a cylinder surface 55 in the mouth portion 50 with the strainer body 25 protruding therefrom and defining the sifting slot 30 therearound.
  • the centering means 54 has a flange 56 thereon forming a forwardly directed shoulder 57, which cooperates with the shoulder 51 so that the impacts of the down-the-hole drill can be transmitted to the casing tube means 16.
  • the vibration generator 43 in FIG. 2 may be omitted.
  • the flushing medium and debris mixture When the flushing medium and debris mixture has been sifted through the slot 30 it passes an annular groove 58 in the centering means 54 and then through a plurality of substantially axial bores 59 into the casing tube means 16 for elevation and removal by continued flushing. Additional flushing medium for increasing the flushing velocity in the casing tube means 16 may be added to the groove 58 via a bore 60 which in turn is supplied with flushing medium from a central passage 61 in the centering means 54.
  • the passage 61 receives the foam plus compressed air constituting the combined flushing and driving medium which is expelled from the impact motor of the drill 45 or internally'bypassed through the drill 45.
  • the passage 61 also communicates with the various flushing passages of the drilling tool described in more detail in connection with FIG. 3.
  • flushing medium entering through said slot is led rearwardly past said centering surfaces in bypassed relation to the sliding engagement thereof.
  • An improved drilling means of the type incorporating a rotatable drilling tool adapted to drill a hole in advance of trailing casing tube means which are passed by rotatable drill rod means for carrying, rotating, and supplying flushing medium to said drilling tool, the drilling particles produced during drilling being removed by said flushing medium via said casing tube means, wherein the improvement comprises a. centering means on the rear portion of said drilling tool having centering surface means of substantial axial width thereon on a diameter chosen for sliding engagement with an interior cylindrical portion of said casing tube means,
  • bypass passage means associated with said centering surface means for conducting flushing medium issuing from said slot rearwardly past said centering surface means in bypassed relation to the sliding engagement thereof.
  • a drilling means in which said drilling tool comprises a drill bit with an integral shaft portion coaxial therewith and in fixed coaxial engagement with said strainer body and centering means.
  • a drilling means in which said drilling tool comprises a sleeve mounted on said shaft between said strainer body and said drill bit, and reamer cutting edge means for said casing tube means, said cutting edge means being provided on said sleeve.
  • a drilling means in which said shaft has an eccentric portion and said sleeve is mounted on said eccentric portion of said shaft turnably between diametrically opposed positions, and peripherally spaced abutment means for said sleeve on said drill bit for defining said diametrically opposed positions, said abutment means maintaining said sleeve with said cutting edge means thereof respectively radially projected or retracted with respect to said strainer body.
  • a drilling means in which there are provided cooperating impact transmitting surfaces on said strainer body and said sleeve, one of the abutment means of said drill bit being slanted for urging the abutting surface of said sleeve against the abutting surface of said strainer body during appropriate rotation of said drilling tool.
  • said centering means comprises a coupling sleeve in threaded engagement with said drill rod means and said shaft portion, said centering surface means being disposed on helically extending guiding ribs defining said bypass passage means therebetween and disposed on and extending from said coupling sleeve with a suffis ciently large wrap angle so as to provide radial guidance of said coupling sleeve on center with the surrounding casing tube means.
  • a drilling means in which said centering means comprises a cylindrical body with said centering surface means provided cylindrically therearound, an annular groove between said cylindrical body and said strainer body, and bypass passage means for said flushing medium extending rearwardly from said groove through said cylindrical body.
  • a drilling means in which a splined impact receiving shank is provided integrally with said centering means, and a down-the-hole drill is disposed at the head of said drill rod means in said casing tube means for carrying, rotating, supplying flushing medium and impacting said drilling tool means by said shank.
  • a drilling means in which said casing tube means has an internal shoulder spaced rearwardly from the mouth thereof, and said centering means is provided with a shoulder thereon for impact transmitting cooperation with said internal shoulder in said casing tube means.
  • a drilling means in which said drilling tool comprises a drill bit having an integral rearwardly extending shaft portion, said rearwardly ex tending shaft portion of said drill bit being in axially fixed coaxial engagement with said strainer body, a sleeve mounted eccentrically on said shaft portion between said strainer body and said drill bit, and reamer cutting edges on said sleeve.
  • An improved drilling means of the type incorporating a rotatable drilling tool adapted to drill a hole in advance of trailing casing tube means which are passed by rotatable drill rod means for carrying, rotating, and supplying flushing medium to said drilling tool, the drilling particles produced during drilling being removed by said flushing medium via said casing tube means, wherein the improvement comprises a. a drill bit having a shaft which extends rearwardly therefrom,
  • a cylindrical strainer body disposed on the rear end of said shaft in coaxial relation to said drill bit, said strainer body protruding from the mouth of said casing tube means and having a diameter smaller than said mouth for providing an annular strainer slot between said strainer body and said casing tube means through which slot said flushing medium during removal is permitted to enter into said casing tube means, said strainer slot being dimensioned so as to block large size drilling particles from entering said casing tube means,
  • centering means in coaxial proximity rearwardly of said strainer body, said centering means having centering surface means of substantial axial width thereon on a diameter chosen for sliding engagement with an interior cylindrical portion of said casing tube means, and
  • bypass passage means associated with said centering surface means for conducting flushing medium issuing from said slot rearwardly past said centering surface means in bypassed relation to the sliding engagement thereof.
  • a drilling means in which said intermediate portion of said shaft is disposed eccentrically to said drill bit and said sleeve is mounted turnably thereon between diametrically opposed positions, and said drilling means including spaced abutment means on said drill bit for defining said positions of said sleeve, said abutment means maintaining said sleeve with said reamer cutting edge means thereof respectively radially projected or retracted with respect to said strainer body.
  • a drilling means in which there are provided cooperating axial faces on said strainer body and said sleeve for transmitting impacts therebetween, one of said abutment means of said drill bit being slanted for urging the abutting surface of said sleeve against the abutting surface of said strainer body during appropriate rotation of said drilling tool.
  • said centering means comprises a coupling sleeve adapted for threaded engagement with said drill rod means and said shaft portion, helically extending guiding ribs on said sleeve defining said bypass passage means therebetween, said centering surface means terminating said ribs in a radial direction, and said ribs defining a sufficiently large wrap angle for said surface means so as to provide close radial guidance of said coupling sleeve in sliding relation on center with the surrounding casing tube means.
  • a drilling means in which said centering means comprises a cylindrical body with said centering surface means provided cylindrically therearound, an annular groove between said cylindrical body and said strainer body, and bypass passage means for said flushing medium extending rearwardly from said groove through said cylindrical body.
  • a drilling means in which a splined impact receiving shank is provided integrally with said centering means, and a down-the-hole drill is disposed at the head of said drill rod means in said casing tube means for carrying, rotating, supplying flushing medium and impacting said drilling tool means by said shank.
  • a drilling means in which there is provided an internal shoulder in said casing tube means spaced rearwardly from the mouth thereof and said centering means is provided with a shoulder thereon for impact transmitting cooperation with said internal shoulder.
  • An improved drilling means of the type incorporating a rotatable drilling tool adapted to drill a hole in advance of trailing casing tube means which are passed by rotatable drill means for carrying, rotating, and supplying flushing medium to said drilling tool, the drilling particles produced during drilling being removed by said flushing medium via said casing tube means, wherein the improvement comprises a. a ring shoulder at the forward end mouth of said casing tube means, said mouth of said casing tube means being drill bit free,
  • drill bit means connected to and forwardly of said I cylindrical guide flange for drilling a hole in advance of said casing tube means.
  • a drilling means in which said drill bit means has a shaft which extends rearwardly from a drill bit to couple said drill bit to said cylindrical guide flange, and further comprising a cylin' drical strainer body disposed on the rear end of said shaft in coaxial relation to said drill bit, said strainer body protruding from the mouth of said casing tube means and having a diameter smaller than said mouth for providing an annular strainer slot between said strainer body and said casing tube means through which slot said flushing medium during removal is permitted to enter into said casing tube means, said strainer slot being dimensioned so as to block large size drilling particles from entering said casing tube means.
  • a drilling means according to claim 22 including a sleeve mounted on an intermediate portion of said shaft, and eccentrically disposed reamer cutting edge means on said sleeve.
  • a drilling means in which said intermediate portion of said shaft is disposed eccentrically to said drill bit and said sleeve is mounted tumably thereon between diametrically opposed positions, and said drilling means including spaced abutment means on said drill bit for defining said positions of said sleeve, said abutment means maintaining said sleeve with said reamer cutting edge means thereof respectively radially projected or retracted with respect to said strainer body.
  • a drilling means according to claim 20 including centering means in coaxial proximity rearwardly of said strainer body, said centering means having centering surface mean of substantial axial width thereon on a diameter chosen for sliding engagement with an interior cylindrical portion of said casing tube means.

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  • 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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
US00328631A 1972-02-10 1973-02-01 Method and means for drilling Expired - Lifetime US3848683A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7201588A SE377706B (de) 1972-02-10 1972-02-10

Publications (1)

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US3848683A true US3848683A (en) 1974-11-19

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US00328631A Expired - Lifetime US3848683A (en) 1972-02-10 1973-02-01 Method and means for drilling

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US (1) US3848683A (de)
JP (1) JPS5545718B2 (de)
AT (1) AT338727B (de)
AU (1) AU470516B2 (de)
BE (1) BE795205A (de)
BR (1) BR7300935D0 (de)
CA (1) CA977330A (de)
DE (1) DE2306397C3 (de)
FR (1) FR2171290B1 (de)
GB (1) GB1376094A (de)
IN (1) IN138695B (de)
IT (1) IT988112B (de)
SE (1) SE377706B (de)
ZA (1) ZA73708B (de)

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US4144942A (en) * 1976-08-30 1979-03-20 Nippon Concrete Industries Co., Ltd. Method of setting a pile without noise or vibration and apparatus therefor
US4196783A (en) * 1978-07-11 1980-04-08 Lofs Verkstads Ab Device for boring
EP0036847A2 (de) * 1980-03-26 1981-09-30 Sandvik Aktiebolag Bohrwerkzeug
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US4620600A (en) * 1983-09-23 1986-11-04 Persson Jan E Drill arrangement
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EP0221948B1 (de) * 1985-04-25 1989-03-15 VANCURA, Vladimir Bohrstiftanpassungsgerät
EP0358786A1 (de) * 1988-09-13 1990-03-21 Ing. G. Klemm Bohrtechnik GmbH Überlagerungsbohrvorrichtung
US4962822A (en) * 1989-12-15 1990-10-16 Numa Tool Company Downhole drill bit and bit coupling
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US5040621A (en) * 1989-04-05 1991-08-20 Uniroc Aktiebolag Flushing means for drilling tools
US5052503A (en) * 1989-04-05 1991-10-01 Uniroc Aktiebolag Eccentric drilling tool
EP0543140A2 (de) * 1991-11-21 1993-05-26 Gu Tiefbau Ag Bohrvorrichtung für den Tiefbau sowie Verfahren zum Herstellen von stabilisierenden Säulen oder ähnlichen Gebilden in Erdreich
US5259469A (en) * 1990-01-17 1993-11-09 Uniroc Aktiebolag Drilling tool for percussive and rotary drilling
US5360075A (en) * 1993-11-29 1994-11-01 Kidco Resources Ltd. Steering drill bit while drilling a bore hole
US5992548A (en) * 1995-08-15 1999-11-30 Diamond Products International, Inc. Bi-center bit with oppositely disposed cutting surfaces
EP1010815A1 (de) 1998-12-18 2000-06-21 Rautaruukki OYJ Verbindungsmuffe für ein Bohrrohr
US6471445B2 (en) * 2000-01-20 2002-10-29 Compagnie Du Sol Rotary displacement piling equipment
WO2003001022A1 (en) * 2001-06-26 2003-01-03 Sandvik Ab; (Publ) Rock drilling tool, a ring drill bit and an adapter for percussive drilling
WO2005031107A1 (de) * 2003-10-01 2005-04-07 Techmo Entwicklungs- Und Vertriebs Gmbh Verfahren und vorrichtung zum bohren von löchern in boden- oder gesteinsmaterial
US20060060386A1 (en) * 2004-09-23 2006-03-23 Reinhard Reich Pile boring tool for producing a pile bore
DE102008028997A1 (de) 2008-06-20 2010-01-21 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
CN102852457A (zh) * 2012-07-24 2013-01-02 威海市海泰起重机械有限公司 潜孔锤套管跟进钻机
WO2013065013A2 (en) * 2011-11-04 2013-05-10 Ocean Technologies Limited Drilling arrangement
CN103437715A (zh) * 2013-08-24 2013-12-11 张家口维克特机械有限公司 一种潜孔钻机滑架和钻臂快速俯仰机构
US9410379B2 (en) 2011-12-27 2016-08-09 National Oilwell DHT, L.P. Downhole cutting tool
US9612154B2 (en) * 2014-12-19 2017-04-04 Schlumberger Technology Corporation Method for diagnosing optical spectrometers of downhole tools
CN111577177A (zh) * 2020-04-22 2020-08-25 中煤科工集团西安研究院有限公司 井下气动冲击碎岩泡沫排渣的钻进装置和钻进方法
US11208852B2 (en) * 2017-11-02 2021-12-28 Bauer Spezialtiefbau Gmbh Auger arrangement
US11441360B2 (en) 2020-12-17 2022-09-13 National Oilwell Varco, L.P. Downhole eccentric reamer tool and related systems and methods

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DE2924392C2 (de) * 1979-06-16 1982-09-23 Brückner Grundbau GmbH, 4300 Essen Bohrvorrichtung zum Überlagerungsbohren
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CN115680497B (zh) * 2022-10-25 2024-05-07 天津大学 一种滤管与内芯钻杆可分离的快速打井装置及方法

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EP0036847A2 (de) * 1980-03-26 1981-09-30 Sandvik Aktiebolag Bohrwerkzeug
EP0100437A2 (de) * 1982-07-12 1984-02-15 Kenroc Tools Corporation Kombinierter Nutungs- und Bohrmeissel und Verfahren zum Bohren eines Sprengloches mit derartigen Meisseln
EP0100437A3 (de) * 1982-07-12 1985-08-14 Kenroc Tools Corporation Kombinierter Nutungs- und Bohrmeissel und Verfahren zum Bohren eines Sprengloches mit derartigen Meisseln
EP0106702A2 (de) * 1982-10-19 1984-04-25 Drumco Bohrmeisselanordnung mit längerer Lebensdauer
EP0106702A3 (de) * 1982-10-19 1986-02-05 Drumco Bohrmeisselanordnung mit längerer Lebensdauer
US4620600A (en) * 1983-09-23 1986-11-04 Persson Jan E Drill arrangement
EP0221948B1 (de) * 1985-04-25 1989-03-15 VANCURA, Vladimir Bohrstiftanpassungsgerät
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EP0358786A1 (de) * 1988-09-13 1990-03-21 Ing. G. Klemm Bohrtechnik GmbH Überlagerungsbohrvorrichtung
US5052503A (en) * 1989-04-05 1991-10-01 Uniroc Aktiebolag Eccentric drilling tool
US5040621A (en) * 1989-04-05 1991-08-20 Uniroc Aktiebolag Flushing means for drilling tools
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US4962822A (en) * 1989-12-15 1990-10-16 Numa Tool Company Downhole drill bit and bit coupling
US5259469A (en) * 1990-01-17 1993-11-09 Uniroc Aktiebolag Drilling tool for percussive and rotary drilling
EP0543140A2 (de) * 1991-11-21 1993-05-26 Gu Tiefbau Ag Bohrvorrichtung für den Tiefbau sowie Verfahren zum Herstellen von stabilisierenden Säulen oder ähnlichen Gebilden in Erdreich
EP0543140A3 (en) * 1991-11-21 1993-08-11 Gu Tiefbau Ag Drilling device for civil engineering and method for making stabilizing columns or similar structures in the ground
US5360075A (en) * 1993-11-29 1994-11-01 Kidco Resources Ltd. Steering drill bit while drilling a bore hole
US5992548A (en) * 1995-08-15 1999-11-30 Diamond Products International, Inc. Bi-center bit with oppositely disposed cutting surfaces
EP1010815A1 (de) 1998-12-18 2000-06-21 Rautaruukki OYJ Verbindungsmuffe für ein Bohrrohr
US6471445B2 (en) * 2000-01-20 2002-10-29 Compagnie Du Sol Rotary displacement piling equipment
WO2003001022A1 (en) * 2001-06-26 2003-01-03 Sandvik Ab; (Publ) Rock drilling tool, a ring drill bit and an adapter for percussive drilling
WO2005031107A1 (de) * 2003-10-01 2005-04-07 Techmo Entwicklungs- Und Vertriebs Gmbh Verfahren und vorrichtung zum bohren von löchern in boden- oder gesteinsmaterial
US20060060386A1 (en) * 2004-09-23 2006-03-23 Reinhard Reich Pile boring tool for producing a pile bore
DE102008028997A1 (de) 2008-06-20 2010-01-21 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
WO2013065013A2 (en) * 2011-11-04 2013-05-10 Ocean Technologies Limited Drilling arrangement
WO2013065013A3 (en) * 2011-11-04 2013-08-08 Ocean Technologies Limited Drilling arrangement
US9410379B2 (en) 2011-12-27 2016-08-09 National Oilwell DHT, L.P. Downhole cutting tool
CN102852457A (zh) * 2012-07-24 2013-01-02 威海市海泰起重机械有限公司 潜孔锤套管跟进钻机
CN102852457B (zh) * 2012-07-24 2014-04-23 威海市海泰起重机械有限公司 潜孔锤套管跟进钻机
CN103437715A (zh) * 2013-08-24 2013-12-11 张家口维克特机械有限公司 一种潜孔钻机滑架和钻臂快速俯仰机构
US9612154B2 (en) * 2014-12-19 2017-04-04 Schlumberger Technology Corporation Method for diagnosing optical spectrometers of downhole tools
US11208852B2 (en) * 2017-11-02 2021-12-28 Bauer Spezialtiefbau Gmbh Auger arrangement
CN111577177A (zh) * 2020-04-22 2020-08-25 中煤科工集团西安研究院有限公司 井下气动冲击碎岩泡沫排渣的钻进装置和钻进方法
US11441360B2 (en) 2020-12-17 2022-09-13 National Oilwell Varco, L.P. Downhole eccentric reamer tool and related systems and methods

Also Published As

Publication number Publication date
CA977330A (en) 1975-11-04
AT338727B (de) 1977-09-12
DE2306397A1 (de) 1973-08-16
GB1376094A (en) 1974-12-04
AU5177973A (en) 1974-10-17
BE795205A (fr) 1973-05-29
JPS4892201A (de) 1973-11-30
ZA73708B (en) 1973-10-31
FR2171290B1 (de) 1980-02-22
DE2306397C3 (de) 1980-04-17
BR7300935D0 (pt) 1973-09-13
IN138695B (de) 1976-03-13
IT988112B (it) 1975-04-10
AU470516B2 (en) 1974-10-17
DE2306397B2 (de) 1974-01-31
SE377706B (de) 1975-07-21
FR2171290A1 (de) 1973-09-21
JPS5545718B2 (de) 1980-11-19

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