[go: up one dir, main page]

WO1991011646A1 - Methode et appareil de creusement de tunnels pour installations d'utilite publique - Google Patents

Methode et appareil de creusement de tunnels pour installations d'utilite publique Download PDF

Info

Publication number
WO1991011646A1
WO1991011646A1 PCT/US1991/000469 US9100469W WO9111646A1 WO 1991011646 A1 WO1991011646 A1 WO 1991011646A1 US 9100469 W US9100469 W US 9100469W WO 9111646 A1 WO9111646 A1 WO 9111646A1
Authority
WO
WIPO (PCT)
Prior art keywords
conduit
drill
advancing
longitudinal axis
motor
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.)
Ceased
Application number
PCT/US1991/000469
Other languages
English (en)
Inventor
Howard E. Johnson
Gregory R. Gilchrist
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1991011646A1 publication Critical patent/WO1991011646A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/02—Fluid rotary type drives
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
    • 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
    • E21B7/067—Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub
    • 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 present invention generally relates to tunneling and boring underground, and more particularly relates to a method and apparatus for tunneling and boring underground for the installation of utility cables, conduits and the like.
  • the traditional method of installing utility cables and conduits includes digging a trenc ⁇ , laying the conduit or cable in the trench and backfilling the trench with soil.
  • this technique can be impractical or highly undesirable.
  • the above technique disrupts traffic flow because of the necessary interruption in the road surface by the trench.
  • it is desirable to install utility cable or conduit without disturbing the upper surface of the ground includes digging a trenc ⁇ , laying the conduit or cable in the trench and backfilling the trench with soil.
  • U.S. Patent 4,026,371 to Takada et al discloses a system for laying small diameter pipes in which a casing is fitted with a pilot head and is hydraulically forced through the ground to create a tunnel.
  • the pilot head includes a clinometer target and a clinometer is used for detecting the position and orientation of the head and the head is pivotally mounted so that the direction of the casing can be altered.
  • the clinometer requires an unobstructed line of sight with the target, the amount of alteration of direction possible with this arrangement is generally limited to the diameter of the passageway.
  • U.S. Patent No. 4,856,600 to Baker et al. addresses this problem and discloses a drilling system utilizing a cutting head having water nozzles, with the cutting head being mounted at the leading end of a thrust conduit.
  • the thrust conduit is pushed through the soil with a constant thrust force and as it is pushed through the soil, the nozzle head rotates in a modulated manner to spend more time directing water spray at soil in a given direction to effect a movement of the leading end in that direction.
  • a water cutting technique such as that taught by Baker et al. may have a certain applicability in providing a steering capability, it generally fails to progress quickly through hard clays or rock.
  • the present invention comprises an apparatus for forming an underground tunnel for the reception of cable, conduits and the like without digging a continuous trench.
  • the apparatus includes an elongated, substantially continuous conduit having a leading end and a longitudinal axis.
  • a drill motor is mounted to the leading end of the continuous conduit and a drill bit is coupled to the drill motor, with the drill bit being coupled at a small angle relative to the longitudinal axis of the conduit.
  • the drill bit furthermore is oriented relative to the conduit to define
  • the apparatus also includes means for changing the orientation of the drill bit relative to the longitudinal axis to define a second drilling direction and means for powering the drill motor to cause rotation of the drill bit. Further means are provided for advancing the conduit along the tunnel.
  • the means for changing the orientation of the drill bit relative to the longitudinal axis comprises a coupling member which allows the drill bit to be rotated about the longitudinal axis while maintaining the small angle between the drill bit and the longitudinal axis.
  • FIG. 1 is a perspective illustration of a tunneling apparatus in a preferred form according to the present invention.
  • Fig. 2 is a perspective illustration of a portion of the tunneling apparatus of Fig. 1, with some elements partially removed for clarity of illustration.
  • Fig. 3A is a schematic illustration of a portion of the tunneling apparatus of Fig. 1, showing the apparatus being used to tunnel under a roadway.
  • Fig. 3B is a schematic illustration of a portion of the tunnelling apparatus of Fig. 3A.
  • Fig. 4 is a partially cut away perspective illustration of a portion of the tunneling apparatus of
  • SUBSTITUTE SHEET Fig. 5 is a partially cut away side view of a portion of the tunneling apparatus of Fig. 1.
  • Figs. 6A and 6B are perspective illustrations showing two forms of a portion of the tunneling apparatus 5 of Fig. 1.
  • FIG. 1 shows a tunneling apparatus 20
  • Tunneling apparatus 20 includes a movable support frame indicated generally at 21, including a forward tongue 22, as for towing.
  • Four road wheels 23 are rotatably mounted to unshown axles, which axles are in turn mounted to the
  • the support frame 21 includes a rear cross member 26.
  • Four leveling jacks or outriggers 27 are mounted to the rear cross member and to a forward portion of the 20 support frame for leveling and stabilizing the tunneling apparatus 20 upon the ground.
  • the leveling jacks 27 are hydraulically powered and each carries a swiveling, ground engaging pad 28 at its lower end.
  • An engine 31 is mounted on the support frame 21 25 and powers a hydraulic pump 32.
  • the engine 31 and the hydraulic pump 32 are substantially contained within an engine housing 33 to protect the engine and pump from the weather and to prevent operators from accidentally contacting the engine.
  • the engine 31, the hydraulic pump 30 32 and the engine housing 33 are positioned at a forward end of the apparatus 20, as shown.
  • a large fluid reservoir 34 is positioned upon the support frame 21 closely behind the engine 31 and the engine housing 33.
  • a large take-up reel 36 is positioned
  • the take-up reel 36 is
  • SUBSTITUTESHEET rotatably mounted to a pair of triangular frame members 37 and 38 which are in turn coupled to the support frame 21.
  • the take-up reel 36 is made up of a pair of substantially identical spoked wheel members 41 and 42 sharing a common hub.
  • spoked wheel 41 includes a wheel rim 43 and a series of spokes 44 extending between the hub and the rim 43.
  • the take-up reel 36 is adapted to receive a length of semi-rigid steel advancing conduit or pipe 46.
  • the advancing conduit 46 is rigid enough to be pushed through the ground with a minimum of deflection and yet is flexible enough to be wound upon the take-up reel 36.
  • One end 47 of the advancing conduit 46 is in fluid communication with a hollow portion of the hub of the take-up reel 36 by means of a flexible conduit 48. With this construction, fluid pressure may be communicated through the hub and correspondingly through the advancing conduit 46.
  • An advancing and retracting mechanism 51 is mounted to the rear cross member 26 for advancing and retracting the advancing pipe 46. As best illustrated in
  • the advancing and retracting mechanism 51 includes a pair of substantially identical plates 52 and 53 mounted parallel to each other. Each plate is roughly shaped in the form of a guitar and includes a big end portion indicated generally at 56, a neck portion indicated generally at 57 and a head portion indicated generally at
  • the advancing and retracting mechanism 51 is pivotally mounted to the cross member 26 at the big end portion 56 and the head portion 58 is coupled to the cross member by a hydraulic jack 59.
  • a pair of upper and lower tracks 61 and 62 are mounted between the parallel plates 52 and 53 in the vicinity of the big end portion 56.
  • Each track is made up of a number of individual gripper members to form a continuous chain.
  • SUBSTITUTESHEET includes a concave surface for engaging the outside surface of the advancing conduit 46.
  • Upper track 61 is driven by unshown hydraulic motors contained within a motor housing 63.
  • One of the motors is provided for driving the upper track in a clockwise direction for retracting the advancing conduit, while the other motor is provided for driving the upper track in a counter-clockwise direction for advancing the advancing conduit.
  • a similar pair of motors are housed within a motor housing 64 for driving the lower track 62.
  • a pair of guide rollers 66 and 67 are rotatably mounted between the parallel plates 52 and 53. Adjustment means indicated generally at 68 and 69 are provided for adjusting the positions of the guide rollers 66 and 67 relative to each other and relative to the upper and lower tracks 61 and 62.
  • a second pair of guide rollers 71 and 72 are rotatably mounted between the parallel plates 52 and 53 in the vicinity of the head portion 58. Slots 73 and 74 are provided in the parallel plates 52 and 53 in the vicinity of the head portion 58. The position of the rollers 71 and 72 can be adjusted along the slots and therefore can be adjusted relative to the vertical position of rollers 66 and 67 and upper and lower tracks 61 and 62. With this construction, the rollers 71 and 72 can be adjusted to instill, maintain or eliminate a curvature in the advancing conduit 46 as it is advanced or retracted with the advancing and retracting mechanism 51.
  • FIGs. 3A and 3B schematically show portions of the tunneling apparatus in use in tunneling under a roadway R.
  • the takeup reel 36 and the advancing and retracting mechanism 51 of the tunneling apparatus 20 are positioned adjacent an access pit P previously dug in the ground by conventional techniques.
  • a coupling member 77 couples the advancing conduit 46 to a
  • SUBSTITUTESHEET drill motor 78 A forward bent housing 79 is mounted to the drill motor at a 2° angle relative to the drill motor. While 2° has been found to be particularly effective, other angles might work satisfactorily.
  • the coupling 77 5 and the drill motor 78 are coaxially aligned with a longitudinal axis of the advancing pipe 46. While the advancing pipe 46 has some flexibility, the straightened portion which is forced through the ground generally defines a longitudinal axis.
  • a drill bit or drill member 10 81 is rotatably mounted to the bent housing 79 so that as the drill bit 81 rotates to define a drilling axis, the drilling axis is at a 2° angle relative to the longitudinal axis of the motor 78, the coupling 77 and the longitudinal axis of the advancing conduit 46.
  • a radio transmitter 82 is positioned near the leading end of the conduit and transmits signals which can be received by a receiver 83.
  • the receiver 83 is a directionally sensitive receiver which includes depth sensing capabilities. 0
  • the coupling member 77 is tubular and is substantially the same diameter as the advancing conduit 46 and the drill motor 78.
  • the coupling member 77 includes three distinct elements, namely a first portion 86, a collar 87 and a second portion 88.
  • the first 5 portion 86 is threadedly mounted to the advancing conduit 46 and includes a threaded shaft 90 and a toothed face 91.
  • Second portion 88 is threadedly mounted to the drill motor 78 and includes a smooth shank 92, a flange 93 and a toothed face 94.
  • the toothed face 94 is a complementary 0 surface for engaging with the toothed face 91.
  • a butt end 96 of the collar 87 is rotatably received about the smooth shank 92 of the second portion 88 of the coupling member and it is retained thereagainst by the flange 93.
  • the collar 87 also includes a threaded end 97 for engagement 5 with the threaded shaft 90 of the first portion 86.
  • the motor 78 is of a Moineau type and includes an outer casing 101, a stator 102 and a rotor 103.
  • the casing 101 is made of an alloy steel
  • the stator is made of a durable rubber compound
  • the rotor is of a metal which has been hard chrome plated for durability.
  • the rotor 103 is generally spiral and the stator 102 defines a corresponding spiral cavity 104 within which the rotor can rotate.
  • the theory of operation of a motor of this type is that as fluid is forced through the stator under pressure it causes the rotor to rotate.
  • the drill bit is rotatably mounted to a forward portion of the bent housing 79. It has been found that using a drill bit 81 which cuts a bigger diameter hole than the diameter of the conduit that follows behind it provides sufficient clearance to allow effective steering of the tunneling apparatus; therefore, drill bit 81 is substantially larger in diameter than either bent housing 79 or the other cylindrical components (i.e. the drill motor and advancing conduit).
  • drill bit 81 is seen to comprise a multi-toothed cutter including tungsten carbide inserts for durability.
  • drill bit 81 can be replaced with other suitable drill bits, such as drill bit 111.
  • Drill bit 111 is made up of a number of individual cutting surfaces provided with man-made diamond material. Regardless of the particular drill bit used, it is important that the drill bit include a passageway therethrough such as the passageway 106 in drill bit 81 or the passageway 112 in drill bit 111. These passageways are important to allow fluid which has been used to drive the drill motor 78 to pass out through the end of the drill bit.
  • the tunneling apparatus 20 is towed to the site at which the tunneling is to be performed.
  • a small access pit P is dug to provide a starting place for
  • SUBSTITUTESHEET the tunnel and to act as a collection pit for fluid and soil.
  • the engine 31 is operated to provide hydraulic power by means of the hydraulic pump 32.
  • the leveling jacks 27 are then used to level and brace the tunneling apparatus upon the ground.
  • Hydraulic jack 59 is then used to move the advancing and retracting mechanism 51 to a desired initial angle at which the advancing conduit 46 will enter the ground. After mounting the drill motor and drill bit to the leading end of the advancing conduit, the advancing conduit, drill motor and drill bit are then ready to be inserted into the ground for tunneling.
  • advancing or retracting the advancing conduit 46 hydraulic power is supplied to the hydraulic motors contained within the motor housings 63 and 64 to drive the upper and lower tracks 61 and 62, forcing the advancing conduit in either a forward or a rearward direction as desired.
  • water is provided under pressure, as by pump 32 or other suitable means, through the advancing conduit.
  • the water is pumped through the hub of the take-up reel 36, through the flexible conduit 48 and then through the advancing conduit 46.
  • the water is pumped under several hundred PSI pressure through the advancing conduit 46, through the coupling member 77 and through the drill motor 78.
  • the rotary motion of the rotor is transmitted by an unshown drive shaft within the bent housing 79 to the drill bit 81, thereby driving the drill bit.
  • the fluid which has flowed through the drill motor 78 also flows through the bent housing 79 and ultimately through the end of the drill bit 81.
  • the water or fluid preferably contains additives, such as
  • SUBSTITUTESHEET powdered clay which facilitate the cutting action of the drill bit as it engages the soil or rock and stabilize the walls of the tunnel.
  • the drill bit As the drill bit rotates, its cutting teeth mechanically dig into the soil or rock to form the tunnel.
  • the loosened soil or rock is carried along with the water along the tunnel back toward the access pit P.
  • the drill bit 81 being of a larger diameter than the drill motor or the advancing conduit provides adequate clearance to facilitate the rearward transport of the water and the soil or rock.
  • the water is retrieved from the access pit and recycled for further use.
  • a radio transmitter 82 can be implanted within the leading end of the advancing conduit and signals can be detected from the radio transmitter with an appropriate receiver, such as receiver 83.
  • the receiver is directionally sensitive and is capable of determining the depth of the signal so that the operator can determine both the lateral and vertical position of the tunnel.
  • Other alternative methods of sensing the position are of course possible. For example, one can introduce a signal into the advancing conduit, drill motor and bent housing to use these components as an antenna. The signal created by this antenna can then be detected above ground.
  • the apparatus can be steered as follows to urge the tunnel toward the desired path.
  • the advancing conduit 46 is withdrawn from the tunnel, bringing with it the drill motor and bent housing.
  • the coupling member 77 pulled out of the tunnel, the coupling member can be used to reorient the bent housing and the drill bit relative to the longitudinal axis of the advancing conduit.
  • the advancing conduit 46 In reorienting the drill motor 78 relative to the advancing conduit 46, the advancing conduit 46 is incapable of significant rotation because the advancing conduit at the opposite end is wound upon the take-up reel. After the drill motor and drill bit have been reoriented relative to the longitudinal axis of the advancing conduit, the advancing conduit and the drill and drill motor are reinserted into the tunnel and tunneling is commenced again along the new orientation. In most utility tunneling applications, the length to be traversed is several hundred feet or less and accordingly, this withdrawal, reorientation and reinsertion technique has been found to be satisfactory.
  • the tunneling apparatus to create a tunnel without sensing the position of the equipment and without effecting any steering. This is accomplished by initially orienting the drill bit and drill motor so that the drill bit is pointing straight up at a 2° angle from the advancing conduit. The advancing conduit is then directed into the ground at an angle and as it is advanced through the ground, the 2° angle of the bent housing and drill bit slowly pull it back upwardly and cause the drill to surface a certain distance away.
  • the tunneling was begun in an access pit at a level 42 inches below the surface of the ground.
  • the advancing and retracting mechanism was adjusted so that the advancing conduit was oriented at a 4-1/2° angle below horizontal and tunneling commenced through the ground with the drill bit surfacing approximately 135 feet away from the access pit.
  • the entry angle is of course very important, as is the angle of the bent housing.
  • Such a remotely manipulated coupling can take the form of an electric or hydraulic motor which can be remotely controlled to turn the drill motor in fine increments relative to the advancing conduit.
  • any such remotely manipulated motor should include a passage therethrough for allowing fluid to be communicated to the drill motor.
  • an electric drill motor or some other type of drill motor is employed, the need for a fluid passage therethrough might be obviated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Earth Drilling (AREA)

Abstract

Appareil (20) permettant de creuser un tunnel souterrain pour l'installation de câbles, de canalisations et analogues, comprenant un conduit semi-rigide avançant (46), un mécanisme de poussée et de rétraction (51) destiné au déplacement du conduit et une bobine réceptrice (36) destinée à la réception de celui-ci. Un moteur de forage hydraulique (78) est installé à l'extrémité d'attaque (76) du conduit avançant, à l'aide d'un élément d'accouplement (77). Un boîtier courbé (79) est fixé suivant un angle faible par rapport au moteur de forage, de façon à supporter le trépan de forage (81) entraîné en rotation. L'accouplement (77) permet de modifier l'orientation du trépan de forage (81) par rapport à l'axe longitudinal du conduit avançant (46) de façon à diriger efficacement l'appareil.
PCT/US1991/000469 1990-01-24 1991-01-23 Methode et appareil de creusement de tunnels pour installations d'utilite publique Ceased WO1991011646A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46925090A 1990-01-24 1990-01-24
US469,250 1990-01-24

Publications (1)

Publication Number Publication Date
WO1991011646A1 true WO1991011646A1 (fr) 1991-08-08

Family

ID=23863062

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/000469 Ceased WO1991011646A1 (fr) 1990-01-24 1991-01-23 Methode et appareil de creusement de tunnels pour installations d'utilite publique

Country Status (2)

Country Link
AU (1) AU7332791A (fr)
WO (1) WO1991011646A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282165A (en) * 1993-09-03 1995-03-29 Cambridge Radiation Tech Directional drilling apparatus and method
EP0588051B1 (fr) * 1992-09-16 1996-10-30 Witzenmann GmbH Metallschlauch-Fabrik Pforzheim Procédé pour la pose d'un conduit de chauffage sans excavation, conduit de chauffage et dispositifs pour la mise en oeuvre de ce procédé
WO2003076760A3 (fr) * 2002-03-08 2004-04-08 Shell Int Research Systeme orientable de penetration du sol

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659997B1 (fr) * 1990-03-20 1995-12-01 France Etat Ponts Chaussees Appareil d'enfoncement dans le sol de tiges utilisees notamment pour essais de mecanique des sols.

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455401A (en) * 1968-05-06 1969-07-15 Byron Jackson Inc Orienting tool for slant hole drilling
US4026371A (en) * 1975-12-22 1977-05-31 Kabushiki Kaisha Komatsu Seisakusho Pilot head for laying pipes in the ground
US4067404A (en) * 1976-05-04 1978-01-10 Smith International, Inc. Angle adjustment sub
US4396073A (en) * 1981-09-18 1983-08-02 Electric Power Research Institute, Inc. Underground boring apparatus with controlled steering capabilities
US4433738A (en) * 1981-12-24 1984-02-28 Moreland Ernest W Method and apparatus for use when changing the direction of a well bore
US4542647A (en) * 1983-02-22 1985-09-24 Sundstrand Data Control, Inc. Borehole inertial guidance system
US4655299A (en) * 1985-10-04 1987-04-07 Petro-Design, Inc. Angle deviation tool
US4787463A (en) * 1985-03-07 1988-11-29 Flowmole Corporation Method and apparatus for installment of underground utilities
US4813497A (en) * 1986-10-15 1989-03-21 Wenzel Kenneth H Adjustable bent sub
US4856600A (en) * 1986-05-22 1989-08-15 Flowmole Corporation Technique for providing an underground tunnel utilizing a powered boring device
US4867255A (en) * 1988-05-20 1989-09-19 Flowmole Corporation Technique for steering a downhole hammer
US4905774A (en) * 1986-05-27 1990-03-06 Institut Francais Du Petrole Process and device for guiding a drilling tool through geological formations
US4936397A (en) * 1989-03-27 1990-06-26 Slimdril International, Inc. Earth drilling apparatus with control valve

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455401A (en) * 1968-05-06 1969-07-15 Byron Jackson Inc Orienting tool for slant hole drilling
US4026371A (en) * 1975-12-22 1977-05-31 Kabushiki Kaisha Komatsu Seisakusho Pilot head for laying pipes in the ground
US4067404A (en) * 1976-05-04 1978-01-10 Smith International, Inc. Angle adjustment sub
US4396073A (en) * 1981-09-18 1983-08-02 Electric Power Research Institute, Inc. Underground boring apparatus with controlled steering capabilities
US4433738A (en) * 1981-12-24 1984-02-28 Moreland Ernest W Method and apparatus for use when changing the direction of a well bore
US4542647A (en) * 1983-02-22 1985-09-24 Sundstrand Data Control, Inc. Borehole inertial guidance system
US4787463A (en) * 1985-03-07 1988-11-29 Flowmole Corporation Method and apparatus for installment of underground utilities
US4655299A (en) * 1985-10-04 1987-04-07 Petro-Design, Inc. Angle deviation tool
US4856600A (en) * 1986-05-22 1989-08-15 Flowmole Corporation Technique for providing an underground tunnel utilizing a powered boring device
US4905774A (en) * 1986-05-27 1990-03-06 Institut Francais Du Petrole Process and device for guiding a drilling tool through geological formations
US4813497A (en) * 1986-10-15 1989-03-21 Wenzel Kenneth H Adjustable bent sub
US4867255A (en) * 1988-05-20 1989-09-19 Flowmole Corporation Technique for steering a downhole hammer
US4936397A (en) * 1989-03-27 1990-06-26 Slimdril International, Inc. Earth drilling apparatus with control valve

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
"Datadril MWD System" brochure, SMITH INTERNATIONAL, updated. *
"MIT Cail Drill-200" Brochure, TRENCHLESS TECHNOLOGY AND CONSTRUCTION, INC., Undated. *
DOWNHOLE ENGINEERING INC. BROCHURE, "My-D-Mo", updated. *
FLOW MOLE CORPORATION BROCHURE, "Guide Drill", updated. *
FRANK RUFFER, "Drehteile and Dusen Fabrikation" brochure, updated. *
MECHANIQUE POPULAIRE, July 1955, page 89. *
SLIMDRIL INTERNATIONAL, HORIZONTAL DRILLING, "High performance drill bits brochure", updated. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0588051B1 (fr) * 1992-09-16 1996-10-30 Witzenmann GmbH Metallschlauch-Fabrik Pforzheim Procédé pour la pose d'un conduit de chauffage sans excavation, conduit de chauffage et dispositifs pour la mise en oeuvre de ce procédé
GB2282165A (en) * 1993-09-03 1995-03-29 Cambridge Radiation Tech Directional drilling apparatus and method
WO2003076760A3 (fr) * 2002-03-08 2004-04-08 Shell Int Research Systeme orientable de penetration du sol
US7347282B2 (en) 2002-03-08 2008-03-25 Shell Oil Company Steerable soil penetration system

Also Published As

Publication number Publication date
AU7332791A (en) 1991-08-21

Similar Documents

Publication Publication Date Title
EP1552103B1 (fr) Guidage de tete de forage
EP0403078A2 (fr) Procédé et dispositif pour le forage dirigé
US6470978B2 (en) Fluid drilling system with drill string and retro jets
US4953638A (en) Method of and apparatus for drilling a horizontal controlled borehole in the earth
US4821815A (en) Technique for providing an underground tunnel utilizing a powered boring device
US6536539B2 (en) Shallow depth, coiled tubing horizontal drilling system
EP1354118B1 (fr) Retro-aleseuse
EP1252413A2 (fr) Systeme destine a automatiquement percer et aleser des trous de sonde
US4856600A (en) Technique for providing an underground tunnel utilizing a powered boring device
MXPA98000447A (en) Method for the replacement of pipe enterr
US5236284A (en) Drilling apparatus and method for its control
US5584351A (en) Drilling machine and method of horizontal boring
US8113741B1 (en) Boring machine with conveyor system for cuttings and method for boring therewith
US4051911A (en) Apparatus and process for drilling underground arcuate paths utilizing directional drill and following liner
RU1836565C (ru) Способ выполнени подземного туннел и установка дл осуществлени
WO1991011646A1 (fr) Methode et appareil de creusement de tunnels pour installations d'utilite publique
US7367412B2 (en) Collapsible rock head
US5924500A (en) Steerable boring machine
KR100770244B1 (ko) 플라즈마 발파장치를 구비한 터널 굴진기
US4977967A (en) Steering and lubricating apparatus for portable earth boring machine with steering head
AU2003271429B2 (en) Drill head steering
JPH10259692A (ja) 地盤の削進装置
JPH0768863B2 (ja) 小口径管路掘進用先導筒体とこれによる小口径管路掘進工法
JPS5920477Y2 (ja) 彎曲孔穿設装置
FI85302B (fi) Foerfarande och anordning foer att bygga underjordiska roerlinjer.

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BR CA JP KR

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LU NL SE

NENP Non-entry into the national phase

Ref country code: CA