EP2505762A2 - Dispositif de forage et procédé de forage horizontal - Google Patents

Dispositif de forage et procédé de forage horizontal Download PDF

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Publication number
EP2505762A2
EP2505762A2 EP12001285A EP12001285A EP2505762A2 EP 2505762 A2 EP2505762 A2 EP 2505762A2 EP 12001285 A EP12001285 A EP 12001285A EP 12001285 A EP12001285 A EP 12001285A EP 2505762 A2 EP2505762 A2 EP 2505762A2
Authority
EP
European Patent Office
Prior art keywords
drilling
drill
linkage
drive
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.)
Granted
Application number
EP12001285A
Other languages
German (de)
English (en)
Other versions
EP2505762A3 (fr
EP2505762B1 (fr
Inventor
Georg Hesse
Friedhelm Albrecht
Carl Dr. Hagemeyer
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.)
Abs Trenchless Zweigniederlassung Der Klemm Bohrt
Original Assignee
ABS Trenchless 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 ABS Trenchless GmbH filed Critical ABS Trenchless GmbH
Priority to EP12001285.1A priority Critical patent/EP2505762B1/fr
Priority to NO12001285A priority patent/NO2505762T3/no
Publication of EP2505762A2 publication Critical patent/EP2505762A2/fr
Publication of EP2505762A3 publication Critical patent/EP2505762A3/fr
Application granted granted Critical
Publication of EP2505762B1 publication Critical patent/EP2505762B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B7/046—Directional drilling horizontal drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/002—Drilling with diversely driven shafts extending into the borehole

Definitions

  • the invention relates to a drilling device for horizontal drilling with a drill head, a drill pipe, is arranged at the drillhole end of the drill head, and a drive device, which is arranged at the other end of the drill string and is designed for rotary drive and feed drive of the drill string, wherein the drill string a External linkage and a rotatably mounted relative thereto inner linkage, which are each composed of at least two drill string elements, between which an annular space for guiding a rinsing liquid is formed by a rotary connection to the drill head, the inner rod comprises a straightening space, which extends from the drive means to a extends in the directional space at least part of a target device for directional control of the drill head, according to the preamble of claim 1.
  • the invention relates to a method for creating a substantially horizontal wellbore with such a drilling device.
  • Horizontal drilling is used to lay pipes, pipes, channels, etc. in the ground without having to create a trench over the entire laying length.
  • horizontal drilling devices are known.
  • horizontal drilling devices are often based on the principle of positive displacement drilling, wherein a drill head laterally displaces existing soil material and thus generates the borehole.
  • such drilling devices are only suitable for relatively soft soil conditions.
  • a generic drilling device is from the DE 101 16 103 A1 known.
  • an inner drill string with the drill head is surrounded by an outer control rod linkage.
  • the control tube linkage has a radially offset to the drilling axis guide section.
  • the control linkage can rotate with the drill string in synchronism or be decoupled from it.
  • a dog clutch is provided on the common drive, with which by an axial coupling movement, the control linkage can be connected to the output of the drive or decoupled.
  • From the DE 10 2005 011 968 A1 shows a drilling device, which has an inner rod with a downhole hammer and an outer rod. There are provided a rotary drive and a pressure drive. Inside the inner boom, an optical lane for measurement is formed, wherein the outer linkage has an asymmetric slope for control.
  • the invention has for its object to provide a drilling apparatus and a method for horizontal drilling, which can be used in hard soil or rock for positionally accurate drilling.
  • the drilling apparatus is characterized in that the inner linkage of a first rotary drive and the outer linkage are rotationally driven by a second rotary drive, that a control device is provided, through which the first rotary drive and the second rotary drive are independently adjustable and controllable that each drill string element at its drill head end has an adjusting device by which a defined mounting position of a drill string element of the inner linkage is set to a surrounding drill string element of the outer linkage, and that at the end facing away from the drill head of the drill string elements at least the inner linkage or the outer linkage, a marking element is arranged through which the Location of the drill string element relative to the drill head can be seen.
  • One aspect of the invention is based on using a drill head for material removal.
  • the removed soil material is not carried away by a screw conveyor, but by the supply of rinsing liquid.
  • the flushing liquid is passed through an annular space between the outer rod and the inner rod to the drill head.
  • the discharge of the excavated soil material can be done either by a separate line within the drill string or preferably along the outside of the drill string.
  • an interior of the inner rod remains free and thus can be used as a leveling space for control and directional control of the drill head.
  • This straightening space extends from the drive device outside the borehole to near the drill head. It is about an optical direction control possible. However, it can also be done in another way directional control by means of the directional space, for example by a directional linkage or a directional wire, which are arranged along the directional space. Other directional controls using the directional space are possible.
  • the outer linkage and the inner linkage are each driven by a separate rotary drive, which are independently controllable in particular with regard to speed and direction of rotation. This allows the two linkages in synchronism or in any Be driven different way to each other. This allows a very precise direction control.
  • the individual linkage elements are each mounted in a precisely defined mounting position by means of corresponding alignment devices and marking elements.
  • the rinse liquid cools the drill head and flushes the removed soil material out of the borehole.
  • the rinsing liquid is supplied so that an internal straightening space remains in the drill string, with which a very accurate, reliable control of the drill head is possible.
  • the outer rod is rotatably mounted relative to the inner rod and that the drill head is attached to the inner rod.
  • the decisive for the drilling rotary motion is transmitted through the inner rod, so that a relatively low wear of the rotationally driven inner linkage is achieved.
  • the drill head is designed to create a borehole with a drill diameter, which is designed to form a return clearance for the rinsing liquid greater than an outer diameter of the outer rod.
  • the backflow of the flushing fluid on the outside of the drill string causes cooling and wear reduction.
  • the backflow flushing fluid with the cuttings can be taken at the end of the borehole, for example by a drip pan. From this drip tray, the discharged material can be removed by pump.
  • the drill head can be designed with the widest variety of drilling and cutting tools.
  • the drill head has, as drilling tools, roller bits which are mounted rotatably about roller axes on a drill head base.
  • roller bits have roller-shaped Basic body with arranged on it cutting on. These serve in particular for processing hard soil material as well as rock.
  • At least one outlet opening is arranged on the drill head for the discharge of the rinsing liquid, which is connected to the annular space.
  • the outlet opening is formed in particular on the plate-shaped drill head base.
  • the outlet opening may also be formed as an outlet nozzle, so that the rinsing liquid and the pressure is supplied and exits as a liquid jet at the drill head. This can assist in loosening soil material as well as flushing out the drilling tools.
  • the control device is provided for controlling the direction of the drilling device.
  • the position of the drill head can be changed defined.
  • a variety of controls are possible, such as displayable control plates.
  • the control is effected by the same or unequal rotational driving of the outer linkage and the inner linkage.
  • a particularly simple and advantageous control option according to the invention is that for controlling at least one Steuerkufe, which is arranged on the outside of the outer linkage, and a twisting device is provided, with which for controlling the drilling device, the outer linkage with the Steuerkufe against the inner linkage rotatable is.
  • the outer linkage is rotated until the control link is at a position which is 180 ° offset from the direction to which the drilling device is to be deflected.
  • the further drilling progress is now carried out without rotation of the outer linkage, so that the drilling device evades in the opposite direction due to the additional resistance of the radially extended Steuerkufe.
  • the aiming device in the aiming space has a target table which is arranged on the closing element, and in that a target device for determining a positional deviation of the target table from a target position is furthermore arranged on one end of the target area opposite the target table.
  • the target plate can be in particular a marker, which is preferably illuminated. This can be done, for example, by corresponding light-emitting diodes in the target plate, which represents the actual target mark.
  • the target device is in particular an optically operating target device, which is thus arranged independently of the drill string and can detect deviations of the drill head and the associated target plate from a desired position.
  • the target device has a theodolite and a camera.
  • a theodolite is an optical measuring device for position determination, which is well known from other applications for surveying. Targeting can be done from outside the borehole via a camera and transmitted to any control unit remote from the borehole.
  • the theodolite specifies a nominal or directional axis. The target mark of the target board lies in the directional axis. If the drill head is deflected, the target marker moves out of the directional axis and triggers a corresponding counter-control until the target marker is back on the directional axis.
  • Deviations can thus be detected electronically without further ado, whereby position deviations then automatically effect a corresponding directional correction via the control device.
  • the direction correction may also be effected manually by an operator based on, for example, a screen display.
  • the drive device in addition to a first rotary drive for the inner rod and a second rotary drive for the outer rod also has an axial drive for a feed in the drilling direction.
  • the two rotary actuators are designed in the usual way as hydraulic drives.
  • a so-called step drive with an adjustable slide is preferably provided, which can be moved by means of at least one hydraulic cylinder in a guide frame by a predetermined step length.
  • the drill string is attached.
  • the step length of the axial drive is the same size or slightly larger than the length of the sections of the drill string.
  • the drill string is constructed of drill string elements each having end-side connecting means and that in the annular space, at least in the region of the drive-side connecting device, a partially annular blocking plate is arranged.
  • the connecting means may comprise wedge couplings with corresponding axial fuses or threaded connections in a known manner.
  • each drill string element is preferably a bearing, with which the outer rod is rotatably mounted relative to the inner rod.
  • the object is further achieved by a method for creating a substantially horizontal borehole with the drilling device described above, wherein it is provided that during drilling a flushing liquid is passed through the annular space between the outer rod and the inner rod to the drill head. It is so a drilling method with rinsing fluid through the interior allows, but at the same time the central interior of the drill string remains free for directional control.
  • the inner linkage is rotationally driven by a first rotary drive and the outer linkage is driven by a second rotary drive, wherein each rotation of the rotary drives is set and controlled independently of each other.
  • a preferred embodiment of the method is that the rinsing liquid is discharged with the drilled soil material via a return clearance, which is formed between a borehole wall and the outer rod.
  • the drive device is arranged in a shaft at a level of the borehole to be created. This is done by the soil surface first buried in the ground a working or starting shaft, which can accommodate the drive device.
  • the drive device is arranged at a depth which corresponds approximately to the depth level of the borehole to be created. The drilling device with the drive device is then aligned accordingly in the drilling direction. During drilling, necessary directional corrections can be made.
  • a simple and accurate control is inventively achieved in that the drilling device is controlled by a rotation of the outer linkage with a Steuerkufe against the inner linkage.
  • the control skid may be radially extendable when a direction correction has to be made. If the control skid protrudes radially, the outer tube can be stationary relative to the inner tube in order to correct the direction. Unless directional correction is required, the outer linkage and inner linkage are otherwise synchronously driven so that the control link provides uniform circumferential resistance during the common rotational motion.
  • a drilling device 10 has a support frame 70, which is arranged for horizontal drilling in a working shaft.
  • the support frame 70 comprises vertical supports 74 between which two guide rails 72 are arranged horizontally parallel to the drilling axis.
  • a drive slide 66 is mounted axially displaceable as part of the drive means 60.
  • an axial drive 68 is provided with two actuating cylinders 69 arranged parallel to the guide rails 72.
  • the actuating cylinder 69 are based on the one hand on a rear support plate 76 and on the other hand on the drive carriage 66 from.
  • a first rotary drive 62 are mounted for driving an inner linkage 32 and a second rotary drive 64 mounted in the drilling direction in front of it, which is designed to drive an outer linkage 34.
  • the outer linkage 34 and the inner linkage 32 disposed coaxially therein form the drill pipe 30, at the front end of which a drill bit 20 for excavating soil material is secured.
  • a rotary connection 38 also called flushing head, is arranged at the rear end of the drill string 30 in front of the second rotary drive 64.
  • the rotary connection 38 serves to connect a rinsing fluid line, not shown, to guide rinsing fluid through the drill pipe 30 to the drill head 20.
  • the drive device 60 is in Fig. 2 again shown in more detail.
  • the first rotary drive 62 and the second rotary drive 64 are formed with a hollow drive shaft, so that within the tubular inner rod 32 a straightening space 40 remains.
  • This directional space 40 is open to the rear, drive-side end, so that a direction control can be carried out via a highly schematically indicated optical target device through the centric directional space 40.
  • the target device 54 is arranged in a receiving space behind the first rotary drive 32 and preferably supported by means of an adjusting device on the support frame 70.
  • the outer rod 34 is coaxial with the drilling axis 21 and spaced from the inner rod 32, so that between the inner rod 32 and the outer rod 34, an annular space 36 is formed. Rinsing liquid can be conducted into the annular space 36 via the rotary connection 38 with the radial inlet opening 39.
  • Fig. 3 the drill head 20 is shown in more detail.
  • This has a drill head base 26, on which a plurality of roller bits 22 arranged transversely to the drilling axis 21 Roller axles 24 are rotatably mounted.
  • the drill head base 26 has a cone region with which the drill head base 26 is detachably inserted in a sleeve-shaped adapter 27 with a corresponding cone-shaped receiving bore.
  • the adapter 27 is in turn releasably secured by means of a shaft nut 15 to the inner drive shaft 13 which is rotatably connected to the inner rod 32.
  • the adapter 27 is mounted on its outer side in a retaining sleeve 27, which is welded via a cover 14 to an outer end linkage 12, which in turn is non-rotatably connected to the outer linkage 34.
  • the drill head 20 can be changed quickly and replaced by a larger diameter drill head for an extension hole.
  • annular space 36 opens on the lid 14 via a transverse channel 18 in an outlet opening 28 to the drill head 20 back.
  • the flow of the rinsing liquid through the annular space 36 to the drill head 20 is shown schematically by arrows.
  • the rotatably mounted within the end linkage 12 drive shaft 13 has an inner cavity, which continues the directional space 40 of the drill string 30.
  • a closing element 41 is fixed, at its facing the directional space 40 end face a target plate 52 is arranged with a target marking for the target device 54 for forming the target device 50.
  • the overall arrangement of the drilling device 10 is again schematically in FIG Fig. 5 shown.
  • the tubular inner rod 32 is connected via a driver 63 to the first rotary drive 62, while the outer rod 34 is connected via a second driver 65 to the second rotary drive 64.
  • the annular space 36 is sealed to the rear via a sleeve-shaped end seal 37.
  • the drill string 30 may be assembled from any number of drill pipe elements 31 by means of connectors 42.
  • the connecting devices 42 have inner connecting elements 46 and outer connecting elements 47, which are each formed corresponding to the corresponding connecting elements of the adjacent linkage elements 31.
  • the rotationally driven inner linkage 32 is rotatably supported by annular slide bearings 44 in the likewise externally movable linkage 34.
  • the plain bearings 44 have openings for the passage of the rinsing liquid.
  • the annular space is in each case partially closed off to the end sides of the linkage element 31 via a C-shaped blocking plate 48.
  • the blocking plate 48 has a breakthrough for the passage of liquid at a peripheral portion.
  • marking element 45 such as a recess or a projection
  • this breakthrough is arranged so that it faces up during assembly or disassembly, so that little or no liquid exits the annular space 36 during the assembly process .
  • the marking element 45 also indicates the position of the drill head 20 to the rear.
  • a corresponding marking element can also be arranged on the linkage elements 31 of the inner linkage 32.
  • the marker elements may also ensure that the individual adjacent linkage elements 31 are mounted in a single defined position relative to each other.
  • the drill pipe 30 is driven to rotate, while the drive carriage 66 is moved by the axial drive 68 axially forward into the ground.
  • the connection device 42 is released in front of the rotary connection 38, so that the drill drive slide 66 can be reset again with the axial drive 68.
EP12001285.1A 2011-03-30 2012-02-27 Dispositif de forage et procédé de forage horizontal Not-in-force EP2505762B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12001285.1A EP2505762B1 (fr) 2011-03-30 2012-02-27 Dispositif de forage et procédé de forage horizontal
NO12001285A NO2505762T3 (fr) 2011-03-30 2012-02-27

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11002635 2011-03-30
EP12001285.1A EP2505762B1 (fr) 2011-03-30 2012-02-27 Dispositif de forage et procédé de forage horizontal

Publications (3)

Publication Number Publication Date
EP2505762A2 true EP2505762A2 (fr) 2012-10-03
EP2505762A3 EP2505762A3 (fr) 2017-02-22
EP2505762B1 EP2505762B1 (fr) 2018-02-14

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EP12001285.1A Not-in-force EP2505762B1 (fr) 2011-03-30 2012-02-27 Dispositif de forage et procédé de forage horizontal

Country Status (3)

Country Link
EP (1) EP2505762B1 (fr)
DK (1) DK2505762T3 (fr)
NO (1) NO2505762T3 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979455A (zh) * 2012-11-22 2013-03-20 中冶集团武汉勘察研究院有限公司 水平孔钻机
CN104295235A (zh) * 2014-09-30 2015-01-21 湖南科技大学 一种用于巷道底板的快速注浆钻孔设备
CN105729419A (zh) * 2016-04-18 2016-07-06 太原理工恒基岩土工程科技有限公司 深水井管壁钻孔装置
CN106121546A (zh) * 2014-03-03 2016-11-16 张勇 一种固井水泥钻通装置
EP3599340A1 (fr) * 2018-07-25 2020-01-29 HAZEMAG & EPR GmbH Dispositif de forage
US10711521B2 (en) 2017-05-01 2020-07-14 Vermeer Manufacturing Company Dual rod directional drilling system
EP3708764A1 (fr) * 2019-03-14 2020-09-16 TERRA AG für Tiefbautechnik Dispositif de forage
US11149501B2 (en) 2019-03-14 2021-10-19 Vermeer Manufacturing Company Rod coupler and coupled rod assembly
US11180962B2 (en) 2018-11-26 2021-11-23 Vermeer Manufacturing Company Dual rod directional drilling system
CN114161158A (zh) * 2021-12-23 2022-03-11 武汉誉城千里建工有限公司 一种输气管道不停输应急抢修用旁通、三通焊接工装
CN114378334A (zh) * 2022-01-28 2022-04-22 中建八局第二建设有限公司 一种单人可操作的多角度打孔装置

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE10116103A1 (de) 2001-03-30 2002-10-10 Schmidt & Co Gmbh Kranz Vorrichtung zum Auffahren einer unterirdischen Bohrung
USRE37975E1 (en) 1988-06-27 2003-02-04 The Charles Machine Works, Inc. Directional boring head with blade assembly
DE102005011968A1 (de) 2005-03-14 2006-10-05 Bohrtec Gmbh Vorrichtung zur Herstellung von Bohrungen im Erdreich

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DE2824722C3 (de) * 1978-06-06 1984-01-19 Ing. Günter Klemm, Spezialunternehmen für Bohrtechnik, 5962 Drolshagen Drehschlag-Bohrvorrichtung
DE3709932C2 (de) * 1987-03-26 1995-08-31 Cm Celler Maschinenfabrik Gmbh Schneidschuh für Preßbohranlagen zum grabenlosen Verlegen von Rohrleitungen oder dergleichen
DE19824503C1 (de) * 1998-06-02 1999-12-30 Genesys Elektronik Gmbh Verfahren und Vermessungseinrichtung für eine Pilotrohr-Vortriebseinrichtung zur vergleichenden zielgerichteten Messung der Vortriebsrichtung
DE10054659B4 (de) * 2000-11-03 2011-04-28 Tracto-Technik Gmbh Einrichtung zum richtungsgesteuerten Vortrieb von Rohren

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE37975E1 (en) 1988-06-27 2003-02-04 The Charles Machine Works, Inc. Directional boring head with blade assembly
DE10116103A1 (de) 2001-03-30 2002-10-10 Schmidt & Co Gmbh Kranz Vorrichtung zum Auffahren einer unterirdischen Bohrung
DE102005011968A1 (de) 2005-03-14 2006-10-05 Bohrtec Gmbh Vorrichtung zur Herstellung von Bohrungen im Erdreich

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102979455A (zh) * 2012-11-22 2013-03-20 中冶集团武汉勘察研究院有限公司 水平孔钻机
CN106121546A (zh) * 2014-03-03 2016-11-16 张勇 一种固井水泥钻通装置
CN104295235A (zh) * 2014-09-30 2015-01-21 湖南科技大学 一种用于巷道底板的快速注浆钻孔设备
CN104295235B (zh) * 2014-09-30 2016-09-07 湖南科技大学 一种用于巷道底板的快速注浆钻孔设备
CN105729419A (zh) * 2016-04-18 2016-07-06 太原理工恒基岩土工程科技有限公司 深水井管壁钻孔装置
CN105729419B (zh) * 2016-04-18 2017-10-24 太原理工恒基岩土工程科技有限公司 深水井管壁钻孔装置
US10851588B2 (en) 2017-05-01 2020-12-01 Vermeer Manufacturing Company Dual rod directional drilling system
US10711520B2 (en) 2017-05-01 2020-07-14 Vermeer Manufacturing Company Dual rod directional drilling system
US11808151B2 (en) 2017-05-01 2023-11-07 Vermeer Manufacturing Company Dual rod directional drilling system
US10961779B2 (en) 2017-05-01 2021-03-30 Vermeer Manufacturing Company Dual rod directional drilling system
US11098530B2 (en) 2017-05-01 2021-08-24 Vermeer Manufacturing Company Dual rod directional drilling system
US10711521B2 (en) 2017-05-01 2020-07-14 Vermeer Manufacturing Company Dual rod directional drilling system
EP3599340A1 (fr) * 2018-07-25 2020-01-29 HAZEMAG & EPR GmbH Dispositif de forage
US11180962B2 (en) 2018-11-26 2021-11-23 Vermeer Manufacturing Company Dual rod directional drilling system
US11149501B2 (en) 2019-03-14 2021-10-19 Vermeer Manufacturing Company Rod coupler and coupled rod assembly
EP3708764A1 (fr) * 2019-03-14 2020-09-16 TERRA AG für Tiefbautechnik Dispositif de forage
CN114161158A (zh) * 2021-12-23 2022-03-11 武汉誉城千里建工有限公司 一种输气管道不停输应急抢修用旁通、三通焊接工装
CN114161158B (zh) * 2021-12-23 2022-12-09 武汉誉城千里建工有限公司 一种输气管道不停输应急抢修用旁通、三通焊接工装
CN114378334A (zh) * 2022-01-28 2022-04-22 中建八局第二建设有限公司 一种单人可操作的多角度打孔装置
CN114378334B (zh) * 2022-01-28 2023-08-18 中建八局第二建设有限公司 一种单人可操作的多角度打孔装置

Also Published As

Publication number Publication date
NO2505762T3 (fr) 2018-07-14
DK2505762T3 (en) 2018-05-28
EP2505762A3 (fr) 2017-02-22
EP2505762B1 (fr) 2018-02-14

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