EP3696369B1 - Dispositif de forage du sol pour un forage dirigé par câble, procédé de forage du sol dirigé par câble et utilisation lors du forage du sol dirigé par câble - Google Patents

Dispositif de forage du sol pour un forage dirigé par câble, procédé de forage du sol dirigé par câble et utilisation lors du forage du sol dirigé par câble Download PDF

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Publication number
EP3696369B1
EP3696369B1 EP20157358.1A EP20157358A EP3696369B1 EP 3696369 B1 EP3696369 B1 EP 3696369B1 EP 20157358 A EP20157358 A EP 20157358A EP 3696369 B1 EP3696369 B1 EP 3696369B1
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EP
European Patent Office
Prior art keywords
cable
pipe
drill pipe
magazine
guided
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.)
Active
Application number
EP20157358.1A
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German (de)
English (en)
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EP3696369A1 (fr
Inventor
Volker Boike
Stefan Hermes
Dieter Wurm
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.)
Tracto Technik GmbH and Co KG
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Tracto Technik GmbH and Co KG
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Publication of EP3696369A1 publication Critical patent/EP3696369A1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
    • 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
    • E21B17/003—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings with electrically conducting or insulating means
    • 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
    • E21B17/02—Couplings; joints
    • E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
    • 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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • 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
    • E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/046—Directional drilling horizontal drilling

Definitions

  • the invention relates to an earth drilling device for cable-guided drilling with a drive for connecting and / or moving pipe sections of a drill pipe along a drill pipe axis and a method for cable-guided earth drilling, in which a pipe section is part of a drill pipe drilled in the ground and in which a cable is present, is connected to another rod section.
  • the position of the drill head can be determined by a transmitter in the drill head using an electromagnetic field through the ground; a method known as the walk-over method is used for this purpose.
  • the walk-over method allows for quick location and is easy to handle.
  • the drill head is located above the ground using a reception strength measuring device (receiver).
  • the maximum signal strength of the transmitter signal from the transmitter in the drill head is determined depending on the position of the reception strength measuring device above the ground.
  • the signal strength depends on the depth of the transmitter in the ground, which also makes it possible to determine the depth. However, as drilling depths increase, the deviation tolerance increases.
  • each section of the drill pipe in particular each pipe section, is provided with an internal cable, which is connected to the adjacent sections of the drill pipe, in particular other pipe sections.
  • the cable is led outwards and connected to a slip ring from which data from a probe on the drill head or a position adjacent to the drill head can be picked up.
  • the data can be displayed to an operator, in particular in an operating cabin.
  • US 2005/0167121 A1 discloses a device and a method for inserting a pipe consisting of several pipe sections.
  • a drive is provided at the end of the pipe for inserting it ("top drive"), to which a cable module is firmly connected.
  • the object of the present invention is therefore to create an earth drilling device, a method and a use with which the effort in terms of time and / or costs can be reduced.
  • the core idea of the invention is to provide a cable supply with a length of at least the length of two rod sections, in which one end of the cable supply is in as constant as possible contact with a contact device for electrically contacting the end of the cable in order to at least one of the electrical contacts adding a boom section or changing a boom not having to disconnect and reconnect again and again.
  • the inventors have broken with the idea that when a new section of the drill pipe is to be added, ie in particular a pipe section, a cable section must be used which, for each new pipe section to be added, is connected at one end to the end of the cable in the drill pipe that has already been drilled must be connected as well as on the other end must be connected to the sliding contact provided on the earth drilling device for picking up the signals of the cable.
  • the drive When adding a pipe section or changing the pipe, the drive is detached from the drill pipe that has already been drilled and a drill pipe is inserted into the drill pipe axis and connected to the drive.
  • the pipe section connected to the drive is then connected to the drill pipe that has already been drilled into the ground, so that, according to previous considerations, the newly added pipe section also has to be contacted again with its two ends. This consideration has so far been transferred to the new cable to be added. It is to the credit of the inventors that they recognized that this idea had been broken.
  • the inventors have thus broken away from the idea that the cable must be inserted into the drill pipe in the same way as the connection of the newly inserted pipe section into the drill pipe requires.
  • the invention provides an earth drilling device according to claim 1.
  • the earth drilling device is designed for cable-guided drilling with a drive for connecting and / or moving pipe sections of a drill pipe along a drill pipe axis.
  • a cable supply is provided for holding a cable with a length of at least two rod sections and a contact device for electrically contacting one end of the cable of the cable supply. This creates the possibility of only providing a connection to the cable already in the drilled drill pipe when extending the drill pipe that has already been drilled into the ground by a further pipe section in which a cable has to be arranged in order to connect this to the cable of the cable supply and electrically insulated.
  • an “earth drilling device” is any device which, in particular, has a drill pipe with pipe sections in an existing one or the channel to be created is moved in the ground in order to create a borehole, in particular a horizontal borehole (HD), or to expand it or to pull pipes or other long bodies into the ground.
  • the earth drilling device can in particular be an HD device.
  • An earth drilling device can therefore be a device that drives a drill pipe, which works to displace soil and introduces the drill pipe into the soil in a translational and/or rotational manner in the longitudinal axial direction of the drill pipe.
  • a hole can be drilled into the ground by applying tension or pressure to the drill pipe.
  • the term “rod section” does not exclusively include rigid, individual force transmission elements that can be connected to one another indirectly or directly and which can be used in an earth drilling device.
  • HD horizontal drilling in the sense of the present description includes in particular an at least partially horizontally arranged bore or a horizontally arranged channel or pipeline.
  • the drill pipe can have a drill head and an optionally present drill head tip at one end, in particular at the front end.
  • the drill string may have a front drilling tool.
  • the term “drive” in the sense of the description includes a drive means that can be moved back and forth, which can be designed in particular for a connection to one end of a new rod section to be drilled.
  • the drive means can be connected to one end of the pipe section, while the other end of the pipe section can be connected to the already drilled drill pipe.
  • the drill pipe can be extended by adding a pipe section or changing the pipe.
  • the connection between the drive means and the linkage section can be non-positive and/or positive.
  • the drive means can, for example, be moved back and forth by means of a carriage on a drill carriage in order to impose a tensile force or a compressive force on the drill pipe connected to the drive means.
  • drill pipe axis includes in particular the axis that can be formed by the longitudinal axes of the individual pipe sections of the drill pipe, whereby for the purposes of the description the longitudinal axes of the pipe sections are considered, which are present in the drill pipe in the closer area of the earth drilling device.
  • the drill pipe axis is in particular the axis with which the drive accommodates the pipe section to be newly drilled and can therefore correspond to the longitudinal axis of the pipe section to be newly drilled.
  • the drill pipe axis can essentially coincide with the longitudinal axis of the drive means of the earth drilling device.
  • connection point in the sense of the description includes a single- or multi-core network of cables coated with an insulating material, which is used in particular to transmit energy and/or information. Electrical signals can be transmitted via a cable. If the cable has several lines or cores, parallel or simultaneous transmission of several signals is possible. Cables can be connected by stripping one end of a cable with another stripped end of a cable by clamping the cables together or otherwise connecting them mechanically and/or materially. To protect the connection, the connection point can be insulated, in particular with a shrink tube.
  • the term “contact device” in the sense of the description includes a contact element with which one end of the cable of the cable supply is in electrically conductive contact.
  • the contact device therefore has an electrically conductive contact element.
  • the contact element can be in constant contact with a display and/or a data processing unit, which can be designed as an arithmetic unit and has a controller or similar.
  • the signals can be displayed on the display, in particular in an operator's cabin, particularly preferably after processing using the controller.
  • the cable supply has a length of at least twice the length of a pipe section, this is a preferred embodiment which ensures that a further pipe section is first connected to the drill pipe that has already been drilled and a cable is arranged in the newly added pipe section can be.
  • the cable supply has a cable with a length which corresponds to at least the length of three, four or more rod sections.
  • the cable supply can have a cable with a length of at least 50 m, preferably at least 60 m, preferably at least 70 m, preferably at least 80 m, preferably at least 90 m, preferably at least 100 m. Depending on the length of the hole to be drilled, cable lengths of more than 100 m are also possible.
  • the cable supply has a reel which is arranged on the earth drilling device. This brings the cable supply into a manageable, compact form and prevents the cable from becoming tangled or knotted. It is also possible to determine the length when winding the cable onto the reel and/or to record the portion of the cable used when unwinding the cable.
  • the reel is arranged around the drill pipe axis. This makes it possible to create a particularly simple structure and a particularly simple arrangement that is easier to handle.
  • the term “arranged around the drill pipe axis” is to be understood in such a way that the central axis of the reel of the cable supply is aligned concentrically to the central axis of the connection, which coincides with the drill pipe axis.
  • the axis of rotation of the reel i.e. the central axis, coincides with the drill pipe axis.
  • a simple design with a simple construction is possible.
  • the cable supply or the reel can be arranged on the outside and surround the drill pipe axis.
  • Such an external feed can be preferred and enables a simple construction with little effort when replacing or refilling the reel with a cable supply, since external access makes handling easier.
  • a space-saving structure is therefore possible. Few components are required, which can simplify construction and reduce costs.
  • the mass of the parts/elements moving when feeding the cable can be kept low.
  • a complex hydraulic rotary union is not necessarily required.
  • the cable feed has at least one guide roller, which can be designed as a deflection roller, which serves to feed the cable in an orderly manner. This enables a feed in which the cable supply can be arranged independently of the drill pipe axis and/or in which a flexible arrangement of the cable supply is possible.
  • the cable feed has a rotary feedthrough for axial feed into the drill pipe axis.
  • the cable supply or the cable feed can also be present outside an axial axis, whereby in particular an opening on the drive means for manually passing a cable through can be dispensed with . Flexibility in the arrangement of the cable supply and/or the position of the contact device is possible.
  • a seal is provided on the cable feed for sealing against flushing fluid that can be fed to the drill pipe.
  • a seal can be used which essentially constantly closes a feed opening for the cable from the cable supply.
  • the opening can be an opening arranged in a rotary feedthrough, which act coaxially to the pipe section to be newly drilled, which is connected to the drive means. There is the possibility of further simplifying handling steps by not having to repeatedly form the seal manually. Flushing liquid can be supplied to the drive means - even under pressure - and does not escape from the drive means.
  • a rotary union is used that aligns the cable axially with the drill pipe axis.
  • the cable can be guided through the rotary feedthrough in a substantially centered manner, in particular substantially aligned with the central axis of the drill pipe.
  • the rotary feedthrough has an opening at one end for the cable coming from the cable supply.
  • the rotary feedthrough has a connection that is to be connected to a pipe section of the drill pipe or a new pipe section that is to be connected to the drill pipe that has already been drilled.
  • the connection can rotate with the drill pipe when a rotational movement is imposed on the drill pipe.
  • the connection can be connected directly or indirectly to the drill pipe.
  • connection can be connected to a drive means, in particular in the form of a hollow shaft, which can be rotatably moved from the outside by a drive; and the drive means can be connected to the drill pipe on the other side.
  • the drill pipe can in particular be the inner pipe of a double pipe pipe.
  • the drill pipe can be a "simple" pipe in which there is no internal pipe.
  • the connection on the rotary feedthrough can be designed in particular to form a positive connection with the drill pipe or the drive means or an adapter.
  • the cable supply is arranged at the end on a rotary feedthrough at a distance from the connection that comes into connection with a rod section, indirectly or directly.
  • the cable of the cable supply passes through the rotary feedthrough or the connection from behind or extends at least partially or completely through the rotary feedthrough.
  • the inventors are pursuing a previously counterintuitive approach that allows the cable to extend completely through a rotary feedthrough, even though the cable can be accessed at all times. Access can be reduced, in particular to access only in the area of the end of the newly added or to be added rod section that is spaced from the drill head.
  • the cable can extend, starting from the supply, through the rotary feedthrough and a drive means in the form of a hollow shaft, which is rotationally driven by a drive, without the need for separation or dissolution of the connection in and through the areas mentioned.
  • a traction means is present, which can be designed in particular in the form of a hydraulic motor.
  • the traction means can be designed as a hydraulic cylinder, electric motor, electric cylinder, compressed air-operated motor or cylinder.
  • the traction means can be designed as a spring or spring means or have a spring or a spring means by means of which a spring preload is exerted on the cable in order to keep the cable under tension.
  • the traction device is functionally connected to the cable supply and designed to keep the cable under tension. This can largely prevent the cable from being crushed when connecting the rod sections.
  • the cable can be kept outside the area that is relevant for the mechanical connection of the pipe sections or the sections of the drill pipe.
  • a concentric feed of the cable through the drive means with a tensile load on the cable of the cable supply, in particular combined with a substantially concentric arrangement of the cable in the drill pipe that has already been drilled, can be advantageously used to keep the cable outside of the elements provided for connecting the pipe sections; Cable breakage and/or cable tearing can be avoided.
  • the invention also provides a method according to claim 7.
  • a method for cable-guided earth drilling is described, the method having the step that a pipe section, which is part of a drill pipe drilled in the ground and in which a cable is present, is connected to a further pipe section is connected.
  • a cable with a length of at least two rod sections is provided.
  • a permanent electrical contact of an end of the cable with a length of at least twice the length of a rod section is established during the connection of rod sections. This means that when connecting a new cable for a pipe section to be added or when changing the pipe, the previous cable is separated and only one connection of the cable from the cable supply is necessary to further advance the drill pipe.
  • a use in cable-guided earth drilling is also described in which rod sections are used in which a cable is arranged, with cables of adjacent pipe sections being connected to one another.
  • a cable stock for receiving a cable with a length of at least twice the length of a rod section and a contact device for permanently electrically contacting one end of the cable of the cable stock are used.
  • Figures 1 and 2 show an isometric view from two sides of a section in the area of a rotary feedthrough 1 for drilling fluid of an earth drilling device.
  • the rotary feedthrough 1 has a rotating connection 2, which can be connected to a new rod section to be drilled.
  • the connection 2 can be connected to a rear end of a pipe section to be newly drilled and connect the pipe section to the drill pipe that has already been drilled.
  • the connection 2 defines a drill pipe axis L, which is indicated by a dashed line in the Figure 1 is shown.
  • a cable 3 used for cable-guided drilling is available as a cable supply 4.
  • a contact device 5 is provided on the cable supply 4 and has an electrical contact which is electrically connected to one end of the cable 3 of the cable supply 4.
  • the contact device 5 is further connected to an electrical connection, which forms a connection to a display or a unit that processes a signal that is present on the cable 3.
  • the cable supply 4 is designed as a reel 6, which can hold a cable 3 with a length of at least two rod sections.
  • One end of the cable 3 of the cable supply 4 is guided into the axis L of the connection 2 via a cable feed 7.
  • the cable feed 7 has guide rollers 8 designed as deflection rollers, by means of which the cable 3 can be fed to the connection 2 from behind.
  • the reel 6 is arranged at the end on the rotary feedthrough 1 or the connection 2.
  • the central axis of the reel 6 is concentric to the central axis of the connection 2, which coincides with the drill pipe axis L.
  • the cable 3 is thus guided through the connection 2 and can protrude from the other end of the connection 2 in order to be connected to a cable of an already drilled drill pipe.
  • a seal 9 which can close an opening 10.
  • a cylinder 15 connected to the seal 9 can be pressurized.
  • a traction means 11 is provided, with which the cable supply 4 is functionally connected by means of two meshing gears 12, 13.
  • the traction means 11 is functionally connected to the cable supply in such a way that it can keep the cable 3 of the cable supply 4 under tension.
  • the traction means 11 is designed as a hydraulic motor.
  • a rinsing liquid supply 14 is provided on the rotary feedthrough 1.

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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)
  • Geophysics (AREA)
  • Earth Drilling (AREA)

Claims (7)

  1. Dispositif de forage du sol pour un forage dirigé par câble avec un entraînement pour relier et/ou déplacer des projectiles de tige d'une tige de forage le long d'un axe de tige de forage (L) et une réserve de câble (4) pour recevoir un câble (3) d'une longueur d'au moins deux projectiles de tige et un dispositif de contact (5) pour mettre en contact électrique une extrémité du câble (3) de la réserve de câble (4), caractérisé en ce que l'amenée de câble (7) comprend un passage rotatif (1) qui oriente le câble (3) axialement dans l'axe de la tige de forage et qui comporte à une extrémité une ouverture pour le câble (3) provenant de la réserve de câble (4) et à l'autre côté un raccord (2) qui est relié au projectile de tige de la tige de forage ou à un nouveau projectile de tige, qui doit être relié à la tige de forage déjà percée, la réserve de câble (4) étant disposée à l'extrémité du passage rotatif (1) à distance du raccord (2) qui vient en liaison avec un projectile de tige, de sorte que le câble (3) de la réserve de câble (4) traverse le passage rotatif (1) et le raccord (2) par l' arrière.
  2. Dispositif de forage du sol selon la revendication 1, caractérisé en ce que la réserve de câbles (4) comporte un dévidoir (6).
  3. Dispositif de forage du sol selon la revendication 2, caractérisé en ce que le dévidoir (6) est disposé autour de l'axe (L) de la tige de forage.
  4. Dispositif de forage du sol selon l'une des revendications 1 à 3, caractérisé en ce qu'une amenée de câble (7) comporte au moins un rouleau de guidage (8).
  5. Dispositif de forage du sol selon la revendication 1 à 4, caractérisé en ce que l'amenée de câble (7) est conçue pour une amenée axiale dans l'axe de la tige de forage (L).
  6. Dispositif de forage du sol selon l'une des revendications 1 à 5, caractérisé en ce qu'il existe un moyen de traction (11), notamment sous la forme d'un moteur hydraulique, qui est relié de manière fonctionnelle à la réserve de câble (4) et qui est conçu pour maintenir le câble (3) sous tension.
  7. Procédé de forage du sol dirigé par câble, comprenant l'étape consistant à : relier un projectile de tige, qui fait partie d'un projectile de tige foré dans le sol et dans lequel un câble (3) est présent, à un autre projectile de tige, comprenant les étapes consistant à : fournir un câble (3) ayant une longueur d'au moins deux projectiles de tige et établir un contact électrique permanent d'une extrémité du câble (3) comportant une longueur d'au moins deux projectiles de tige pendant la connexion des projectiles de tige, le câble (3) étant amené au moyen d'une amenée de câble (7) comportant un passage rotatif (1), qui oriente le câble (3) axialement dans l'axe de la tige de forage et qui comporte à une extrémité une ouverture pour le câble (3) provenant de la réserve de câble (4) et à l'autre côté un raccord (2) qui est relié au projectile de tige de la tige de forage ou à un nouveau projectile de tige, qui doit être relié à la tige de forage déjà percée, la réserve de câble (4) étant disposée à l'extrémité du passage rotatif (1) à distance du raccord (2) qui vient en liaison avec un projectile de tige, de sorte que le câble (3) de la réserve de câble (4) traverse le passage rotatif (1) et le raccord (2) par l'arrière.
EP20157358.1A 2019-02-15 2020-02-14 Dispositif de forage du sol pour un forage dirigé par câble, procédé de forage du sol dirigé par câble et utilisation lors du forage du sol dirigé par câble Active EP3696369B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019001109.0A DE102019001109A1 (de) 2019-02-15 2019-02-15 Erdbohrvorrichtung für ein kabelgeführtes Bohren, Verfahren zum kabelgeführten Erdbohren und Verwendung beim kabelgeführten Erdbohren

Publications (2)

Publication Number Publication Date
EP3696369A1 EP3696369A1 (fr) 2020-08-19
EP3696369B1 true EP3696369B1 (fr) 2023-10-25

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US (1) US11359443B2 (fr)
EP (1) EP3696369B1 (fr)
AU (1) AU2020200988B2 (fr)
DE (1) DE102019001109A1 (fr)

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DE102019001109A1 (de) * 2019-02-15 2020-08-20 TRACTO-TECHNlK GmbH & Co. KG Erdbohrvorrichtung für ein kabelgeführtes Bohren, Verfahren zum kabelgeführten Erdbohren und Verwendung beim kabelgeführten Erdbohren
CN113830611B (zh) * 2021-11-25 2022-02-22 徐州徐工基础工程机械有限公司 一种有线导向自动放线装置和方法

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AU2020200988B2 (en) 2022-01-27
DE102019001109A1 (de) 2020-08-20
US20200263509A1 (en) 2020-08-20
AU2020200988A1 (en) 2020-09-03
US11359443B2 (en) 2022-06-14
EP3696369A1 (fr) 2020-08-19

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