WO2003080988A2 - Tete de forage pour le forage horizontal commande - Google Patents

Tete de forage pour le forage horizontal commande Download PDF

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Publication number
WO2003080988A2
WO2003080988A2 PCT/EP2003/003202 EP0303202W WO03080988A2 WO 2003080988 A2 WO2003080988 A2 WO 2003080988A2 EP 0303202 W EP0303202 W EP 0303202W WO 03080988 A2 WO03080988 A2 WO 03080988A2
Authority
WO
WIPO (PCT)
Prior art keywords
drill head
drilling
transmitter
head according
drill
Prior art date
Application number
PCT/EP2003/003202
Other languages
German (de)
English (en)
Other versions
WO2003080988A3 (fr
Inventor
Hans-Joachim Bayer
Elmar Koch
Meinolf Rameil
Original Assignee
Tracto- Technik 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
Priority claimed from DE10309144A external-priority patent/DE10309144A1/de
Application filed by Tracto- Technik Gmbh filed Critical Tracto- Technik Gmbh
Priority to AU2003226728A priority Critical patent/AU2003226728A1/en
Publication of WO2003080988A2 publication Critical patent/WO2003080988A2/fr
Publication of WO2003080988A3 publication Critical patent/WO2003080988A3/fr

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/046—Directional drilling horizontal 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
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • E21B47/0228—Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor
    • 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

Definitions

  • the invention relates to a drill head and a method for controllable horizontal drilling.
  • the present invention is therefore based on the object of providing a possibility of capturing the surroundings of a drill head for controllable horizontal drilling as precisely as possible.
  • a drill head for controllable horizontal drilling which has an impulse transmitter or wave transmitter and a wave receiver.
  • the arrangement of the wave transmitter and wave receiver on the drill head has the advantage that the detection takes place directly from the ground and thus the exploration of the surroundings in front of the drill head is much more precise than from the surface of the earth.
  • a radar transmitter or receiver is preferably used; pulse radar is particularly preferably used.
  • the invention for the use of radar is to be described below without being limited thereto.
  • the use of radar from the ground out of the boring head being driven enables in particular the use of higher frequencies than for examinations from the earth's surface. Although these higher frequencies have a lower penetration depth, they achieve a higher resolution of the ground.
  • the large penetration depths of several meters are not absolutely necessary for direct installation in the drill head, since it is not necessary to penetrate the soil above the course of the drill line, but only the area in front of the drill head can be explored.
  • use in highly conductive layers is also possible, since the layer thickness to be penetrated is less than when using the surface. This results in a very high resolution of the area in front of the drill head and thus a much more precise detection of the subsurface than is possible from the surface of the earth.
  • a radar pulse transmitter and receiver is arranged on the drill head of a horizontal drilling system, for example installed in the latter.
  • An electromagnetic pulser in the transmission antenna or antennas can serve as the source for the radar pulses emitted.
  • the radar signals emitted wave out in the underground and are reflected by structures or obstacles in the ground.
  • the receiving antenna measures the transit times and amplitudes of the electric field strength.
  • the transmitter and receiver are preferably arranged in the front area of the drill head, so that in particular the pulses are emitted in the direction of advance of the bore. This advantageously has the effect that the earth area (apron area) located in front of the drill head is precisely explored and specifically recorded. This advantageously enables a much higher resolution and thus the accuracy of the detection of the soil in front of the drill head.
  • the transmitter and receiver can be combined in one component. This offers advantages in terms of installing the unit in the drill head.
  • the penetration depth of the radar depends on the frequency of the antenna used, the physical parameters of the subsurface and other conditions. In an embodiment with antennas of different frequencies, resolutions of different depths can therefore advantageously be achieved. Depending on the frequency selected, either greater depths of penetration or more precise resolutions can be achieved.
  • the penetration depth should preferably be more than one meter, particularly preferably one to several meters, in order to be able to reverse any obstacles at an early stage.
  • Frequency ranges to be used preferably according to the invention che are approximately 300 to 1200 MHz, particularly preferably approximately 700 to 1000 MHz.
  • an antenna set with antennas of different frequencies is assigned to the drill head according to the invention.
  • it can advantageously be chosen which antenna is best suited for which soil. It is therefore advantageous to arrange the radar pulse transmitter and receiver unit so that they are easily accessible on the drill head in order to ensure a quick and effortless exchange of the antennas.
  • the antenna is particularly preferably provided in an extension spur, preferably an extension spur arranged on the drill head front or drill head nose.
  • the received data is transmitted to a storage and evaluation device by means of a cable line which is guided in the drill pipe.
  • the cable routing in the drill pipe has the advantage that it is guided protected against mechanical damage.
  • the storage and evaluation device is preferably a computer which stores the received data and, if necessary, processes it.
  • the data obtained can be displayed graphically in the form of a radar program.
  • the memory and evaluation device can be connected to a monitor, so that the generated data can be easily checked.
  • Wireless data transmission through the ground is also possible according to the invention.
  • the necessary electrical power can then be provided by a battery or a generator driven by the flushing.
  • the data evaluation takes place successively with the drilling progress, so that a direct feedback to the control station of the drilling system takes place. So can in terms of control technology, they are immediately reacted to current underground conditions.
  • a particular advantage of the present invention lies in the acquisition of a spatial image of the soil and the structures which may run in the soil and which are located in the vicinity of the planned drill route. Necessary safety distances to obstacles such as cables, pipelines, wall structures, or upcoming difficulties in the subsoil can be recognized in good time and dealt with or dealt with with the necessary tunneling parameters. This makes it possible for the first time to specifically control, steer and counter-react to the background, and property damage, open excavations or the like can be avoided in an advantageous manner.
  • the invention is therefore of particular advantage in trench technology, in particular in the course-controlled horizontal drilling technology and trenchless line laying.
  • markers are laid out on the surface of the earth which reflect the waves emitted by the drill head.
  • markers made of dielectric materials are preferably laid out on the surface of the earth. These are preferably designed like a mat or tarpaulin, so that they can also be rolled up and transported, for example in a space-saving manner, and only rolled out at the drilling point.
  • This has the advantage that a particularly good radar reflector assignment of the detection area is possible upwards. This advantageously enables the space to be captured to be limited.
  • the invention also provides a method in which a drill head according to the invention is used to determine the surroundings of the drill head, in particular the area directly in front of the drill head, with a high resolution.
  • a spatial orientation of the drill head is also possible. If the position of the marker is exactly known, the exact position of the drill head in the subsurface can be calculated from the running time of the waves up to the marker and back. Thus, the installation of a radar transmitter and receiver unit can also serve as a location system for the drill head.
  • Fig. 1 shows a schematic representation of the operation of the drill head according to the invention.
  • FIG. 1 shows a horizontal drilling rig with a carriage 1, which is located on the earth's surface 2. This one with a rotary and
  • the drill head 4 has already been introduced into the soil 5 via a starting pit 3.
  • the drill head is a steerable inclined surface drill head.
  • a radar transmitter and receiver unit 7 is arranged in the front area 6 of the drill head 4 and transmits radar pulses 8 in the direction of advance of the drill head identified by an arrow 9.
  • the transmitted radar signals 8 propagate in a wave-like manner and are reflected on obstacles 10 and picked up by the receiver unit arranged in the transmitting and receiving device 7.
  • the data is transferred using a
  • the data becomes too transferred to a storage and evaluation device 13.
  • the evaluation of the recorded data takes place successively with the drilling progress, so that a direct feedback to the control station of the drilling rig can take place.
  • a spatial image of the soil in front of the drilling head 4 can be created, wherein elements and structures, such as the obstacle 10 shown, can be detected in the subsurface at the same time.
  • the targeted radar detection enables the surroundings of the planned course of the drill route to be determined precisely and, if necessary, necessary safety clearances to any obstacles or upcoming difficulties in the subsurface can be reversed or the drilling parameters can be adapted to the subsurface conditions.
  • plate-like or mat-like markers made of dielectric materials can be laid out on the earth's surface 2. This enables a particularly good radar-reflective assignment of the detection space upwards through the limitation given by the markers.

Landscapes

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

Abstract

Tête de forage pour le forage horizontal commandé, à l'aide de laquelle la zone se trouvant en avant de la tête de forage dans le sol peut être explorée. Selon la présente invention, la tête de forage possède un émetteur d'ondes et un récepteur d'ondes. L'avantage de ladite tête de forage est de permettre la détection de la zone se trouvant en avant de la tête de forage directement à partir du sol et l'exploration de la zone environnante située en avant de la tête de forage avec une haute résolution.
PCT/EP2003/003202 2002-03-27 2003-03-27 Tete de forage pour le forage horizontal commande WO2003080988A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003226728A AU2003226728A1 (en) 2002-03-27 2003-03-27 Drill head and method for controlled horizontal drilling

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10213770.6 2002-03-27
DE10213770 2002-03-27
DE10309144.0 2003-02-28
DE10309144A DE10309144A1 (de) 2002-03-27 2003-02-28 Bohrkopf und Verfahren für das steuerbare Horizontalbohren

Publications (2)

Publication Number Publication Date
WO2003080988A2 true WO2003080988A2 (fr) 2003-10-02
WO2003080988A3 WO2003080988A3 (fr) 2003-12-24

Family

ID=28455546

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/003202 WO2003080988A2 (fr) 2002-03-27 2003-03-27 Tete de forage pour le forage horizontal commande

Country Status (2)

Country Link
AU (1) AU2003226728A1 (fr)
WO (1) WO2003080988A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9732559B2 (en) 2008-01-18 2017-08-15 Halliburton Energy Services, Inc. EM-guided drilling relative to an existing borehole
GB2561986A (en) * 2017-04-26 2018-10-31 Tracto Technik Paul Schmidt Spezialmaschinen Drill head for earth boring, drilling device for earth boring having the drill head, and method to detect objects while earth boring
NL2019554B1 (en) * 2017-09-15 2019-03-27 Heijmans N V Horizontal probing method for probing suspect soil, i.e. soil possibly containing suspect objects
US11242745B2 (en) 2017-04-26 2022-02-08 Tracto-Technik Gmbh & Co. Kg Drill head for earth boring, drilling device for earth boring having the drill head, method to detect objects while earth boring, and use of direct digital synthesizer as a signal in detecting an obstacle in earth boring
EP4357584A1 (fr) * 2022-10-21 2024-04-24 TRACTO-TECHNIK GmbH & Co. KG Procédé d'introduction d'un canal de forage dans le sol au moyen d'un dispositif de forage du sol et dispositif de forage du sol destiné à l'introduction d'un canal de forage dans le sol

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101460698B (zh) 2006-12-15 2013-01-02 哈里伯顿能源服务公司 具有旋转天线结构的天线耦合元件测量工具
WO2010059275A1 (fr) 2008-11-24 2010-05-27 Halliburton Energy Services, Inc. Outil de mesure diélectrique à haute fréquence
CA2800148C (fr) 2010-06-29 2015-06-23 Halliburton Energy Services, Inc. Procede et appareil pour detecter des anomalies souterraines allongees
CA2831277C (fr) 2011-04-18 2017-07-25 Halliburton Energy Services, Inc. Systemes et procedes utilisant des radars a composants multiples pour puits de forage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3740700A1 (de) * 1987-12-01 1989-06-15 Nicolaas Wilh J Van Dip Egmond Messverfahren zum orten von bohrhindernissen und fremdkoerpern im erdreich
WO2001048353A1 (fr) * 1999-12-27 2001-07-05 Ball Corporation Foreur omnidirectionnel autonome

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3740700A1 (de) * 1987-12-01 1989-06-15 Nicolaas Wilh J Van Dip Egmond Messverfahren zum orten von bohrhindernissen und fremdkoerpern im erdreich
WO2001048353A1 (fr) * 1999-12-27 2001-07-05 Ball Corporation Foreur omnidirectionnel autonome

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9732559B2 (en) 2008-01-18 2017-08-15 Halliburton Energy Services, Inc. EM-guided drilling relative to an existing borehole
GB2561986A (en) * 2017-04-26 2018-10-31 Tracto Technik Paul Schmidt Spezialmaschinen Drill head for earth boring, drilling device for earth boring having the drill head, and method to detect objects while earth boring
US11242745B2 (en) 2017-04-26 2022-02-08 Tracto-Technik Gmbh & Co. Kg Drill head for earth boring, drilling device for earth boring having the drill head, method to detect objects while earth boring, and use of direct digital synthesizer as a signal in detecting an obstacle in earth boring
NL2019554B1 (en) * 2017-09-15 2019-03-27 Heijmans N V Horizontal probing method for probing suspect soil, i.e. soil possibly containing suspect objects
EP4357584A1 (fr) * 2022-10-21 2024-04-24 TRACTO-TECHNIK GmbH & Co. KG Procédé d'introduction d'un canal de forage dans le sol au moyen d'un dispositif de forage du sol et dispositif de forage du sol destiné à l'introduction d'un canal de forage dans le sol
EP4357583A1 (fr) * 2022-10-21 2024-04-24 TRACTO-TECHNIK GmbH & Co. KG Procédé d'introduction d'un canal de forage dans le sol au moyen d'un dispositif de forage du sol et dispositif de forage du sol destiné à l'introduction d'un canal de forage dans le sol

Also Published As

Publication number Publication date
AU2003226728A1 (en) 2003-10-08
WO2003080988A3 (fr) 2003-12-24

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