WO2010108666A2 - Verfahren zum lokalisieren eines bohrgeräts einer erdbohrvorrichtung - Google Patents
Verfahren zum lokalisieren eines bohrgeräts einer erdbohrvorrichtung Download PDFInfo
- Publication number
- WO2010108666A2 WO2010108666A2 PCT/EP2010/001845 EP2010001845W WO2010108666A2 WO 2010108666 A2 WO2010108666 A2 WO 2010108666A2 EP 2010001845 W EP2010001845 W EP 2010001845W WO 2010108666 A2 WO2010108666 A2 WO 2010108666A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drill
- drilling
- locating
- signal
- earth
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005553 drilling Methods 0.000 claims description 56
- 239000002184 metal Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000004807 localization Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/024—Determining slope or direction of devices in the borehole
-
- 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
- E21B47/0232—Determining slope or direction of the borehole, e.g. using geomagnetism using electromagnetic energy or detectors therefor at least one of the energy sources or one of the detectors being located on or above the ground surface
-
- 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 a method for locating a drill of a Erdbohrvorraum.
- Horizontal wells are introduced in particular in the context of trenchless laying and trenchless Auswechseins of supply lines, such as fresh and sewer pipes, telecommunications cables, etc. in the soil and often extend from a starting pit to a target pit.
- supply lines such as fresh and sewer pipes, telecommunications cables, etc.
- the drill can be redirected even after the horizontal section of the bore course, this time in the direction of the earth's surface, so that it again emerges from the ground at the earth's surface. It is obvious that to produce such a non-linear
- BESTATIGUNGSKOPIE Drilling course controllable drills are required. However, even if starting from a starting pit straight to a target pit to be drilled, the use of controllable drills may be useful; In this case, the drill often encounters an obstacle during drilling, such as a rock that can not be drilled, or even an already laid supply line (eg, water, gas or electricity), which must not be damaged. In such a case, it is necessary to "bypass" the obstacle by reversing the auger, but this requires accurate location of the rig, and particularly the bit of that auger.
- an obstacle during drilling such as a rock that can not be drilled, or even an already laid supply line (eg, water, gas or electricity), which must not be damaged.
- it is necessary to "bypass" the obstacle by reversing the auger but this requires accurate location of the rig, and particularly the bit of that auger.
- a burying device located in the ground of an earth boring device can be located.
- the known systems each have a transmitter which is arranged within the drill head or in another section of the drill of the earth boring device, which should be as close as possible to the drill head.
- the transmitter transmits a locating signal which is received by a receiver arranged on the earth's surface.
- the receiver evaluates the received location signal to determine the position of the sensor and thus the wellhead within the earth.
- the drilling apparatus has a magnetic dipole in the region of the drill head, which is driven in rotation together with the drilling apparatus of the earth drilling apparatus.
- the magnetic field emitted by the magnetic dipole is detected by a receiving unit arranged on the earth's surface as a changing magnetic field, from which the
- Position of the magnetic dipole and its location can be determined; from the fixed arrangement of the magnetic dipole with respect to the drill head, the position and orientation of the drill head result directly from this.
- systems are known from the prior art, which provide instead of a rotating magnetic dipole one or more coils, which are acted upon to generate the time-varying magnetic field with an AC voltage.
- the transmitters arranged in the drills are designed as active transmitters in the known systems, ie they generate the respective locating signal either permanently without the supply of an external signal or of energy (for example the previously described written on a permanent magnet-based system), or they are supplied with electrical energy and generate the locating signal by a corresponding conversion of electrical energy.
- the supply of energy to the transmitter is carried out regularly by means of batteries, wherein it has also been proposed to be in the region of the drill head arranged Minigenerator means of a rinsing liquid, which is otherwise intended to be introduced into the soil to improve the Bohrvortrieb and the cuttings from redesignschwemmen the drilling, drive to eliminate the associated with the replacement of the batteries maintenance.
- the object of the invention was to provide a method, at least with regard to one of these disadvantages, for locating a drilling device of an earth boring device.
- a corresponding system for locating a drill of a Erdbohrvorraum should be specified.
- the invention is based on the idea that the locating signal is no longer generated by a transmitter arranged in the area of the drilling device and in particular a drill head of this drilling device, but instead provides a corresponding signal generating device outside the drilling device, and the corresponding locating signal from the external signal generating device via a Conduit to conduct to the ground drilling rig, from which this is sent out into the surrounding soil, so that it can be received by a corresponding external receiver and evaluated to determine the position of the drill.
- This makes it possible to no longer have to integrate the possibly technically complicated and therefore possibly a considerable amount of space having signal generating means in the drill, but this can be outside of the drill and preferably on the earth's surface.
- this can be combined with one or more other elements of the earth boring direction, eg an oiler, are integrated into a housing so that no additional component must be positioned on the construction site.
- the invention not only the integration of the signal generating device is avoided in the drill itself, but the signal generating device is also located in an area where this in front of the sometimes considerable loads that during the drilling operation on the
- Drill is protected.
- the invention makes it possible to retrofit existing Erdbohrvoriquesen with little effort with a corresponding localization system.
- an output signal generated by a signal generating device is then fed to the drilling device via a connecting line which is connected to the drilling device, which is converted by the drilling device and in particular in the region of a drill head of the drilling device into a locating signal which, in turn, is transmitted by it so as to be received by an external receiver and to
- Determining the position of the drill and in particular the drill head can be evaluated.
- a "conversion" of the output signal into a locating signal does not require that the output signal and the locating signal have to differ in their type It is only relevant here that the output signal and the locating signal can be distinguished for the receiver, so that in fact locating the signal Such a distinction is, of course, only possible if the output signal and the locating signal differ in some way.
- a "conversion" of the output signal into a locating signal is therefore also present if, for example, in its nature identical output and locating signal detection of the output signal is prevented by the receiver, so that only the locating signal is received by this. This can be done for example by a corresponding shielding of the connecting line.
- Another way to distinguish between the output and the locating signal may be that, for example, in a not only from the drill or drill head itself, but also emitted by the connection line locating the drill or the drill head is detected by the fact that the transmission of the Locating signal ends at the front end, which can be detected by the receiver.
- a corresponding system for locating a drilling device of an earth boring device has at least one receiver for receiving and evaluating a locating signal emitted by the drill at least in addition to the drilling device, as well as a signal generating device connected to the drilling device via a boring device
- the receiver can, of course, also be constructed in several parts, ie for example with a receiving unit and an evaluation unit, which can also be positioned at a distance from one another (eg the receiving unit in one embodiment as a so-called "walk-over" receiver, ie a portable receiver , which is positioned above the drill, and an evaluation unit, which may be arranged in the region of a control station of the Erdbohrvorraum).
- a receiving unit and an evaluation unit which can also be positioned at a distance from one another (eg the receiving unit in one embodiment as a so-called "walk-over" receiver, ie a portable receiver , which is positioned above the drill, and an evaluation unit, which may be arranged in the region of a control station of the Erdbohrvorraum).
- drilling apparatus is understood to mean that component of an earth-boring apparatus by which the soil is degraded or displaced, but the term “drilling apparatus” is not intended to be so narrow that only a tool arranged at the front is understood to mean a “drilling apparatus”.
- the term “drill” may also include a complete drilling unit, such as an earth rocket (i.e., a self-propelled pneumatic ram boring machine).
- a supply line which is connected to the drill.
- “Supply line” is understood to mean any line (eg linkage, pipe, hose, cable, etc.) via which signals or energy are transmitted to the drilling device or via which forces and torques can be transmitted, in particular drill pipes and hoses for the supply a fluid (in particular for the operation of Erdraketen) and cables for example an electrical power supply.
- the method according to the invention it is provided to generate as an output signal a current flow through the drilling device caused by an electrical voltage (in particular AC voltage), whereby a magnetic field is generated as a locating signal from the usually metallic drilling device.
- an electrical voltage in particular AC voltage
- the connecting line and the drill are at least partially electrically conductive, so that in response to the current caused by the (alternating) voltage current flow, a corresponding magnetic field is generated (corresponding to a conductor through which a current flows through the magnetic field).
- the system according to the invention can be implemented in a structurally simple manner; It only needs a corresponding, a (alternating) voltage generating signal generating device, which in turn can be realized even structurally simple and also available on the market, since they are for Other applications can be used, as well as a receiver, by means of which the generated magnetic field can be detected and evaluated.
- a drilling rig of an earth boring device regularly consists of a metal and in particular of steel, it is only necessary to provide for an electrical connection between the drilling rig and the signal generating device via a corresponding connecting line. If the drill is connected to a drill string, which is usually also made of a metal and especially steel, the electrical conductivity of serving as a connecting pipe drill string is usually already given.
- the coupling of the signal generating device to the connecting line can for example be done directly (galvanic) or inductively.
- the compressed air hose itself can be formed electrically conductive, what this can be provided for example with a metal and in particular steel reinforcement.
- an electrically conductive connection should be provided between the compressed air hose and the housing of the earth rocket.
- An alternative embodiment may provide parallel to the compressed air line carry an electrically conductive cable and in particular a steel cable, via which the output signal is transmitted. The cable can be carried both outside and inside the supply line (in particular the compressed air line) of the Erdrakete.
- the connecting line In an electrically conductive design of the connecting line, this can also be used for the transmission of additional signals.
- one or more sensors may be arranged in the region of the drilling device and in particular of the drill head of the drilling device, the measured values of which are transmitted via the electrically conductive connecting line to an external display device, especially on the earth's surface, where the measured values can be displayed graphically .
- a signal device eg warning light, warning horn
- an operator of the Erdbohrvorides signals the impact of the drill or drill head on the current-carrying line.
- the measured values of the sensor can also be used for an automatic disconnection of the earth boring device in the event of the drilling device or the boring head hitting the current-carrying line.
- the invention is, of course, not limited to the conversion of a current flow generated by a (voltage) voltage into a magnetic field, but encompasses all methods or systems encompassed by the independent patent claims in which an output signal from the drill device is supplied via a connecting line the drill is converted into a corresponding locating signal, which can then be received by a corresponding receiver and evaluated to determine the position of the drill.
- the transmission of sound waves may be provided (eg via the operating pressure air of a drill or the drilling fluid of the earth drilling device), which are converted by the drilling device into corresponding body vibrations, which in turn are transmitted to the earth and received and evaluated by a corresponding receiver can.
- Figure 1 is a schematic representation of an inventive system in a first embodiment.
- FIG. 2 shows a schematic representation of a system according to the invention in a second embodiment
- FIG. 3 is a schematic representation of the propagation of a magnetic field in the radial direction in a system according to FIG. 1 or FIG. 2.
- Fig. 1 shows a system according to the invention for locating a drilling device of an earth boring device.
- the drill is a so-called ground rocket 1, ie a self-propelled ram boring machine with an internal, operated by compressed air percussion piston, which impinges at each cycle of the compressed air caused by reciprocating motion on a face of a drill head 2 or a housing 3 of the earth rocket 1 and thereby transmits its kinetic energy to the drill head 2, so that the Erdrakete 1 is gradually advanced through the soil 4.
- the compressed air required for the operation of the Erdrakete 1 this is supplied via a compressed air hose 5 from a arranged on the earth's surface compressed air supply unit (not shown).
- the further structure and operation of an earth rocket 1 are known from the prior art.
- the illustrated system according to the invention further comprises a signal generating device, which is an AC voltage generator 6; the structure and operation of an AC generator are known from the prior art.
- the alternating voltage generator 6 is connected via a connecting line, in the present case a cable 7, which is guided through the compressed air hose 5, to the housing 3 of the earth rocket 1.
- the AC voltage generated by the AC voltage generator 6 causes a constantly changing current flow through the cable 7 and the existing steel housing 3 and the existing steel drill head 2 of the earth rocket 1, which in turn induces a magnetic field which is annular around the longitudinal axis of the Erdrakete
- a so-called "walk-over" receiver 8 is used, i.e. a portable receiver
- Walk-over receivers are known in the art.
- the "walk-over" receiver Shortly before the tip of the drill head 1 ends the magnetic field generated by the current flowing through the housing or the drill head; this can be detected by the "walk-over" receiver as a signal drop, whereby the position of the drill head tip of the earth rocket 1 can be located relatively precisely, which is particularly advantageous for determining the course of the drill.
- FIG. 2 shows a system according to the invention for locating a drilling device of an earth boring device, in which, compared to the embodiment according to FIG.
- Fig. 1 only the leadership of the current-carrying cable T is changed.
- the cable 7 ' is guided outside next to the compressed air hose 5'.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (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
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1116912.5A GB2480795B (en) | 2009-03-25 | 2010-03-24 | Method for locating a drilling device of an earth drilling apparatus |
US13/259,609 US9151151B2 (en) | 2009-03-25 | 2010-03-24 | Method for localizing a drilling device of an earth drilling apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009014887.6 | 2009-03-25 | ||
DE102009014887A DE102009014887B4 (de) | 2009-03-25 | 2009-03-25 | Verfahren und System zum Lokalisieren eines Bohrgeräts einer Erdbohrvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010108666A2 true WO2010108666A2 (de) | 2010-09-30 |
WO2010108666A3 WO2010108666A3 (de) | 2010-11-25 |
Family
ID=42664046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/001845 WO2010108666A2 (de) | 2009-03-25 | 2010-03-24 | Verfahren zum lokalisieren eines bohrgeräts einer erdbohrvorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US9151151B2 (de) |
DE (1) | DE102009014887B4 (de) |
GB (1) | GB2480795B (de) |
WO (1) | WO2010108666A2 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9651711B1 (en) * | 2012-02-27 | 2017-05-16 | SeeScan, Inc. | Boring inspection systems and methods |
US11473418B1 (en) | 2020-01-22 | 2022-10-18 | Vermeer Manufacturing Company | Horizontal directional drilling system and method |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3406766A (en) * | 1966-07-07 | 1968-10-22 | Henderson John Keller | Method and devices for interconnecting subterranean boreholes |
US4460059A (en) * | 1979-01-04 | 1984-07-17 | Katz Lewis J | Method and system for seismic continuous bit positioning |
US5264795A (en) * | 1990-06-18 | 1993-11-23 | The Charles Machine Works, Inc. | System transmitting and receiving digital and analog information for use in locating concealed conductors |
US5258755A (en) * | 1992-04-27 | 1993-11-02 | Vector Magnetics, Inc. | Two-source magnetic field guidance system |
US5585726A (en) * | 1995-05-26 | 1996-12-17 | Utilx Corporation | Electronic guidance system and method for locating a discrete in-ground boring device |
DE102004058272A1 (de) * | 2003-12-08 | 2005-06-30 | Rayonex Schwingungstechnik Gmbh | Instrument und Verfahren zum Lokalisieren eines Instruments |
US7775301B2 (en) * | 2007-08-07 | 2010-08-17 | Martin Technology, Inc. | Advanced steering tool system, method and apparatus |
US8381836B2 (en) * | 2010-01-19 | 2013-02-26 | Merlin Technology Inc. | Advanced underground homing system, apparatus and method |
-
2009
- 2009-03-25 DE DE102009014887A patent/DE102009014887B4/de not_active Expired - Fee Related
-
2010
- 2010-03-24 WO PCT/EP2010/001845 patent/WO2010108666A2/de active Application Filing
- 2010-03-24 US US13/259,609 patent/US9151151B2/en active Active
- 2010-03-24 GB GB1116912.5A patent/GB2480795B/en active Active
Non-Patent Citations (1)
Title |
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None |
Also Published As
Publication number | Publication date |
---|---|
GB2480795A (en) | 2011-11-30 |
DE102009014887A1 (de) | 2010-09-30 |
GB201116912D0 (en) | 2011-11-16 |
DE102009014887B4 (de) | 2011-07-28 |
US20120098675A1 (en) | 2012-04-26 |
WO2010108666A3 (de) | 2010-11-25 |
DE102009014887A8 (de) | 2011-06-01 |
US9151151B2 (en) | 2015-10-06 |
GB2480795B (en) | 2014-01-01 |
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