EP2483522A2 - Élément de forage d'un dispositif de sondage - Google Patents

Élément de forage d'un dispositif de sondage

Info

Publication number
EP2483522A2
EP2483522A2 EP10763607A EP10763607A EP2483522A2 EP 2483522 A2 EP2483522 A2 EP 2483522A2 EP 10763607 A EP10763607 A EP 10763607A EP 10763607 A EP10763607 A EP 10763607A EP 2483522 A2 EP2483522 A2 EP 2483522A2
Authority
EP
European Patent Office
Prior art keywords
transmitter
drilling element
receptacle
housing
drilling
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
EP10763607A
Other languages
German (de)
English (en)
Other versions
EP2483522B1 (fr
Inventor
Franz-Josef Püttmann
Peter Grass
Gerhard Völkel
Andreas Riekes
Frank Prutti
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
Original Assignee
Tracto Technik GmbH and Co KG
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 Tracto Technik GmbH and Co KG filed Critical Tracto Technik GmbH and Co KG
Publication of EP2483522A2 publication Critical patent/EP2483522A2/fr
Application granted granted Critical
Publication of EP2483522B1 publication Critical patent/EP2483522B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • E21B47/017—Protecting measuring instruments
    • 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 drilling element of a Erdbohrvorraum with a housing and arranged in a receptacle of the housing transmitter.
  • HorizontalDbohrvoriquesen are known in which a front of a drill pipe arranged drill head is propelled by means of a arranged in a pit, a shaft or on the earth's surface driving and rotating rotating through the soil.
  • a controllability in such a horizontal boring device is achieved in that the drill head is formed asymmetrically, for example with an oblique face, so that when a purely sliding, ie non-rotating driving the drill head, a side force is generated, which leads to the desired lateral deflection of the drill head leads.
  • this lateral force is compensated on average by additionally driving the drill head in a uniformly rotating manner.
  • a drill head for such a rod-based horizontal drilling device is disclosed for example in DE 195 34 806 A1.
  • This includes a designated as a steering head inclined drilling head and an adjoining housing, in which a receptacle is provided for a transmitter.
  • the housing is provided with an external thread, with which this can be screwed to a first rod section of the drill string.
  • the transmitter is movably mounted within the receptacle of the cylindrical housing in its longitudinal axial direction and abuts with its two ends to a respective buffer, which serve to the generated by the exertion of the blows on the drill string relative movement of the transmitter within the receptacle of the housing dampen. In this way, the amount of force pulses acting on the transmitter, can be significantly reduced, which is necessary insofar as it is regularly in such a transmitter is a sensitive electronic component.
  • a structurally similar integration of a transmitter in an earth rocket is known for example from DE 198 23 629 A1. It is intended to retrofit an earth rocket with a drill head, in which the transmitter is integrated. There is also provided to embed the transmitter in the corresponding receptacle in the drill bit of Bohrkopfaufsatzes end between two damping elements. It has been found in prior art earth boring devices with integrated transmitters that it is not always possible to achieve a sufficient reduction of the impact load of the transmitters and that these are consequently damaged by the operation of the striking earth boring device.
  • the invention therefore an object of the invention to provide an improved integration of a transmitter in a Erdbohrvorraum. This object is solved by the subject matter of the independent claim.
  • the essence of the invention lies in further reducing the height of the forces transmitted to the transmitter from a housing of the earth boring device, into which the transmitter is integrated, in that the latter is suspended in an exclusively elastic-damping manner by pulling.
  • the transmitter is connected within a receptacle of a housing of a drilling element of a Erdbohrvorraum in which it is movably supported in the longitudinal axial direction (of the drilling element), via a front-side buffer to the housing, that the transmitter at a back
  • a "drilling element" of an earth boring device may be any material that is used to drill a drill. It has been found that an attenuation of the impact pulses which is improved in comparison with the two-sided embedding known from the prior art in two damper elements can be achieved by exclusively pulling elastically damping suspension of the transmitter in the housing of the drilling element.
  • a "drilling element" of an earth boring device may be any material that is used to drill a backward displacement in the receptacle, made possible by a deformation of the buffer, without it striking directly against an element of the drilling element.
  • a “buffer” is a component which, by deformation, converts the kinetic energy of a component connected thereto (in this case the transmitter) and thereby reduces the magnitude of the transmitted forces
  • a buffer can according to the invention be used exclusively as a spring element and exclusively as a spring
  • a buffer according to the invention is a combined spring-damper element.
  • Front-side or “forward” is understood according to the invention to mean a location which depends on the respective element in the direction of the drill-front and consequently extends the front of the Erdbohrvorides. Accordingly, “backward” or “backwards” refers to a direction that extends from the drilling front or the front of the earth boring device in the direction of the already created bore.
  • this is designed as a drill head. It can thereby be achieved that the transmitter, which is arranged in a receptacle of the housing of the drilling element, is arranged as far as possible at the front end of the Erdbohrvorraum, whereby the positioning accuracy can be improved.
  • the drilling element according to the invention can be provided to provide an additional back buffer, which is arranged so that the transmitter deforms this only after a defined backward displacement in the receptacle (which can be very small).
  • the back buffer may then be used, for example. act by damping a damping when unexpectedly high impact forces are exerted on the drilling element, which lead to a correspondingly high displacement of the transmitter in the recording.
  • the drilling element according to the invention may further comprise an integrated into the drilling element power supply for the transmitter.
  • This can prevent the transmitter from having to be connected to an external power supply via an electrically conductive connection.
  • Such a connection to an external power supply has frequently been found to be susceptible to interference in the earth boring devices known from the prior art.
  • An integrated power supply for the transmitter can preferably be done via batteries, with other possibilities for power supply are possible.
  • a turbine driven by a drilling fluid or by compressed air may be connected to a generator which generates the corresponding energy for the operation of the transmitter.
  • the receptacle in the housing of the drilling element is accessible from the outside, so that the transmitter and possibly also the power supply can be used and replaced again without having to disassemble the auger itself.
  • the opening required for accessibility in the housing of the drilling element is preferably closable by means of a closure element.
  • the closure element is easily fixable and detachable, whereby maintenance work on the transmitter and the preferably provided integrated power supply can be simplified.
  • a particularly preferred embodiment can be provided to form the receptacle as a front hole in the drilling element. This can be avoided that an opening in the shell of the drilling element must be introduced.
  • a front bore for receiving the transmitter can preferably be provided as a closure element closure plug, which is further preferably held by clamping in the bore.
  • This can be done for example by means of a conical sealing plug, which in turn is held in a corresponding conical receiving the bore.
  • At least the closure element, the buffer and the transmitter are connected to each other, so that they can be introduced as a transmitter unit in the drilling element and also removed from this again.
  • the assembly and disassembly of the transmitter unit is considerably simplified during maintenance. If an integrated power supply and / or a back buffer are provided, these may preferably also be integrated in the transmitter unit.
  • FIG. 1 shows a drill head according to the invention in an isometric view
  • Fig. 2 the drill head of Fig. 1 in a sectioned time view.
  • FIGS. 1 and 2 show a boring head according to the invention in a first embodiment.
  • This drill head is intended to be used as part of an earth rocket, including this with a housing of the Erdrakete (not shown) is screwed.
  • the drill head comprises a cylindrical housing 1, which is designed in two parts, wherein the two housing parts are displaceable in the longitudinal axial direction over a certain distance from each other.
  • a front housing part 2 is displaceably mounted on a rear housing part 3, wherein this bearing is sealed by a sealing ring 4.
  • a piston 5 which extends over a total of four transverse pins 6, which can be inserted through corresponding openings in the housing, with the front
  • Housing part 2 is connected.
  • the bearing of the piston 5 within the rear Housing part 3 is also designed to be displaceable in the longitudinal axial direction, wherein the rear housing part 3 and the piston 5 are supported by a cylindrical coil spring 7 against each other.
  • the rear housing part further has an external thread 8, with which the drill head can be screwed into a corresponding internal thread of the Erdraketengephaseuses.
  • the free end of the piston 5 projects into a striking space of the earth rocket, in which a percussion piston driven in a known manner by means of compressed air is driven in a cyclical back-and-forth motion.
  • the forward stroke of the percussion piston is thereby slowed down and terminated, that this impinges on the free end of the piston 5 and accelerates it in the direction forward.
  • This acceleration of the piston 5 is transmitted directly to the front housing part 2 of the drill head, whereby it creates the hole step by step.
  • the front housing part 2 of the drill head consists of a first section, designated as a drill mandrel 10, which has a substantially constant outside diameter. This is followed by a conical widening section 11 formed in a stepped shape, which serves to widen the borehole 10 predrilled bore to the desired diameter.
  • the drill mandrel 10 is made hollow and thus forms a receptacle for a transmitter 12, by means of which the drill head can be located by means of a receiving unit (not shown) arranged on the earth's surface.
  • the transmitter 12 which likewise has a cylindrical shape, is in principle mounted slidably in the receptacle in the longitudinal axial direction (of the drill head and of the transmitter 12), for which purpose a guide bush 13 is integrated into the drill mandrel 10, the material of which is selected such that it on the one hand causes no or only a small shielding of the signals emitted by the transmitter 12 and on the other hand has only a small coefficient of friction with the material of the transmitter 12.
  • the transmitter 12 is connected via a fixing sleeve 14 with a front buffer 15. This is also movably mounted in a portion of the receptacle within the drill mandrel 10.
  • the drill head according to the invention is further provided with a rear buffer 17, which is arranged in the unloaded state of the drill head in a defined, albeit very small distance from the rear end of the transmitter 12.
  • a rear buffer 17 which is arranged in the unloaded state of the drill head in a defined, albeit very small distance from the rear end of the transmitter 12.
  • a battery 18, which serves as an internal power supply for the transmitter This is on the one hand via a first cylindrical coil spring 19 to the transmitter 12 and on the other hand - also via a second cylindrical coil spring 20 and an additional battery buffer 21 - supported on the existing of an electrically conductive material fixing sleeve 14.
  • the cylindrical coil springs 19, 20 serve as additional buffer elements and also as contact elements, by which a circuit is formed by incorporating the electrically conductive fixing sleeve 14.
  • the sealing plug 16, the front buffer 15, the fixing sleeve 14 and the transmitter 12 are connected to one another so that they can be used as a transmitter unit through the front opening in the receptacle of the drill mandrel 10 and removed again.
  • the energy supply integrated between the fixing sleeve 14 and the transmitter 12 likewise forms part of the transmitter unit.
  • the sealing plug 16 is formed with a (in the installed state in the rearward direction) conically tapering section, which is inserted into a correspondingly conically widening portion of the receptacle of the drill mandrel.
  • This connection between the sealing plug 16 and the reaming mandrel 10 leads to a clamping connection between these two elements, by the of the Soil is reinforced on the front side of the stopper 16 acting resistance forces. An unwanted loosening of the sealing plug 16 and the associated elements of the transmitter unit can be avoided.
  • An unintentional loosening of the sealing plug (eg during handling prior to introduction into the soil) can additionally be effected by a (not shown) dowel pin, which is introduced into a transverse bore 22, which passes through the sealing plug 16 and the front portion of the drill mandrel 10 ,
  • a loosening of the sealing plug 16 can be effected by means of a tool which engages in the groove formed between the sealing plug 16 and the annular end face of the drill mandrel 10.
  • the drill mandrel In the area of the transmitter, the drill mandrel is provided with a total of four longitudinal openings 23, which are filled with a plastic, which is characterized in that it does not or only weakly shield the signals emitted by the transmitter. This plastic filling prevents clogging of the longitudinal openings 23 with soil.

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)
  • Mechanical Engineering (AREA)
  • Geophysics (AREA)
  • Earth Drilling (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Elément de forage d'un dispositif de sondage comportant un boîtier et un émetteur monté dans un logement du boîtier, l'émetteur étant disposé dans le logement, mobile dans l'axe longitudinal de l'élément de forage, et relié au boîtier par l'intermédiaire d'un tampon avant de sorte que l'émetteur, en cas d'une impulsion de choc de l'arrière exercée sur l'élément de forage, effectue un mouvement de recul à l'intérieur du logement, mouvement rendu possible par la déformation du tampon, sans que ledit émetteur n'entre en contact direct avec une autre pièce de l'élément de forage.
EP10763607.8A 2009-10-01 2010-09-24 Élément de forage d'un dispositif de sondage Active EP2483522B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009043716.9A DE102009043716B4 (de) 2009-10-01 2009-10-01 Bohrelement einer Erdbohrvorrichtung
PCT/EP2010/005850 WO2011038866A2 (fr) 2009-10-01 2010-09-24 Élément de forage d'un dispositif de sondage

Publications (2)

Publication Number Publication Date
EP2483522A2 true EP2483522A2 (fr) 2012-08-08
EP2483522B1 EP2483522B1 (fr) 2017-12-20

Family

ID=43705490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10763607.8A Active EP2483522B1 (fr) 2009-10-01 2010-09-24 Élément de forage d'un dispositif de sondage

Country Status (4)

Country Link
US (1) US9206682B2 (fr)
EP (1) EP2483522B1 (fr)
DE (1) DE102009043716B4 (fr)
WO (1) WO2011038866A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016159986A1 (fr) * 2015-03-31 2016-10-06 Halliburton Energy Services Inc. Suivi de bouchon par équipement monté en surface
CN114562197A (zh) * 2022-03-02 2022-05-31 桂林中旺机械制造有限公司 具有返打功能的液压凿岩机

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4673033A (en) * 1985-10-31 1987-06-16 Delaware Halliburton Company Tubing conveyed perforating assembly safety device
US4907658A (en) * 1988-09-29 1990-03-13 Gas Research Institute Percussive mole boring device with electronic transmitter
DE4309387C2 (de) * 1993-03-23 1999-04-08 Terra Ag Tiefbautechnik Rammbohrgerät
EP0759498B1 (fr) 1995-08-23 2001-11-07 Tracto-Technik Paul Schmidt Spezialmaschinen Appareil de forage dirigeable avec appareil sensible aux chocs
DE19534806C2 (de) 1995-08-23 1999-01-21 Tracto Technik Lenkbares Bohrgerät
JP3483015B2 (ja) * 1995-10-16 2004-01-06 古河機械金属株式会社 油圧打撃装置の緩衝機構
DE19823629C2 (de) 1998-05-27 2001-08-02 Tracto Technik Gehäuse zur Senderaufnahme
DE19910292A1 (de) * 1998-08-27 2000-03-09 Tracto Technik Verfahren und Vorrichtung zum Lenken von Rammbohrgeräten
DE19947645C1 (de) 1999-10-04 2001-03-15 Tracto Technik Lenkbare Erdrakete und ein Verfahren zum Lenken
DE10052574C2 (de) * 2000-10-23 2003-02-06 Tracto Technik Lenkbare Erdrakete und ein Verfahren zum Lenken einer Erdrakete

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011038866A2 *

Also Published As

Publication number Publication date
WO2011038866A2 (fr) 2011-04-07
EP2483522B1 (fr) 2017-12-20
DE102009043716B4 (de) 2020-04-02
US20120273274A1 (en) 2012-11-01
DE102009043716A1 (de) 2011-04-07
WO2011038866A3 (fr) 2011-07-21
US9206682B2 (en) 2015-12-08

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