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EP0759498B1 - Appareil de forage dirigeable avec appareil sensible aux chocs - Google Patents

Appareil de forage dirigeable avec appareil sensible aux chocs Download PDF

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Publication number
EP0759498B1
EP0759498B1 EP96113301A EP96113301A EP0759498B1 EP 0759498 B1 EP0759498 B1 EP 0759498B1 EP 96113301 A EP96113301 A EP 96113301A EP 96113301 A EP96113301 A EP 96113301A EP 0759498 B1 EP0759498 B1 EP 0759498B1
Authority
EP
European Patent Office
Prior art keywords
drilling tool
tool according
buffer
housing
transmitter
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.)
Expired - Lifetime
Application number
EP96113301A
Other languages
German (de)
English (en)
Other versions
EP0759498A3 (fr
EP0759498A2 (fr
Inventor
Alfons Hesse
Franz-Josef Püttmann
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 Paul Schmidt Spezialmaschinen 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
Priority claimed from DE19534806A external-priority patent/DE19534806C2/de
Application filed by Tracto Technik Paul Schmidt Spezialmaschinen KG filed Critical Tracto Technik Paul Schmidt Spezialmaschinen KG
Publication of EP0759498A2 publication Critical patent/EP0759498A2/fr
Publication of EP0759498A3 publication Critical patent/EP0759498A3/fr
Application granted granted Critical
Publication of EP0759498B1 publication Critical patent/EP0759498B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • E21B7/06—Deflecting the direction of boreholes

Definitions

  • the invention relates to a steerable drilling device with an inclined surface steering head and a shock-sensitive device in a housing, in particular a transmitter for locating the one moving in an earth borehole Drilling rig.
  • Such drills are for example from the German Laid-open specification 39 00 122 and European laid-open specification 0 361 805 known; their transmitters usually have an inclination sensor, a temperature sensor, a roll sensor, a transmission antenna and Batteries or rechargeable batteries. These elements are in a probe housing with a jacket made of plastic or steel arranged, the rotationally fixed in an axial bore of the housing of the drill is attached.
  • the drill While drilling the earth, the drill can be moved due to the Signals emitted by the transmitter above ground using a handheld Track the recipient or several stationary recipients. So that the transmitter through the walls of the device housing Can send over long distances is the housing for example with four 1 to distributed over the circumference 5 mm wide transmission slots provided, which by means of a Plastic filling are closed.
  • Such drills are driven in rotation and / or striking with the result that the drill and the transmitter arranged therein has a strong dynamic Subject to stress. This affects the transmitter on the one hand an axial acceleration force caused by the striking mechanism and especially by fast pushing movements against hard resistances, as well as one radial acceleration force that arises when the drill is stuck in the rock, turning the drill driving drill pipe through the rotary drive receives a torsional prestress and the drill head abruptly releases and sticks again if necessary.
  • the drilling fluid can namely through a connection point between a replaceable steering head attached to the housing and the Housing or through the transmission slots if the seal is off Plastic loosens from the diaphragm wall and falls out into it Penetrate the inside of the housing. This can result in an increased Impact transmission to the transmitter and failure of the transmitter as a result result result in penetrating liquid.
  • the invention has for its object to provide a drill which a shock-sensitive device in a housing, in particular a Transmitter for locating a drilling rig moving in an earth borehole is secured against twisting in relation to the drill housing.
  • the drill type mentioned suggested that the shock-sensitive device in a chamber surrounding the device is arranged at a distance.
  • the housing is rotatably attached to the via a torsionally elastic guide rod Drill casing connected.
  • the shock-sensitive device can in the shock-absorbing buffer or, if it is shock-sensitive device is a cylindrical transmitter, by each a buffer at each end spaced from the wall be kept.
  • Silicone rubber with a Shore hardness is preferred as the buffer material A used from 15 to 30, the excellent vibration and has shock-absorbing properties that extend over a wide temperature range change little. Also the good electrical insulation ability is beneficial.
  • the shock-absorbing effect of the buffers in the axial and radial directions advantageously set in that at least one buffer one larger diameter than the device and the buffer ring or grooves exhibit.
  • the ring grooves influence the axial elasticity and deformability of the Buffers for both axial and radial acceleration.
  • the buffer is at least one in a hole in the buffer engaging pin is fixed in the device and by one in one Undercut of the bore engaging head on the spigot one
  • the buffer easily moves with the device connect and detach from it, for example to Device to maintain.
  • pulling out only needs a pulling hook into the Undercut to be carried out on the device To be able to capture and pull out buffers.
  • the device So that the device send a signal to the earth's surface that indicates a curl, the device must be non-rotatable be arranged in the housing.
  • at least one of the buffers is rotatably connected to the device and has a longitudinal groove on the outside into which a Head start on the housing housing the device as a rotation lock intervenes. Then on the other end of the device one accessible through the hole in the other buffer Slot for positioning using tools, for example a screwdriver.
  • the non-rotatable connection to the housing can also be in that the device has a torsionally elastic Guide rod rotatably with a steering head is connected, which itself rotatably with the housing is coupled, the guide rod on his one End with a tongue in a front groove on the steering head engages and through a cross section against pulling out is secured while the management team is at his the other end with a T-neck in a T-slot on the device intervenes.
  • the complete Transmitter from the housing using the steering head pull out, and it won't become a pull hook a screwdriver is still needed to align the Transmitter required.
  • the device can be free swing without transmitting harmful impacts become.
  • the drill can Steering movements, especially in very hard ground formations bend.
  • Buffering shock-absorbing guide rings are arranged that can be relatively narrow and up to 5 mm have a larger diameter than the device. To this In this way, the device is prevented from bending fixes the drill so that the radial Do not transfer acceleration forces to the device can.
  • the batteries or rechargeable batteries used for energy supply Accumulators are proportionate large mass, and there may be contact problems between the batteries and come with the device (transmitter) if particularly high axial accelerations occur.
  • battery shock-absorbing Buffer may be arranged.
  • the shock-absorbing ones Buffer preferably on both sides of the batteries and arranged between the batteries and ring-shaped trained so that it from the battery contacts and / or contact springs can be reached.
  • a passage of drilling fluid from one on the housing attached steering head to the device arranged in the housing (Transmitter) can be avoided if there is a lip seal arranged against the housing is.
  • the drill 1 consists of a housing 2, the rear end 3 with a thread for attachment a drill pipe, not shown, is provided.
  • a cylindrical chamber 6 is located in the housing 2 for a transmitter 14.
  • transmission slots 7 arranged so that the transmitter 14 through the Drill wall can send over long distances.
  • These transmission slots 7 are approximately 1 to 5 mm wide, extend axially substantially over the length of the Transmitter 14 and 8 with one or more crosspieces stiffened to prevent a not shown Slot filling made of plastic or another suitable material from the transmission slots 7 falls out when the drill 1 due to strong torsional forces or deformed during steering movements.
  • the steering head 9 with an inclined surface is with the housing 2 rotatably connected in such a way that flats 10 of corresponding projections in the housing 2 being held. It is against axial displacement Steering head 9 through a hole 11 penetrating Pin secured. On an extension 12 of the steering head 9 a lip seal 13 is arranged, which prevents that the steering head 9 through the bore 5 supplied drilling fluid enters the chamber 6 for the transmitter 14.
  • the transmitter 14 has a cylindrical housing, the Outside diameter about 5 mm smaller than that Inside diameter of the chamber 6 is.
  • a buffer 15 On the steering head 9 facing end of the transmitter 14 is a buffer 15, and facing towards the rear end 3 of the housing 2 End a shock absorbing buffer 16 is arranged.
  • the buffers 15, 16 are preferably made of silicone rubber with a Shore hardness A of 15 to 30 but also from other shock-absorbing elastomers consist. To the deformability in axial and radial To ensure direction, the buffers 15, 16 are with Ring grooves 17 and axial bores 18 are provided. At least the axial bore 18 in the buffer 15 has an undercut 19 in which a head 20 one with the Transmitter 14 connected pin 21 engages, whereby the Buffer 15 is held securely in the axial direction. The axial extent of the undercut 19 is larger than that of the head 20, so that a free space remains, in which can be inserted after the Steering head 9 was removed so that the transmitter 14th pull out of chamber 6 using the pulling hook leaves.
  • At least the buffer 16 is non-rotatable with the transmitter 14 connected and has a longitudinal groove 22 into which a Projection engages in the form of a screw 23 on the housing 2.
  • the transmitter 14 accepts the housing 2 a defined position, which is in Operation not changed. Nevertheless, this fixation is designed so that neither axial nor radial accelerations are transmitted to the transmitter 14.
  • the guide rings 25,26 prevent If the housing is deformed, 2 radial accelerations are transmitted to the transmitter 14.
  • a battery compartment 31 of the transmitter 14 In a battery compartment 31 of the transmitter 14 are coaxial two cylindrical batteries 27 are arranged. Possibly it can also be just one or more than two batteries his. Between these batteries 27 and on both sides of which are further annular buffers 28, too preferably made of silicone rubber with a Shore hardness arranged from 15 to 30, which serve the transfer from particularly high acceleration forces to the To prevent batteries 27.
  • the contact transfer from the batteries 27 to those arranged in the housing of the transmitter 14 electronic components are used in this case Contact springs 30.
  • the transmitter is 14 in the drill by a screw 23, which is in a groove 22nd engages, secured against twisting.
  • a screw 23 which is in a groove 22nd engages, secured against twisting.
  • Fig. 3 Another embodiment the very important fixation of the transmitter 14 on the steering head 9 against rotation is shown in Fig. 3 and is that through the buffer 15 a torsionally elastic guide rod 32 which engages the Transmitter 14 connects to the steering head 9.
  • the buffer 15 has the axial bore 18.
  • connection steering head 9, rod 32 can for example take place via a tongue 33 which in an end groove 35 on Steering head 9 engages. Through a cross section Tongue 33 are secured against being pulled out.
  • the connection Rod 32, transmitter 14 can 34 via a T-neck on the rod 32, which is in a T-groove 36 on the transmitter 14 intervenes. It is important that the T-slot 36 on the transmitter 14 so is designed that the rod 32 is sufficient on the end Has axial play in this groove 36. The axial play must be greater than the maximum resulting travel of the Buffer 15, 16. Since the rod 32 on the T-neck 34 on Transmitter is fixed and on the tongue 33 on the steering head 9, can the complete transmitter 14 by means of the steering head 9 pull out of the axial bore. It won't Additional tools such as a pulling hook or screwdriver are required neither to pull out nor to insert.
  • the rod 32 Since the rod 32 is torsionally elastic, it does not become hard Impacts e.g. arise when hooking the steering head 9, transmitted to the transmitter 14.
  • the rod 32 leaves preferably from the side into the T-slot on the transmitter insert.
  • the buffer 15 sits loosely on the rod 32, so that the transmitter can swing freely. Buffers 15, 16 do not need longitudinal grooves since there are no engaging Screw 23 as security against rotation there.
  • the invention is not based on the illustrated embodiment one rotating and striking by means of one Drill rig driven drill rig limited at which is supplied to the steering head drilling fluid. Much more the invention can also be used in conjunction with use a hammer drill that works like this it, for example, in German Patent No. 2,157 259 is described. At relatively low axial extension of the transmitter and a corresponding The diameter of the drill can also be completely changed be embedded in the shock-absorbing buffer, which itself in the event of repair or maintenance of the transmitter can be easily removed.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Geophysics (AREA)
  • Earth Drilling (AREA)
  • Geophysics And Detection Of Objects (AREA)

Claims (19)

  1. Appareil de forage dirigeable, dont le corps est relié à une tête de direction aux surfaces biseautées (9) et comprenant un appareil sensible aux chocs (14) dans une chambre (6) entourant l'appareil en ménageant un espace, qui est relié avec assujettissement en rotation au corps de l'appareil de forage (2) via une tige de guidage élastique en torsion (32).
  2. Appareil de forage selon la revendication 1, caractérisé en ce que l'appareil (14) est maintenu au moyen d'au moins un tampon amortisseur (15, 16) au moins dans la direction longitudinale à distance des parois d'une chambre (6) logeant l'appareil (14).
  3. Appareil de forage selon la revendication 1 ou 2, caractérisé en ce que l'appareil (14) est intégré dans un tampon amortisseur (15, 16).
  4. Appareil de forage selon la revendication 1 ou 2, caractérisé par un appareil cylindrique (14) et par un tampon amortisseur (15, 16) respectivement disposé à chaque extrémité.
  5. Appareil de forage selon la revendication 4, caractérisé par au moins un tampon amortisseur (15, 16) de diamètre supérieur à celui de l'appareil (14).
  6. Appareil de forage selon la revendication 4 ou 5, caractérisé en ce que le ou les tampon(s) amortisseur(s) (15, 16) comporte(nt) des rainures circulaires (17).
  7. Appareil de forage selon l'une des revendications 4 à 6, caractérisé en ce que le tampon amortisseur (15, 16) est fixé à l'appareil (14) au moyen d'une tige de guidage élastique en torsion (32) qui s'engage dans un alésage (18) du tampon amortisseur (15, 16).
  8. Appareil de forage selon la revendication 7, caractérisé par une contre-dépouille (19) dans l'alésage (18).
  9. Appareil de forage selon la revendication 7 ou 8, caractérisé en ce que le tampon amortisseur (16) disposé de façon fixe en rotation en une extrémité de l'appareil (14) comporte une rainure longitudinale (22) à l'extérieur, dans laquelle s'engage un élément faisant saillie (23) au niveau du corps (2) logeant l'appareil (14) en tant qu'élément de blocage en rotation et en ce qu'une fente (24) est disposée en l'autre extrémité de l'appareil (14), accessible à travers l'alésage (18) du tampon amortisseur (15) pour le positionnement à l'aide d'un outil.
  10. Appareil de forage selon la revendication 9, caractérisé en ce que la tige de guidage (32) s'engage au niveau de l'une de ses extrémités avec une languette (33) dans une rainure frontale sur la tête de direction (9) et au niveau de son autre extrémité avec un embout en T (34) s'emboítant dans une rainure en T (36) sur l'appareil (14).
  11. Appareil de forage selon la revendication 10, caractérisé en ce que l'embout en T (34) présente dans la rainure en T (36) un jeu axial, qui est supérieur à la course élastique maximale conférée par les tampons amortisseurs (15, 16).
  12. Appareil de forage selon l'une des revendications 1 à 11, caractérisé en ce que la tige de guidage (32) est disposée dans l'alésage (18) des tampons amortisseurs (15, 16) avec un jeu, de telle sorte que l'émetteur (14) peut pivoter librement sans transmission de chocs.
  13. Appareil de forage selon l'une des revendications 1 à 12, caractérisé en ce que le tampon amortisseur (15, 16) est fixé au moyen de raccords par enclenchement (18, 19 ; 20, 21) sur l'appareil (14).
  14. Appareil de forage selon une ou plusieurs des revendications 4 à 13, caractérisé par une bague de guidage (25, 26) amortissant les chocs, disposée de façon contiguë au tampon amortisseur (15, 16) sur l'appareil (14).
  15. Appareil de forage selon l'une des revendications 1 à 14, caractérisé par un compartiment à batteries (31) dans l'appareil (14) et un tampon amortisseur (28) disposé des deux côtés d'au moins une batterie (27).
  16. Appareil de forage selon la revendication 15, caractérisé par au moins deux batteries (27) disposées coaxialement dans le compartiment à batteries (31) et des tampons amortisseurs circulaires (28) disposés des deux côtés et entre les batteries (27) traversés par les contacts des batteries (29) et/ou les lames de contact (30).
  17. Appareil de forage selon l'une des revendications 1 à 16, caractérisé en ce que les tampons amortisseurs (15, 16, 28) sont fabriqués en caoutchouc siliconé, avec une dureté shore A comprise entre 15 et 30.
  18. Appareil de forage selon l'une des revendications 1 à 17, caractérisé par un corps (2) avec au moins une fente émettrice (7) stabilisée par des segments transversaux (8) et fermée par une garniture de plastique.
  19. Appareil de forage selon l'une des revendications 1 à 18, caractérisé par une tête de direction (9) disposée sur le corps (2) alimentée par un liquide de forage conduit à travers le corps (2) et un joint à lèvres (13) allant jusqu'au corps (2).
EP96113301A 1995-08-23 1996-08-20 Appareil de forage dirigeable avec appareil sensible aux chocs Expired - Lifetime EP0759498B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19530973 1995-08-23
DE19530973 1995-08-23
DE19534806A DE19534806C2 (de) 1995-08-23 1995-09-20 Lenkbares Bohrgerät
DE19534806 1995-09-20

Publications (3)

Publication Number Publication Date
EP0759498A2 EP0759498A2 (fr) 1997-02-26
EP0759498A3 EP0759498A3 (fr) 1997-12-29
EP0759498B1 true EP0759498B1 (fr) 2001-11-07

Family

ID=26017920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96113301A Expired - Lifetime EP0759498B1 (fr) 1995-08-23 1996-08-20 Appareil de forage dirigeable avec appareil sensible aux chocs

Country Status (3)

Country Link
US (1) US5795991A (fr)
EP (1) EP0759498B1 (fr)
JP (1) JPH09165985A (fr)

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US6470979B1 (en) * 1999-07-16 2002-10-29 Earth Tool Company, L.L.C. Sonde housing structure
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GB9903256D0 (en) 1999-02-12 1999-04-07 Halco Drilling International L Directional drilling apparatus
CA2366115A1 (fr) 1999-03-03 2000-09-21 Earth Tool Company, L.L.C. Procede et appareil de forage dirige
US6371223B2 (en) 1999-03-03 2002-04-16 Earth Tool Company, L.L.C. Drill head for directional boring
US6422782B1 (en) 1999-12-16 2002-07-23 Earth Tool Company, L.L.C. Apparatus for mounting an electronic device for use in directional drilling
US6450269B1 (en) 2000-09-07 2002-09-17 Earth Tool Company, L.L.C. Method and bit for directional horizontal boring
US6789635B2 (en) 2001-06-18 2004-09-14 Earth Tool Company, L.L.C. Drill bit for directional drilling in cobble formations
GB0221717D0 (en) * 2002-09-19 2002-10-30 Lattice Intellectual Property Tool for directional boring
TWI382918B (zh) * 2005-04-19 2013-01-21 Sulzer Chemtech Ag 液態聚矽氧烷橡膠之發泡成形的聚合物元件之製法
CN101581195B (zh) * 2009-06-16 2011-05-11 上海振中机械制造有限公司 一种环保型潜孔锤凿岩钻机
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DE102009043716B4 (de) * 2009-10-01 2020-04-02 Tracto-Technik Gmbh & Co. Kg Bohrelement einer Erdbohrvorrichtung
US8714284B2 (en) 2010-09-16 2014-05-06 Bbj Tools Inc. Weight-on-bit drill sub
JP6084382B2 (ja) * 2011-06-28 2017-02-22 三信建設工業株式会社 削孔装置及びこれを用いた注入管の敷設方法
CA3038564C (fr) 2012-11-06 2021-03-23 Evolution Engineering Inc. Systeme universel de sonde de fond
CA2892796C (fr) 2012-12-03 2020-05-26 Evolution Engineering Inc. Centreur de sonde de forage
WO2014085898A1 (fr) 2012-12-07 2014-06-12 Evolution Engineering Inc. Procédés et appareil pour sondes de forage
CN103850650A (zh) * 2014-03-25 2014-06-11 镇江市电站辅机厂有限公司 机械式弹性定位缓冲装置
CN107605395B (zh) * 2017-10-25 2019-03-22 中国地质大学（武汉） 一种非开挖的电动冲击矛
DE102019004509B4 (de) 2019-06-28 2024-05-02 TRACTO-TECHNlK GmbH & Co. KG Vorrichtung zum Dämpfen einer Krafteinwirkung auf ein elektronisches Bauteil und Bohrstrangabschnitt einer Erdbohrvorrichtung aufweisend eine derartige Vorrichtung

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Also Published As

Publication number Publication date
EP0759498A3 (fr) 1997-12-29
US5795991A (en) 1998-08-18
EP0759498A2 (fr) 1997-02-26
JPH09165985A (ja) 1997-06-24

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