EP2278115B1 - Prolongement pour une tige de sondage - Google Patents

Prolongement pour une tige de sondage Download PDF

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Publication number
EP2278115B1
EP2278115B1 EP09008093A EP09008093A EP2278115B1 EP 2278115 B1 EP2278115 B1 EP 2278115B1 EP 09008093 A EP09008093 A EP 09008093A EP 09008093 A EP09008093 A EP 09008093A EP 2278115 B1 EP2278115 B1 EP 2278115B1
Authority
EP
European Patent Office
Prior art keywords
extension
drilling
pipe
tool
rod
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.)
Not-in-force
Application number
EP09008093A
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German (de)
English (en)
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EP2278115A1 (fr
Inventor
Thomas Schmitt
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.)
Bauer Spezialtiefbau GmbH
Original Assignee
Bauer Spezialtiefbau 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
Application filed by Bauer Spezialtiefbau GmbH filed Critical Bauer Spezialtiefbau GmbH
Priority to EP09008093A priority Critical patent/EP2278115B1/fr
Priority to AT09008093T priority patent/ATE532940T1/de
Publication of EP2278115A1 publication Critical patent/EP2278115A1/fr
Application granted granted Critical
Publication of EP2278115B1 publication Critical patent/EP2278115B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E21B47/02—Determining slope or direction
    • 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
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • E21B17/076—Telescoping joints for varying drill string lengths; Shock absorbers between rod or pipe and drill bit

Definitions

  • the invention relates to an extension for a drill pipe, in particular for a telescopic drill pipe, according to the preamble of claim 1, with a linkage connection means for connection of the extension with the drill pipe and a tool connection means for connecting the extension with a drilling tool.
  • Kelly linkage For the production of holes in the ground with large rotary drilling rigs, for example for the production of foundation piles for buildings, it is known to use telescopic drill pipe, in particular so-called Kelly linkage.
  • Such Kelly linkage consists of several nested Kelly tubes, the innermost Kelly tube hanging from a rope of the rotary drilling rig and thus can be moved up and down. This allows the Kelly linkage to be telescoped.
  • the drilling tool At the bottom of the innermost Kelly tube, the drilling tool is attached.
  • the torque and thus the rotational movement is transmitted from one Kelly tube to another similar to a shaft-hub connection.
  • the rotational movement of the rotary drive which acts on the outermost drill pipe, to the drilling tool, which is arranged on the innermost Kelly tube, transmitted.
  • Such Kellygestfite are for example from the EP 1 445 418 A1 known.
  • the achievable with a conventional Kelly linkage maximum drilling depth is determined by the length of the extended drill pipe. This length again corresponds approximately to the length of the retracted drill string multiplied by the number of individual Kelly tubes.
  • the maximum deployable retracted rod length is usually limited by the height of the equipment tower and the required free height above ground (ground level).
  • the number of individual Kelly tubes is limited by the diameter of the hollow shaft in the rotary drive, since in general all Kelly tubes must be passed through this hollow shaft.
  • the DE 40 38 424 C1 known to lead the outermost Kelly tube only below the rotary drive, instead of this to perform through the hollow shaft. But even with such an arrangement, the number of individual Kelly tubes is ultimately limited by geometric specifications, so that there is limited to the maximum extended rod length accordingly.
  • an extension rod can be attached to the Kelly drill pipe.
  • the maximum achievable depth can be increased.
  • the maximum achievable with such KellygestCodeeverinrung drilling depth increase is limited by the fact that the entirety consisting of extension rod and drilling tool must be shorter than the free height between Planum and retracted Kellygestnaturee, because only then the drilling tool can be swung out to empty out of the hole.
  • a drilling depth increase of a maximum of 3 to 5 m can thus be achieved with an extension rod.
  • extension rods For even greater drilling depths, it could be considered to mount or dismount several extension rods with a hoist above the borehole. However, then a complete assembly and subsequent disassembly of the extension rods for emptying the drilling tool is necessary for each drilling game, which would be relatively time consuming. The drilling performance would be only comparatively low.
  • the extension of the DE 198 31 755 C1 has a hollow cylindrical extension piece, which is connected to the lowermost member of the telescoping Kelly linkage, and which pushes in the retracted state on the tubes of the hereby extended Kelly linkage. Again, however, the maximum achievable Drill depth increase limited because the length of the hollow cylindrical extension piece is limited by the length of the retracted Kelly linkage.
  • the object of the invention is to provide an extension for attachment, in particular for attaching, to a drill pipe, for example to a Kelly drill pipe, with which the maximum achievable drilling depth can be increased particularly far with particularly high reliability and easy and quick handling.
  • the extension according to the invention is characterized in that it comprises a plurality of telescoping tubular elements, which are arranged in the radial direction and which are mutually displaceable in the axial direction, wherein the linkage connecting device and the tool-connecting device are respectively arranged on different tubular elements, and the tubular element , on which the linkage connection device is arranged, is located at least partially in the radial direction within that tube element on which the tool connection device is arranged.
  • a first aspect of the invention may be seen to provide the drill string extension telescopically with a plurality of tubular members which may be telescoped apart for drilling and which may be telescoped to pull the drilling tool.
  • a significantly increased drilling depth increase can be achieved with the invention telescopic extension. Because similar to a Kelly linkage described above, the maximum additional length is the greater the more tubular elements are provided even with a telescopic KellygestTooleverinrung invention.
  • this point at which the pipes must be reconnected, is located at the transition between the two pipe elements, and thus a pipe length away from the fixed point, that is, at a vertical pipe run a pipe length above the fixed point.
  • the drilling tool is arranged on the outer tube element, it is this outer tube element which has to be fixed when pushed apart so that the drilling tool does not fall down.
  • this outer tubular element is not covered and can thus be intercepted and fixed at any height contrary to the arrangement described above.
  • the outer tubular element can thus be gripped at the point that comes to lie in the middle of the pipe combination with the pipe combination pulled out.
  • the point at which the pipes must be reconnected after removal in the area of the fixed point and not a tube length above, and is thus particularly accessible.
  • the tool is arranged on an outer tube element, in particular on the outermost tube element, and the linkage to be elongated on a further inner tube element, a particularly large increase in drilling depth is thus achieved with particularly good handleability.
  • a telescopic extension according to the invention which can be extended and shortened at the borehole by being pushed apart or pushed together like a kelly linkage.
  • the arrangement of the individual tube elements is reversed.
  • these directions should generally refer to the longitudinal axes of the individual tubular elements, that is, the radial direction is thus in particular the direction perpendicular to the longitudinal axis of preferably coaxially arranged one inside the other Pipe elements runs.
  • the tubular elements may be formed with a round cross-section, in which case a torque transmission can take place via entrainment strips.
  • a torque transmission can take place via entrainment strips.
  • the cross-sectional shape itself can be used for torque transmission, so that corresponding entrainment can be omitted.
  • the innermost tube could also be solid for a particularly good power consumption.
  • hollow tubes are often preferred for reasons of weight.
  • the drilling tool may in particular be a drilling screw or a drilling bucket.
  • the invention also includes an arrangement in which a drilling tool is arranged on the tool connection device of the extension and / or in which a drill string is arranged on the linkage connection device.
  • the linkage connection device and / or the tool connection device may have, for example, polygonal profiles for torque transmission.
  • square profiles are provided.
  • the linkage connecting device can thus preferably have an inner polygonal profile, that is to say a sleeve, and the tool connecting device can have an outer polygonal profile.
  • the linkage connection device expediently has a Kellybox and the tool connection device has a Kellyvierkant.
  • the linkage connecting device is expediently arranged on the side facing away from the borehole, that is to say generally at the top of the underlying tubular element, and the linkage connecting device on the side facing the borehole, that is to say generally on the underside of the underlying tubular element.
  • the handling of the extension according to the invention can be further simplified in that on at least one of the tubular elements, a catch means for supporting the respective tubular element, in particular at the borehole mouth, is provided.
  • the interception device may have a catching element that protrudes from the lateral surface of the tubular element, so that it can be brought in the area of the wellbore mouth to rest.
  • all the pipe elements each have such a catching device, possibly with the exception of the inner pipe element, on which the linkage connecting device is arranged, and therefore may not need to be supported.
  • a catch device may also be advantageous, for example for assembly purposes, on this inner tube element.
  • An interception device according to the invention facilitates the fixation of the respective free tube element combination when pushing apart or pushing together the extension.
  • the interception device is arranged in a rod-side end region of the respective tubular element, in particular in an end region facing the Kelly linkage to be extended.
  • the interception device is arranged in a region of the respective tubular element which faces the linkage connecting device, that is to say that the intercepting device is preferably closer in the axial direction to the end of the tubular element which faces the linkage connecting device. as at the end, which faces the tool-connecting device.
  • the respectively intercepted pipe element is at vertical linkage under the interception device.
  • the intercepted pipe element can thus be advantageously arranged during interception in the borehole interior, so that no corresponding clearance on the drill is required. This in turn has a positive effect on the achievable drilling depth.
  • this catching device has at least one catching element, which projects from the respective pipe element preferably in the radial direction.
  • a plate may be provided as the intercepting element, preferably a ring plate which surrounds the respective pipe element, in particular in an upper region of the pipe element.
  • a capture element but can for example also be provided a Abfanggabel.
  • Such a preferably slidable Abfanggabel may have two legs which extend on opposite sides of the respective pipe element.
  • the interception element is arranged on the lateral surface of the respective tubular element.
  • the extension according to the invention can basically be used both in cased boring and uncased boring.
  • cased drilling the interceptor is suspended for catching expediently on Bohrrohrkragen the drill pipe.
  • uncased drilling the interceptor can rest directly on the borehole mouth.
  • the intercepting element has at least one hook element.
  • the intercepting element for forming the hook element can have at least one angled limb which points towards the tool connection device, that is to say generally downwards.
  • the intercepting element is located radially within the drilling cross section of the drilling tool.
  • the cross section which is swept by the intercepting element when rotating the extension about the longitudinal axis of the tubes, within the Bohrqueritess of the drilling tool. This prevents the interceptor abuts the borehole wall, when the corresponding pipe element is introduced into the borehole.
  • a cross-section smaller interception element it may be provided to exert a radially directed force on the extension for the purpose of interception, so that the longitudinal axis of the extension is slightly tilted with respect to the longitudinal axis of the already created borehole, and thus the intersecting cross-sectional interceptor over can survive the borehole wall.
  • it may be provided for intercepting by means of a cross-section smaller interception element to provide the interception element in the radial direction adjustable on the respective tube element, or temporarily provide an additional cross-sectional larger edition, on which in turn rests the interceptor.
  • a further embodiment of the invention consists in that the intercepting element is detachably arranged on the respective tubular element. According to this embodiment it can be provided to arrange the intercepting element only intermittently for interception on the tubular element. As a result, the total weight can be reduced and, moreover, it can be prevented that the intercepting element gets into the borehole.
  • the invention provided on each pipe element interception device can also consist only in a receptacle which is adapted to fix the interception element.
  • Such a trained as a recording interception device for example, have at least one recess or at least one stop.
  • the extension has locking means with which adjacent tubular elements for transmitting axial forces and / or torques can be locked together.
  • These locking means allow a transmission of forces and / or moments from the drill string via the axially displaceable tubes to the drilling tool. If axially extending carrier strips or other means for transmitting torque between adjacent tubular elements are provided, it may be sufficient that the locking means are set up only for the transmission of axial forces. In principle, the locking means can serve both for the transmission of axial forces and for the transmission of torques.
  • the locking means comprise at least one bolt, which is preferably radially adjustable with respect to the pipe elements.
  • the bolt engages for locking in a corresponding recess of the respective adjacent tubular element.
  • a guide slot for the bolt can be provided.
  • the bolt may also have a bayonet lock, with which the bolt can be locked in the inserted state.
  • the locking means have locking pockets and corresponding projections which are arranged on adjacent tubular elements.
  • These latch pockets and projections may, for example, form a bayonet lock, the adjacent tube elements in the axial direction guaranteed.
  • a lock can be effected by relative rotation of individual pipe elements to each other about their longitudinal axis.
  • the extension according to the invention can be realized with only two tubular elements.
  • at least one further tubular element is arranged between the tubular element on which the linkage connecting device is arranged, and the tubular element on which the tool connecting device is arranged.
  • at least three pipe elements are provided telescopically.
  • the operational reliability can be further increased by providing a stop for at least one further tube element on at least one tube element, in particular on the tube element on which the linkage connection device is arranged, this stop being arranged in particular in the region of the linkage connection device can.
  • this embodiment can be prevented in a particularly simple manner that the remaining pipe elements slip over the linkage connection means to the linkage upwards.
  • the said stop acts for all further tube elements.
  • the individual pipe elements successively have a stop for the respectively adjacent outer pipe element.
  • a stop can also be formed by correspondingly shaped entrainment.
  • the extension between a drill string, in particular Kelly linkage, and a drilling tool is arranged.
  • the invention thus also relates to the unit drill pipe extension drilling tool. If the extension according to the invention is used to extend a telescopic linkage, for example a Kelly linkage, this results in a combination of two telescopic linkage sections, which are connected in series via the linkage connection device.
  • the invention can enable a drilling depth increase with the same device size or a reduction of the device size for the same drilling depth, especially in a partial piping.
  • the invention allows a faster extension or shortening by semi-automatic telescoping. Since no crane work is required, a relatively high drilling speed is made possible even at great depths.
  • an additional drilling depth gain can be made possible if the number of Kelly tubes of the Kelly linkage (for example three times) is smaller than the number of tube elements of the telescopic extension (for example quadruple). In a Kellyley (2004) on a short Kellygestfite this benefit can be further extended.
  • the telescope Kellyverdorfrung is also relatively cheap.
  • the invention can be used, for example, in deep special wells, such as in mining / bulk sampling, in the construction of shafts, deep pile foundations and other special cases.
  • the invention also relates to a drilling rig with a mast, a drill pipe which extends at least partially along the mast, a drill drive arranged on the mast for actuating the drill pipe, and a carrier vehicle for the mast, wherein an extension according to the invention is provided on the drill pipe.
  • the invention also relates to a method for creating a borehole, in which a boring tool, which is arranged on a drill pipe, in particular Kelly linkage, is drilled, in particular in connection thereto an extension according to the invention between Kelly linkage and boring tool is installed, and the extension for enlarging the maximum drilling depth is extended. It may be advantageous if the bore is first drilled with the simple Kelly linkage and only then the inventive telescopic extension between Kelly linkage and drilling tool is installed. In principle, it can also be provided to drill from the beginning with the combination of Kelly linkage and extension. Preferably, the Kelly linkage and then the extension is extended during drilling first.
  • FIG. 1 A first exemplary embodiment of an extension 10 according to the invention is shown in FIG. 1 in various stages of operation, with an almost completely retracted state on the left side, an extended state on the right side and an intermediate state in the middle.
  • the telescopic extension 10 has a total of three telescoping tube elements 1 ', 1 "and 1'" which are arranged coaxially with one another coaxially with respect to the drilling axis 99.
  • the tube element located in the radial direction, that is perpendicular to the drilling axis 99, is in the Figures with the reference numeral 1 ', the outermost tubular element by the reference numeral 1''' and the radially intermediate tubular element with the reference numeral 1 "marked.
  • a drilling tool 60 is provided, which is designed as a drilling bucket in the illustrated embodiment.
  • This drilling tool 60 is arranged on the outer, lowest-lying tube element 1 "', for this purpose the tube element 1'" has a tool connection device 19, which is designed as a kelly square FIGS. 2 to 7 illustrated drill pipe 50 is provided at the opposite end of the extension 10, a linkage connecting device 18.
  • This linkage connecting device 18 is designed as a square profile.
  • radially adjustable bolts 40 are provided with which the middle tube element 1 "on the inner tube element 1 'can be set.
  • FIG. 1 further shows, is at the lower, outer tube member 1 "'a plunger 24 for actuating, in particular for opening, designed as a drilling bucket drilling tool 60 is provided.
  • FIG. 2 Another embodiment of an extension 10 according to the invention is shown in FIG FIG. 2 shown.
  • the catching devices 3 serve to catch the pipe element 1, on which the respective catching device 3 is arranged, at the borehole mouth 70, if the corresponding bolts 40 are released for telescoping, so that the corresponding pipe element 1 does not fall by gravity into the borehole 90.
  • the interception devices 3 each have a rod-shaped or fork-shaped intercepting element 30, which is located in an upper region of the respectively underlying Tube element 1 is arranged, that is, in a region of the tubular element 1, which faces away from the tool connection device 19 and the drilling tool 60 '
  • the interception elements 30 are formed as radial webs which project from the respective tube element 1. Radially on the outside, the interception elements 30 are bent over , so that hook elements 31 are formed are, which point down to the drilling tool 60.
  • the respective tubular element 1" can be hooked on the borehole mouth 70 via these hook elements 31.
  • the intercepting element 30 can be hooked into the tube collar 36 of a drill pipe 37.
  • the intercepting elements 30 can also be used as Preferably, a plurality of hook elements 31 may then be provided spaced apart on the circumference of the respective intercepting element 30.
  • the connecting means designed as a bolt 40 are provided above the respective intercepting element 30, that is to say on the side facing away from the drilling tool, on the respective tubular element 1. Like on the Pin 40 "and the associated interception element 30" can be seen, thus the bolt 40 "is easily accessible when the associated interception element 30" is mounted.
  • the individual interception elements 30 are smaller in cross-section compared with the drilling tool 60 'is formed, which is designed in the illustrated embodiment as a drill screw. This allows the scavengers 3 to enter the borehole 90 without damaging the borehole wall.
  • the hooking the hook element 31 “allows.
  • it may be provided to attach the interception element only temporarily before interception and subsequently take it off again. This can be realized in a particularly simple way with Abfanggabeln.
  • FIGS. 3 to 7 illustrate the use of the extension 10 of the FIG. 1 in a method for creating a borehole 90, wherein the FIGS. 3 to 7 show the different process steps in the Bohrlochcher ein.
  • FIG. 3 shows a drill 80 is provided for this purpose.
  • This drill 80 has a carrier vehicle 83 which carries a mast 81.
  • a drill drive 82 is arranged longitudinally displaceable.
  • a drill string 50 on the underside of which the extension 10 is arranged via the linkage connection device 18.
  • the drilling tool 60 is arranged.
  • FIG. 3 shows the drill 80 in a position for the assembly or disassembly of the extension 10 or for the emptying of the drilling tool 60, in which the drill pipe 50 and the extension 10 are retracted.
  • extension 10 is to be extended for a drilling depth increase, first the outer tubular element 1 '"is intercepted and the bolts 40"' arranged thereon are released FIG. 4 shown.
  • the drill string 50 is raised to extend the extension 10, for example, by means of a mast 80 extending support cable 54.
  • the am Drill pipe 50 fastened inner tubular element 1 'as well as the inner tube element 1' via the bolts 40 "held middle tube element 1" are thereby pulled out of the lower tube element 1 '''and pulled out the extension 10. This condition is in FIG. 5 shown.
  • extension 10 is to be extended even further, then the middle tube element 1 "is intercepted, then the bolts 40" of the middle tube element 1 "are loosened, then the drill pipe 50 is again moved upwards and in this case the inner tube element 1 'from the middle one Pipe element 1 "pulled out. This condition is in FIG. 6 shown.
  • the extension of the extension 10 is thus preferably from the outer tube member 10 "'inwards.
  • FIG. 7 Finally, the maximum achievable drilling depth with completely extended telescopic linkage 50 and fully extended extension 10.

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  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
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  • Earth Drilling (AREA)

Claims (14)

  1. Rallonge (10) pour une tige de forage (50), en particulier une tige de forage télescopique (50), avec
    - un dispositif (18) de raccordement de tige pour raccorder la rallonge (10) à la tige de forage (50) et
    - un dispositif (19) de raccordement d'outil pour raccorder la rallonge (10) à un outil de forage (60),
    caractérisée en ce que
    - la rallonge (10) comprend plusieurs éléments tubulaires télescopiques (1) qui sont placés les uns dans les autres dans la direction radiale et qui sont mobiles les uns par rapport aux autres dans la direction axiale,
    - le dispositif (18) de raccordement de tige et le dispositif (19) de raccordement d'outil étant placés chacun sur des éléments tubulaires (respectivement 1' et 1"') différents, et l'élément tubulaire (1') sur lequel est placé le dispositif (18) de raccordement de tige se trouvant au moins par zones à l'intérieur, dans la direction radiale, de l'élément tubulaire (1''') sur lequel est placé le dispositif (19) de raccordement d'outil.
  2. Rallonge (10) selon la revendication 1, caractérisée en ce que, sur au moins l'un des éléments tubulaires (1), est prévu un dispositif d'appui (3) destiné à soutenir l'élément tubulaire respectif (1) sur la bouche (70) du trou de forage.
  3. Rallonge (10) selon la revendication 2, caractérisée en ce que le dispositif d'appui (3) est placé dans une zone d'extrémité côté tige de l'élément tubulaire (1) correspondant.
  4. Rallonge (10) selon l'une quelconque des revendications 2 ou 3, caractérisée en ce que le dispositif d'appui (3) comprend au moins un élément d'appui (30) qui forme saillie dans la direction radiale depuis l'élément tubulaire (1) correspondant.
  5. Rallonge (10) selon la revendication 4, caractérisée en ce que l'élément d'appui (30) comprend au moins un élément de crochet (31).
  6. Rallonge (10) selon l'une quelconque des revendications 4 ou 5, caractérisée en ce que l'élément d'appui (30) se trouve radialement à l'intérieur de la section de forage de l'outil de forage (60).
  7. Rallonge (10) selon l'une quelconque des revendications 4 à 6, caractérisée en ce que l'élément d'appui (30) est placé amovible sur l'élément tubulaire (1) correspondant.
  8. Rallonge (10) selon l'une quelconque des revendications précédentes, caractérisée en ce que la rallonge (10) comprend des moyens de verrouillage avec lesquels des éléments tubulaires (1) voisins peuvent être verrouillés les uns aux autres afin de transmettre des forces axiales et/ou des couples de rotation.
  9. Rallonge selon la revendication 8, caractérisée
    en ce que les moyens de verrouillage comprennent au moins un goujon (40) qui est réglable radialement par rapport aux éléments tubulaires (1), et/ou
    en ce que les moyens de verrouillage présentent des poches de verrouillage et des saillies correspondantes, qui sont placées sur des éléments tubulaires (1) voisins.
  10. Rallonge (10) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'en regardant dans la direction radiale, au moins un autre élément tubulaire (1") est placé entre l'élément tubulaire (1') sur lequel est placé le dispositif (18) de raccordement de tige et l'élément tubulaire (1"') sur lequel est placé le dispositif (19) de raccordement d'outil.
  11. Rallonge (10) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une butée est prévue sur au moins un élément tubulaire (1') pour au moins un autre élément tubulaire (1").
  12. Rallonge (10) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle est placée entre une tige de Kelly (ou tige d'entraînement) et un outil de forage (60).
  13. Engin de forage (80) avec :
    - un mât (81),
    - un tige de forage (50) qui s'étend au moins par zones le long du mât (81),
    - un entraînement de forage (82) placé sur le mât (81) pour actionner la tige de forage (50), et
    - un véhicule porteur (83) pour le mât (81),
    caractérisé en ce que, sur la tige de forage (50), est placée une rallonge (10) selon l'une quelconque des revendications précédentes.
  14. Procédé de réalisation d'un trou de forage (90), dans lequel :
    un outil de forage (60), qui est placé sur une tige de forage (50), est descendu,
    caractérisé en ce qu'une rallonge (10) selon l'une quelconque des revendications 1 à 12 est installée entre la tige de forage (50) et l'outil de forage (60), et la rallonge (10) est sortie pour augmenter la profondeur maximale de forage.
EP09008093A 2009-06-19 2009-06-19 Prolongement pour une tige de sondage Not-in-force EP2278115B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09008093A EP2278115B1 (fr) 2009-06-19 2009-06-19 Prolongement pour une tige de sondage
AT09008093T ATE532940T1 (de) 2009-06-19 2009-06-19 Verlängerung für ein bohrgestänge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09008093A EP2278115B1 (fr) 2009-06-19 2009-06-19 Prolongement pour une tige de sondage

Publications (2)

Publication Number Publication Date
EP2278115A1 EP2278115A1 (fr) 2011-01-26
EP2278115B1 true EP2278115B1 (fr) 2011-11-09

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EP09008093A Not-in-force EP2278115B1 (fr) 2009-06-19 2009-06-19 Prolongement pour une tige de sondage

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AT (1) ATE532940T1 (fr)

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CN106285633A (zh) * 2016-10-26 2017-01-04 贵州盘江精煤股份有限公司 一种钻孔通孔测定装置及其测定方法
CN116698499B (zh) * 2023-08-09 2023-10-27 中国海洋大学 一种无人机取样用的定点多深度砂质滩取样装置及方法

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GB755207A (en) * 1954-12-10 1956-08-15 Bataafsche Petroleum Improvements in or relating to well drilling systems and methods of operating such systems
DE4038424C1 (en) 1990-12-01 1992-04-09 Ing. Guenter Klemm Bohrtechnik Gmbh, 5962 Drolshagen, De Kelly borehole drilling arrangement - involves telescopically nested pipes connected to drill head
DE19831755C1 (de) 1998-07-15 1999-12-02 Zueblin Ag Kellystangenverlängerung
GB0226725D0 (en) * 2002-11-15 2002-12-24 Bp Exploration Operating method
DE20301946U1 (de) 2003-02-07 2004-06-09 Bauer Maschinen Gmbh Teleskopierbares Bohrgestänge
US7640998B2 (en) * 2007-03-06 2010-01-05 Howell Jr Richard L Excavation apparatus

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ATE532940T1 (de) 2011-11-15

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