EP2246520B1 - Agencement de barre Kelly - Google Patents

Agencement de barre Kelly Download PDF

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Publication number
EP2246520B1
EP2246520B1 EP09005752A EP09005752A EP2246520B1 EP 2246520 B1 EP2246520 B1 EP 2246520B1 EP 09005752 A EP09005752 A EP 09005752A EP 09005752 A EP09005752 A EP 09005752A EP 2246520 B1 EP2246520 B1 EP 2246520B1
Authority
EP
European Patent Office
Prior art keywords
bar
kelly
axially
inner rod
spring
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.)
Active
Application number
EP09005752A
Other languages
German (de)
English (en)
Other versions
EP2246520A1 (fr
Inventor
Karl Johannes Dipl.-Ing. Krollmann
Melchior Jais
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 Maschinen GmbH
Original Assignee
Bauer Maschinen 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 Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to EP09005752A priority Critical patent/EP2246520B1/fr
Priority to AT09005752T priority patent/ATE513116T1/de
Priority to US12/763,669 priority patent/US8246474B2/en
Priority to CN201010171492.2A priority patent/CN101871326B/zh
Priority to BRPI1001323-7A priority patent/BRPI1001323B1/pt
Publication of EP2246520A1 publication Critical patent/EP2246520A1/fr
Priority to HK11103116.0A priority patent/HK1149061A1/xx
Application granted granted Critical
Publication of EP2246520B1 publication Critical patent/EP2246520B1/fr
Active 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
    • 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

Definitions

  • the invention relates to a Kelly rod assembly according to the preamble of claim 1.
  • Such Kelly rod assembly is formed with an inner rod and at least one outer rod, wherein the inner rod against the at least one outer rod axially movable, but rotatably disposed, and with a spring device, which in a lower Area of the inner rod for cushioning an axial movement of the inner rod relative to the at least one outer rod is arranged.
  • Such telescoping Kelly bar arrangements can be used in so-called Kelly drilling, which is one of the most flexible techniques, for example for the production of foundation piles for buildings.
  • a telescopic drill pipe the so-called kelly linkage
  • the kelly linkage consists of several nested tubular Kelly bars.
  • the innermost Kelly bar hangs on a rope of the drill and can be moved up and down by means of the rope. This telescopes the Kelly linkage.
  • the drilling tool is attached.
  • Such KellygestCode is for example from the EP 1 445 418 A1 known.
  • Another KellygestCodeanrangement is from the JP 2004-278170 known.
  • a bearing flange is provided on the inner rod of the Kelly linkage. If the inner rod is now pulled back upwards by means of the rope of the drill, then the further outward rods come to lie on this support flange, and are subsequently also pulled upwards.
  • a spring means may be provided with a coil spring to cushion the collision of the adjacent Kellystangenimplantation when retracting the linkage.
  • Such spring elements are for example in the EP 0 798 444 A1 , of the DE 40 38 424 C1 , of the JP 2-256788 , of the JP 6-185283 and the JP 2003-278474 described.
  • the JP 6-185283 and the JP 2003-278474 can be provided above the spring device additional damping body.
  • the DE 87 14 201 U1 teaches to provide a plastic coating on the support collar which prevents pipes from hitting the metal of the collar.
  • the GB 1 221 261 It is considered to be the closest prior art and describes a telescopic boring bar having a damping ring which mitigates the impact of collapsing the bar. From the US 4,257,245 demonstrates the use of elastomeric materials in drill pipe assemblies.
  • the object of the invention is to provide a Kelly bar arrangement which can be operated particularly reliably and in particular with low noise in a particularly simple construction.
  • the Kelly rod assembly according to the invention is characterized in that the spring means is formed as an elastomeric spring having a plurality of elastomeric spring elements, wherein at least two elastomeric spring elements are provided which are interconnected via an intermediate bearing ring, and wherein the intermediate bearing ring axially projecting connecting elements, which penetrate into the adjacent elastomeric spring element ,
  • an elastomeric spring instead of providing a known coil spring at the lower end of the inner rod an elastomeric spring.
  • an elastomer spring which may also be referred to as a rubber spring, usually has a body of elastomeric material, for example of natural or synthetic rubber. Due to the internal friction of the elastomer material, such elastomer springs have, in addition to a spring effect, a damping effect. Due to this damping effect can with the inventive Spring device occurring on the inner rod shocks not only cushioned, but are also at least partially degraded. Unwanted vibrations on the kelly bars can thus be prevented and the load on the kelly bar arrangement can be reduced.
  • the spring device has a double function, and serves not only as a spring element but also as a damping element, additional damping elements, which according to the prior art are provided in addition to the spring device, can be eliminated according to the invention. If the damping is to be further improved, however, it is basically also possible according to the invention to provide such additional damping elements.
  • the inner rod which may also be referred to as prevailkelly, at least partially radially disposed within the outer rod, so that a telescopic arrangement is given.
  • a plurality of telescopically arranged outer rods can also be provided according to the invention.
  • the individual rods are expediently arranged coaxially. As far as the axial direction and the radial direction are mentioned in connection with the invention, this refers in particular to the longitudinal axes of the individual rods.
  • Mit supportive instrumentaln and / or driving grooves may be provided on the rods, which ensure a torque transmission with axial displacement.
  • This is particularly advantageous in the case of a circular rod cross section.
  • the non-rotatable, but axially movable arrangement can also be ensured, for example, by a polygonal, in particular square, rod cross-section.
  • the at least one outer rod is suitably hollow, that is tubular.
  • the inner rod is suitably also tubular in order to save weight. For a particularly good power consumption, however, it can also be made solid at least in some areas.
  • the elastomeric spring has a plurality of elastomeric spring elements.
  • the elastomeric spring consists of a plurality of separate elastomeric spring elements. In this way, a particularly resilient elastomer spring can be obtained in a particularly simple manner, which is particularly adapted specifically to the requirements of the respective Kelly rod arrangement.
  • the elastomeric spring elements are arranged axially in series.
  • a package of elastomeric spring elements may be provided, which are arranged one above the other along the longitudinal axis of the Kelly bars.
  • the elastomeric spring elements are annular. This makes it possible to postpone the elastomer spring elements in a particularly simple manner on the inner rod.
  • the annular elastomeric spring elements are arranged on the outer lateral surface of the inner rod, preferably coaxially with the inner rod.
  • the annular elastomeric spring elements have an arched outward arch shape.
  • the radially projecting arcuate shape can be provided even with unloaded spring element, so that under load a directional compression can be done by widening the arch shape.
  • On the inside of the ring of the elastomeric spring elements may be formed at the height of the arch shape, a groove in the elastomeric spring element.
  • Another aspect of the invention is that at least two elastomeric spring elements are provided, which are interconnected via an intermediate bearing ring.
  • Such intermediate bearing ring can be a friction the elastomeric spring elements against each other and thus prevent unwanted abrasion of the elastomeric spring elements.
  • the intermediate bearing ring is expediently plate-shaped.
  • three or more elastomeric spring elements are provided, wherein each adjacent elastomeric spring elements are interconnected via a separate intermediate bearing ring.
  • the intermediate bearing ring has axially projecting connecting elements, which penetrate into the adjacent elastomeric spring element.
  • These connecting elements may be formed, for example, as nubs. Through such connecting elements, which penetrate into the elastomer, can be effected in an advantageous manner mutual guidance of the individual elastomeric spring elements, which can also be referred to as elastomeric buffer.
  • the at least one intermediate bearing ring made of metal, in particular made of steel.
  • the protruding connecting elements are integrally formed on the intermediate bearing ring.
  • the connecting elements may be formed by crimped or deep-drawn knobs on the steel plates.
  • annular bearing collar is axially fixed to the inner rod
  • annular support flange is provided for the at least one outer rod axially adjustable to the inner rod axially above the bearing collar, in particular on Inner rod is mounted, and that designed as an elastomeric spring means between the axially fixed bearing collar and the axially adjustable support flange is arranged.
  • the axially adjustable support flange can serve as a driver, which entrains at least the adjacent outer rod when pulling up the inner rod and thus causes a telescopic retraction of the Kelly rod assembly.
  • the support flange can also form a stop for the outermost outer rod, which at Retracted Kelly rod secures the inner rod to the outermost outer rod.
  • the spring device which is arranged between the annular support flange and the bearing collar, absorbs the impact between support flange and inner rod and thus the impact between outer rod and inner rod. Since, according to the exemplary embodiment, the elastomer spring is arranged axially between the bearing flange and the bearing collar, the elastomer parts are protected by the bearing flange against contact with the at least one outer rod, so that undesirable abrasion is counteracted.
  • a fastening device for a tool is arranged at the lower end of the inner rod.
  • the fastening device can, for example, have an outer polygonal profile, in particular an external square, for example a so-called kelly square.
  • a fastening device for a lifting device in particular a rope is arranged at the upper end of the inner rod.
  • the fastening device may for example have an eyelet.
  • a fastening device for a drill drive is arranged at the upper end of the radially outer outer rod.
  • the elastomeric spring elements are formed from an elastomeric material having a high internal friction, in particular a rubber mixture.
  • FIG Fig. 1 An exemplary embodiment of a Kelly bar arrangement according to the invention is shown in FIG Fig. 1 shown.
  • the Kelly rod assembly has three tubular outer rods 5 ', 5 "and 5"' and a further tubular inner rod 4.
  • the individual rods 4 and 5 'to 5'” are arranged coaxially, one inside the other and telescopically, whereby the outer rod 5 '" forms the radially outermost rod.
  • the outer rod 5 ' forms the radially outermost rod.
  • adjacent the outer rod 5' is arranged in the interior of this outer rod 5 "'is adjacent to the outer rod 5" is provided, in turn, adjacent the outer rod 5' is arranged.
  • Inside the outer rod 5 ' is finally adjacent the inner rod 4 is provided.
  • the outermost outer rod 5 "' is provided on the outermost outer rod 5'" a fastening device 51 for a drill drive, not shown in the figures.
  • This fastening device is designed in the shape of a flange and prevents slippage of the outermost outer rod 5 "'through the hollow shaft of the drill drive ,
  • the inner rod 4 has an extension 40 which, even in the inserted state, protrudes downward beyond the outer rods 5, 5 'and 5'.
  • the extension 40 can also be tubular or solid
  • this fastening device 49 being formed as an external square profile with a retaining hole provided for a hoisting rope, which has an eyelet.
  • the inner rod 4 has at its lower end, ie at its extension 40, an annular bearing collar 42 which projects radially from the inner rod 4. Above this bearing collar a support flange 41 is provided, which surrounds the inner rod 4 annular. This support flange 41 forms a stop for the outer rods 5 ', 5 "and 5"'. While the bearing collar 42 is provided axially fixed to the inner rod 4, the support flange 41 is mounted relative to the inner rod 4 axially movable on the inner rod 4. Between the support flange 41 and the bearing collar 42, a spring device 1 according to the invention is provided, which surrounds the inner rod 4 in an annular manner. By means of this spring device 1, which below in connection with the FIGS. 2 to 4 is described in more detail, the movable support flange 41 is sprung relative to the fixed bearing collar 42.
  • a torque is applied to the outermost outer bar via a drill drive (not shown) in the region of the fastening device 51
  • This torque is successively transmitted via the entrainment strips 61 to the outer rods 5 "and 5 'located further inwards, and finally to the inner rod 4, which in turn transmits the torque via the fastening device 49 to the drilling tool (not shown).
  • the inner rod 4 is lowered by lowering the hoist rope, which is attached to the fastening device 48.
  • the individual rods 4, 5 extend successively telescopically.
  • the inner rod 4 is raised via the hoist cable to the fastening device 48.
  • the support flange 41 on the inner rod 4 comes successively at the lower end of the outer rod 5 'and then the outer rod 5 "to support and takes these outer rods 5' and 5" up with.
  • the retraction is completed when the support flange 41 comes at the lower end of the outermost outer rod 5 '"to rest.
  • the annular spring means 1 of the inner rod 4 is formed as an elastomeric spring. It has in the illustrated embodiment, three separate elastomeric spring elements 10 ', 10 ", 10"', which are arranged as a spring assembly in the axial direction one above the other.
  • the individual elastomeric spring elements 10 ', 10 ", 10'" are each formed with the same shape and preferably also have the same material. As in Fig.
  • the elastomeric spring elements 10 are annular, wherein on the outer lateral surface an annular bulge is provided radially outwardly, which forms an arcuate shape in longitudinal section 14.
  • an annular groove 15 is provided at the level of the arcuate shape 14.
  • the elastomeric spring elements 10 thus have a radially outward bulge, which can expand radially outwardly during compression of the spring device 1.
  • the individual elastomeric spring elements 10 are separated in the axial direction by plate-shaped intermediate bearing rings 21, which surround the inner rod 4 annular.
  • a first intermediate bearing ring 21 'and between the elastomeric spring element 10" and 10 "' a second intermediate bearing ring 21" is provided, wherein the intermediate bearing rings 21 'and 21 "are formed substantially identical.
  • one end bearing ring 26 'or 26" is provided in each case.
  • the Endlagerring 26 ' is the spring device 1 on the bearing collar 42, and on the Endlagerring 26 "on the support flange 41st
  • the intermediate bearing rings 21 each have a plurality of knob-shaped connecting elements 22 which protrude axially from the intermediate bearing ring 21.
  • These connecting elements 22 are preferably formed integrally with the intermediate bearing ring 21 and may for example be formed by crimping or drawing, possibly following the introduction of corresponding holes.
  • the connecting elements 22 engage in adjacent elastomer spring elements 10 and fix the adjacent elastomer spring elements 10 relative to the intermediate bearing ring 21.
  • Fig. 4 shows, are provided along the circumference of the intermediate bearing rings 21 in an alternating sequence upwardly projecting connecting elements 22 'and downwardly projecting connecting elements 22 ", which engage in the next upper or the next lower elastomeric spring element 10.
  • axial forces are introduced to the elastomeric spring elements 10 via the Endlagerringe. These axial forces, which arise when abutting the inner rod 4 with its support flange 41 on the outer rods 5, not only cushioned by the elastomeric spring elements 10, but also attenuated.
  • the connecting elements 22 and 27 simultaneously ensure that the individual elastomeric spring elements 10 and the rings 21 and 26 remain in a defined position to each other.
  • the individual elastomer spring elements 10 are compressed in the axial direction. This is accompanied by a radial expansion, which manifests itself by a radial widening of the arch form 14.
  • FIGS. 5 to 7 Another embodiment of a Kelly bar arrangement according to the invention is in the FIGS. 5 to 7 shown. For clarity, only the lower portion of the inner rod 4 is shown in these figures, whereas the outer rods have been omitted. These can in analogy to the embodiment of the Fig. 1 be arranged. This in the embodiment of FIGS. 5 to 7 used spring element 1 corresponds to the spring element 1 of FIGS. 1 to 4 and will therefore not be explained again in detail.
  • Fig. 7 shows, in the embodiment of the FIGS. 5 to 7 the inner rod 4, an upper tube 46 and a semi-solid extension 40, which adjoins the upper tube 46.
  • the extension 40 is formed with the same diameter as the upper tube 46 and has an inner bore.
  • the fastening means 49 is provided for the drilling tool on which the extension 40 is solid.
  • an annular step 44 is formed, at which the extension 40 tapers towards the fastening device 49.
  • Fig. 7 further shows is according to the embodiment of the FIGS. 5 to 7 the bearing collar 42 is arranged at the lower end of a sleeve 43 which surrounds the inner rod 4.
  • the sleeve 43 extends both in the region of the extension 40 and in the region of the upper tube 46.
  • the bearing collar 42 is arranged so that it is aligned with the step 44 of the extension 40.
  • the spring device 1 with the elastomer spring elements 10 is pushed onto the sleeve 43, that is to say the spring device 1 with the elastomer spring elements 10 is located in the axial direction at the level of the sleeve 43.
  • a spacer ring 71 is arranged, which also surrounds the sleeve 43 due to its position.
  • the spacer ring 71 may be made of metal, for example steel.
  • a damping material such as an elastomeric material.
  • the spacer ring 71 is formed in the form of a cylinder ring.
  • FIG. 7 further shows, the support flange 41 of the embodiment of FIGS. 5 to 7 offset from the sleeve 43, that is above the sleeve 43, mounted axially displaceably on the upper tube 46 of the inner rod 4.
  • the support flange 41 on several functional sections.
  • an annular guide portion 31 is provided, in which the support flange 41 rests against the inner rod 4, and in which the support flange 41 is guided on the inner rod 4.
  • the guide portion 31 simultaneously forms the stop for driving in the FIGS. 5 to 7 outer rod, not shown.
  • annular operating portion 32 is provided at the bottom of the annular guide portion 31, an annular operating portion 32 is provided. This operating portion 32 is spaced from the inner rod 4.
  • the actuating portion 32 of the support flange 41 is located on the spring device 1, in particular on the upper end bearing ring 26 "on.
  • the support flange 41 has grooves 34 which correspond to the entrainment strips 61 on the inner rod 4. These axially extending grooves 61, which are arranged in the guide portion 31, provide a positive fit Guide the support flange 41 on the inner rod 4 and prevent the support flange 41 rotates on the inner rod 4. For the same reason, axially extending grooves may also be provided on the sleeve 43, which grooves correspond to the entrainment bars 61.
  • Fig. 6 also shows axially extending grooves 78 are provided in the bearing collar 42, which can serve for example for the rotationally fixed fixing of the fastening device 49.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Springs (AREA)

Claims (8)

  1. Agencement de tige Kelly (ou tige d'entraînement) avec une tige intérieure (4) et au moins une tige extérieure (5), la tige intérieure (4) étant mobile axialement par rapport à ladite au moins une tige extérieure (5), mais étant montée fixe en rotation, et avec un dispositif à ressort (1) qui est placé dans une partie inférieure de la tige intérieure (4) pour suspendre un mouvement axial de la tige intérieure (4) par rapport à ladite au moins une tige extérieure (5),
    caractérisé en ce que le dispositif à ressort (1) est conformé en ressort en élastomère, qui comprend plusieurs éléments (10) de ressort en élastomère,
    dans lequel au moins deux éléments (10) de ressort en élastomère sont prévus, qui sont reliés entre eux par une bague-support intermédiaire (21), et
    dans lequel la bague-support intermédiaire (21) comprend des éléments de jonction (22) en saillie axiale qui s'engagent dans l'élément (10) de ressort en élastomère voisin.
  2. Agencement de tige Kelly selon la revendication 1, caractérisé en ce que les éléments (10) de ressort en élastomère sont disposés axialement en rangée.
  3. Agencement de tige Kelly selon la revendication 1 ou 2, caractérisé en ce que les éléments (10) de ressort en élastomère sont réalisés annulaires, avec une forme courbe (14) bombée vers l'extérieur.
  4. Agencement de tige Kelly selon l'une quelconque des revendications précédentes, caractérisé
    en ce que la bague-support intermédiaire (21) est fabriquée en métal, et
    en ce que les éléments de jonction (22) en saillie sont réalisés par déformation du métal, d'un seul tenant sur la bague-support intermédiaire (21).
  5. Agencement de tige Kelly selon l'une quelconque des revendications précédentes, caractérisé
    en ce qu' une collerette-support annulaire (42) est prévue de manière fixe axialement sur la tige intérieure (4),
    en ce qu'une bride d'appui annulaire (41) est prévue pour ladite au moins une tige extérieure (5), qui est montée mobile axialement par rapport à la tige intérieure (4), axialement au-dessus de la collerette support (42), et
    en ce que le dispositif à ressort (1) conformé en ressort en élastomère est placé entre la collerette-support (42) fixe axialement et la bride d'appui (41) mobile axialement.
  6. Agencement de tige Kelly selon l'une quelconque des revendications précédentes, caractérisé
    en ce qu' à l'extrémité inférieure de la tige intérieure (4) est placé un dispositif de fixation (49) pour un outil, en particulier un outil de forage, et
    en ce qu'à l'extrémité supérieure de la tige intérieure (4) est placé un dispositif de fixation (48) pour un dispositif de levage, en particulier un câble.
  7. Agencement de tige Kelly selon l'une quelconque des revendications précédentes, caractérisé en ce qu'à l'extrémité supérieure de la tige extérieure (5"') la plus extérieure radialement est placé un dispositif de fixation (51) pour un entraînement de forage.
  8. Agencement de tige Kelly selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments de ressort (10) en élastomère sont formés d'un matériau élastomère présentant un frottement interne élevé, en particulier un mélange de caoutchouc.
EP09005752A 2009-04-24 2009-04-24 Agencement de barre Kelly Active EP2246520B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP09005752A EP2246520B1 (fr) 2009-04-24 2009-04-24 Agencement de barre Kelly
AT09005752T ATE513116T1 (de) 2009-04-24 2009-04-24 Kellystangenanordnung
US12/763,669 US8246474B2 (en) 2009-04-24 2010-04-20 Kelly bar arrangement
CN201010171492.2A CN101871326B (zh) 2009-04-24 2010-04-22 钻杆装置
BRPI1001323-7A BRPI1001323B1 (pt) 2009-04-24 2010-04-27 Conjunto de barras kelly
HK11103116.0A HK1149061A1 (en) 2009-04-24 2011-03-28 Kelly bar assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09005752A EP2246520B1 (fr) 2009-04-24 2009-04-24 Agencement de barre Kelly

Publications (2)

Publication Number Publication Date
EP2246520A1 EP2246520A1 (fr) 2010-11-03
EP2246520B1 true EP2246520B1 (fr) 2011-06-15

Family

ID=41066493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09005752A Active EP2246520B1 (fr) 2009-04-24 2009-04-24 Agencement de barre Kelly

Country Status (6)

Country Link
US (1) US8246474B2 (fr)
EP (1) EP2246520B1 (fr)
CN (1) CN101871326B (fr)
AT (1) ATE513116T1 (fr)
BR (1) BRPI1001323B1 (fr)
HK (1) HK1149061A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103939027B (zh) * 2014-03-01 2015-10-28 河南华生科能机电科技有限公司 减震减噪的冲击钻杆结构
NL1043302B1 (en) * 2019-06-17 2021-01-25 Magali Shachar Tubular drive assembly
EP3779117A1 (fr) * 2019-08-16 2021-02-17 BAUER Maschinen GmbH Dispositif de tige d'entraînement pour un appareil de forage et procédé de traitement du sol
CN110424899B (zh) * 2019-09-02 2024-05-10 三门峡丽源环保工程设备有限公司 一种伸缩钻杆及用于该伸缩钻杆的清洗装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2587105A (en) * 1949-03-01 1952-02-26 Baash Ross Tool Co Shock-absorber for rotary drilling kellys
US3517760A (en) 1968-03-22 1970-06-30 Delmag Maschinenfabrik Telescopic drill rods for soil drilling equipments
US3526284A (en) * 1969-01-13 1970-09-01 Bossco Inc Drill string shock absorber
US3802322A (en) * 1970-12-16 1974-04-09 Sealol Bellows
US3750423A (en) * 1972-06-28 1973-08-07 Dresser Ind Borehole shock absorber
US4257245A (en) 1979-09-13 1981-03-24 Well Control, Inc. Compression shock absorber device
EP0138603A3 (fr) * 1983-10-13 1986-04-23 Texas Forge & Tool Limited Conduites et tiges
SE453860B (sv) * 1984-12-17 1988-03-07 Komatsu Mfg Co Ltd Flexibel manovreringsanordning av korrugerad tryckslang
US4693317A (en) * 1985-06-03 1987-09-15 Halliburton Company Method and apparatus for absorbing shock
DE8714201U1 (de) 1987-10-24 1988-03-10 Ing. Günter Klemm, Spezialunternehmen für Bohrtechnik, 5962 Drolshagen Kellystange für ein Erdbohrgerät
JPH0689625B2 (ja) 1988-07-11 1994-11-09 日立建機株式会社 アースドリルのケリーバ
US4844181A (en) * 1988-08-19 1989-07-04 Grey Bassinger Floating sub
US5263899A (en) 1990-06-12 1993-11-23 Hitachi Construction Machinery Co., Ltd. Cylindrical telescopic kelly-bar apparatus
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
JP2892243B2 (ja) 1992-12-21 1999-05-17 日立建機株式会社 伸縮式ケリーバ装置
JP3686621B2 (ja) 2002-03-25 2005-08-24 日本車輌製造株式会社 伸縮式ケリーバ
DE20301946U1 (de) 2003-02-07 2004-06-09 Bauer Maschinen Gmbh Teleskopierbares Bohrgestänge
JP3998198B2 (ja) 2003-03-17 2007-10-24 日立建機株式会社 ケリーバの落下衝撃吸収装置
US20090023502A1 (en) * 2007-07-18 2009-01-22 Diamond Back - Quantum Drilling Motors, L.L.C. Downhole shock absorber for torsional and axial loads
CN201152151Y (zh) * 2008-02-04 2008-11-19 中信重型机械公司 一种用于传递扭矩、传输流体的法兰式双壁钻杆

Also Published As

Publication number Publication date
EP2246520A1 (fr) 2010-11-03
US20110105235A1 (en) 2011-05-05
US8246474B2 (en) 2012-08-21
CN101871326A (zh) 2010-10-27
HK1149061A1 (en) 2011-09-23
CN101871326B (zh) 2012-12-19
BRPI1001323B1 (pt) 2019-04-09
BRPI1001323A2 (pt) 2013-12-24
ATE513116T1 (de) 2011-07-15

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