EP2737154B1 - Dispositif de forage et procédé pour son utilisation - Google Patents

Dispositif de forage et procédé pour son utilisation Download PDF

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Publication number
EP2737154B1
EP2737154B1 EP13781335.8A EP13781335A EP2737154B1 EP 2737154 B1 EP2737154 B1 EP 2737154B1 EP 13781335 A EP13781335 A EP 13781335A EP 2737154 B1 EP2737154 B1 EP 2737154B1
Authority
EP
European Patent Office
Prior art keywords
drill string
borehole
accordance
outside
drill
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
EP13781335.8A
Other languages
German (de)
English (en)
Other versions
EP2737154A4 (fr
EP2737154A1 (fr
Inventor
Sigurd Kjell Haughom
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.)
Norhard As
Original Assignee
Norhard As
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 Norhard As filed Critical Norhard As
Publication of EP2737154A1 publication Critical patent/EP2737154A1/fr
Publication of EP2737154A4 publication Critical patent/EP2737154A4/fr
Application granted granted Critical
Publication of EP2737154B1 publication Critical patent/EP2737154B1/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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/04—Electric drives
    • 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
    • E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
    • 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
    • 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
    • E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor

Definitions

  • the present invention concerns a drilling device. More specifically the invention concerns a drilling device with a non-rotating drill string, the device comprising a drill bit connected to the distal end of the drill string, a drilling machine fixed to the drill string and arranged to be able to rotate the drill bit, and a back rig arranged to be able to run the drill string into and out of a borehole.
  • the invention also concerns a method for using the device.
  • Drill strings in accordance with prior art consist of pipe sections with threaded connections. Fluid is supplied to the drill bit through a centric bore in the drill string. In addition to transmitting torque from a drilling motor, the drill string is also to transmit axial pushing force from a pushing device, a so-called back rig, from the surface and to the drill bit. Drill strings in accordance with prior art thus should have both high rigidity and low weight. As the drill string is screwed together from pipe sections with central bores for fluid transportation, the circulation of fluid must be discontinued upon insertion of each new pipe section. This may be very unfortunate for the drilling process as cuttings may get stuck in the borehole. Connecting and disconnecting pipe sections to/from the drill string is time consuming, and further requires expensive threaded connections between the pipe sections. Modern requirements for efficiency and directional control for drilling processes make more continuous processes and communication desirable.
  • the patent publication WO 2005/121494 A1 discloses a drilling device assigned to a non-rotating drill string assembled from pipe sections.
  • the drill string is run into and out of a borehole by means of a back rig.
  • a water hose is connected to the drill string to transport water therethrough to a drill bit powered by a drilling machine, while a cable for energy supply is connected to the outside of the drill string.
  • the patent publication WO 2011/046444 A1 discloses a drilling device where a drilling machine in a borehole is added drilling fluid, power and control signals through flexible lines or cables respectively, where the lines and cables may be coiled up on reels outside of the borehole.
  • the patent publication US 3301581 A discloses a drilling device, where a rotating drill string is assembled from pipe sections connected by means of bolt connections.
  • US 2677535 A discloses mine roof support beam with a wall drilling end, wherein the beam has an H shaped cross section.
  • the invention has for its object to remedy or reduce at least one of the drawbacks of prior art, or at least to provide a useful alternative to prior art.
  • the invention concerns a drilling device with a non-rotating drill string, the device comprising:
  • the drill string may be composed of steel sections. This may be standardized, commercially available steel profiles of per se known types, as for instance H-beams. Thus, drill strings may be provided without having to thread together pipe sections with centric bores. Drill strings with a non-circular section, may thus be provided, which will make possible a very effective and inexpensive connection of pipe sections.
  • the steel sections may be connected by means of bolt connections.
  • the bolt connections may be of per se known types.
  • the water hose may be wound up on a reel on the outside of the borehole.
  • a continuous water hose may easily be run into the borehole together with the drill string, without having to interrupt the water circulation upon insertion of new drill string sections to the drill string.
  • the cable for transferring power and/or communication to the drilling machines may also be wound up on a reel on the outside of the borehole.
  • the two different reels may be arranged on opposite sides of the drill string.
  • the device may comprise a locking device for fixing the drill string on insertion of new drill string sections to the drill string. This can be appropriate in order to ensure proper connection between subsequent drill string sections.
  • the locking device may comprise a latch pawl connected to a hydraulic cylinder an arranged to be able to engage with holes or recesses in the drill string in order to keep it fixed.
  • the drill string may be provided with knobs for centring the drill string in the borehole. This may be especially appropriate for drill strings provided with a non-circular section centrally placed in the borehole.
  • the invention concerns a method for drilling a borehole by means of a non-rotating drill string, the method comprising the following steps:
  • the method may further comprise to assemble the drill string by means of steel sections such as H-beams.
  • the steel sections may, as mentioned above, be connected by means of bolt connections of per se known type.
  • One embodiment may further comprise to wind up the water hose on a reel on the outside of the borehole, and correspondingly wind up the cable for transferring power and signals on another reel, the two reels possibly being arranged on opposite sides of the drill string.
  • the reference numeral 1 indicates a rock formation in which a borehole 10 is being drilled by means of a drill bit 2 connected to the distal end of a drill string 8.
  • a drilling machine 3, connected to the drill string 8, is arranged to be able to rotate the drill bit 2 in the borehole 10.
  • the drill string 8 is in the embodiment shown formed by connected H-beam sections.
  • Axial force to the drill bit 2, in a direction 26 indicated by an arrow in Figure 1 is transmitted from a back rig 28 outside of the borehole 10 via the drill string 8.
  • the better view of the back rig is in Figure 5 .
  • the back rig 28 is built up by steel structures 12, where the one end of the steel structures 12 is provided with an adapter 13 arranged to be able to be moved back and forth in a direction 29.
  • the adapter 13 is provided with sliding plates 27 slidingly abutting the steel structures 12.
  • the movement of the adapter 13 along the steel structures 12 is provided by a hydraulic cylinder 20 connected to the steel structures 12 spaced from the adapter 13.
  • the device also comprises a locking device 11 arranged to be able to keep the drill string 8 in a fixed position while new drill string sections are connected to the drill string 8, for example by means of bolt connections 19 as shown in detail in Figure 3 .
  • the locking device 11 comprises an outer steel structure 30 wherein a latching pawl 15 is pivotably supported around a bolt connection 16.
  • the latching pawl is arranged to be able to be pivoted by a hydraulic cylinder 14.
  • the distal end of the latching pawl 15 is provided with a locking knob 17 arranged to be able to engage with a hole 18 in the drill string 8, and thus keep the drill string 8 fixed.
  • the locking knob 17 is withdrawn from the hole 18 to release the drill string 8.
  • the drill string 8 is provided with knobs 21 arranged to be able to center the drill string 8 in the borehole 10.
  • a water hose 23 is wound up on a reel 4, while a power- and control-cable 24 is wound up on a reel 5.
  • the reels 4, 5 are arranged on opposite sides of the drill string 8, below the locking device 11.
  • the water hose 23 and the power- and control-cable 24 may thus be placed protected into a groove in the drill string 8.
  • the grooves are the natural, axially running recesses of the H-beam. Water, power and communication may thus be continuously transmitted to the drill bit 2 and the drilling machine 3, also on fastening of new drill string sections to the drill string 8.
  • the water hose 23 and the power- and control-cable 24 may be connected to the drill string 8 by means of per se known connecting means.
  • the drill string 8 is provided with knobs 21 arranged to be able to center the drill string 8 in the borehole 10.
  • a water hose 23 is wound up on a reel 4, while a power- and control-cable 24 is wound up on a reel 5.
  • the reels 4, 5 are arranged on opposite sides of the drill string 8, below the locking device 11.
  • the water hose 23 and the power- and control-cable 24 may thus be placed protected into a groove in the drill string 8.
  • the grooves are the natural, axially running recesses of the H-beam. Water, power and communication may thus be continuously transmitted to the drill bit 2 and the drilling machine 3, also on fastening of new drill string sections to the drill string 8.
  • the water hose 23 and the power- and control-cable 24 may be connected to the drill string 8 by means of per se known connecting means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Claims (14)

  1. Un dispositif de forage ayant un train de forage non rotatif (8), le dispositif comprenant:
    - un trépan de forage (2) connecté à l'extrémité distale du train de forage (8) ;
    - une machine de forage (3) fixée au train de forage (8) et agencée de façon à être apte à faire tourner le trépan de forage (2) ; et
    - une plateforme arrière (28) agencée de façon à être apte à mener le train de forage (8) vers l'intérieur et vers l'extérieur d'un trou de forage (10), caractérisé en ce que le dispositif comprend d'avantage ;
    - un tuyau à eau (23) agencé de façon à être apte à être passé depuis l'extérieur et vers l'intérieur du trou de forage (10) ensemble avec le train de forage (8) sensiblement le long de la totalité de la longueur du train de forage (8) ; et
    - un câble d'alimentation et de signaux (24) agencé de façon à être apte à être passé depuis l'extérieur et vers l'intérieur du trou de forage (10) avec le train de forage (8).
  2. Le dispositif selon la revendication 1, le train de forage (8) étant composé de sections en acier formées en poutrelles à forme H.
  3. Le dispositif selon la revendication 2, dans lequel les sections en acier sont assemblées par moyen de connexions boulonnées.
  4. Le dispositif selon l'une quelconque des revendications précédentes, dans lequel le tuyau à eau (23) est supporté par une bobine (4) sur le côté extérieur du trou de forage (10).
  5. Le dispositif selon l'une quelconque des revendications précédentes, ou le câble d'alimentation et de signaux (24) est supporté par une bobine (5) sur le côté extérieur du trou de forage (10).
  6. Le dispositif selon l'une quelconque des revendications précédentes, le dispositif comprenant un dispositif de verrouillage (11) pour fixer le train de forage (8) pendant l'insertion de nouvelles sections de train de forage au train de forage (8).
  7. Le dispositif selon la revendication 6, le dispositif de verrouillage (11) comprenant un cliquet à verrouillage (15) connecté à un cylindre hydraulique (14).
  8. Le dispositif selon l'une quelconque des revendications précédentes, ou le train de forage (8) est pourvu de poignées (21) pour centrer le train de forage (8) dans le trou de forage (10).
  9. Un procédé pour forer un trou de forage (10) au moyen d'un train de forage non-rotatif (8), le procédé comprenant les étapes suivantes :
    - tourner un trépan de forage (2) connecté à l'extrémité distale du train de forage (8), au moyen d'une machine à forer (3) ;
    - passer le train de forage (8) dans le trou de forage (10) au moyen d'une plateforme arrière (28), caractérisé en ce que le procédé comprend d'avantage les étapes de :
    - passer un tuyau à eau (23) ensemble avec le train de forage (8) à l'intérieur du trou de forage (10) depuis l'extérieur sensiblement le long de la totalité de la longueur du train de forage (8) ; et
    - passer un câble d'alimentation et de signaux ensemble avec le train de forage (8) à l'intérieur du trou de forage (10) depuis l'extérieur.
  10. Le procédé selon la revendication 9, le procédé comprenant d'avantage assembler le train de forage au moyen de sections en acier comme des poutrelles à forme H.
  11. Le procédé selon la revendication 10, le procédé comprenant d'avantage assembler les sections en acier au moyen de connexions boulonnées.
  12. Le procédé selon la revendication 9, 10 ou 11, le procédé comprenant d'avantage enrouler le tuyau à eau (23) et le câble d'alimentation et de signaux (24) sur des bobines (4, 5) du côté extérieur du trou de forage (10).
  13. Le procédé selon l'une quelconque des revendications 8 à 12, le procédé comprenant d'avantage, fixer le train de forage (8) au moyen d'un dispositif de verrouillage (11) pendant l'insertion de nouvelles sections au train de forage (8).
  14. Le procédé selon l'une quelconque des revendications 8 à 14, le procédé comprenant d'avantage, centrer le train de forage (8) dans un trou de forage (10) au moyen de poignées (21).
EP13781335.8A 2012-04-23 2013-04-23 Dispositif de forage et procédé pour son utilisation Not-in-force EP2737154B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20120473A NO334472B1 (no) 2012-04-23 2012-04-23 Anordning for boring og fremgangsmåte ved bruk av samme
PCT/NO2013/050068 WO2013162377A1 (fr) 2012-04-23 2013-04-23 Dispositif de forage et procédé pour son utilisation

Publications (3)

Publication Number Publication Date
EP2737154A1 EP2737154A1 (fr) 2014-06-04
EP2737154A4 EP2737154A4 (fr) 2016-01-13
EP2737154B1 true EP2737154B1 (fr) 2016-10-19

Family

ID=49483554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13781335.8A Not-in-force EP2737154B1 (fr) 2012-04-23 2013-04-23 Dispositif de forage et procédé pour son utilisation

Country Status (3)

Country Link
EP (1) EP2737154B1 (fr)
NO (1) NO334472B1 (fr)
WO (1) WO2013162377A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO344923B1 (no) * 2018-12-19 2020-06-29 Norhard As System og framgangsmåte for sammenkopling og adskillelse av borestrengseksjoner

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677535A (en) 1950-02-17 1954-05-04 Paul V Malloy Mine roof support beam with wall drilling end
US3301581A (en) * 1965-09-30 1967-01-31 Robbins & Assoc James S Drilling shafts
US3888319A (en) * 1973-11-26 1975-06-10 Continental Oil Co Control system for a drilling apparatus
US4040494A (en) * 1975-06-09 1977-08-09 Smith International, Inc. Drill director
US4281723A (en) * 1980-02-22 1981-08-04 Conoco, Inc. Control system for a drilling apparatus
NO322195B1 (no) * 2004-06-11 2006-08-28 Sira Kvina Kraftselskap Anordning ved bergboremaskin.
NO332477B1 (no) * 2009-10-13 2012-09-24 Norwegian Hard Rock Drilling As Bergboremaskin med selvgående opprømmer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
NO334472B1 (no) 2014-03-17
NO20120473A1 (no) 2013-10-24
EP2737154A4 (fr) 2016-01-13
EP2737154A1 (fr) 2014-06-04
WO2013162377A1 (fr) 2013-10-31

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