EP0131771A1 - Dispositif de forage notamment pour l'usage dans l'exploitation souterraine - Google Patents

Dispositif de forage notamment pour l'usage dans l'exploitation souterraine Download PDF

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Publication number
EP0131771A1
EP0131771A1 EP84106927A EP84106927A EP0131771A1 EP 0131771 A1 EP0131771 A1 EP 0131771A1 EP 84106927 A EP84106927 A EP 84106927A EP 84106927 A EP84106927 A EP 84106927A EP 0131771 A1 EP0131771 A1 EP 0131771A1
Authority
EP
European Patent Office
Prior art keywords
pressure
drilling
drilling device
hose line
pressure hose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP84106927A
Other languages
German (de)
English (en)
Other versions
EP0131771B1 (fr
Inventor
Klaus Prof. Dr.-Ing. Spies
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT84106927T priority Critical patent/ATE26326T1/de
Publication of EP0131771A1 publication Critical patent/EP0131771A1/fr
Application granted granted Critical
Publication of EP0131771B1 publication Critical patent/EP0131771B1/fr
Expired 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
    • 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
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • 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

Definitions

  • the invention relates to a drilling device, in particular for use in underground mining operations, the drill bit of which is arranged deepest in the borehole for cutting the rock and has high-pressure water jet nozzles and is connected to a high-pressure pump by a flexible high-pressure hose line.
  • Such a drilling device known according to the prior art has the particular advantage that no rigid boring bars are required.
  • the flexible high-pressure hose line allows holes of any length to be produced in one direction from narrow spaces in a mine, the length of the holes being limited only by the length of the high-pressure hose.
  • the known drilling device of the type mentioned has the disadvantage that the boreholes produced with it must have a very large caliber and can only be held in a directionally stable manner with difficulty.
  • the relatively large caliber is necessary because the known drilling device of the rotary drive and the feed drive are arranged deepest in the borehole and require appropriate space. Due to the relatively large caliber, the known drilling device can only be used economically in easily drilled rock, for example for drilling in coal seams for the production of impregnation holes, but not in hard rock for producing small-caliber rock anchor holes or blast holes.
  • the directional stability is poor because the high-pressure hose line cannot provide the drill bit with any guidance.
  • drilling devices which have a flexible shaft as drill rods turn, which stiffens when a torque is applied to a rigid rod.
  • the flexible shaft consists of a flexible inner element and an outer helical spring element, which is also flexible and, when a correspondingly strong torque is transmitted, reduces its diameter in such a way that it presses onto the flexible inner element from the outside and stiffens with it Unity forms.
  • This flexible shaft is detected in this known drilling device directly below the mouth of the borehole by the rotary and feed drive arranged there, so that only the section of the flexible shaft located in the borehole is rigid, while the section of the flexible shaft lying behind the rotating and feed device is flexible remains.
  • This drilling device therefore allows the flexible drill pipe to be angled in any direction.
  • the invention proposes, starting from a drilling device of the type mentioned at the outset, that the high-pressure hose line is torsionally rigid, is connected in a rotationally fixed manner to the drill bit and the rotary drive of the drilling machine and is mounted in a non-rotatable jacket tube which can be deflected elastically from the extended position, which is rigid in the radial direction, is guided in the region of the borehole mouth in a deflection device and can be displaced in its longitudinal direction together with the high-pressure hose line.
  • the invention is based on the knowledge that when drilling with high-pressure water jet nozzles, relatively low feed forces and torques must be transmitted from the drill pipe.
  • the torque to be transmitted only needs to overcome the friction resulting from the rotation of the nozzle drill bit and the high-pressure hose.
  • the feed force only has to compensate for the weight of the nozzle drill bit, the high pressure hose and the cladding tube as well as the recoil force of the nozzles.
  • neither torques nor feed forces need to be transmitted.
  • a torsionally rigid high-pressure hose line is completely sufficient for the transmission of the relatively weak torque.
  • a sufficiently rigid cladding tube that can be deflected elastically from the extended position is also sufficient for the transmission of the relatively low feed forces.
  • the cladding tube cannot be rotated, it can be guided in a particularly simple manner in a deflection device in the region of the borehole mouth and, because of its elastic restoring forces in the borehole, forms a sufficiently precise guide for the drill bit, so that a directionally stable drilling is ensured.
  • the drilling device according to the invention it is possible, for example, to drill anchor holes of any length into the roof layers from a narrow longwall space, the length of which corresponds to a multiple of the seam thickness.
  • anchor holes of any length can be produced from the line edge area, the direction of which runs at an angle to the longitudinal direction of the line. In the same way, it is possible to produce angled boreholes angled from the edge of the route on the face.
  • a preferred embodiment of the drilling device according to the invention provides that the cladding tube consists of a helical spring which is wound from spring steel wire and which lies against one another.
  • a cladding tube is cheap and easy to manufacture, has relatively great rigidity in the extended position and can nevertheless be angled as desired in the region of the deflection device without changing its diameter.
  • the high pressure hose is surrounded by a wear jacket, in particular in the form of a coil spring tightly wound around the high-pressure hose.
  • This helical spring protects the high-pressure hose from wear and is also suitable to a certain extent to support the torsional rigidity of the high-pressure hose.
  • the cladding tube is lined liquid-tight on the inner wall and / or the outer wall and the annular space between the cladding tube and the high-pressure hose is filled with grease.
  • the deflection device In order to give the cladding tube exact guidance over a sufficiently large length in the deflection area, the deflection device has a deflection roller and a link chain-like, angle-adjustable guide equipped with guide rollers, which guides the cladding tube behind the deflection roller.
  • the deflection device has a tapping guide which can be shifted and locked on a guide curve in order to change the deflection angle and with which the link plate is attached chain-like guide is connected, the guide curve being designed such that the link chain-like guide is always tensioned and forms an optimum bending radius for the cladding tube.
  • This deflection device allows the cladding tube and the high-pressure hose guided therein, to the extreme end of which the nozzle drill bit is attached, to be brought into the correct position during drilling and to be pushed in the correct angular position during the entire drilling process.
  • the deflection device In order to ensure a straight course of the cladding tube outside the borehole, the deflection device contains drive rollers, which keep the cladding tube stretched in the longitudinal direction between the deflection device and the drilling machine.
  • the drill is useful on a drill carriage stored and by means of an adjustable feed drive with feed of the cladding tube and the high-pressure hose rotatably mounted therein in the longitudinal direction of the. Movable drill carriage. Since the longitudinal axis of the drill carriage can run at any angle to the longitudinal axis of the borehole, such a drill carriage can easily be set up, for example, on the faceplate or in the edge region of a line.
  • a rotatable pressurized water feed is expediently arranged at the beginning of the high-pressure hose.
  • a hollow shaft is provided which is connected to the high-pressure hose and is driven by the rotary drive of the drilling machine, which is rotatably mounted in a pressurized water pressure housing, is provided in the center with openings for the pressurized water inlet and on both sides through the center symmetrically arranged sealing sleeves is sealed against the pressure housing.
  • the invention continues to see before that the sealing sleeves on the back are acted upon by a second pressure medium of high viscosity, the pressure of which is slightly higher than that of the pressurized water.
  • This highly viscous second pressure medium prevents high-pressure water from passing through the sealing sleeves, but due to its high viscosity only reaches the pressure water in very small quantities.
  • a pressure intensifier is switched on between the high-pressure water and the high viscosity medium, the transmission ratio of which is between 1: 1.1 and 1: 2.
  • the feed speed of the drive rollers of the deflection device, the speed of rotation of the drilling machine and the operating pressure of the high-pressure pump are advantageously regulated in such a way that an optimal drilling progress results depending on the hardness of the rock to be drilled.
  • Such a control device enables optimal drilling results, even if the hardness of the rock to be drilled changes.
  • the feed speed of the feed drive of the drilling machine and the feed speed of the drive rollers of the deflection device are coordinated with one another in such a way that the cladding tube between the drilling machine and the deflection device is always kept tight. On the one hand, this prevents the feed drive of the drive rollers from pulling the heavy drilling machine. On the other hand, it is avoided that the cladding tube between the drill and the deflection device is bent laterally.
  • the device for angled drilling is arranged on a normal drill carriage 1 with a pivotable boom 2 and a drill carriage 3.
  • a different type of manipulator can also accommodate the drill carriage 3, for example a device suitable for mechanical tunneling or the production of anchor drill holes in extraction struts.
  • a nozzle drill bit 4 is arranged at the free end of a pressure supply system, which is designated in its entirety with the reference number 5 and can be deflected by a deflection device 7 directly in front of the borehole mouth 6.
  • a drill 8 can be moved in the longitudinal direction of the drill carriage.
  • the high-pressure water is fed to the drilling machine 8 from a high-pressure pump 10 via a connection high-pressure hose line 9.
  • Rotating and swiveling cylinders 11 and a locking device 12 for fixing the drill carriage 3 complete the device.
  • the drilling machine 8 moves on the drill carriage 3 towards the borehole, while the deflection of the pressure supply system 5 takes place in the deflection device 7. Not the cramped pit space, but only the movement stroke of Bohrmascnine 8 on Bohrlafetze 3 and the total length of the pressure supply system 5 determine the length of the angled borehole.
  • the pressure supply system 5 shown in Figure 2 consists of a torsionally rigid high-pressure hose 13, the clear cross section of which is dimensioned such that the amount of water required for the nozzle core bit 4 can be passed through without too great a loss of pressure, and the bursting pressure is so high that there is sufficient security against it the maximum operating pressure.
  • a helical spring 14 is firmly wound around this high-pressure hose line 13, which serves as wear protection and additionally increases the torsional rigidity.
  • the high-pressure hose 13 and the helical spring 14 are arranged in a cladding tube 15 with a sufficiently large amount of movement, which is also designed as a tightly wound helical spring with adjoining screw threads.
  • the annular space 16 between the helical spring 14 and the cladding tube 15 is filled with lubricant, preferably with grease, in order to avoid mutual contact
  • lubricant preferably with grease
  • the inner wall of the casing tube 15, which is designed as a helical spring is of course lined with a corresponding liquid-tight covering.
  • the design of the cladding tube 15 as a helical spring with adjoining screw threads causes the cladding tube to be relatively stable in the extended position and yet can be deflected by appropriate deflecting forces.
  • FIG 3 shows the basic structure and operation of the device for angled high pressure water drilling.
  • a tapping guide 17 which gives the cladding tube 15 and the high-pressure hose line arranged therein and carrying the nozzle drill bit 4 the required exact guidance at the desired angle during tapping.
  • the tapping guide 17 has a bore 18 which also leads the cladding tube 15 in the desired direction during the normal drilling process.
  • the tapping guide is covered by a collar 19, which causes the drilling water and cuttings emerging from the mouth of the borehole to cause the tapping guide and the other mechanical Do not dirty the equipment or stick it after it has dried out.
  • the tapping guide 17 is displaceable and fixable on a guide curve 20 of the deflection device 7 by movement mechanisms which are not shown in detail.
  • the drilling machine 8 can be moved on the drill carriage 3 by means of a feed drive 23, the feed drive being a hydraulic, electric or compressed air motor with a controllable rotational speed in order to generate a variable feed speed which automatically adapts to the needs of the drilling process.
  • Another motor 24, which is also controllable, generates the rotary movement necessary for drilling via a countershaft 25, the high-pressure water being fed into the high-pressure hose line 13 from the high-pressure pump 10 via the rotatable pressurized water feed 26.
  • a control drive not shown Driven drive rollers 27, which exert an adjustable, low tensile force on the cladding tube 15, are arranged in the deflection device 7.
  • the control motors for the drive rollers 27 as well as the propulsion drive 23 and the motor 24 can be linked to one another by a control system, measured values relating to the drilling progress being input into the control system and automatically guaranteeing an optimal interaction of the drives and thus an optimal drilling process via its logic circuit.
  • the water pressure of the high pressure pump 10 can also be influenced by this control mechanism.
  • the tabs chain-like guide 22 is connected to the tapping guide 17, as already mentioned, in such a way that the tapping guide 17 and the link chain-like guide 22 move together when the deflection angle changes.
  • FIG. 5 shows the essential parts of the pressurized water feeder 26.
  • This pressurized water feeder 26 has a hollow shaft 38 which is rotatably mounted in a pressure housing 39 and has openings 37 in the center for the passage of the high-pressure water and a connection 40 for connecting the high-pressure hose line 13 at one end .
  • the shaft is driven at its opposite end 41 by the motor 24 shown in FIG. 3 and the countershaft 25.
  • the sealing elements for the hollow shaft 38 are constructed symmetrically. The main sealing takes place on the two sealing sleeves 42.
  • the sealing sleeves 42 are from their rear side via chambers 43 with a slightly higher pressure than the one to be sealed via a highly viscous second pressure medium acted upon.
  • a pressure intensifier 44 which is acted upon by the high-pressure water on its full piston surface 45 and by the highly viscous second pressure medium on its annular surface 46, ensures that the sealing sleeves 42 are each subjected to somewhat higher than the operating pressure on their rear side and thereby provide an absolute seal of the high pressure water is achieved.
  • Two further sealing sleeves 47 seal the highly viscous medium. Because of the considerably higher viscosity compared to the high pressure water and the lubricity of the second pressure medium, there are no sealing problems at this sealing point.
  • the sealing sleeves 48 only serve to avoid pressure losses of the highly viscous medium and the ingress of dust.

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  • 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)
EP84106927A 1983-06-22 1984-06-16 Dispositif de forage notamment pour l'usage dans l'exploitation souterraine Expired EP0131771B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84106927T ATE26326T1 (de) 1983-06-22 1984-06-16 Bohreinrichtung, insbesondere zur verwendung im untertaegigen grubenbetrieb.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3322427A DE3322427C2 (de) 1983-06-22 1983-06-22 Bohreinrichtung, insbesondere zur Verwendung im untertägigen Grubenbetrieb
DE3322427 1983-06-22

Publications (2)

Publication Number Publication Date
EP0131771A1 true EP0131771A1 (fr) 1985-01-23
EP0131771B1 EP0131771B1 (fr) 1987-04-01

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EP84106927A Expired EP0131771B1 (fr) 1983-06-22 1984-06-16 Dispositif de forage notamment pour l'usage dans l'exploitation souterraine

Country Status (4)

Country Link
US (1) US4625815A (fr)
EP (1) EP0131771B1 (fr)
AT (1) ATE26326T1 (fr)
DE (1) DE3322427C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001677A1 (fr) * 1986-08-29 1988-03-10 Rudolf Hausherr & Söhne Gmbh & Co Kg Procede et dispositif pour realiser des trous de forage a partir d'une position coudee par rapport a l'axe de forage
FR2652160A1 (fr) * 1989-09-20 1991-03-22 Clot Andre Dispositif permettant de faire penetrer une sonde a l'interieur d'un volume de matiere pouvant etre confinee dans une enceinte fermee eventuellement sous pression ou stockee a l'air libre, d'y effectuer des mesures et de prelever des echantillons.
CN104895484A (zh) * 2015-06-08 2015-09-09 平顶山市铁福来机电设备有限公司 一种煤矿井下履带式钻进冲孔一体化装备
EP3693535A1 (fr) * 2019-02-11 2020-08-12 Sandvik Mining and Construction Oy Agencement de forage, machine et procédé de forage

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US4714118A (en) * 1986-05-22 1987-12-22 Flowmole Corporation Technique for steering and monitoring the orientation of a powered underground boring device
US4856600A (en) * 1986-05-22 1989-08-15 Flowmole Corporation Technique for providing an underground tunnel utilizing a powered boring device
US4896733A (en) * 1986-05-22 1990-01-30 Flowmole Corporation Technique for providing an underground tunnel utilizing a powered boring device
US4821815A (en) * 1986-05-22 1989-04-18 Flowmole Corporation Technique for providing an underground tunnel utilizing a powered boring device
US4714826A (en) * 1986-08-18 1987-12-22 Westinghouse Electric Corp. Apparatus and method for testing outputs of logic circuits by modulating optical sequals
US4867255A (en) * 1988-05-20 1989-09-19 Flowmole Corporation Technique for steering a downhole hammer
DE3905999C1 (fr) * 1989-02-25 1990-01-04 Bergwerksverband Gmbh, 4300 Essen, De
ATE148932T1 (de) * 1989-07-21 1997-02-15 Australian Stone Tech Verfahren und gerät zum schneiden von erosiven materialien unter benutzung von hochdruckwasser
US5699866A (en) 1996-05-10 1997-12-23 Perf Drill, Inc. Sectional drive system
US6523624B1 (en) 2001-01-10 2003-02-25 James E. Cousins Sectional drive system
FR2905724B1 (fr) * 2006-09-13 2008-12-19 Sandvik Mining & Constr Oy Tubage flexible pour dispositif de foration par rotopercussion.
DE102007016823A1 (de) 2007-04-05 2008-11-06 Tracto-Technik Gmbh & Co. Kg Bohrsystem
US7810586B2 (en) 2007-11-19 2010-10-12 Cousins James E Sectional drive and coupling system
CN101922306B (zh) * 2010-08-31 2011-12-07 山西普松自动化设备有限公司 潜水履带式瓦斯闭锁泵车
CN101975054B (zh) * 2010-09-30 2013-01-16 太原理工大学 切割煤层的高压水力割缝机
CN103216226A (zh) * 2012-01-21 2013-07-24 刘素华 水刀切割冲击采掘机
EP2896780A1 (fr) * 2014-01-17 2015-07-22 Sandvik Mining and Construction Lyon SAS Tige de forage flexible
CN105525900B (zh) * 2015-09-11 2017-08-22 重庆大学 煤矿井下煤层树状钻孔复合压裂均匀增透装备
CN105134112B (zh) * 2015-09-11 2017-08-22 重庆大学 煤矿井下瓦斯抽采钻孔的洗孔方法
USD927558S1 (en) 2019-03-05 2021-08-10 Yamamoto Foundation Works Co., Ltd. Boring machine with casing driver
CN113294155B (zh) * 2021-05-21 2023-12-05 重庆大学 一种金属矿脉辅助开采装置
CN113266348A (zh) * 2021-06-24 2021-08-17 中国铁建重工集团股份有限公司 一种集成水射流系统的掘锚一体机及施工方法
CN114151005B (zh) * 2021-11-20 2022-12-02 徐州和盛矿业科技有限公司 一种高效率炮采工作面自适应防护支撑装置

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DE7701175U1 (fr) * D.B.A. Bendix Lockheed Air Equipment S.A., Clichy, Hauts-De-Seine (Frankreich)
FR491425A (fr) * 1917-08-25 1919-06-03 Rotary Scraper C Inc Perfectionnements apportés à la connexion d'arbre flexible
OA01586A (fr) * 1961-12-29 1969-09-20 Inst Francais Du Petrole Tube flexible.
US4149391A (en) * 1975-11-25 1979-04-17 W B Driver Flexible drill pipe
US4112708A (en) * 1976-06-21 1978-09-12 Nippon Cable Systems Inc. Flexible drive cable
DE2739454A1 (de) * 1976-09-01 1978-03-02 Sakura Denki Kk Flexible antriebsverbindung
DE2846007A1 (de) * 1978-10-02 1980-04-10 Foster Miller Ass Flexible welle fuer bohrer bzw. bohrsystem
US4233820A (en) * 1979-02-14 1980-11-18 W B Driver Flexible drill pipe
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988001677A1 (fr) * 1986-08-29 1988-03-10 Rudolf Hausherr & Söhne Gmbh & Co Kg Procede et dispositif pour realiser des trous de forage a partir d'une position coudee par rapport a l'axe de forage
US4905777A (en) * 1986-08-29 1990-03-06 Rudolf Hausherr & Sohne Gmbh & Co. Kg Device for producing drilling holes from an angled position with respect to the drilling axis
FR2652160A1 (fr) * 1989-09-20 1991-03-22 Clot Andre Dispositif permettant de faire penetrer une sonde a l'interieur d'un volume de matiere pouvant etre confinee dans une enceinte fermee eventuellement sous pression ou stockee a l'air libre, d'y effectuer des mesures et de prelever des echantillons.
CN104895484A (zh) * 2015-06-08 2015-09-09 平顶山市铁福来机电设备有限公司 一种煤矿井下履带式钻进冲孔一体化装备
CN104895484B (zh) * 2015-06-08 2017-07-28 平顶山市铁福来机电设备有限公司 一种煤矿井下履带式钻进冲孔一体化装备
EP3693535A1 (fr) * 2019-02-11 2020-08-12 Sandvik Mining and Construction Oy Agencement de forage, machine et procédé de forage

Also Published As

Publication number Publication date
US4625815A (en) 1986-12-02
DE3322427C2 (de) 1985-06-13
EP0131771B1 (fr) 1987-04-01
ATE26326T1 (de) 1987-04-15
DE3322427A1 (de) 1985-01-10

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