EP1157187B1 - Metallschmelze-bohrverfahren - Google Patents

Metallschmelze-bohrverfahren Download PDF

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Publication number
EP1157187B1
EP1157187B1 EP00905039A EP00905039A EP1157187B1 EP 1157187 B1 EP1157187 B1 EP 1157187B1 EP 00905039 A EP00905039 A EP 00905039A EP 00905039 A EP00905039 A EP 00905039A EP 1157187 B1 EP1157187 B1 EP 1157187B1
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EP
European Patent Office
Prior art keywords
melt
foregoing
drilling
pipeline
elements
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00905039A
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German (de)
English (en)
French (fr)
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EP1157187A1 (de
Inventor
Werner Foppe
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Individual
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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
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers

Definitions

  • the present invention relates to a melt-drilling method for introduction dimensionally accurate bores, in particular of large diameter, in rock, at the Abraumschmelze in by the effect of temperature and pressure Cracked surrounding rock is compressed and during drilling By solidifying melt a borehole casing is created.
  • This known drill head made of a high temperature resistant metal, such as e.g. Molybdenum or tungsten is, by means of heating elements on a Temperature above the melting temperature (1000 - 2000 ° C) of the rock heated and by means of consuming extensible jacking rods under high Pressure in the rock, which then melts pressed.
  • a high temperature resistant metal such as e.g. Molybdenum or tungsten
  • the drill head is subject to the Corrosion of the molten rock a great wear, so that this sometimes has to be changed.
  • a melt drilling rig and a method of operating the plant, which are of the compression of the overburden into the surrounding rock and the Borehole casing makes use of is also known from DE 195 01 437 A1 known.
  • the device described here is used in salt tunnels and uses the molten salt itself as a drilling medium.
  • the known systems must be equipped with complex supply lines be equipped to the enormous amount of energy over several kilometers Drill depth to be fed to the drill head for heating.
  • the object of the invention is an energy-saving universally applicable To provide drilling method with which in each rock substrate, both horizontal as well as vertical, especially in continuous jacking Deep holes, shafts and tunnels, especially with large ones Borehole diameters, e.g. more than 1 meter, ready-made can be.
  • the invention also aims to special materials for general Use to be proposed in melt drilling methods.
  • Bohrmedium a metal-containing melt through line elements the is fed by melting to be worn borehole bottom.
  • heated metal containing to carry out the drilling process Melt which is understood to mean pure molten metal, e.g. Molten iron of about 2000 ° C filling temperature, as low viscosity Drilling medium is poured into the drilling direction in the first line element, so that the molten metal directly above the bottom of the hole from the last Leaves line element and the rock of the bottom of the hole melts and erodes.
  • Melt which is understood to mean pure molten metal, e.g. Molten iron of about 2000 ° C filling temperature, as low viscosity Drilling medium is poured into the drilling direction in the first line element, so that the molten metal directly above the bottom of the hole from the last Leaves line element and the rock of the bottom of the hole melts and erodes.
  • the solidified melt which is also a melt mixture of Metal and rock can form, forms between conduction element and Drill hole inside a pressure seal, so that due to the extremely high Temperature gradients in the rock and the pressure generated automatically Tearing of the rock material takes place, especially the lighter Abraumschmelze is pressed into the surrounding rock.
  • the loss of molten metal which is due to the compression and the Solidification can, at the beginning of the hole, the first line element through a tracking of molten metal can be compensated.
  • This tracking can be both continuous and discontinuous, since the volume of on the bottom of the hole upstanding melt column acts as a stock.
  • the method of the invention thus opens up the possibility, even at depths of over 10 kilometers in a single step downhole holes, without promoting the wellbore melt and use coolant, with this method at temperatures above 3000 ° C, rock pressures of above 100 ⁇ 10 6 Pa (1000 bar), melt cutting pressures of up to 1000 ⁇ 10 6 Pa (10,000 bar) or more, and with a line element weight of over 10,000 t at the drilling target, which conventional mechanical drilling technology can not provide.
  • melt used as a drilling medium magnetic metals, e.g. Contains iron, cobalt or nickel, or completely consists of such a metal or metal alloys.
  • magnetic metals e.g. Contains iron, cobalt or nickel, or completely consists of such a metal or metal alloys.
  • erfindungsgmä O method can also be used with various non-magnetic Molten metals, e.g. Copper can be worked, but offers e.g. Iron smelting here in particular, since the cost of such Melt are low, iron is readily available and at atmospheric pressure one high evaporation point of about 3000 ° C has.
  • the drilling devices can not only be the invention Device, but to act around all the Schmelzbohrvortechnischen, as e.g. out US Pat. No. 3,357,505 and especially DE 2 554 101 are known.
  • the line elements that are preferred for Implementation of the method according to the invention are used, such formed in that with the melted or solidified melt mass in Contact surfaces are made of a high temperature resistant material.
  • the material is e.g. so chosen that its coefficient of friction is less than 0.5 and the material a has low surface tension to ensure that between Material and melt no wetting takes place.
  • Graphite can be used as a material material for the drilling device and in particular for the line elements meet all required requirements. This is graphite For example, parallel to the stratification, a good heat and electricity conductor, acts but perpendicular to the stratification as an insulator. Graphite can therefore be used for thermal Isolation of the molten metal and also used for power line. It has Furthermore, a high strength and high lubricity, can be like metal edit and in the green state dimensionally pre-form and traversformen.
  • graphite lies in the fact that it is both of metal as well as the rock melts, as desired, is not wetted and at Normal pressure in a non-oxidizing atmosphere to about 3000 ° C temperature resistant is.
  • graphite is characterized by the fact that the Strength with increasing temperature also increases, the train or Compressive strength at about 2500 ° C its maximum of about 100 or 400 MPa reached.
  • the drilling method is preferably under Schutzgasatmos Georgre carried out, or at least started.
  • the protective gas is Argon, which does not by itself prefer due to its high density escapes the borehole. As drilling progresses, the Graphite elements no longer an oxygen atmosphere, so that the Protective gas supply can be adjusted.
  • conduit elements used for the process are substantially individual cylinder pieces, in particular from the graphite to be understood, which have a central bore.
  • the individual cylinder pieces where the ratio of outside diameter to large inside diameter, and in particular larger than 10 to 1, can be joined together so that a graphite tubing is formed in the Melt drilling method according to the invention both the function of Melt drilling head, drill rig body and supply and pressure linkage takes over.
  • the melt can additionally be heated by electricity to ensure that the melt in the heated liquid state reaches the bottom of the hole.
  • an iron melt as an electrically conductive liquid both the Function of the energy transport to the meltable rock as well as the Take over the function of the conductor.
  • the flow of current can here at a topmost line element, i. at the Start of the hole through the metal melt guided in the line elements, via the molten metal present at the bottom of the hole back over the outer solidified metallic borehole casing to be closed. It is too possible, the flow through the graphite tubing to the melt above the To conduct borehole bottom.
  • the current for heating the molten metal can in this case directly or inductively in the Melt be coupled.
  • Conducting elements e.g. further graphite cylinders on the respective previous element be attached.
  • the thickness of the melt cushion under the graphite tubing is about 10 centimeters.
  • the drilling speed is about 5 mm per second, with too Note that the hole according to the invention without a Bohrkopf circuit, done without cooling and without promotion of overburden.
  • a Bohrkopf crisp is unnecessary because of the graphite existing line elements may be mechanically identical, so that a any burn on the lowest element is not detrimental. However, should Care should be taken here that the exposed to a possible burn each lowest cable segment in the vicinity of the combustion zone none having electrical elements whose burnup destroys or malfunctions leads.
  • An essential point of the inventive concept is that between the solidified cast metal well casing and the outside of graphite existing pipelines due to the extraordinary Material properties of the graphite no obstructive adhesion arises, so that the graphite tubing actually without significant friction losses in the depth can slide and later is just as easy to lift.
  • Electromagnetic control tensile, holding or compressive forces on the Line elements are exercised.
  • the depth of gravity of the Line elements is therefore manipulated, so that the thickness of the Melt pad on which the conduit elements are adjustable.
  • the later uplift can be further facilitated by the fact that the finished Borehole supportive flooded with particular pressurized water is, wherein in the case of intended fluid mining or energy training of the lower production range of such a well remains uncoated and the Melt-glazed borehole wall under the delivery pressure of the water broken up and released the fluids or high temperature geothermal water become.
  • controllable magnetic devices which act as a valve for the supplied molten metal, so that the Flow of the molten metal can be influenced in the interior of the line elements.
  • valves (solenoid valves) according to the invention, it is possible that in each line element by locking the solenoid valve a Part of the entire molten metal strand rising on the bottom of the borehole is worn, so that the increasing weight of the molten metal strand on several breakpoints can be distributed, which result from the fact that the individual line elements of the graphite tube strand with the holding / guiding magnet held in the cast iron casing of the well become.
  • the weight pressure of the molten metal column It is possible to vary the weight pressure of the molten metal column. It can be supplied to the bottom of the well, for example, by the targeted opening of the gas valves a predefined amount of molten metal or impulsively the entire weight of the molten metal strand in the bottom of the hole come into effect by simultaneous opening of all solenoid valves. At a depth of 10,000 m, the pressure of the molten iron column already exceeds 700 ⁇ 16 6 Pa (7000 bar).
  • pulse-like control of the valves can be in the melt above the Borehole bottom causing a vibration that causes a suction effect, thereby freed the bottom of the hole from molten rock and so the Drilling progress increased.
  • the magnetic devices according to the invention for the formation of Holding / guiding magnets or solenoid valves or others Control devices whose effects are based on magnetic forces can e.g. consist of embedded in insulating graphite conductive graphite coils. It is also conceivable, the devices from in coil-shaped graphite channels to form flowing molten metal. Here, the channels in the graphite be formed existing Kauslementen.
  • melt-drilling process in a protective gas-filled pilot hole begins, which is lined with a metal tube, which at the surface, is anchored in particular in a reinforced concrete ceiling.
  • This steel pipe Pre-drilling should have a depth of about 30 to 50 meters, taking at least the bottom meter of metal piping should be left free.
  • the reinforced concrete ceiling is designed to be thick and surrounds the well bore over a large area, thus at the start of the molten metal drilling operation and at the onset crushing of the molten rock and possible molten metal parts in the surrounding rock a breakthrough of Melt is prevented to the surface.
  • the first hole is turned off in the metallic pre-drilled hole Lowered line element, which by means of a manipulator device and / or takes place with the help of arranged in the elements guide / holding magnets.
  • the molten metal is in the interior of the pipe filled until the molten metal between the inserted into the well Conduit elements and the inner wall of the conventional pilot hole to the Ascending edge of metal tube shuttering. There she connects to this by welding.
  • the diameter of the graphite tubing is so too dimensioned that the outside of the pipe elements and the inside of the Metal tube in the heated state abut each other to a Penetrate the liquid molten metal to prevent.
  • the lowermost acting as a drill pipe element at least one Magnetpumpen- / nozzle arrangement, by means of which the molten metal in Form shot at least one melt jet on the bottom of the hole can be.
  • induction coils by the flowing Molten metal itself may be formed (corresponding coil-shaped Flow channels in the drill head), it is possible to overheat the melt jet in such a way that a jet of extraordinarily high temperature of several thousand degrees or a plasma jet with which an extraordinary rate of drilling progresses reach.
  • This superheated melt or plasma jet generated when entering the Melt a local overheating, especially in the middle area, so that there the rock erosion is optimized.
  • the Melting jet directed to the places in the borehole bottom, where the removal is lowest.
  • About the uneven rock erosion in the borehole bottom can be such picture that electrical pulses e.g. over the melt column and / or the graphite pipeline sent to the bottom of the hole and the duration of the there reflected pulses are measured.
  • About the area of Melting column / graphite tube and the duration of the pulses can be such a create topographic image of the bottom of the borehole, evaluate it and evaluate one Achieve control of the melt jet.
  • the drilling process can be advantageously also optimized by the Melt is rotated above the bottom of the hole in rotation, so that the towards the molten metal lighter rock melt upwards and through the centrifugal force is conveyed to the outside and pressed into the cracks.
  • the rotation of the melt can be effected by the magnet arrangement which also deflects the melt jets.
  • the axis of rotation of the melt is given by the melt jet, so that the axis of rotation of Melt is adjustable.
  • the controls may be around at least three conductor in contact with the melt act in the line elements are embedded. By controlling these conductors with Polyphase flow, a Schmelzerotation can be achieved. By different currents at the phases will be the axis of rotation of the rotating melt, in particular by about up to 60 °.
  • melt fractions are heated by the current flow, whereby the Melt fractions remain liquid and by gravity back towards Fall back to the bottom of the hole.
  • a recovery of the molten metal fractions from the rock tears is also still favored by that arranged by the in the line elements Magnets exerted an attraction on the pressed molten metal parts can be.
  • a schematic embodiment of the invention is shown in the figure shown.
  • the pre-drilling with insertion and anchoring of a thick-walled metal pipe (3), e.g. Made of steel, in the underground ensures the start of the molten metal drilling process without additional cooling.
  • the control of the molten metal cone (14) takes place in the Line elements provided control lines from the surface.
  • the molten iron and the liberated rock melt fill the available Space around the drill head element (18) of the graphite tubing (1) under pressure increase in the melt.
  • Part of the molten iron is above the drill head element (18) of the holding magnet (8) to the graphite tubing (I) in a desired Strength, such as the metal tube of the pilot hole, concentrated and to a uniform cast iron casing (11) in continuously progressive Melt drilling process formed.
  • the lighter rock melt drifts on and under the pressure of the pumped melt or under pressure of advancing graphite tubing (1) because of the rock splitting into Side rock pressed.
  • Compressed iron melt is subject to heating by means of current flow and flows when advancing the graphite tubing (I) due to gravity back into the deeper melting zone around the Melt cone (14) back.
  • the drilling progress rate increases with the temperature and relative Pressure increase in the melt beam compared to the ambient melt and its impulse sequence (suction effect) as well as with the circulating speed of the Melting jet or the rotational speed of the rotating melt.
  • the weight of the graphite casing string increases (1) along with molten metal strand, until its weight and that for the Melt compression necessary pressure in the molten zone in equilibrium and the graphite tubing (1) slides on a melt pad.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Solid Wastes (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
EP00905039A 1999-03-05 2000-02-09 Metallschmelze-bohrverfahren Expired - Lifetime EP1157187B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19909836A DE19909836A1 (de) 1999-03-05 1999-03-05 Metallschmelze-Bohrverfahren
DE19909836 1999-03-05
PCT/EP2000/001015 WO2000053883A1 (de) 1999-03-05 2000-02-09 Metallschmelze-bohrverfahren

Publications (2)

Publication Number Publication Date
EP1157187A1 EP1157187A1 (de) 2001-11-28
EP1157187B1 true EP1157187B1 (de) 2005-10-12

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EP00905039A Expired - Lifetime EP1157187B1 (de) 1999-03-05 2000-02-09 Metallschmelze-bohrverfahren

Country Status (14)

Country Link
US (1) US6591920B1 (ja)
EP (1) EP1157187B1 (ja)
JP (1) JP4430242B2 (ja)
CN (1) CN1333150C (ja)
AT (1) ATE306606T1 (ja)
AU (1) AU2670900A (ja)
BR (1) BR0008734B1 (ja)
CA (1) CA2364895C (ja)
DE (2) DE19909836A1 (ja)
DK (1) DK1157187T3 (ja)
ES (1) ES2251356T3 (ja)
MX (1) MXPA01008905A (ja)
RU (1) RU2282704C2 (ja)
WO (1) WO2000053883A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006013836A1 (de) * 2006-03-24 2007-09-27 Werner Foppe Verfahren und Vorrichtung zur sicheren Betreibung von Kernkraftwerken durch sichere Endlagerung hochradioaktiver, wärmeproduzierender Abfälle mittels Selbstversenkung im Erdmantel Vorort
DE102006021330A1 (de) * 2006-05-16 2007-11-22 Werner Foppe Verfahren und Vorrichtung zur optimalen Nutzung von Kohlenstoff-Ressourcen wie Ölfelder, Ölschiefer, Ölsande, Kohle und CO2 durch Einsatz von SC(super-critical)-GeoSteam
DE102008049943A1 (de) 2008-10-02 2010-04-08 Werner Foppe Verfahren und Vorrichtung zum Schmelzbohren

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GB0203252D0 (en) * 2002-02-12 2002-03-27 Univ Strathclyde Plasma channel drilling process
US7556238B2 (en) * 2005-07-20 2009-07-07 Fisher Controls International Llc Emergency shutdown system
US7445041B2 (en) * 2006-02-06 2008-11-04 Shale And Sands Oil Recovery Llc Method and system for extraction of hydrocarbons from oil shale
DE102006018215A1 (de) * 2006-04-25 2007-11-22 Werner Foppe Verfahren und Vorrichtung zur Nutzung von SC-GeoSteam in Kombination mit SC-Wärme- und Druckwasser-Kraftwerke
SK50872007A3 (sk) 2007-06-29 2009-01-07 Ivan Kočiš Zariadenie na exkaváciu hlbinných otvorov v geologickej formácii a spôsob prepravy energií a materiálu v týchto otvoroch
SK50752008A3 (sk) * 2008-08-15 2010-05-07 Jozef G�Ci Zariadenie na hĺbenie otvorov do horninových masívov
SK288264B6 (sk) 2009-02-05 2015-05-05 Ga Drilling, A. S. Zariadenie na vykonávanie hĺbkových vrtov a spôsob vykonávania hĺbkových vrtov
SK50622009A3 (sk) 2009-09-24 2011-05-06 Ivan Kočiš Spôsob rozrušovania materiálov a zariadenie na vykonávanie tohto spôsobu
CN101864920B (zh) * 2010-06-04 2014-11-05 李国民 井下热熔铸管护壁方法
CN101892806B (zh) * 2010-07-07 2012-12-26 龚智勇 高温高压空气喷射破岩钻井的方法及装置
DE202011100196U1 (de) 2011-05-03 2012-08-06 Siegmund Zschippang Vorrichtung für Bohrungen im Erdreich
DE102011100358A1 (de) 2011-05-03 2012-11-08 Siegmund Zschippang Vorrichtung für Bohrungen im Erdreich ohne Bohrturm
US9181754B2 (en) * 2011-08-02 2015-11-10 Haliburton Energy Services, Inc. Pulsed-electric drilling systems and methods with formation evaluation and/or bit position tracking
DE102012020439A1 (de) 2012-10-18 2014-04-24 Werner Foppe Verfahren und Vorrichtung zur Erstellung von SuperDeep-Schmelzbohrschächten
AT518022A1 (de) * 2015-11-17 2017-06-15 Ing Dolezal Horst Plasma-Gesteinsbohrer
CN110792391B (zh) * 2018-08-01 2021-11-09 中国石油化工股份有限公司 耐高温射流冲击器
CN109877975B (zh) * 2019-03-17 2020-07-17 东北石油大学 一种双脉冲等离子破岩发生装置
RU2700143C1 (ru) * 2019-04-15 2019-09-12 федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский горный университет" Тепловой снаряд для бурения плавлением

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006013836A1 (de) * 2006-03-24 2007-09-27 Werner Foppe Verfahren und Vorrichtung zur sicheren Betreibung von Kernkraftwerken durch sichere Endlagerung hochradioaktiver, wärmeproduzierender Abfälle mittels Selbstversenkung im Erdmantel Vorort
DE102006021330A1 (de) * 2006-05-16 2007-11-22 Werner Foppe Verfahren und Vorrichtung zur optimalen Nutzung von Kohlenstoff-Ressourcen wie Ölfelder, Ölschiefer, Ölsande, Kohle und CO2 durch Einsatz von SC(super-critical)-GeoSteam
WO2007131788A1 (de) 2006-05-16 2007-11-22 Radermacher, Franz Josef Verfahren und vorrichtung zur optimalen nutzung von kohlenstoff-ressourcen wie ölfelder, ölschiefer, ölsande, kohle und co2
DE102008049943A1 (de) 2008-10-02 2010-04-08 Werner Foppe Verfahren und Vorrichtung zum Schmelzbohren
WO2010037518A2 (de) * 2008-10-02 2010-04-08 Werner Foppe Verfahren und vorrichtung zum schmelzbohren
WO2010037518A3 (de) * 2008-10-02 2010-06-17 Radermacher, Franz, Josef Verfahren und vorrichtung zum schmelzbohren
CN102203373A (zh) * 2008-10-02 2011-09-28 弗朗茨·约瑟夫·拉德马赫尔 用于熔化钻孔的方法和装置

Also Published As

Publication number Publication date
BR0008734B1 (pt) 2009-05-05
ES2251356T3 (es) 2006-05-01
JP2002538344A (ja) 2002-11-12
JP4430242B2 (ja) 2010-03-10
DK1157187T3 (da) 2006-02-27
CN1333150C (zh) 2007-08-22
RU2282704C2 (ru) 2006-08-27
DE19909836A1 (de) 2000-09-07
WO2000053883A1 (de) 2000-09-14
US6591920B1 (en) 2003-07-15
BR0008734A (pt) 2002-01-02
AU2670900A (en) 2000-09-28
CA2364895C (en) 2008-07-22
MXPA01008905A (es) 2002-10-23
RU2001126935A (ru) 2003-07-20
EP1157187A1 (de) 2001-11-28
CN1342242A (zh) 2002-03-27
ATE306606T1 (de) 2005-10-15
DE50011335D1 (de) 2005-11-17
CA2364895A1 (en) 2000-09-14

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