EP2740894A1 - Agencement et procédé d'apport de chaleur dans une formation géologique au moyen d'une induction électromagnétique - Google Patents

Agencement et procédé d'apport de chaleur dans une formation géologique au moyen d'une induction électromagnétique Download PDF

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Publication number
EP2740894A1
EP2740894A1 EP12195930.8A EP12195930A EP2740894A1 EP 2740894 A1 EP2740894 A1 EP 2740894A1 EP 12195930 A EP12195930 A EP 12195930A EP 2740894 A1 EP2740894 A1 EP 2740894A1
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EP
European Patent Office
Prior art keywords
conductor
bore
oil
deposit
arrangement according
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.)
Ceased
Application number
EP12195930.8A
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German (de)
English (en)
Inventor
Erfindernennung liegt noch nicht vor Die
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.)
Siemens AG
Wintershall Dea GmbH
Original Assignee
Siemens AG
Wintershall Holding 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 Siemens AG, Wintershall Holding GmbH filed Critical Siemens AG
Priority to EP12195930.8A priority Critical patent/EP2740894A1/fr
Priority to EP13799240.0A priority patent/EP2920417A1/fr
Priority to BR112015013195A priority patent/BR112015013195A2/pt
Priority to PCT/EP2013/074457 priority patent/WO2014086594A1/fr
Priority to RU2015126797A priority patent/RU2015126797A/ru
Priority to US14/650,302 priority patent/US10087715B2/en
Priority to CA2893876A priority patent/CA2893876A1/fr
Publication of EP2740894A1 publication Critical patent/EP2740894A1/fr
Ceased legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/04—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using electrical heaters
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C41/00—Methods of underground or surface mining; Layouts therefor
    • E21C41/16—Methods of underground mining; Layouts therefor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
    • H05B2214/03—Heating of hydrocarbons

Definitions

  • the invention relates to an arrangement and a method for introducing heat into a geological formation, in particular in a present in a geological formation deposit, in particular for the production of a hydrocarbonaceous substance - in particular oil - from the deposit, wherein an opening of the deposit with shafts, tunnels , Routes or other mine structures.
  • the invention relates in particular to the recovery of viscous, high-viscosity and bitumen-type petroleum oils.
  • SAGD steam assisted gravity drainage
  • CSS cyclic steam stimulation
  • THAI toe to heel air injection
  • VAPEX vapor extraction process
  • the most widely used and applied "in situ" process for the promotion of viscous oils and bitumen is the SAGD process, which is exemplified below.
  • steam is pressed under pressure through a horizontal bore within the reservoir, the borehole is equipped for this purpose with a special slotted injection pipe.
  • the heated, molten and detached from the sand or rock bitumen / heavy oil seeps to a second slotted pipe - the production pipe - that in about 5 m (distance from the injector and production pipe depending on reservoir geometry) deeper horizontal wellbore is introduced and through which the liquefied bitumen / heavy oil is extracted.
  • the water vapor fulfills several tasks at the same time, namely the introduction of heating energy for liquefaction, the detachment of the sand, and the pressure build-up in the reservoir, on the one hand to make the reservoir permeable to bitumen transport (permeability) and on the other hand to facilitate the promotion of bitumen.
  • SAGD phase a steam circulation phase over several months followed by a production phase (SAGD phase), in which case the steam injection is continued.
  • a method for mining development is, for example, from the abstract of the patent application RU2268356 in which steam from a mining tunnel (shaft) is introduced into a zone to then promote oil.
  • the invention relates to an arrangement for introducing heat into a geological formation, in particular in a geological formation - ie in the underground - present deposit, in particular for the recovery of a hydrocarbonaceous substance - in particular oil - from the deposit, wherein in the geological formation at least one underground mine construction is mined and the mine construction comprises at least one shaft and / or at least one route.
  • the mining manufacture of mine construction is particularly for a pit mining or
  • an electrical conductor is at least partially introduced in the geological formation, wherein the conductor extends in a first conductor piece within the mine.
  • the conductor has at least one conductor section which is designed such that, in operation, an electromagnetic field acts on the ground adjacent to the conductor section by means of electromagnetic induction, so that an increase in temperature and thus a reduction in the viscosity of one in the adjacent soil present substance is effected.
  • This heated substance is, in particular, the said hydrocarbon-containing substance, in particular petroleum present in the subsurface.
  • introduction of heat is to be understood in particular as the introduction of heat or the achievement of a temperature increase, so that a higher temperature is established within the deposit.
  • the increase in temperature has an effect on organic substances of the neighboring soil.
  • the increase in temperature preferably results from the fact that in electrically conductive layers of the soil due to the electromagnetic field eddy currents form by induction, which then produce Joule heat, which cause a temperature increase and thus a reduction in the viscosity of the substance located in the ground.
  • tunnel is understood to mean a mine construction that is largely horizontal or slightly rising, with the tunnel beginning at the surface of the day.
  • Routes and tunnels are thus usually underground passages. They preferably have at least one cross-section that personnel, equipment or cleared soil can pass through the track or the tunnel.
  • a mere bore for a pipe should not be understood as a route or tunnel.
  • adjacent soil is the surrounding soil surrounding the electrical conductor or ground with a distance from the electrical conductor, if in the distance nor the electromagnetic field of the conductor acts.
  • soil is to be understood as sandy, possibly solidified, cemented rock as well as rocky rock, including all substances contained in the soil, such as the hydrocarbon-containing, oily components to be delivered.
  • the invention is particularly advantageous in that because of already existing or previously introduced mine structures - ie shafts, routes and / or tunnels - simplified drilling can be used to the electrical conductor and drainage lines for conveying the fluid substance, consisting essentially of crude oil and water to bring in.
  • the electrical conductor is formed in the preferred embodiment as a closed uninterrupted loop, with the return conductor to a frequency generator can be connected, which energizes the electrical conductor with a designated frequency.
  • a predominantly straight bore from / to the shaft or from / to the track can be created for the conductor.
  • a bore for a production pipe for the routing of a liquid product from or to the shaft or track can be performed.
  • injection tubes for the introduction of a fluid in the ground which can also be installed in holes from or to the shaft or from or to the track. Due to the inclusion of shafts and routes for further drilling, largely straight, curvature-free holes for the installation of the conductor can be performed.
  • the shafts and stretches can also be used for collecting and for transporting the product.
  • the shafts and tracks of the frequency generator or other electronic components for the operation of the electrical conductor can be installed.
  • the shafts and tracks allow a portion of the ladder to be positioned in a hoistway and / or a track, particularly along the length of the hoistway and / or the track or even across the hoistway and / or the track.
  • the shafts and routes allow a simplified installation of the conductor in the form of a conductor loop having two substantially parallel conductor sections, with low curve radii of the conductor loop, because the curve of the conductor loop in the shaft and / or track can be done.
  • a hole of curved radii in the ground can thus be avoided or the number of curved holes can be reduced.
  • a desired loop for the electrical conductor is preferably formed so that the electrical conductor is guided through a bore of the frequency generator in a route, there within the track, possibly with a transition to another route, is led to the next hole, which leads back to the frequency generator.
  • the invention also relates to an installation method, wherein at least one shaft and / or at least one route for a shaft excavation is laid in the ground. Furthermore, a hole is made for a conductor in which an electrical conductor is at least partially immersed in the ground - i. into the geological formation - is introduced.
  • the invention also relates to an operating method in which, for an aforementioned arrangement of the conductor is operated so that in operation an electromagnetic field acts on the conductor portion adjacent ground by means of electromagnetic induction, so that an increase in temperature and thus a reduction of Viscosity of the substance present in the adjacent soil is effected.
  • an electrical conductor which in operation purposely surrounds an electromagnetic field so that a surrounding soil is heated by means of electromagnetic induction.
  • electromagnetic induction is carried out according to the invention above a threshold below the inevitable induction processes as by-products.
  • a first conductor piece of the conductor is arranged in the at least one shaft and / or in the at least one path. This can be implemented so that the conductor in this first conductor piece has no direct physical contact with the soil and is not directly enclosed by the soil.
  • the first conductor piece can come freely in the shaft or track to lie down. As a result, in particular small radii of curvature of the conductor are possible. In addition, access to the ladder by installation or operating personnel is possible.
  • a at least one bore provided for the installation of the electrical conductor can have a curved section and a quasi-horizontal section. Furthermore, the hole in the mine can end.
  • a second conductor piece of the conductor can be arranged in a hole in the ground and be in contact with the soil.
  • the conductor can be sheathed and / or the bore can be cased, so that the transition of the conductor to the surrounding soil on this mantle and / or this pipe and / or cavities in the ground takes place. It should be understood that this is not a thermal or electrical transition between conductor and soil, but only a surrounding field of the conductor.
  • the conductor is in particular without it surrounding piping laid.
  • non-metallic tubing may be used.
  • a sheath of the conductor made of non-metallic material.
  • two substantially parallel bores can be made between two substantially parallel - ie quasi-parallel - bores, and the conductor is drawn into the parallel sections and the parallel bores so that the conductor forms a conductor loop.
  • This can preferably be carried out in such a way that a conductor loop with a first conductor section can be laid substantially horizontally in a first bore and the first bore can terminate in a first route extending substantially at right angles thereto, and furthermore in that the conductor loop is connected to a second conductor.
  • Section in a second bore may be laid substantially horizontally and the second bore may terminate in the substantially perpendicular thereto first distance, and moreover, the conductor loop may comprise a third conductor portion which may be arranged in the first path and a connection between the first Can provide conductor section and the second conductor section.
  • the first conductor section is guided via the first bore or via the at least one shaft to the earth's surface and that the second conductor section is guided via the second bore or via the at least one shaft to the earth's surface.
  • a frequency generator installed on the surface for energizing the electrical conductor can be connected to the conductor.
  • a conductor loop can be brought together and / or closed in a mine construction, in particular in a second route. This can be done in particular by having two conductor ends in the immediate vicinity be brought to each other so as to connect to a frequency generator can.
  • This can preferably be implemented so that the first conductor section ends at the first distance opposite the first hole in a substantially perpendicular to the first bore extending second distance and that the second conductor portion at the first distance opposite end over the second bore terminates in the second path extending substantially at right angles to the second bore and at least a fourth conductor section of the conductor loop - preferably two fourth conductor sections - is arranged in the second path.
  • the two fourth conductor sections preferably run in opposite directions towards each other.
  • the frequency generator and / or further electronic components for operating the electrical conductor on the surface - upper - be arranged.
  • at least a fifth conductor section of the conductor loop can be arranged in a vertical bore extending from the second track or a vertical shaft extending from the second track, wherein the at least one fifth conductor section preferably provides a connection to a frequency generator.
  • "Vertical" is understood to mean that such a bore or slot has a vertical vector component that is larger than a horizontal vector component of the bore or slot. Ideally, the horizontal vector component is zero so that there is a perfectly vertical orientation.
  • the fifth conductor section may thus be substantially vertical or inclined with respect to the surface.
  • bores and tubes installed in them can preferably be provided, via which the substance can be discharged or via which water can be fed in liquid form or as a vapor, possibly with the addition of further components such as electrolytes.
  • This may preferably be such that between two arranged at a first depth substantially parallel conductor sections parallel to an injection tube for feeding a fluid to be injected into the reservoir and / or a production pipe - a collecting pipe - for discharging a fluid removed from the reservoir is arranged.
  • the said tubes can be slit and formed permeable in another form, so that liquid and / or gas - possibly including smaller solids - can enter or exit.
  • a supply of the fluid to be injected to the injection tube may preferably via the at least one pit - a shaft, a track and / or a tunnel - done.
  • a discharge and / or collection of the removed fluid from the production pipe can take place via the at least one pit construction.
  • an injection pipe and / or a production pipe can be arranged within the first bore in addition to the conductor or after removal of the conductor as an alternative to the conductor. Furthermore, within the second bore, in addition to the conductor or after removal of the conductor, as an alternative to the conductor, an injection tube for injecting a fluid to be injected into the reservoir and / or a production tube for discharging a fluid withdrawn from the reservoir may be arranged.
  • a frequency generator can be provided for operating the conductor.
  • the frequency generator can be arranged on the earth's surface or in the mine.
  • ends of the conductor in particular in underground installation of the high-frequency generator, can be connected in an explosion-proof and / or weather-resistant terminal box, which can be sealed against the frequency generator and protected against explosion.
  • two of the at least one shafts or stretches can be arranged quasi-parallel.
  • the at least one route - or both of the two routes mentioned - can be arranged in the direction of sweeping of an oil-carrying layer.
  • One or more holes provided for the conductor between the pit structures may be arranged at an inclination of the fall line or in the levitation direction of the oil bearing layer.
  • a first of the at least one route can be arranged in the ridge rocks of an oil-bearing layer and a second of the at least one route in the brine rocks of the oil-carrying layer.
  • the pit construction may be provided in an oil bearing layer of the deposit and / or in by-products of the deposit.
  • the provision in the secondary rocks may preferably be formed such that a first of the at least one route in the ridge rocks of an oil-bearing layer and that a second of the at least one route in the brines of the oil-carrying layer (5) are arranged.
  • At least two further quasi-parallel bores can be arranged in the oil-carrying layer with an intervening gap.
  • the design according to the invention further includes, in addition to the above explained as a structural arrangement ideas, the necessary construction steps - ie drilling holes, digging, drilling and insertion of shafts and stretches including required static stabilization measures, the insertion of the conductor in the Drilling or mine construction (routes or shafts).
  • the operating methods for the arrangements described above are to be understood as belonging to the invention or as a further development thereto. In particular, this applies to the operation of the installed underground conductor by applying the conductor with AC voltage, preferably for obtaining the - especially hydrocarbon-containing substance.
  • the method for introducing heat into a geological formation, in particular into a deposit which is present in a geological formation, in particular for obtaining a hydrocarbon-containing substance, in particular bound petroleum in an arrangement described above can be made in time after a flow through the current-carrying conductor Increasing the temperature of a heated zone of up to 120-140 ° C, the heated zone with an aqueous fluid medium comprising water and preferably at least one glucan having a ⁇ -1,3-glycosidically linked main chain and ⁇ -1,6-glycosidically linked side groups to be flooded.
  • the glucan may preferably have a weight-average molecular weight of 1.5 * 10e6 to 25 * 10e6 g / mol.
  • inventions of the invention furthermore relate, in particular, to the following aspects, wherein concepts formulated as methods also disclose an arrangement for carrying out this method, or vice versa:
  • a first embodiment relates to a method for oil production by pit mining, the deposit can be digested mining down the vertical or inclined shafts / tunnels and the tracks can be driven as mine construction, at least two holes can be drilled in the oil-bearing layers in the holes the electrical wires that make up the induction loop form, can be laid, the deposit inductively heated and the petroleum can be promoted with reduced viscosity, at least one mine can be drilled in the oil-bearing layer or in the adjacent rocks of the oil-bearing layer and - especially from the surface - at least two holes with quasi-horizontal , Quasi-parallel sections can be drilled to the junction of the pit construction from one side, the axes of the quasi-horizontal borehole sections quasi-perpendicular oriented to the axis of the mine and the electrical lines in the two holes and in the mine can be laid with a loop.
  • the holes may be drilled at least in two rows, the rows of holes may be positioned to the left and right of the pit construction axis, and the pit may be crossed by quasi-horizontal wellbore sections from both sides.
  • the inductor can be energized until an increase in temperature of the heated zone in the reservoir to up to 120 ° C or up to 140 ° C. After this temperature increase of the heated zone, the heated zone can be flooded with aqueous fluid medium.
  • this fluid medium may comprise at least one glucan (G) having a ⁇ -1,3-glycosidically linked main chain and ⁇ -1,6-glycosidically linked side groups, the glucan having a weight average molecular weight Mw of 1.5 * 10e6 25 * 10e6 g / mol.
  • the flood medium can be pressed into the deposit from the mine workings.
  • a first horizontal bore can be used as an injector and another horizontal bore as a production well.
  • At least one pit can be drilled in the oil-bearing layer or in the secondary rocks of the oil-bearing layer and the bores are drilled with quasi-horizontal, quasi-parallel sections to the junction of the mine from one side, the axes of the quasi-horizontal borehole sections quasi-perpendicular to the axis of Mining can be oriented and the electrical lines in the two holes and in the mine can be laid with the formation of a loop.
  • the holes may be drilled at least in two rows, wherein the rows of holes can be positioned to the left and right of the pit construction axis and the mine can be crossed from both sides with quasi-horizontal wellbore sections.
  • a frequency generator can be provided, which feeds the inductor loop with a frequency between 1 kHz and 500 kHz.
  • the frequency generator may be designed explosion-proof in a special embodiment.
  • the ends of the induction loop can be connected in a specially arranged, separate explosion-proof terminal box, which is sealed against the frequency generator explosion-proof and sealed.
  • the frequency generator can be designed as a converter with power semiconductors. These can preferably be water-cooled and recooled via a special recooler via the mine water.
  • thermosiphon if no recooling medium is provided, a heat pipe or a thermosiphon be installed, which is an explosion-proof Cooling allowed and works independently of an external cooling medium.
  • the inverter can be designed in a special design, which is containerized weatherproof and in which the power components are mounted shockproof.
  • the invention further relates in one embodiment, a method for oil production by pit mining, the deposit mining can be digested, abteuft the vertical or inclined shafts / tunnels and the tracks can be driven as mine work, the holes can be drilled in the oil-bearing layers, in the holes, the electrical lines that form the induction loop, can be laid, the deposit inductively heated and petroleum can be promoted with reduced viscosity, at least two quasi-parallel mine structures can be driven in the oil-bearing layer or in the adjacent rocks, at least between the mines two continuous quasi-parallel holes can be drilled in the holes, the induction loop can be laid, wherein the initial portion and the end portion of the induction loop can be arranged in a pit and a part d he induction loop in the other pit construction between two bore entrances can be freely laid.
  • the mine in which the starting portion and the end portion of the induction loop are arranged, can be connected by a quasivertikale bore with a top.
  • a quasivertikale bore with a top.
  • sections of the induction loop or electrical leads for connecting the induction loop to the frequency generator or the electric power source can be laid.
  • the electrical conductor may be formed as an induction line so that he high-frequency current, loss as Operated resonant circuit, can carry. Since both ends are preferably connected to the frequency generator, the induction line forms an induction loop. The technical realization of the electrical line is performed as a resonant circuit.
  • the frequency generator can be designed as a frequency converter, which converts a voltage having a frequency of 50 Hz or 60 Hz from the mains into a voltage with a frequency in the range of 1 kHz to 500 kHz.
  • the frequency converter can be installed on a day-to-day basis. Alternatively, the frequency converter can be placed in a pit.
  • the two quasi-parallel mine structures can preferably be ascended at different depths.
  • the start portion and the end portion of the induction loop may be located in the pit that is higher than the second pit.
  • At least one non-continuous production well can be drilled from a mine that connects the heated reservoir zone to one of two quasi-parallel well structures.
  • At least one production well may preferably be drilled in the storage zone heated by the induction loop.
  • At least one non-continuous injection well from a mine can be drilled between two continuous quasi-parallel bores in which the induction loop is arranged.
  • the through holes in which the returning or the supplying electrical Conduction of the induction loop are laid, are used as production wells.
  • the hole can be used simultaneously or in succession for the induction loop and for the removal of production.
  • the freed from the electrical line bore can be used as a production well.
  • the freed from the electrical line bore is used as injection hole.
  • the return or the feeding electrical line of the induction loop can be removed from a bore and routed in an adjacent through bore.
  • the orientation of the holes is carried out according to the geological conditions.
  • the two quasi-parallel mining structures can be driven in the direction of strike of the oil-bearing layer and the through-holes drilled in the dip or in the levitation of the oil-bearing layer.
  • a mine in the ridges of the oil bearing layer and the second mine in the brines of the oil-bearing layer can be driven.
  • the oil deposit can be developed by disc removal and opposite to the direction of fall (floating disturbance), whereby for each disc two quasiparallel pits can be driven.
  • Drilling holes are drilled in the oil bearing layer and a gap is formed between the additional holes.
  • Continuous gaps can be formed between additional holes with a Seilschrämetic.
  • the mining structures can be ascended at least in two conveying horizons, driving through passages in each conveying horizon between the mining structures, and connecting the through-holes with through-holes bored in the oil-bearing layer.
  • the previous embodiments are directed essentially to the heating for the promotion of present in the deposit petroleum or other carbonaceous substances.
  • the method according to the invention can also be used in other environments or fields of application, mining, tunneling and / or construction. For example, by heating induction-excitable substances, recovery of e.g. supported by metals from ore deposits.
  • the underground leaching is a well-known and widely used technology in the mining of many metals such as uranium, gold, copper, cobalt.
  • different aqueous solutions eg weak solution of sulfuric acid
  • the solutions filter through the porous or fissured rocks / ores.
  • the oxidizing solution mobilizes the metals, with the efficiency of mobilization and / or leaching highly dependent on the temperature of the reservoir and / or the solution.
  • the use of the described device allows the temperature increase directly in the ore deposit, which reduces the leaching time and increases the yield.
  • the figures show an oil reservoir - hereinafter also reservoir, production layer or merely referred to as reservoir - with highly viscous petroleum or bitumen or heavy oil (for example, a dynamic viscosity, ie viscosity, from 200 to 1000000 cP, where cP stands for centi-poise, and wherein the values given in the SI system correspond to 0.2 to 1000 Ns / m 2 ), which, for example, lies at a depth - also referred to as depth in the mining industry - below the earth's surface of 50 to 1200 meters.
  • This oil deposit should be open to mining in the figures or be, ie it is developed for mining by means of mine construction and includes shafts and routes.
  • a mine is to be understood as a mine construction in mining, with which the deposit is opened up from the surface - above ground. Manholes serve to transport people and material.
  • shafts for the promotion of degradation products - eg serve the hydrocarbonaceous substance to be pumped, especially petroleum - as well as the ventilation or fresh air supply.
  • a shaft is, in particular, significantly larger in size than a diameter of a current-carrying conductor over which an electromagnetic field is to be built up in the underground during operation.
  • a shaft runs vertically or inclined to the vertical in the underground, ie in the geological formation.
  • a mining mines which is designed as a largely horizontal or slightly inclined, elongated cavity and adjacent to the deposit or passes through the deposit. Routes can be connected to other routes and are protected by shafts.
  • FIG. 1 schematically shows a simplified structure of a simple pit construction as a section in plan view.
  • Two shafts 1 are provided to connect to the surface. Furthermore, distances 2, 3, 4 are provided in the illustrated plane.
  • the routes 2 are preferably available for access in the deposit underground. Lanes 3 and 4 are preferably substantially parallel stretches that enclose or penetrate a potential oil-bearing layer.
  • the surrounding area may be referred to as reservoir block 12 as a deposit according to the invention and preferably comprises fractions of petroleum.
  • the vertical or inclined shafts 1 are sunk into the ground - that is driven into the subsurface mining.
  • the routes 2, 3, 4 are created as a further mine in the underground.
  • the mine construction - ie the shafts 1 and the Lines 2, 3, 4 - are preferably positioned or ascended in secondary rocks of oil-bearing layers or directly in the oil-carrying layer. Conventional mining equipment and machinery can be used for this.
  • the mine structures can be used for the ventilation of the mine construction network - ie the supply of air -, the transport of materials and the oil to be demanded.
  • two substantially parallel sections 3 and 4 are created in the underground.
  • the routes 3, 4 can be horizontal or inclined.
  • the stretches 3, 4 should preferably be erected or raised in the oil-bearing layer or in the adjacent rocks - next to the oil-bearing layer.
  • At least two continuous quasi-parallel bores 6 are drilled into which the electrical line can be laid.
  • the continuous quasi-parallel holes 6 are after FIG. 1 Underground starting from one track - eg track 3 - and ending in another track - eg track 4 - drilled.
  • Conventional mobile mining drilling rigs can be used for this.
  • the cost of the construction of the holes 6 are in this case much lower than the possible drilling costs when drilling these holes directly from the surface, especially because only a straight hole is sufficient and drilling a curve is not needed.
  • FIG. 1 is a section AA transverse to the routes 3 and 4 and indicated along the bore 6, which is now in FIG. 2 is considered further.
  • the routes 3 and 4 are arranged in the underground. These stretches can be in a horizontal plane (not shown) or as in FIG. 2 indicated to be arranged at different depths. Between the distances 3 and 4 are the holes 6 - in section of FIG. 2 only one hole 6 can be seen - provided to install through it an inductor cable.
  • the distance between the routes 3 and 4 can be, for example, from 20 to 1000 meters wide.
  • the two quasi-parallel sections 3 and 4 may be arranged in the direction of the direction of the oil-bearing layer 5 and the holes 6 drilled in the direction of incidence or slippage of the oil-bearing layer 5 as a connection between the sections 3 and 4 become ( Fig. 2A ).
  • the two quasi-parallel sections 3 and 4 can be built directly in the oil-bearing layer 5 (see. Fig. 2A ), especially when the rocks of the oil-bearing layer are stable and gas excretion from the rocks of the oil-bearing layer 5 is low, and the oil is highly viscous and does not escape under the forces of gravity and bearing pressure in the routes 3 and 4.
  • One or both of the two quasi-parallel sections 3 and 4 can also be built in secondary rocks 18 above, below or next to the oil-bearing layer 5 (cf. Figs. 2B and 2C ), which are often more stable than the rocks of the oil-bearing layer 5.
  • FIG. 3A Based Fig. 3A is now out for one Fig. 1 and 2 Known arrangement of lines 3 and 4, and holes 6 in a plan view of a largely horizontal sectional plane schematically illustrates how an inductor cable can be installed and what physical effects arise during operation.
  • an electrical conductor 7 is laid, which is designed as a conductor loop.
  • the electrical conductor 7 is designed as a so-called inductor and is operated in operation with AC voltage, so that builds up around the conductor 7, an alternating electromagnetic field, which in turn stimulates eddy currents in the naturally existing electrical conductivity of the reservoir, so that Joule heat generated - ie in the reservoir block 12 - located bound oil or other liquids are thus heated indirectly or directly.
  • the conductor 7 preferably consists of a sequence of inductively and capacitively acting elements which form a series resonant circuit formed as a loop whose ends are connected to the frequency generator which energizes the loop.
  • the electrical conductor 7 forms a conductor loop in which a substantially straight start section 71 comes to rest in the section 4, then continues over a bend 74 into a predominantly straight second line section 75. This second line section 75 is guided in one of the bores 6.
  • the conductor 7 is then positioned over a further curvature 6 by a third largely straight line section 73 in route 3.
  • a transition to a substantially straight fourth line section 76 takes place, which comes to rest within a further bore 6.
  • Via a further curvature 74 the transition into the original path 4 takes place, in which an end section 72 of the conductor 7 is arranged. In this way, an almost completely closed conductor loop is formed.
  • the frequency generator which is to be attached to the start section 72 and to the end section 71. This can be done within the course 4.
  • the conductor 7 may be connected to the surface or inwardly by a substantially vertical bore 8 by means of two further conduit sections which adjoin the initial section 72 and the end section 71 another mining level are performed, where in turn the frequency generator can be arranged.
  • the conductor 7 is laid in the holes 7 which are provided explicitly for the conductor 7, wherein the start section 71 and the end section 72 of the induction loop of the conductor 7 are arranged in section 4 and released there can be moved. Furthermore, the third line section 73 of the induction loop is laid freely in the path 3 arranged quasiparallel to the section 4 between the two bore entries of the bores 6.
  • the distance between the continuous quasi-parallel bores 6 may for example be in the interval of 10 to 200 meters.
  • Typical distances between the return conductors - the second line section 75 is regarded as a forward conductor and the fourth line section 76 as a return conductor - which form the induction loop of the conductor 7 are 5 to 60 m with an outer diameter of the conductor 7 of 4 to 50 cm ,
  • the track is 4 in Fig. 3A in which the initial portion 71 and the end portion 72 of the induction loop are arranged, connected by a quasivertikale bore 8 with a top.
  • electrical leads 10 shown in FIG Fig. 8 ) for the connection of the induction loop to the electric power source or the frequency generator 11 (see Fig. 8 ).
  • the vertical bore 8 can also be formed as a shaft 1.
  • the electrical leads 10 for the connection of the induction loop can thus be laid in the shaft 1.
  • the electrical leads 10 may also be formed as an inductor.
  • the electrical Feeders 10 may be formed as a cable with few losses, the first in the Fig. 3A Plane becomes an inductor that generates a significant electromagnetic field.
  • the frequency generator 11 or the frequency converter can also be placed underground in a mine, e.g. in route 4.
  • the frequency generator 11 preferably has an explosion-proof and / or weatherproof design.
  • a hole 8 can be provided for each storage block 12 or per conductor loop.
  • a bore 8 may be provided for many conductor loops and / or for many reservoir blocks 12.
  • an alternating electric field is formed around the conductor 7, which excites eddy currents in the naturally existing electrical conductivity of the soil surrounding the conductor and thus inductively heats the soil by generating Joule heat.
  • This heating zone 13 as surrounding soil is also in Fig. 3A shown, wherein the heating does not adjust only in the illustrated sectional plane, but in a three-dimensional volume.
  • the two quasi-parallel routes or mine structures 3 and 4 can, as already in relation to Fig. 2 explained, are arranged in the different depths, that are driven at different Teufe, wherein the initial portion 71 and the end portion 72 of the induction loop 7 in the higher of the two sections 3, 4 can be arranged.
  • the different depth of the routes 3 and 4 (as in Fig. 2 shown) favors the inflow of oils warmed up in reservoir block 12 through the wells and fissures in the deeper mine structures where the oil is collected and will continue to flow to a so-called swamp - a collection point.
  • a conductor 7 may have a longitudinal inductance of 1.0 to 2.7 ⁇ H / m (micro Henry per meter length).
  • the cross-capacitance coating is, for example, 10 to 100 pF / m (pico Farad per meter length).
  • the characteristic frequency of the array is due to the loop length and shape and the transverse capacitance across the inductor loop.
  • the conductor loop or induction loop acts as an induction heater in operation to introduce additional heat into the deposit.
  • the active area of the conductor may describe a nearly closed loop (ie, an oval) in the substantial horizontal direction within the deposit.
  • the active area may be adjoined by an end area, possibly located above ground.
  • the above ground located portions of the beginning and end of the conductor can be electrically connected to a power source - a frequency generator - contacted. It is preferably provided that the line inductance of the conductor is compensated in sections by discrete or continuously executed series capacitances. It can be provided for the line with integrated compensation that the frequency of the frequency generator is tuned to the resonance frequency of the current loop.
  • the capacitance in the conductor can be formed by cylindrical capacitors between a tubular outer electrode of a first cable section and a tubular inner electrode of a second cable section, between which a dielectric is located. Likewise, the adjacent capacitor is formed between the following cable sections.
  • the dielectric of the capacitor is chosen so that it meets a high dielectric strength and high temperature resistance.
  • the entire electrode may already be surrounded by an insulation.
  • the insulation against the surrounding soil is advantageous in order to prevent resistive currents through the ground between the adjacent cable sections, in particular in the region of the capacitors.
  • the insulation furthermore prevents a resistive current flow between the forward and return conductors.
  • tubular electrodes can be connected in parallel.
  • the parallel connection of the capacitors can be used to increase the capacitance or to increase its dielectric strength.
  • a compensation of the longitudinal inductance can take place by means of predominantly concentrated transverse capacitances: Instead of introducing more or less short capacitors as concentrated elements in the line, and the capacitance - can be a two-wire line such.
  • B. provide a coaxial line or multi-wire cables anyway over their entire length - are used to compensate for the L jossinduktterrorismen.
  • the inner and outer conductors are alternately interrupted at equal intervals, thus forcing the flow of current through the distributed transverse capacitances.
  • the structural design of the conductor loop can be made as a cable design or as a solid conductor design. However, the design is irrelevant to the electrical operation described above.
  • a frequency generator for driving the electrical conductor is preferably designed as a high-frequency generator.
  • the frequency generator can be constructed in three phases and advantageously include a transformer coupling and power semiconductors as components.
  • the circuit may include a voltage impressing inverter.
  • Such a generator may require operation under resonant conditions for its intended use to achieve reactive power compensation. If necessary, the drive frequency is suitably adjusted during operation.
  • the following components can be present to control the conductor: Starting from the 3-phase AC mains voltage source z. B. 50Hz or 60 Hz, for example, a three-phase rectifier is controlled, which is followed by a DC link with capacitor, a three-phase inverter, which generates periodic square wave signals suitable frequency. Via a matching network from inductors and capacitors inductors are driven as output. A waiver of the matching network, however, is possible if the inductor is designed as an induction loop, which allows the adjustment of the required resonant frequency due to their inductance and the capacitive coating.
  • the described frequency generators can basically be used as voltage-impressing power converters or, accordingly, as current-impressing power converters.
  • the temperature in the heating zone 13 depends on the introduced electromagnetic power, which consists of the geological and physical (eg electrical conductivity) parameters of the deposit, as well as the technical parameters of the electrical arrangement, in particular consisting of conductor 7 and the high-frequency generator 11 , results.
  • This temperature can reach up to 300 ° C and is adjustable by changing the current through the inductor loop.
  • the regulation takes place via the frequency generator 11.
  • the electrical conductivity of the deposit can be determined by additionally injecting water or another fluid, e.g. As an electrolyte can be increased.
  • a typical temperature profile is in FIG. 3B shown.
  • the ordinate indicates the temperature T
  • the abscissa is the local position in the deposit
  • the dashed lines representing the nearest points to an inductor portion
  • the inductor portions of the forward and return conductors being spaced apart.
  • the temperature profiles shown correspond to the arrangement Fig. 3A , In the upper diagram, a control of the conductor 7 took place over a period of time, initially no removal of the heated fluids having taken place.
  • the temperature development initially occurs due to the induction of eddy currents in the electrically conductive layers of the reservoir block 12.
  • temperature gradients that is, places of higher temperature than the original reservoir temperature (the original reservoir temperature corresponds to the zero value of the ordinate axis in the diagram).
  • the places of higher temperature arise where eddy currents are induced.
  • the starting point of the heat is therefore not the induction loop or the electrical conductor, but it is the eddy currents induced by the electromagnetic field in the electrically conductive layer. Due to the temperature gradient that occurs over time, heat conduction also occurs depending on the thermal parameters such as thermal conductivity, which compensates for the temperature profile. With a greater distance from the conductor 7, the strength of the alternating field decreases, so that only a lower heating is possible there.
  • the lower diagram in Fig. 3B shows the temperature history at a time when the extraction of the oil has already started.
  • the temperature in the reservoir has been compensated by heat conduction.
  • the design of the electrical arrangement is therefore preferably chosen so that the penetration depth of the electromagnetic field typically corresponds to half the distance of the horizontally formed inductor conductor. This ensures that the electromagnetic field of a forward and return conductor of the conductor 7 is not compensated and on the On the other hand, the number of holes in relation to the thickness of the reservoir can be kept optimally low.
  • the electromagnetic field reaches electrically conductive layers further away from the inductor cable and induces eddy currents there.
  • the advantage is that it is a self-penetrating effect, which means that the absolutely introduced power into the reservoir can always be kept constant, eg. In the range of a few 100kW to several mega watts, e.g.
  • the arrangement for inductive heating of the deposit which in the Figures 2 and 3 is shown is only one possible variant.
  • Non-continuous means that the production well 14 is a kind of blind hole, which starts in contrast to the holes 6 of the track 4 but does not end in the track 3.
  • the production bore 14 can be equipped with a delivery pipe (not explicitly indicated in FIG Fig. 4 ).
  • the delivery pipe is intended to receive the fluent fluid including the oil and transported away.
  • the number of production wells 14 depends on the dimensions of the reservoir block 12.
  • Fig. 4 an installation of a second conductor 77 is indicated, which is laid in two further holes 6, wherein the distance between the next coming line sections of two adjacent conductors 7 and 77 should preferably be at least twice the distance of the penetration depth of the alternating field.
  • the oil flows due to reduced viscosity in the production wells 14 and in each case installed delivery pipe.
  • the flow of oil can be assisted by injecting fluids (water, water with additives, steam).
  • the flooding media can be simultaneously injected into the two through holes 6 defining the reservoir block 12. Injecting the fluids into the two through holes 6 may take place during the heating of the reservoir block 12 and / or after the termination of the energization of the conductor 7.
  • a packer 15 When injecting an output of the through holes 6 with a packer 15 is isolated as a blocking element (see. Figure 5 ). Injecting the fluids - in Fig. 5 indicated by arrows - after heating is particularly effective because the highly fluid made heavy oil can be displaced in this way easier. Also is in Fig. 5 indicated by further arrows the removal of the oil in the production pipe.
  • each reservoir block 12 (at low reservoir depth) may be connected to the surface 9 through a vertical bore 16. This is in Fig. 8 shown.
  • the bore 16 meets the heating zone 13 in the oil-bearing layer 5 and may be used for fluid flooding or oil production.
  • the one or more packers 15 may be installed on the higher-elevation side 4 as shown in the figures. Possibly. however, it may be advantageous to install the packer 15 or packers on the side of the lower-lying section 3.
  • Fig. 7 Between two continuous quasi-parallel holes 6, in which the induction loop of the conductor 7 is laid or laid to a previous period, at least one non-continuous injection hole 17 - provided for an injection pipe - drilled as a blind hole from one of the routes 3 or 4.
  • the pressing of the flood media into the injection bore 17 preferably begins after reduction of the oil viscosity in the reservoir block 12.
  • the returning or the feeding electrical line of the induction loop of the conductor 7 is preferably removed from a bore 6 and laid in the adjacent through hole 6 (dashed in FIG Fig. 4 indicated).
  • the liberated from the electrical line bore 6, however, can be used as a production well or injection well.
  • Fig. 8 becomes analogous to Fig. 2 a lateral section of a deposit shown schematically, wherein in the routes 3 and 4 and in the bore 6 of the conductor 7 is introduced. Furthermore, the conductor 7 is connected via the electrical leads 10 within the vertical bore 8 to the surface 9 of the frequency generator 11.
  • the vertical bore 16 is provided, which allows a fluid from the surface to the oil-bearing layer 5 to be transported and injected there.
  • a mine construction consisting of the routes 3 and 4 is built so that the route 4 in the ridges of the oil-bearing layer 5 - ie in the mountains above the oil-bearing layer 5 - and the second distance 3 in the sole rocks the oil-carrying layer 5 - ie below the oil-bearing layer 5 - are built (see. Fig. 9A ).
  • the routes 3 and 4 are preferably ascended above the oil-water contact at the same altitude and the oil deposit is developed by disc removal and opposite to the direction of fall (floating disturbance).
  • Fig. 9B is a plan view corresponding to the section BB in vertialer height of the distances 3 and 4 and the bore 6 is shown. It is made clear that an oil-bearing layer 5 as shown can also be curved or can take any shape.
  • Fig. 10 shows Fig. 10A analogous Fig. 2 a vertical section parallel to one of the holes. 6
  • Fig. 10B shows a matching vertical section.
  • Fig. 10C shows an alternative embodiment to 10B, which does not Fig. 10A matches.
  • the holes 19 and 20 are in a vertical surface (see Figs. 10A and 10B ) or in the area of the direction of incidence of the oil-carrying layer 5 (see Fig. 10C ) drilled.
  • a rope 21 of a Seilschrämauss 22 is laid and formed a column 23 in the oil-bearing layer 5 by sawing.
  • the distance between holes 19 and 20 is 1-10 meters.
  • Correspondingly wide is also the column 23, the continuous or not can be formed continuously between mine structures 3 and 4.
  • Fig. 10A begins the column 23 at distance 4 and ends, as far as the Seilschräm réelle 22 has penetrated so far.
  • the gap 23 thus becomes longer during operation of the cable cutting device 22.
  • the column 23 extends starting from route 4 in the direction of the route 3.
  • a Seilschräm réelle 22 is usually used mainly in coal mining and now according to this embodiment, for oil extraction. Bitumen and high-viscosity oil often accumulate in geological strata with strengths smaller than the strength of the coal, e.g. B. in little cemented sand.
  • the oil of the deposit acts like a lubricant in the oscillations of the rope 21 in the bores 19 and 20.
  • the friction forces of the rope 21 are substantially reduced and the energy of the Seilschräm réelles 22 is mainly used for cutting / sawing the oil-bearing layer 5.
  • the mines are at least in two funding horizons - ie different depth - moved up in adjacent rocks.
  • routes 3 and 4 are created as before.
  • the further sections 31 and 41 are arranged in a similar manner in the ground in a second level.
  • Between the pairs of tracks 3, 4 and 31, 41 in each funding horizon each cut 24 mainly and preferably in a horizontal plane, for example, at a distance 20-50 meters from each other.
  • the burrs 24, which are built in different winninghorizonten are also connected to through holes 6.
  • the burrs 24 - which also represent a distance - traverse the oil-bearing layer 5.
  • the burrs 24, which are built in a conveying horizon, are connected to each other by means of continuous transverse to the slits 25 bores.
  • a conductor loop is then installed in a first bore 25 in the first delivery horizon, in a second bore 25 in the second delivery horizon and in two holes 6. This is in Fig. 12 which represents a section along the plane CC, wherein the section CC is again performed in the inclined plane of the holes 6.
  • the holes 24 and 6 (see Fig. 12 ) introduced induction loop of the conductor 7 is operated again in operation for the heating of the deposit, in particular the oil-bearing layer 5.
  • Fig. 13 is only a distance 2 - ie a pit - provided in which again a section of the conductor 7 comes to rest.
  • the remaining sections of the conductor 7 are, however, all carried out in specially provided for the conductor 7 holes 66, wherein in contrast to the previous embodiments, a bore 67 is provided by the surface 9, which in addition to a substantially vertical portion after a bend 68 in a essentially horizontal extent of the bore 69 passes.
  • the hole 69 ends in the distance 2.
  • the conductor loop of the conductor 7 thus follows from the surface 9 of the holes 67, the curvature 68, the bore 69 and a crosspiece 70 in the distance 2, and again by another of the holes 69, a another bend 68 and another bore 67 to the surface 9.
  • a frequency generator not shown.
  • track 2 for the conductor loop allows a conductor loop to be laid which has a small radius of curvature in the transition between bore 66 and track 2 which is significantly less than a curvature made possible by a drill head.
  • the conductor loop kinks at this point.
  • the holes can be essentially limited to a respective curved point, whereby the drilling process can be easily performed.
  • Fig. 14 two conductor loops 100 and 101 are installed, each of which has a conductor section 70 in a section 2 as just described. These conductor portions 70 may be formed so as not to emit electromagnetic waves, so that the conductor loops 100 and 101 do not adversely affect each other.
  • a conductor loop 102 shown consisting of 4 holes from the surface, each with two holes meet from opposite sides in the distance 2.
  • Fig. 15 now shows the representation of Fig. 14 in a vertical section.
  • a connection is made from the surface 9 into the oil-bearing layer 5.
  • a bend of the shaft takes place in a substantially horizontal extension.
  • the now horizontally extending shaft now ends in the route 2, which is also located in the oil-bearing layer 5, wherein the route 2 can in turn be connected to a vertical shaft 1.
  • Fig. 16 now shows a slightly different view of the Fig. 14 in a vertical section, with two routes 2 are provided, one above the oil-bearing layer 5 and below the opening layer 5.
  • both sections 2 are vertically above one another and connected to a shaft 1 with each other.
  • the bore for the inclined shaft 80 is again made obliquely from the surface 9 into the oil-bearing layer 5. Now takes place after a curvature of a connection of the shaft to one of the routes 2 such that the shaft extends substantially straight and in a straight line with the routes 2 is connected.
  • a conductor loop is installed in this hole, it runs as far as possible in the desired area of the oil-bearing layer 5 and only in the edge region near the track or in the feed line from the surface outside this zone.
  • Fig. 16 a first implementation is disclosed in which the line 2 is arranged above the oil-carrying layer 5, and a second implementation in which the line 2 is arranged below the oil-carrying layer 5.
  • an obesity installation of the frequency generator which feeds the inductor loop with a high-frequency current is possible.
  • an underground installation is possible.
  • special requirements for explosion protection and / or cooling and / or weather protection should preferably be considered in underground installation of the frequency generator.
  • converters are cooled via existing water connections via water / water recoolers or in the air via water / air recoolers.
  • the forward and switching losses of the power semiconductors must be cooled so that they do not overheat.
  • Underground after appropriate heating of the deposit may be high ambient temperatures, high humidity and possibly a lack of fluid recooling medium, such as mine water prevail. Therefore, it is necessary to use a special embodiment which dissipates the explosion explosion proof and weatherproof.
  • a thermosiphon or a heat pipe can be used, which can work as an absolutely closed cooling system.
  • the working medium of the closed cooling circuit which can be based on evaporation for the removal of heat and re-condensation, requires a cold end in which the cooling medium is re-condensed.
  • an electrically operated heat pump can be used.
  • a working medium in the cooling circuit media come into question, which evaporate at atmospheric pressure between 60 ° C and 120 ° C, eg water.
  • a designated terminal box - a terminal box - for the connection of the forward and return conductors explosion proof and sealed run by the inverter, so that no explosive pit gases can penetrate, due to the non-excludable partial discharges due to the existing electrical voltages of up to several kiloVolt (kV) would ignite.
  • kV kiloVolt
  • the presented arrangements and methods are particularly advantageous for a bitum deposit z.
  • oil viscosity 100,000cP It could be stored at a depth of 150-200 meters below the surface.
  • the deposit may be formed by an oil-bearing layer with a thickness of 20 - 30 meters and an angle of incidence of 25 - 30 °.
  • the oil can, under the given conditions in the layer at a temperature of 8 ° C, be immobile or slightly mobile for high viscosity.
  • the oil-bearing layer can be made up largely of sand with a low degree of cementation.
  • the Surface may be partially built up over the deposit contour.
  • two vertical manholes can be drilled at the boundary of the reservoir contour.
  • a hole from the surface is not needed.
  • the filling systems as well as the transport and weathering sections can be built in the secondary rocks of the oil-bearing layer.
  • two lines can be run parallel to each other with a distance of 200 meters directly in the oil-bearing layer. Between these pit structures continuous parallel holes can be drilled at a distance of 20-30 meters.
  • the holes are provided with piping, in particular made of plastic and laid therein at least in two adjacent holes, the electrical lines that form the induction loop.
  • At least one impact-resistant frequency generator can be installed. After heating the reservoir section, the previously used induction loop can be removed and the petroleum can be pumped with reduced viscosity.
  • the invention is particularly advantageous if shafts and / or sections are already present and now liquefiable but highly viscous oil stocks are to be extracted.
  • the inclusion of the existing shafts and / or tracks allows to install a conductor loop with a simple drilling technique and a simpler Borhwerkmaschine, since for the most part only just drilled or limited to a single curvature per hole.
  • the invention is particularly advantageous for conveying heavy oil.
  • the invention is particularly advantageous for conveying oil bound in sand layers, wherein the sand layers of rock and rock can be at least partially limited.
  • the sand layers may be solid due to cementation.
EP12195930.8A 2012-12-06 2012-12-06 Agencement et procédé d'apport de chaleur dans une formation géologique au moyen d'une induction électromagnétique Ceased EP2740894A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP12195930.8A EP2740894A1 (fr) 2012-12-06 2012-12-06 Agencement et procédé d'apport de chaleur dans une formation géologique au moyen d'une induction électromagnétique
EP13799240.0A EP2920417A1 (fr) 2012-12-06 2013-11-22 Système et procédé permettant de faire entrer de la chaleur dans une formation géologique par induction électromagnétique
BR112015013195A BR112015013195A2 (pt) 2012-12-06 2013-11-22 Disposição e método para introduzir calor em uma formação geológica por meio de indução eletromagnética
PCT/EP2013/074457 WO2014086594A1 (fr) 2012-12-06 2013-11-22 Système et procédé permettant de faire entrer de la chaleur dans une formation géologique par induction électromagnétique
RU2015126797A RU2015126797A (ru) 2012-12-06 2013-11-22 Система и способ введения тепла в геологическую формацию при помощи электромагнитной индукции
US14/650,302 US10087715B2 (en) 2012-12-06 2013-11-22 Arrangement and method for introducing heat into a geological formation by means of electromagnetic induction
CA2893876A CA2893876A1 (fr) 2012-12-06 2013-11-22 Systeme et procede permettant de faire entrer de la chaleur dans une formation geologique par induction electromagnetique

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Application Number Priority Date Filing Date Title
EP12195930.8A EP2740894A1 (fr) 2012-12-06 2012-12-06 Agencement et procédé d'apport de chaleur dans une formation géologique au moyen d'une induction électromagnétique

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458945A (en) * 1981-10-01 1984-07-10 Ayler Maynard F Oil recovery mining method and apparatus
US5339898A (en) * 1993-07-13 1994-08-23 Texaco Canada Petroleum, Inc. Electromagnetic reservoir heating with vertical well supply and horizontal well return electrodes
DE102004009896A1 (de) 2004-02-26 2005-09-15 Paul Vahle Gmbh & Co. Kg Induktive Energie- und Datenübertragung mit Parallelleiteranordnung
RU2268356C1 (ru) 2004-04-22 2006-01-20 ООО "ЛУКОЙЛ-Коми" Способ теплового воздействия на залежь высоковязкой нефти
US20060151166A1 (en) * 2005-01-10 2006-07-13 Montgomery Carl T Selective electromagnetic production tool
DE102007008292A1 (de) * 2007-02-16 2008-08-21 Siemens Ag Vorrichtung und Verfahren zur In-Situ-Gewinnung einer kohlenwasserstoffhaltigen Substanz unter Herabsetzung deren Viskosität aus einer unterirdischen Lagerstätte
DE102007040605B3 (de) * 2007-08-27 2008-10-30 Siemens Ag Vorrichtung zur "in situ"-Förderung von Bitumen oder Schwerstöl
WO2009027305A2 (fr) 2007-08-27 2009-03-05 Siemens Aktiengesellschaft Dispositif d'extraction in situ de bitume et d'huile très lourde
DE102008056257A1 (de) * 2008-11-06 2010-05-20 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Beheizung einer Rohrleitung
US20120125607A1 (en) * 2010-11-19 2012-05-24 Harris Corporation Parallel fed well antenna array for increased heavy oil recovery

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458945A (en) * 1981-10-01 1984-07-10 Ayler Maynard F Oil recovery mining method and apparatus
US5339898A (en) * 1993-07-13 1994-08-23 Texaco Canada Petroleum, Inc. Electromagnetic reservoir heating with vertical well supply and horizontal well return electrodes
DE102004009896A1 (de) 2004-02-26 2005-09-15 Paul Vahle Gmbh & Co. Kg Induktive Energie- und Datenübertragung mit Parallelleiteranordnung
RU2268356C1 (ru) 2004-04-22 2006-01-20 ООО "ЛУКОЙЛ-Коми" Способ теплового воздействия на залежь высоковязкой нефти
US20060151166A1 (en) * 2005-01-10 2006-07-13 Montgomery Carl T Selective electromagnetic production tool
DE102007008292A1 (de) * 2007-02-16 2008-08-21 Siemens Ag Vorrichtung und Verfahren zur In-Situ-Gewinnung einer kohlenwasserstoffhaltigen Substanz unter Herabsetzung deren Viskosität aus einer unterirdischen Lagerstätte
DE102007040605B3 (de) * 2007-08-27 2008-10-30 Siemens Ag Vorrichtung zur "in situ"-Förderung von Bitumen oder Schwerstöl
WO2009027305A2 (fr) 2007-08-27 2009-03-05 Siemens Aktiengesellschaft Dispositif d'extraction in situ de bitume et d'huile très lourde
DE102008022176A1 (de) * 2007-08-27 2009-11-12 Siemens Aktiengesellschaft Vorrichtung zur "in situ"-Förderung von Bitumen oder Schwerstöl
DE102008056257A1 (de) * 2008-11-06 2010-05-20 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Beheizung einer Rohrleitung
US20120125607A1 (en) * 2010-11-19 2012-05-24 Harris Corporation Parallel fed well antenna array for increased heavy oil recovery

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