WO2017025468A1 - Câble, inducteur et procédé pour réaliser un inducteur pour chauffer une formation géologique - Google Patents

Câble, inducteur et procédé pour réaliser un inducteur pour chauffer une formation géologique Download PDF

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Publication number
WO2017025468A1
WO2017025468A1 PCT/EP2016/068765 EP2016068765W WO2017025468A1 WO 2017025468 A1 WO2017025468 A1 WO 2017025468A1 EP 2016068765 W EP2016068765 W EP 2016068765W WO 2017025468 A1 WO2017025468 A1 WO 2017025468A1
Authority
WO
WIPO (PCT)
Prior art keywords
bundle
inductor
cable
wires
geological formation
Prior art date
Application number
PCT/EP2016/068765
Other languages
German (de)
English (en)
Inventor
Stefan Blendinger
Christoph KANDZIORA
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft, Wintershall Holding GmbH filed Critical Siemens Aktiengesellschaft
Publication of WO2017025468A1 publication Critical patent/WO2017025468A1/fr

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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
    • 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
    • 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 hydrocarbon may be a gas, a conventional oil, a heavy oil, an extra heavy oil, an oil sands and / or bitumen.
  • the heavy oil has a dynamic viscosity between 10 and 100 cP and an API grade between 18 and 25. This corresponds to 1000 cP
  • the API -degree (American Petroleum Institute Grade) describes the relative density of the oil bezo ⁇ gen on water.
  • the extra heavy oil has a dynamic viscosity up to 10,000 cP and an API grade below 20.
  • Oil sands and bitumen have a dynamic viscosity greater than 10,000 cps and an API grade in a range between 7 and 9.
  • Conventional oil in this case has an API gravity Zvi ⁇ rule 25 and about 56th It should be noted that the API grade is measured above ground when the associated gas is removed. The stated viscosity applies to the oil in the deposit. Therefore, the viscosity of the conventional oil and the heavy oil may overlap.
  • One method used to increase the temperature of the deposit is to heat the deposit, which can be done electrically.
  • the electrical heating can be done in particular by radio waves or electromagnetic fields.
  • inductive heating by means of an inductor heat energy is introduced into the deposit (or in the soil) ⁇ .
  • electrically conductive gen deposits also called reservoir
  • electromagnetic fields that forms eddy currents wel ⁇ che heat the deposit, so that there is thus an improvement in the flowability of the forward lying in the reservoir hydrocarbons.
  • eddy currents are induced in particular in the pore water of the deposit, which has an electrical conductivity due to salts dissolved therein.
  • the heat transfer from the water to the hydrocarbon takes place in particular by heat conduction.
  • the heating device can be used also take a SAGD encryption, wherein the vapor by means of a tube or Dampfinj ector in the hydrocarbon reservoir, a ⁇ is brought.
  • the SAGD process can be used to extract heavy oil and / or bitumen.
  • the Kohlenwasserstoffla ⁇ ger Wu or reservoir is additionally heated by the steam.
  • the heater can also be used alone in a hydrocarbon reservoir without introducing steam into the reservoir.
  • the heater includes a conductor means which is designed in particular as a conductor loop ⁇ .
  • the conductor means can play, have a length of several 100 meters at ⁇ .
  • an alternating current can be impressed by means of an alternator.
  • the heaters continuous operation is aimed at 10 to 20 years without being able to perform at the heating device and in particular to the circuit device maintenance as these are deeply brought a ⁇ into the deposit and therefore not accessible. This results particularly high demands on the reliability of Lei ⁇ ter learned. This concerns the electrical iso ⁇ lation to the earth and on the other, the capacitors for reactive power compensation.
  • the induced power places great demands on the cable used, the inductor and its electrical properties.
  • the parasitic inductive clamping ⁇ voltage drop is to rule over the cable length.
  • the production of such cables is complicated and expensive.
  • An object of the invention is a cable, which serves as In ⁇ ductor, form such that it meets the requirements and is easy to manufacture.
  • a solution of the problem succeeds on the basis of a Basis ⁇ bels according to claim 1 or in an inductor according to claim 9.
  • An inductor can be produced according to claim 15. Embodiments of the solution of the problem emerge according to claims 2 to 8, 10 to 14 and 16.
  • the inductor In order to reduce the inductive voltage drop in the various conductors or wires of a cable, the inductor has sections in which, in particular, two groups of wires are coupled. Each of the groups is interrupted several times (in particular regularly). The groups of cores thus form capacities which make it possible to transport electrical energy via the cable. The intervals of the interruptions determine with the voltage drop. By changing the distances, the voltage drop can be adjusted.
  • a base cable or an inductor these can be formed as a multifilament conductor.
  • special may be a wire, a wire or a conductor as
  • the base cable or the inductor can also have a braided and / or stranded structure along the longitudinal extent.
  • each of the conductors usually has a plurality of individual conductors or cores, which are arranged one behind the other along the axial direction of the conductor.
  • Such a conductor device is also referred to as Multifilamentinduktor.
  • a single ⁇ capacity results from a cable section of defined length, which is limited by interruptions.
  • a basic cable is used.
  • This base cable is used for the production of the inductor, ie for the production of the inductor cable.
  • the base cable for an inductor for heating a geological formation has a plurality of bundles of wires.
  • the geological formation relates in particular to a La ⁇ gerooth a hydrocarbonaceous substance, in ⁇ example, a ⁇ lsand-, oil shale or Schweröllagerst2011- te.
  • the inductor is used for electromagnetic induction, by means of which the extraction of the hydrocarbonaceous substance from the geological formation can be promoted.
  • the basic cable has a first bundle of wires and a second bundle of wires, said first bundle having at a first position cores with a first connecting portion and having the second bundle at a second posi tion ⁇ cores with a second connecting portion.
  • the cable In the region of the respective connecting section, the cable can be severed.
  • connection section is electrically conductive. Cores with severed connection sections are electrically connected again. Veins that have no connection section will not be contacted again.
  • base cable of the kaub ⁇ section is electrically insulated. Cut wires without the electrically insulating connection section are electrically connected again. Wires having an electrically insulating connection section will not be reconnected.
  • An electrical connection of wires or electrically conductive connecting sections can be effected for example by means of pressing and / or crimping and / or soldering and / or welding and / or gluing.
  • the first position is at least 10 meters away from the second position. The distance depends, for example, on the capacity to be achieved.
  • connection ⁇ section on a circumferential enlargement In one embodiment of the basic cable, the connection ⁇ section on a circumferential enlargement.
  • the circumference of the wire is therefore greater in the area of the contacting with electrically conductive connecting sections after a separation.
  • Connecting portion thus has, for example, a portion of the wire, which does not have a round cross-section.
  • the connecting section thus has, for example, a wire cut, which has a rectangular cross-section.
  • the electrically conductive connection section has, for example, metal platelets which are severable and, in particular, can be easily connected to a plug-and-socket system.
  • the connecting section has, for example, a metal plate which is severable and can also be connected to one another, for example, by means of overlapping and soldering. If the connecting sections of a base cable are electrically insulating, then only the severed wires (electrically conductive) need to be electrically connected again. The separate electrically non-conductive connection sections can remain open, so do not need to be reconnected.
  • the first bundle of wires with connecting section is severed and also the second bundle of wires in the same position, where the wires of the second bundle have no connecting section there.
  • the wires are connected to each other again, which have an electrically conductive connection portion.
  • the first bundle is bundled with the second bundle in a strand.
  • the first bundle and the second bundle can thus be in a strand ge ⁇ leads, besides the first bundle may be separated from the second bundle or wires of the first bundle and the second bundle are thoroughly mixed within the strand.
  • this has a plurality of strands.
  • the inductor is a conductor.
  • the conductor is in particular cable-like made of a plurality of electrically insulated individual wires. It can be obtained with repeated attachment of interruption points on the inductor, an electrical series resonant circuit, the interpretation, for example, is such that a resonance ⁇ frequency in the range of about 10 kHz to 200 kHz is obtained, which also represents the operating frequency of the inductor.
  • the inductor is driven, for example, via a generator which is operated at least with the aforementioned frequency range.
  • the interruption point is used to act capacitively to form ⁇ de conductor sections (in terms of capacitors). This is done by the capacitive coupling of adjacent conductor groups over a defined length of conductor - ⁇ example, 10 to 50m - for reactive power compensation.
  • the capacitors are arranged in particular as a series circuit.
  • An inductor for heating a geological formation in particular a deposit of a hydrocarbonaceous substance, for example an oil sand, oil shale or
  • Heavy oil deposit by means of electromagnetic induction, in particular for recovering the hydrocarbonaceous substance from the geological formation, has a first bundle of veins and a second bundle of veins. This results in a kind of filament structure.
  • the first bundle and the second bundle of cores have an electrical contact at different positions (eg at a distance of more than 10 meters). The positions are for example distributed equally over the inductor. Different positions may be required if different capacitance values are required across the cable.
  • the base cable can be used to make the inductor (ie the inductor cable).
  • the basic cable is disconnected at the points with the connecting sections. Either the wires with the electrically conductive connection sections are again electrically connected to one another or the wires are again electrically connected without an electrically insulating connection section. Separate wires without an electrically conductive connection section are not reconnected at this point.
  • the base cable thus has at least two bundles, which have connecting sections at different locations.
  • the connecting sections can also be different, ie, for example, electrically conductive or electrically insulating.
  • the electrical contacting is effected, for example, by a plug connection and / or a crimped connection and / or a clamping connection.
  • each individual wire or wire is individually insulated.
  • Wire or each wire has e.g. in repetitive intervals connecting sections.
  • the latter has a large number of disconnection points, a cable being separated by means of the disconnection points, which has electrical contacts in the region of the disconnection points in order to have electrically contacted a part of separate wires there again.
  • a manufacturing method for an inductor for heating a geological formation in particular a deposit of a hydrocarbonaceous substance, ⁇ example, an oil sands, oil shale or heavy oil deposit
  • a cable with connecting sections is used for the production of the inductor and separated there at the connection sections, where separate wires are partially reconnected there.
  • the different separation and contacting of wires results in bundles of wires. A first bundle is separated at certain positions where the second bundle is contacted and vice versa.
  • the entire inductor can be manufactured on a cable winding machine without restrictions on the desired length.
  • the insulation is removed at certain positions and, if necessary, a twist of cores and / or strands is reversed.
  • the entire base cable or even a part or a strand (in particular with a plurality of bundles) is then severed. There, for example, contact modules or plugs are inserted between the ends of the individual wires. Subsequently, the twist of the individual wires can be restored. After recovery of the insulation, the inductor is restored at the point of separation.
  • the base cable is severed at a plurality of connecting portions, and a first bundle of wires is electrically connected at a first position and a second bundle is electrically connected at a second position.
  • the second bundle at the first position is electrically separated and the first bundle at the second position elekt ⁇ for separately.
  • FIG. 1 The invention is explained in more detail below with reference to embodiments and "ter reference to the accompanying drawings: FIG.
  • the cable inductor can be constructed from a plurality of conductor bundles.
  • 1 shows an inductor 1
  • the GR ilias includes two multi-filament as a first beam 21 and a second bundle 22 wherein the multifilament ⁇ conductors 21, 22 are each formed of a plurality of conductors.
  • Each conductor 2 of the multifilament 21, 22 thus has interruption points 4, wherein the non-set ones shown, end portions 6 of the conductor 2 to the interrupt provide ⁇ are formed. 4
  • the interruption points 4 are thus present at different positions 4 via the inductor 1.
  • the multifilament ladder 21, 22 of a plurality of conductors 2 together.
  • the conductors 2 of the multifilament conductors 21, 22 are substantially parallel to each other.
  • each conductor 2 has a plurality of interruption points 4, wherein the interruption points 4 of each conductor 2 have a constant distance from each other.
  • the illustration according to FIG. 2 shows a base cable 10.
  • This base cable 10 has connecting sections 11.
  • the conductors of a bundle can also be wires.
  • the first bundle 21 has wires 24 without connection section 11 at the point of interruption 4.
  • the second bundle 22 has at dersel ⁇ ben interruption point 4 wires 23 with a dacasab ⁇ section 11.
  • the basic cable can be manufactured with integrated Verbin ⁇ dung portions 11 for interruption of a respective beam.
  • the connecting portions 11 which are, for example, electrically insulating, alternately elec tric ⁇ interrupted.
  • the connecting sections 11 are located at predefined positions, ie in the region of the interruption points to be produced.
  • the basic cable must first be cut to ensure the Un ⁇ interruption. After transection, one of the bundles is electrically reconnected.
  • FIG. 3 shows an open interruption point 4.
  • the basic cable 10 is therefore cut through.
  • the bundle 22 remains separated at this position 4.
  • the bundle 21, wel ⁇ electrically non should remain separated ches at this point is, for example, connected to a plug, in the 3 is not shown.
  • the counterpart of the base cable at this point of interruption may be connected to the corresponding ends of the bundle to a socket. Plug and socket allow an electrical connection of one of the bundles.
  • the connecting portions 11 can be kept small. They should only be so large that a secure severing of all connecting sections 11 in an interruption section is possible.
  • the length of the connecting sections also depends on the manufacturing tolerances of the base cable 10.
  • FIGS. 2 or 3 can be understood not only as a basic cable 10 but also as a strand 25, 26, 27 a base cable 10 according to FIG. 4.
  • the representation according to FIG 4 shows a cross section of the base ⁇ cable 10 and an inductor produced therefrom.
  • the Verbin ⁇ extension portions 11 serve in particular the interruption of wires of a bundle.
  • the base cable has a plurality of strands 25, 26 and 27.

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  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Induction Heating (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

La présente invention concerne un câble de base et un inducteur (1) réalisé à partir du câble de base, pour chauffer une formation géologique, notamment un gisement d'une substance carbonée, par exemple un gisement de sable bitumineux, de schiste bitumineux ou d'huile lourde, par induction électromagnétique, notamment pour extraire la substance carbonée de la formation géologique. L'inducteur (1) présente un premier faisceau (21, 22) de fils (23, 24) et un second faisceau (22) de fils (23, 24), le premier faisceau (21) présentant en un premier emplacement (4') un contact électrique entre les fils (23, 24), et le second faisceau (21, 22) présentant en un second emplacement (4'') un contact électrique entre les fils (23, 24).
PCT/EP2016/068765 2015-08-13 2016-08-05 Câble, inducteur et procédé pour réaliser un inducteur pour chauffer une formation géologique WO2017025468A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015215448.3 2015-08-13
DE102015215448.3A DE102015215448A1 (de) 2015-08-13 2015-08-13 Kabel, Induktor und Verfahren zur Herstellung eines Induktors zur Heizung einer geologischen Formation

Publications (1)

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WO2017025468A1 true WO2017025468A1 (fr) 2017-02-16

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PCT/EP2016/068765 WO2017025468A1 (fr) 2015-08-13 2016-08-05 Câble, inducteur et procédé pour réaliser un inducteur pour chauffer une formation géologique

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Country Link
AR (1) AR106714A1 (fr)
DE (1) DE102015215448A1 (fr)
WO (1) WO2017025468A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009109489A1 (fr) * 2008-03-06 2009-09-11 Siemens Aktiengesellschaft Agencement de chauffage inductif des gisements de sable pétrolifère et de pétrole ultra lourd à l'aide de conducteurs électriques
DE102008044953A1 (de) * 2008-08-29 2010-03-04 Siemens Aktiengesellschaft Anlage zur In-Situ-Gewinnung einer kohlenstoffhaltigen Substanz
WO2013060610A1 (fr) * 2011-10-27 2013-05-02 Siemens Aktiengesellschaft Dispositif à condensateur pour une boucle de conducteurs d'un dispositif pour le transport « in situ » d'huile lourde et de bitume depuis des gisements de sables bitumineux
WO2013079201A1 (fr) * 2011-12-02 2013-06-06 Leoni Kabel Holding Gmbh Procédé de fabrication de l'âme d'un câble, comprenant un conducteur entouré par un joint isolant, destiné à un câble, en particulier à un câble à induction, âme de câble et câble
EP2947261A1 (fr) * 2014-05-21 2015-11-25 Siemens Aktiengesellschaft Inducteur et procédé de chauffage d'une formation géologique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009109489A1 (fr) * 2008-03-06 2009-09-11 Siemens Aktiengesellschaft Agencement de chauffage inductif des gisements de sable pétrolifère et de pétrole ultra lourd à l'aide de conducteurs électriques
DE102008044953A1 (de) * 2008-08-29 2010-03-04 Siemens Aktiengesellschaft Anlage zur In-Situ-Gewinnung einer kohlenstoffhaltigen Substanz
WO2013060610A1 (fr) * 2011-10-27 2013-05-02 Siemens Aktiengesellschaft Dispositif à condensateur pour une boucle de conducteurs d'un dispositif pour le transport « in situ » d'huile lourde et de bitume depuis des gisements de sables bitumineux
WO2013079201A1 (fr) * 2011-12-02 2013-06-06 Leoni Kabel Holding Gmbh Procédé de fabrication de l'âme d'un câble, comprenant un conducteur entouré par un joint isolant, destiné à un câble, en particulier à un câble à induction, âme de câble et câble
EP2947261A1 (fr) * 2014-05-21 2015-11-25 Siemens Aktiengesellschaft Inducteur et procédé de chauffage d'une formation géologique

Also Published As

Publication number Publication date
DE102015215448A1 (de) 2017-02-16
AR106714A1 (es) 2018-02-14

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