Siemens Aktiengesellschaft

Siemens Aktiengesell Schaft

Friedrich-alexander-universitat Erlangen-nürnberg

Siemens Aktiengesellscaft

Wintershall Holding Gmbh

Dirk Diehl

Norbert Huber

Wolfgang Renz

Bernd Wacker

Juergen Nistler

Rene Gumbrecht

Andreas Koch

Markus Vester

Hans-Peter Krämer

Muris Torlak

Sebastian Wolf

Ralph Oppelt

Jürgen Nistler

Matthias Gebhardt

Johannes Reinschke

Volker Matschl

Vladimir Danov

Sebastian Martius

Gerhard Brinker

Heinz Schmidt

Volker Schnetter

Lorenz-Peter Schmidt

Jan Weigel

Markus Klöpzig

Ulrich Weinert

Andreas Schröter

Stefan Blendinger

Markus Wilke

Michael Koolman

Aristide Spagnolo

Hans-Peter Kraemer

Eva Schneider

Ulrich Von Knobloch

Bjarne Noer

Lars Ole Andersen

Various embodiments include stator for an electrical machine comprising: a stator winding; and a yoke with a plurality of slots. There are a plurality of conductor segments connected to one another, wherein each conductor segment has one respective axially internal inner section and two respective axially external outer sections. The respective inner section of each conductor segment is embedded into a respective slot. Ducts for coolant flow in the axial direction are formed at least in a portion of each of the slots. The stator defines, at least in a first axial end region, a first coolant chamber fluidically encapsulated from a surrounding area. The first coolant chamber surrounds at least a portion of the respective outer sections of each of the conductor segments situated in the first axial end region. The first coolant chamber is fluidically connected to the ducts to conduct coolant into and/or out of the ducts.

Stator having winding cooling for an electrical machine

An induction device and method for introducing an inductor loop into a rock formation to heating an oil reservoir in the rock formation to extract oil extraction, wherein a first inductor bore is chilled for introducing a first inductor arm, a second inductor bore is drilled for introducing a second inductor arm, at least one intersecting bore is drilled to create a first area of intersection with the first inductor bore and a second area of intersection with the second inductor bore, the first inductor arm is introduced into the first inductor bore and the second inductor arm is introduced into the second inductor bore, and at least one connecting arm is introduced into the intersecting bore for electrically conductive connection to the two inductor arms in the two areas of intersection so as to form the inductor loop.

Method for introducing an inductor loop into a rock formation

An inductor is provided for induction heating of deposits of oil sand, oil shale, or extra-heavy oil using current-carrying conductors, in which a partial discharge at interruptions in the conductors is avoided.

Inductor for induction heating

An apparatus for the inductive heating of oil sand and heavy oil deposits by way of current-carrying conductors is provided. The conductors include individual conductor groups, wherein the conductor groups are designed in periodically repeating sections of defined length defining a resonance length, and wherein two or more of the conductor groups are capacitively coupled. In this way, each conductor can be insulated and can include a single wire.

Apparatus for the inductive heating of oil sand and heavy oil deposits by way of current-carrying conductors

The invention relates to a plug element (), in particular for producing capacitors (C), which comprises three sections () in the direction of its longitudinal extent, wherein a first section () has a tapered shape at one end of the plug element (), said tapered shape complementing a shape of a third section () at that end of the plug element () which is averted from the first section (), and wherein a second section () is arranged between the first and the third section (), said second section connecting the first and the third section () to one another. The invention also relates to a plug system () comprising plug elements () by means of which (cylindrical) capacitors (C) can be created, wherein electrically conductive layers (L, D, L, U) of the capacitor (C) which is formed from the plug system () simultaneously form a conduction structure of an inductor.

Inductor for heating ultraheavy oil and oil sand deposits

An apparatus is provided for delivering a substance containing hydrocarbons from a reservoir. The reservoir can be subjected to thermal energy in order to reduce the viscosity of the substance. The apparatus includes at least one conductor loop for inductively applying current as an electric/electromagnetic heater. A conductor of the conductor loop is surrounded in at least one section by a liquid-carrying conduit. The liquid-carrying conduit is perforated such that when a liquid is supplied the liquid penetrates into the reservoir from the liquid-carrying conduit via a perforation.

Device and method for obtaining, especially in situ, a carbonaceous substance from an underground deposit

The embodiments relate to a capacitor device for a conductor loop in a device for the in-situ production of heavy oil and bitumen from oil-sand deposits, characterized by a housing and a capacitor unit arranged therein to compensate for the inductive voltage drop along the conductor loop, wherein there are two connection interfaces, wherein each connection interface is designed for mechanical and electrically conductive connection between the capacitor unit and a conductor element of the conductor loop.

Capacitor device for a conductor loop in a device for the in-sity production of heavy oil and bitumen from oil-sand deposits

A device is provided for extracting a hydrocarbon-containing substance from a reservoir. Thermal energy can be applied to the reservoir in order to reduce the viscosity of the substance. The device includes at least one conductor loop for inductively supplying electric current, to provide electric and/or electromagnetic heating, and a fluid conducting device for transporting and introducing a solvent fluid into the reservoir, to further reduce the viscosity of the substance.

Device and method for the recovery, in particular in-situ recovery, of a carbonaceous substance from subterranean formations

A method determines an optimal structure of a high-frequency shield of a high-frequency antenna of a magnetic resonance arrangement. The high-frequency shield shields the high-frequency antenna from a gradient-coil arrangement. A three-dimensional initial structure of the high-frequency shield is defined in accordance with structural parameters and jointly with the high-frequency antenna, the gradient-coil arrangement, or both the high-frequency antenna and the gradient-coil arrangement. The structural parameters are optimized via an optimization method with respect to at least one optimization criterion.

Method for determining an optimal structure of a high-frequency shield of a high-frequency antenna of a magnetic resonance arrangement

A technique is provided for extracting a substance containing hydrocarbon from a reservoir, wherein the reservoir is applied with thermal energy in order to reduce the viscosity of the substance. As per the technique, at least two conductor loops for the inductive energization are provided as electric/electromagnetic heating elements. Each of the at least two conductor loops has at least two extended conductors, which are guided horizontally inside the reservoir. At least two alternating current generators are provided for electric power, each being connected to a respective conductor loop. The technique involves operating a first of the at least two alternating current generators and at least a second of the at least two alternating current generators synchronously with respect to their frequency and with a fixed phase position in relation to one another.

Method and device for the 'in-situ' transport of bitumen or extra-heavy oil

An installation for the in-situ extraction of a substance including hydrocarbons from an underground deposit is provided. The conductor and return conductor of the inductor lines are guided essentially vertically in the capping to the bottom of the deposit, at a small maximum lateral distance of 10 m compared to the length of the lines, but especially less than 5 m. Preferably, the inductor lines are guided horizontally in the deposit and are at different distances in certain areas. Furthermore, the electrical conductors and return conductors perpendicularly extending in the capping preferably combine to form a conductor pair. In this way, the conductor pair can be introduced into a single borehole which reaches into the reservoir and splits only once it has arrived in the reservoir.

Installation for the in situ extraction of a substance containing carbon

A method for the 'in situ' extraction of bitumen or very heavy oil is provided. An electric/electromagnetic heater to reduce the viscosity of bitumen or very heavy oil with at least two linearly expanded conductors are configured in a horizontal alignment at a predetermined depth of the reservoir. The conductors are connected to each other in an electrically conducting manner inside or outside of the reservoir, and together form a conductor loop, and are connected to an external alternating current generator outside of the reservoir for electric power. The heating of the reservoir is predetermined in a chronologically and/or locally variable manner in accordance with the electric parameters, and may be changed outside of the reservoir for optimizing the feed volume during the conveying of the bitumen. At least one generator is present in the related device, wherein the parameters thereof are variable for the electric power.

Method and device for the 'in-situ' conveying of bitumen or very heavy oil

An apparatus for the inductive heating of oil sand and heavy oil deposits by way of current-carrying conductors is provided. The conductors include individual conductor groups, wherein the conductor groups are designed in periodically repeating sections of defined length defining a resonance length, and wherein two or more of the conductor groups are capacitively coupled. In this way, each conductor can be advantageously insulated and may include a single wire.

A method is for conveying bitumen or heavy oil in a deposit is provided. The bitumen or very heavy oil is liquefied by way of an inductive conductor loop as a heater and is led away using an extraction pipe, wherein the conductor loop and the extraction pipe are disposed relative to one another such that the heating and thus extraction of bitumen or very heavy oil is maximized. To this end, one of the conductors of the conductor loop is disposed substantially vertically above the extraction pipe.

Method and device for in-situ conveying of bitumen or very heavy oil

In a method and a device for specific absorption rate monitoring in a magnetic resonance system wherein multiple transmit coils are independently charged with respective currents, a primary model point voxel and at least one auxiliary model point voxel are automatically selected from among multiple voxels that model a modeled examination subject. The primary model point voxel is that voxel in which an absolute maximum of a total field variable occurs that is produced by the respective electrical fields emitted by the transmit coils. The at least one auxiliary model point voxel is that voxel in which a relative maximum of the variable occurs. The primary model point voxel and the at least one auxiliary model point voxel are stored, and specific absorption rate monitoring of an actual examination subject in the magnetic resonance system is implemented during the acquisition of magnetic resonance data in respective voxels of the actual examination subject corresponding to the stored primary model point voxel and the stored at least one auxiliary model point voxel.

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Erlangen, Germany

Dirk Diehl