METHOD AND DEVICE FOR "IN-SITU" CONVEYING OF BITUMEN OR VERY HEAVY OIL
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Abstract
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.
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Citations
41 Claims
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1-21. -21. (canceled)
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22. A method for “
- in-situ”
conveying of bitumen or very heavy oil from oil sand deposits as reservoirs by applying thermal energy to the reservoir in order to reduce the viscosity of the bitumen or very heavy oil, the method comprising;heating and liquefying the bitumen or very heavy oil by means of a inductive conductor loop, to such a degree that it is in a condition to be led away using an extraction pipe; compensating the inductivity of the inductive conductor loop section by section; and arranging the inductive conductor loop and the extraction pipe relative to one another such that an extraction rate is maximized. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
- in-situ”
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30. A device for use in a reservoir or deposit for bitumen and/or very heavy oil to convey bitumen or very heavy oil from oil sand deposits or reservoir, comprising:
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at least two linearly extended conductors, wherein the at least two linearly extended conductors are routed in parallel in a horizontal alignment at a predetermined depth of the reservoir, wherein a plurality of ends of the conductors are electrically conductively connected inside or outside of the reservoir and together form a conductor loop which realizes a predetermined complex resistance and are connected outside of the reservoir to an external alternating current generator for electrical power, and wherein an inductivity of the conductor loop is compensated section by section and with one of the conductors of the conductor loop arranged essentially at a right angle above an extraction pipe.
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- 31. The device as claimed in claim 31, wherein a lateral deviation of the conductor loop from a perpendicular arrangement above the extraction pipe is smaller than a distance from the extraction pipe.
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32. The device as claimed in claim 32, wherein a lateral deviation of the conductor loop from the perpendicular arrangement above the extraction pipe is less than 10 m.
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33. The device as claimed in claim 33, wherein the lateral deviation of the conductor loop from the perpendicular arrangement above the extraction pipe is less than 5 m.
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40. The device as claimed in claim 40, wherein the three inductive sub-conductors are fed on an input side by a rotating current generator and are connected on an output side in a star point.
Specification