Methods for heating with slots in hydrocarbon formations
First Claim
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1. A method of treating a hydrocarbon containing formation, comprising:
- forming at least one wellbore in a hydrocarbon containing formation, the wellbore comprising at least two substantially horizontal or inclined portions, a first opening at a first position of the earth'"'"'s surface and a second opening at a second position of the earth'"'"'s surface;
forming one or more slots in a portion of the hydrocarbon containing formation, wherein at least one of the slots extends from a side of the wellbore and is perpendicular to the at least two substantially horizontal or inclined portions of the wellbore;
providing heat to a portion of the hydrocarbon containing formation from one or more heaters placed in at least a portion of one of the slots, wherein one or more of the heaters comprise one or more insulated electrical conductors;
allowing the heat to transfer from the heaters to the portion of the hydrocarbon containing formation; and
producing hydrocarbons from the hydrocarbon containing formation.
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Abstract
Systems and methods for treating a subsurface formation are described herein. Some embodiments generally relate to systems, methods, and/or processes for treating fluid produced from the subsurface formation. Some methods include providing heat to a first section of the hydrocarbon containing formation from a plurality of heaters located in the formation; allowing the heat to transfer from the heaters to heat a portion of the first section to mobilize formation fluid; and producing formation fluid from the formation.
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Citations
24 Claims
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1. A method of treating a hydrocarbon containing formation, comprising:
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forming at least one wellbore in a hydrocarbon containing formation, the wellbore comprising at least two substantially horizontal or inclined portions, a first opening at a first position of the earth'"'"'s surface and a second opening at a second position of the earth'"'"'s surface; forming one or more slots in a portion of the hydrocarbon containing formation, wherein at least one of the slots extends from a side of the wellbore and is perpendicular to the at least two substantially horizontal or inclined portions of the wellbore; providing heat to a portion of the hydrocarbon containing formation from one or more heaters placed in at least a portion of one of the slots, wherein one or more of the heaters comprise one or more insulated electrical conductors; allowing the heat to transfer from the heaters to the portion of the hydrocarbon containing formation; and producing hydrocarbons from the hydrocarbon containing formation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of treating a hydrocarbon containing formation, comprising:
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allowing the heat to transfer from a plurality of heaters to a first section of the formation; producing hydrocarbons from the hydrocarbon containing formation; forming one or more slots in a portion of the hydrocarbon containing formation, wherein at least one of the slots extends from a side of a wellbore and is perpendicular to at least two substantially horizontal or inclined portions of the wellbore positioned in the hydrocarbon containing formation; providing heat to a second section of the hydrocarbon containing formation from one or more additional heaters placed in at least one of the slots; allowing the heat to transfer from the heaters to the second section of the formation; and producing additional hydrocarbons from the hydrocarbon containing formation. - View Dependent Claims (11)
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12. A method of producing methane from a hydrocarbon containing formation, comprising:
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forming at least one wellbore in a hydrocarbon containing formation, the wellbore comprising at least two substantially horizontal or inclined portions, a first opening at a first position of the earth'"'"'s surface and a second opening at a second position of the earth'"'"'s surface; forming one or more slots in a portion of the hydrocarbon containing formation, wherein at least one of the slots extends from a side of the wellbore and is perpendicular to the at least two substantially horizontal or inclined portions of the wellbore; providing heat to a portion of the hydrocarbon containing formation from one or more heaters placed in at least a portion of one of the slots, wherein one or more of the heaters comprise one or more insulated electrical conductors; maintaining an average temperature in the portion of the formation below a pyrolyzation temperature of hydrocarbons in the section; and removing methane from the hydrocarbon formation. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method of treating a hydrocarbon containing formation, comprising:
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forming at least one wellbore in a hydrocarbon containing formation, the wellbore comprising at least two substantially horizontal or inclined portions, a first opening at a first position of the earth'"'"'s surface and a second opening at a second position of the earth'"'"'s surface; forming one or more slots in a portion of the hydrocarbon containing formation, wherein at least one of the slots extends from a side of the wellbore and is perpendicular to the at least two substantially horizontal or inclined portions of the wellbore; providing a drive fluid to at least one of the slots; and producing hydrocarbons from the hydrocarbon formation. - View Dependent Claims (19, 20)
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21. A method of treating a hydrocarbon containing formation, comprising:
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forming at least one wellbore in a hydrocarbon containing formation, the wellbore comprising at least two substantially horizontal or inclined portions, a first opening at a first position of the earth'"'"'s surface and a second opening at a second position of the earth'"'"'s surface; forming one or more slots in a portion of the hydrocarbon containing formation, wherein at least one of the slots is perpendicular to the at least two substantially horizontal or inclined portions of the wellbore; adjusting a tension of an abrasive member of a slot drill such that the area between the first opening, the second opening, and the one or more slots forms a polygon; providing heat to a portion of the hydrocarbon containing formation from one or more heaters placed in at least a portion of one of the slots, wherein one or more of the heaters comprise one or more insulated electrical conductors; allowing the heat to transfer from the heaters to the portion of the hydrocarbon containing formation; and producing hydrocarbons from the hydrocarbon containing formation.
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22. A method of treating a hydrocarbon containing formation, comprising:
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forming at least one wellbore in a hydrocarbon containing formation, the wellbore comprising at least two substantially horizontal or inclined portions, a first opening at a first position of the earth'"'"'s surface and a second opening at a second position of the earth'"'"'s surface; forming one or more slots in a portion of the hydrocarbon containing formation, wherein at least one of the slots is perpendicular to the at least two substantially horizontal or inclined portions of the wellbore; placing one or more heaters in at least a portion of one of the slots by removing a slot drill from the wellbore;
coupling a portion of at least one heater to a pipe of the slot drill; and
threading one or more of the heaters through the slot;providing heat to a portion of the hydrocarbon containing formation from one or more of the heaters placed in at least a portion of the slot; allowing the heat to transfer from the heaters to the portion of the hydrocarbon containing formation; and producing hydrocarbons from the hydrocarbon containing formation.
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23. A method of treating a hydrocarbon containing formation, comprising:
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forming at least one wellbore in a hydrocarbon containing formation, the wellbore comprising at least two substantially horizontal or inclined portions, a first opening at a first position of the earth'"'"'s surface and a second opening at a second position of the earth'"'"'s surface; forming one or more slots in a portion of the hydrocarbon containing formation, wherein at least one of the slots is perpendicular to the at least two substantially horizontal or inclined portions of the wellbore, and wherein at least one of the slots is formed by using at least heater as an abrasive tool member of a slot drill, providing heat to a portion of the hydrocarbon containing formation from one or more heaters placed in at least a portion of one of the slots, wherein one or more of the heaters comprise one or more insulated electrical conductors; allowing the heat to transfer from the heaters to the portion of the hydrocarbon containing formation; and producing hydrocarbons from the hydrocarbon containing formation.
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24. A method of treating a hydrocarbon containing formation, comprising:
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forming at least one wellbore in a hydrocarbon containing formation, the wellbore comprising at least two substantially horizontal or inclined portions, a first opening at a first position of the earth'"'"'s surface and a second opening at a second position of the earth'"'"'s surface; forming one or more slots in a portion of the hydrocarbon containing formation, wherein at least one of the slots extends from a side of the wellbore and is perpendicular to the at least two substantially horizontal or inclined portions of the wellbore; providing heat to a portion of the hydrocarbon containing formation from one or more heaters placed in at least a portion of one of the slots, wherein one or more of the heaters comprise one or more insulated electrical conductors; and producing hydrocarbons from the hydrocarbon formation.
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Specification