Multi-step heater deployment in a subsurface formation
First Claim
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1. A method for installing a horizontal or inclined subsurface heater, comprising:
- providing a heating section of a heater to a horizontal or inclined section of a wellbore with an installation tool;
uncoupling the tool from the heating section; and
mechanically and electrically coupling a lead-in section of the heater to the heating section of the heater, wherein the lead-in section is located in an angled or a vertical section of the wellbore.
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Abstract
A method for installing a horizontal or inclined subsurface heater includes placing a heating section of a heater in a horizontal or inclined section of a wellbore with an installation tool. The tool is uncoupled from the heating section. A lead in section is mechanically and electrically coupled to the heating section of the heater. The lead-in section is located in an angled or vertical section of the wellbore.
1192 Citations
22 Claims
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1. A method for installing a horizontal or inclined subsurface heater, comprising:
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providing a heating section of a heater to a horizontal or inclined section of a wellbore with an installation tool; uncoupling the tool from the heating section; and mechanically and electrically coupling a lead-in section of the heater to the heating section of the heater, wherein the lead-in section is located in an angled or a vertical section of the wellbore. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for providing heat to a subsurface formation, comprising:
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installing a heater comprising a heating section and a lead-in section into a wellbore in the subsurface formation, wherein the installation comprises; placing the heating section of a heater in a horizontal or inclined section of the wellbore with an installation tool; uncoupling the tool from the heating section; mechanically and electrically coupling the lead-in section of the heater to the heating section of the heater, wherein the lead-in section is located in an angled or a vertical section of the wellbore; providing electrical power to the heater; and providing heat to at least a portion of a subsurface formation from the heater. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification