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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0576782 (2009-10-09) |
등록번호 | US-8353347 (2013-01-15) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 25 인용 특허 : 746 |
A method for making a coiled insulated conductor heater to heat a subsurface formation includes pushing the insulated conductor heater longitudinally inside a flexible conduit using pressure. One or more cups are coupled to the outside of the insulated conductor heater. The cups maintain at least so
A method for making a coiled insulated conductor heater to heat a subsurface formation includes pushing the insulated conductor heater longitudinally inside a flexible conduit using pressure. One or more cups are coupled to the outside of the insulated conductor heater. The cups maintain at least some pressure inside at least a portion of the flexible conduit as the insulated conductor heater is pushed inside the flexible conduit. The flexible conduit and the insulated conductor heater are coiled onto a coiled tubing rig.
1. A method for installing a horizontal or inclined subsurface insulated conductor heater, comprising: installing a flexible conduit and an insulated conductor heater into a subsurface wellbore by uncoiling the flexible conduit and the insulated conductor heater from a coiled tubing rig, wherein the
1. A method for installing a horizontal or inclined subsurface insulated conductor heater, comprising: installing a flexible conduit and an insulated conductor heater into a subsurface wellbore by uncoiling the flexible conduit and the insulated conductor heater from a coiled tubing rig, wherein the insulated conductor heater is located longitudinally inside the flexible conduit, and one or more cups are coupled to the outside of the insulated conductor heater, the cups being configured to maintain pressure inside the flexible conduit; andremoving the flexible conduit from the subsurface wellbore with the coiled tubing rig while leaving the insulated conductor heater installed in the subsurface wellbore. 2. The method of claim 1, wherein the cups are flexible cups. 3. The method of claim 1, wherein the cups comprise elastomeric cups. 4. The method of claim 1, wherein the cups provide little or no mechanical resistance to the movement of the insulated conductor heater inside the flexible conduit. 5. The method of claim 1, wherein one or more of the cups are configured to at least partially burn or melt when the insulated conductor heater is energized and the temperature of the insulated conductor heater increases. 6. The method of claim 1, further comprising placing a guide string on an end of the flexible conduit and insulated conductor heater assembly. 7. The method of claim 1, further comprising: placing a guide string on an end of the flexible conduit and insulated conductor heater assembly; andusing the guide string to guide the installation of the flexible conduit and insulated conductor heater assembly into the subsurface wellbore. 8. The method of claim 1, wherein the insulated conductor heater is at least about 10 m in length. 9. The method of claim 1, further comprising stopping removal of the flexible conduit at a bend in the subsurface wellbore, and pumping plugging material through the flexible conduit to the bend in the subsurface wellbore, wherein the plugging material is configured to plug the subsurface wellbore around the insulated conductor heater at the bend in the subsurface wellbore. 10. The method of claim 1, wherein the insulated conductor heater is placed in a hydrocarbon containing layer of the subsurface formation. 11. A method for heating a subsurface formation, comprising: providing heat from an insulated conductor heater to at least a portion of the formation, wherein the insulated conductor heater has been installed in the formation by: installing a flexible conduit and the insulated conductor heater into a subsurface wellbore by uncoiling the flexible conduit and the insulated conductor heater from a coiled tubing rig, wherein the insulated conductor heater is located longitudinally inside the flexible conduit, and one or more cups are coupled to the outside of the insulated conductor heater, the cups being configured to maintain pressure inside the flexible conduit; andremoving the flexible conduit from the subsurface wellbore with the coiled tubing rig while leaving the insulated conductor heater installed in the subsurface wellbore. 12. The method of claim 11, wherein the cups are flexible cups. 13. The method of claim 11, wherein the cups comprise elastomeric cups. 14. The method of claim 11, wherein the cups provide little or no mechanical resistance to the movement of the insulated conductor heater inside the flexible conduit. 15. The method of claim 11, further comprising at least partially burning or melting one or more of the cups. 16. The method of claim 11, wherein the insulated conductor heater is at least about 10 m in length. 17. The method of claim 11, further comprising mobilizing at least some hydrocarbons in the formation with the provided heat, and producing at least some of the mobilized hydrocarbons from the formation. 18. The method of claim 11, further comprising pyrolyzing at least some hydrocarbons in the formation with the provided heat, and producing at least some of the pyrolyzed hydrocarbons from the formation.
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