Irregular pattern treatment of a subsurface formation
First Claim
1. A method of heating a subsurface hydrocarbon containing formation, comprising:
- providing heat flux per volume to a first portion of a subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more first heat sources positioned in the first portion; and
providing heat flux per volume to a second portion of the subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more second heat sources positioned in the second portion, wherein the heat flux per volume provided by the two or more second heat sources is greater than the heat flux per volume provided by the two or more first heat sources, wherein the second portion is positioned below the first portion, and wherein the second heat sources are separate from the first heat sources.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of heating a subsurface hydrocarbon containing formation includes providing heat flux per volume to a first portion of a subsurface hydrocarbon containing formation. The heat flux per volume is provided by two or more first heat sources positioned in the first portion. Heat flux per volume is provided to a second portion of the subsurface hydrocarbon containing formation with the heat flux per volume being provided by two or more second heat sources positioned in the second portion. The heat flux per volume provided by the two or more second heat sources is greater than the heat flux per volume provided by the two or more first heat sources. The second portion is positioned below the first portion.
-
Citations
26 Claims
-
1. A method of heating a subsurface hydrocarbon containing formation, comprising:
-
providing heat flux per volume to a first portion of a subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more first heat sources positioned in the first portion; and providing heat flux per volume to a second portion of the subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more second heat sources positioned in the second portion, wherein the heat flux per volume provided by the two or more second heat sources is greater than the heat flux per volume provided by the two or more first heat sources, wherein the second portion is positioned below the first portion, and wherein the second heat sources are separate from the first heat sources. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
-
22. A method of heating a subsurface hydrocarbon containing formation, comprising:
-
providing heat flux per volume to a first portion of a subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more first heat sources positioned in the first portion; providing heat flux per volume to a second portion of the subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more second heat sources positioned in the second portion, wherein the heat flux per volume provided by the two or more second heat sources is greater than the heat flux per volume provided by the two or more first heat sources, and wherein the second portion is positioned below the first portion; and pyrolyzing at least some hydrocarbons in the second portion.
-
-
23. A method of heating a subsurface hydrocarbon containing formation, comprising:
-
providing heat flux per volume to a first portion of a subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more first heat sources positioned in the first portion; providing heat flux per volume to a second portion of the subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more second heat sources positioned in the second portion, wherein the heat flux per volume provided by the two or more second heat sources is greater than the heat flux per volume provided by the two or more first heat sources, and wherein the second portion is positioned below the first portion; and increasing a pressure in the formation to between about 2070 kPa and about 3450 kPa.
-
-
24. A method of heating a subsurface hydrocarbon containing formation, comprising:
-
providing heat flux per volume to a first portion of a subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more first heat sources positioned in the first portion; and providing heat flux per volume to a second portion of the subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more second heat sources positioned in the second portion, wherein the heat flux per volume provided by the two or more second heat sources is greater than the heat flux per volume provided by the two or more first heat sources, wherein the second portion is positioned below the first portion, and wherein the first portion of the formation comprises about two thirds of the formation positioned below an overburden of the formation.
-
-
25. A method of heating a subsurface hydrocarbon containing formation, comprising:
-
providing heat flux per volume to a first portion of a subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more first heat sources positioned in the first portion; providing heat flux per volume to a second portion of the subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more second heat sources positioned in the second portion, wherein the heat flux per volume provided by the two or more second heat sources is greater than the heat flux per volume provided by the two or more first heat sources, and wherein the second portion is positioned below the first portion; and positioning a production well in or adjacent to the second portion of the formation.
-
-
26. A method of heating a subsurface hydrocarbon containing formation, comprising:
-
providing heat flux per volume to a first portion of a subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more first heat sources positioned in the first portion; and providing heat flux per volume to a second portion of the subsurface hydrocarbon containing formation, wherein the heat flux per volume is provided by two or more second heat sources positioned in the second portion, wherein the heat flux per volume provided by the two or more second heat sources is greater than the heat flux per volume provided by the two or more first heat sources, wherein the second portion is positioned below the first portion, and wherein the second portion of the formation comprises more second heat sources than the first portion comprises first heat sources.
-
Specification