Three-dimensional well system for accessing subterranean zones
First Claim
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1. A method for accessing a subterranean zone from a surface, comprising:
- forming an entry well from a surface; and
forming two or more exterior drainage wells from the entry well to the subterranean zone, the exterior drainage wells each extending at least outward from the entry well for a first distance and then at least downward for a second distance, and at least two of the exterior drainage wells operable to drain fluid from the subterranean zone.
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Abstract
In accordance with one embodiment of the present invention, a method is provided for accessing a plurality of subterranean zones from the surface. The method includes forming an entry well from the surface. Two or more exterior drainage wells from the entry well through the plurality of subterranean zones are formed. At least one exterior drainage well is operable to drain fluid from the plurality of subterranean zones.
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Citations
20 Claims
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1. A method for accessing a subterranean zone from a surface, comprising:
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forming an entry well from a surface; and forming two or more exterior drainage wells from the entry well to the subterranean zone, the exterior drainage wells each extending at least outward from the entry well for a first distance and then at least downward for a second distance, and at least two of the exterior drainage wells operable to drain fluid from the subterranean zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for accessing a plurality of subterranean zones from a surface, comprising:
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forming an entry well from the surface; and forming two or more exterior drainage wells from the entry well through the plurality of subterranean zones, wherein at least one exterior drainage well is operable to drain fluid from at least two of the plurality of subterranean zones. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification