Three-dimensional well system for accessing subterranean zones

Details Three-dimensional well system for accessing subterranean zones Three-dimensional well system for accessing subterranean zones

2006-04-11

2006-04-11

Bagnell, David (Department: 3672)

Wells

Processes

Specific pattern of plural wells

C166S050000, C166S313000, C166S366000, C175S061000

Reexamination Certificate

active

07025137

ABSTRACT:
A drainage system for accessing multiple subterranean zones from the surface includes an entry well extending from the surface. The system also includes two or more exterior drainage wells extending from the entry well through the subterranean zones. The exterior drainage wells each extend outwardly and downwardly from the entry well for a first selected distance and then extend downwardly in a substantially vertical orientation for a second selected distance.

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