Patterns of horizontal and vertical wells for improving oil...

Details Patterns of horizontal and vertical wells for improving oil... Patterns of horizontal and vertical wells for improving oil...

E - Fixed Constructions

21

B

166/32

E21B 43/30 (2006.01)

Patent

CA 1261250

PATTERNS OF HORIZONTAL AND VERTICAL WELLS FOR IMPROVING OIL RECOVERY EFFICIENCY (D#78,595-F) ABSTRACT The invention is a method of recovering hydrocarbons from an underground formation by employing a modified 5 spot or 9 spot well pattern which contains a substantially vertical central well and four substantially horizontal wells, each having one end located relatively near the center of a substantially rectangular well pattern and the other ends located relatively near each of the corners of the well pattern. Preferably, the well pattern will also contain four substantially vertical corner wells located approximately at the four corners of the substan- tially rectangular modified 5 spot or 9 spot well pattern.

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