Modified 7 spot patterns of horizontal and vertical wells for im

Details Modified 7 spot patterns of horizontal and vertical wells for im Modified 7 spot patterns of horizontal and vertical wells for im

1986-03-03

1987-08-11

Suchfield, George A.

Wells

Wells with lateral conduits

166245, 166272, E21B 4324, E21B 4330

Patent

active

046855157

ABSTRACT:
The invention is a method of recovering hydrocarbons from an underground formation by employing modified 7 spot well patterns which contain six substantially vertical corner wells forming a substantially hexagonal well pattern and six substantially horizontal wells located within the hexagonal well pattern running between each of the vertical corner wells and the center of the well pattern. Preferably, the modified 7 spot pattern will also contain a substantially vertical central well located relatively near the center of the substantially hexagonal well pattern. Another embodiment contains six substantially vertical corner wells forming a substantially hexagonal well pattern, a substantially vertical central well and six sets of three horizontal wells, each set of three horizontal wells forming a substantially Y-shaped pattern.

REFERENCES:
patent: 2914309 (1959-11-01), Salomonsson
patent: 3136359 (1964-06-01), Graham
patent: 4356866 (1982-11-01), Savins
patent: 4375302 (1983-03-01), Kalmar
patent: 4384613 (1983-05-01), Owen et al.
patent: 4390067 (1983-06-01), Willman
patent: 4434849 (1984-03-01), Allen
patent: 4503910 (1985-03-01), Shu
patent: 4535845 (1985-08-01), Brown et al.
patent: 4598770 (1986-07-01), Shu et al.

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