Wells – Processes – Placing fluid into the formation
Reexamination Certificate
2005-04-29
2008-11-18
Gay, Jennifer H (Department: 3676)
Wells
Processes
Placing fluid into the formation
C166S280100, C166S250010
Reexamination Certificate
active
07451820
ABSTRACT:
Disclosed is a method for fracture stimulating well bores using gaseous nitrogen and/or liquid carbon dioxide combined with a partially dehydrated proppant. The method includes mixing proppant with a fracturing fluid to create a proppant-laden slurry, removing the majority of the fluid from the proppant using centrifugal forces, blending the proppant with gaseous nitrogen and/or liquid carbon dioxide, and thereafter utilizing that combination to fracture-stimulate well bores. The method also includes the use of monitoring and flow control equipment to regulate and/or automate the method.
REFERENCES:
patent: 4126181 (1978-11-01), Black
patent: 4176064 (1979-11-01), Black
patent: 1 215 640 (1986-12-01), None
patent: 1 220 412 (1987-04-01), None
Albers Blair
Fordyce Victor E.
Leshchyshyn Tim
Rieb Bradley A.
Thomson James D.
BJ Services Company
Gay Jennifer H
Howrey LLP
Leonard Kerry W
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