Fracturing of subsurface formations with Bingham plastic fluids

Details Fracturing of subsurface formations with Bingham plastic fluids Fracturing of subsurface formations with Bingham plastic fluids

1975-04-03

1976-04-06

Novosad, Stephen J.

Wells

Processes

Placing fluid into the formation

166307, E21B 4326, E21B 4327

Patent

active

039483258

ABSTRACT:
A method of increasing the permeability of a subsurface formation by the utilization of a Bingham plastic fracture fluid. The Bingham plastic fracture fluid is pumped into a preformed fracture or a fracture formed with the Bingham plastic fluid and hydraulic pressure is imparted to the formation which is greater than that which was required to initially fracture the formation (i.e., the formation is overpressurized) by either (1) relieving the pumping pressure on the Bingham plastic fluid in the fracture and allowing the fracture to heal and thereafter reapplying the pumping pressure on the Bingham plastic fluid in an increased amount, e.g., an amount sufficient to move the Bingham plastic fluid in the fracture; or (2) continuing pumping of the Bingham plastic fluid into the fracture such that the friction drop caused by the continued pumping results in such increase in pressure.

REFERENCES:
patent: 2965172 (1960-12-01), Da Roza
patent: 3096284 (1963-07-01), Slate
patent: 3163219 (1964-12-01), Wyant et al.
patent: 3179172 (1965-04-01), Reed et al.
patent: 3378073 (1968-04-01), Savins
patent: 3378074 (1968-04-01), Kiel
patent: 3475334 (1969-10-01), Boudreaux
patent: 3592266 (1971-07-01), Tinsley
patent: 3727688 (1973-04-01), Clampitt
patent: 3766986 (1973-10-01), Kiel
patent: 3888312 (1975-06-01), Tiner et al.

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