Generating multiple hydraulic fractures in earth formations for

Details Generating multiple hydraulic fractures in earth formations for Generating multiple hydraulic fractures in earth formations for

1994-12-14

1996-07-16

Suchfield, George A.

Hydraulic and earth engineering

Soil remediation

In situ contaminant removal or stabilization

1662501, 166308, 588250, B09B 300, E21B 4710

Patent

active

055361153

ABSTRACT:
Slurried solids waste materials are disposed of into a preselected subterranean disposal zone by generating radially extending hydraulic fractures from a disposal well and filling the primary fractures with disposal material until screenout is observed or it is determined that the fracture is filled with waste material from monitoring fracture growth and measuring the injected volume of material. The fluid flow rate is allowed to decline to provide relaxation and closure of the fracture at a point between the fracture tip and the injection well and secondary fractures are then created by injecting a fracturing fluid followed by further injection of waste material to fill the secondary fractures. The process is repeated to establish a dendritic array of multiple hydraulic fractures in the disposal zone sufficient to hold a predetermined quantity of waste material.

REFERENCES:
patent: 3933205 (1976-01-01), Kiel
patent: 5109933 (1992-05-01), Jackson
patent: 5226749 (1993-07-01), Perkins
patent: 5314265 (1994-05-01), Perkins et al.
patent: 5322126 (1994-06-01), Scott, III
patent: 5387737 (1995-02-01), Schmidt et al.
patent: 5405224 (1995-04-01), Aubert et al.

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