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U.S. Department of Energy
Office of Scientific and Technical Information

Well completion technique

Patent ·
OSTI ID:6450796
This patent describes a method of completing a well in a productive subterranean formation comprising: drilling a bore hole into the earth and penetrating the formation; running into the bore hole a casing string; cementing the casing string in the bore hole, by pumping cement downwardly through the casing string, allowing the cement to pass upwardly through an annulus provided between the casing and the bore hole and allowing the cement to set up; at least partially filling the hole with a completion liquid; opening perforations, through the casing string, aggregating a predetermined area; running into the casing string a gas generating tool comprising a solid propellant charge of a size so that there is at least 14 square inches of open perforation area per cubic foot of propellant; igniting the propellant charge; and fracturing the formation by delivering the gaseous products produced through the perforations into the formation.
Assignee:
EDB-87-130674; NOV-87-068047
Patent Number(s):
US 4673039
OSTI ID:
6450796
Country of Publication:
United States
Language:
English