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US 6,187,839 B1Granted
Methods of sealing compositions and methods
AssigneeHalliburton Energy Services, Inc.
InventorsLarry Eoff, David Brown
Life of this patent
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Abstract
The present invention provides methods of sealing subterranean zones using high density sealing compositions. The methods are basically comprised of introducing a sealing composition into the subterranean zone comprised of a high density aqueous salt solution, a polymerizable monomer and a polymerizable initiator and allowing said sealing composition to form a sealing gel in said zone.
Claims22
A method of sealing a subterranean zone penetrated by a well bore comprising the steps of:
- introducing a high density sealing composition into said well bore, said composition comprising a high density aqueous salt solution, a water soluble polymerizable monomer and a polymerization initiator;
- and
- allowing said sealing composition to flow into said subterranean zone as a result of its high density and thereafter to polymerize and form a sealing gel in said zone.
A method of sealing a subterranean zone penetrated by a well bore comprising the steps of:
- introducing a high density sealing composition into said well bore and spotting it over said subterranean zone, said composition comprising a high density aqueous salt solution, a water soluble polymerizable monomer and a polymerization initiator;
- allowing said sealing composition to flow as a result of its high density and the high hydrostatic pressure produced thereby into said zone;
- and
- allowing said sealing composition to form a sealing gel therein.
1 more element
Dependencies are inferred from the claim text.