Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michel Van Bruggen0
Henk Lekkerkerker0
Trevor Hughes0
Stephen Davies0
Arnaud Van Der Beken0
Date of Patent
November 24, 2009
0Patent Application Number
118411990
Date Filed
August 20, 2007
0Patent Primary Examiner
Patent abstract
The invention concerns an aqueous delayed-gelation solution for use in hydrocarbon wells. According to the invention, the aqueous delayed-gelation solution a dissolved metal salt which, in use, hydrolyses to form a gel, wherein the solution contains suspended inorganic particles and the method comprises the steps of—providing the aqueous delayed-gelation solution, and—injecting the solution into the hydrocarbon well, whereby the suspended inorganic particles reduce or block the flow of the delayed-gelation solution to relatively low permeability formation zones thereby selectively placing the solution in a relatively high permeability formation zone.
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