Back to results
US 12,662,617 B2Granted
Hydrogen reactive oil well cement additives
AssigneeHalliburton Energy Services, Inc.
InventorsPaul J. Jones, Samuel J. Lewis
Life of this patent
Estimating the term…
Abstract
A method including providing a cement slurry comprising particulates, wherein the particulates comprise an unsaturated hydrocarbon, which can be solid, and a hydrogenation catalyst, and placing the cement slurry downhole, for example, in a wellbore.
Claims20
A method comprising:
- providing a cement slurry comprising particulates, wherein the particulates comprise an unsaturated hydrocarbon and a hydrogenation catalyst;
- placing the cement slurry downhole;
- and
- allowing the cement slurry to set to provide a set cement,
- wherein, after a time period, microfractures are created in the set cement, and hydrogen migrates into the microfractures, wherein exposure of the particulates to the hydrogen in the microfractures results in hydrogenation, catalyzed by the hydrogenation catalyst, of the unsaturated hydrocarbon of the particulates, resulting in expansion of the particulates to reduce or eliminate the migration of the hydrogen.
2 more elements
A method comprising:
- drilling a wellbore;
- and
- cementing the well with a cement slurry comprising particulates, wherein the particulates comprise a unsaturated hydrocarbon and a hydrogenation catalyst to provide a set cement,
- whereby microfractures that form in the set cement are self-healed via reaction, catalyzed by the hydrogenation catalyst, of hydrogen migrating into the microfractures with the unsaturated hydrocarbon of the particulates to prevent further hydrogen migration through the set cement.
1 more element
A well comprising:
- a set cement produced by allowing a cement slurry to set, wherein the cement slurry comprises:
- particulates, wherein the particulates comprise a unsaturated hydrocarbon and a hydrogenation catalyst;
- and
- hydrogen migrating into microfractures of the set cement which reacts with the unsaturated hydrocarbon via hydrogenation reaction, catalyzed by the hydrogenation catalyst, to self-heal the microfractures, thus minimizing and/or preventing further migration of the hydrogen into the microfractures.
1 more element
Dependencies are inferred from the claim text.