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US 12,649,874 B2Granted
Hydrogen swellable fillers for surface and underground fluid isolation barriers
AssigneeSchlumberger Technology Corporation
InventorsJushik Yun, Manuel Marya
Life of this patent
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Abstract
The present disclosure relates to hydrogen swellable fillers, methods for their preparation and their use in, for example, oil-field exploration, production, testing, underground gas storage, production and transportation. The hydrogen swellable material can include an elastomer and a filler. The elastomer can have a hardness between about 40 and about 80 shore A, and the hydrogen swellable material swells in volume between about 40% and about 100% upon contact with hydrogen.
Claims19
A hydrogen swellable material comprising:
- (i) an elastomer;
- (ii) a filler;
- and
- (iii) an intermetallic compound,
- wherein the elastomer has a hardness between about 40 and about 80 shore A,
- wherein the hydrogen swellable material swells in volume between about 40% and about 100% upon contact with hydrogen at partial hydrogen pressures between about 35 MPa and about 100 MPa,
- wherein the intermetallic compound is capable of absorbing hydrogen to form a metal hydride compound, and
- wherein the hydrogen swellable material has a gravimetric density of between about 0.9 wt. % and about 3 wt. % hydrogen and a volumetric density of between about 0.9 kg H2/m3 and about 3 kg H2/m3.
5 more elements
A hydrogen swellable material comprising:
- (i) an elastomer;
- (ii) a filler;
- (iii) an intermetallic compound;
- and
- (iv) particles,
- wherein the elastomer is selected from nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR), carboxylated nitrile rubber (XNBR), carboxylated hydrogenated nitrile rubber (XHNBR), and any mixture or blend of any of the foregoing,
- wherein the elastomer is present in an amount of about 100 phr and has a hardness between about 40 and about 80 shore A,
- wherein the filler comprises carbon black and is present in an amount of between about 25 to about 100 phr,
- wherein the particles have a particle size of between about 1 nanometer and about 100 microns,
- wherein the hydrogen swellable material swells in volume between about 40% and about 100% upon contact with hydrogen at partial hydrogen pressures between about 35 MPa and about 100 MPa,
- wherein the intermetallic compound is capable of absorbing hydrogen to form a metal hydride compound,
- wherein the intermetallic compound comprises at least one of LaNi5, TiFe, or ZrNi, and
- wherein the hydrogen swellable material has a gravimetric density of between about 0.9 wt. % and about 3 wt. % hydrogen and a volumetric density of between about 0.9 kg H2/m3 and about 3 kg H2/m3.
10 more elements
Dependencies are inferred from the claim text.