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US 12,600,896 B2Granted
Lignin-based compositions and related hydrocarbon recovery methods
AssigneeLignoSol IP Limited
InventorsDesmond Alexander Somerville, Patrick Dieter Waibel
Life of this patent
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Abstract
Compositions are provided for hydrocarbon recovery applications. In some embodiments, the composition comprises lignin, in particular technical lignin, and at least one strain of bacteria capable of biosurfactant production and/or a biosurfactant produced by at least one such isolated strain of bacteria. Also provided is a method for recovering hydrocarbon from a subterranean reservoir.
Claims12
A method for recovering hydrocarbons from a hydrocarbon source, the method comprising:
- a) providing a hydrocarbon recovery composition comprising i) lignin and ii) at least one isolated strain of bacteria capable of producing at least one biosurfactant and/or at least one biosurfactant produced from the at least one bacteria, wherein the lignin comprises lignin particles, wherein at least 20% of the lignin particles are lignin nanoparticles, and wherein the composition has a solids content of about 50% or above;
- b) contacting the hydrocarbon source with the composition;
- and
- c) recovering at least a portion of the contacted hydrocarbons.
1 more element
A method for recovering hydrocarbons from a hydrocarbon source, the method comprising:
- a) injecting a pre-treatment fluid comprising at least 50% pyroligneous acid into the hydrocarbon source;
- b) contacting the hydrocarbon source with a hydrocarbon recovery composition comprising i) lignin and ii) at least one isolated strain of bacteria capable of producing at least one biosurfactant and/or at least one biosurfactant produced from the at least one bacteria, wherein the composition has a solids content of about 50% or above;
- and
- c) recovering at least a portion of the contacted hydrocarbons.
1 more element
Dependencies are inferred from the claim text.