Mobilization of heavy oil
First Claim
1. A method for increasing mobility of heavy oil, the method comprising:
- disposing a solvating composition comprising a paraffinic solvent and a multifunctional solvent in a heavy oil environment including a heavy oil, the heavy oil comprising asphaltene;
contacting the heavy oil with the solvating composition; and
stabilizing asphaltene in the heavy oil with the solvating composition to increase mobility of the heavy oil and to form a stabilized heavy oil which includes the heavy oil and solvating composition;
wherein the multifunctional solvent comprises an ionic liquid and a surfactant different from the ionic liquid, andwherein the ionic liquid comprises one or more of the following cations;
pyrazolium;
piperidinium;
sulfonium;
morpholinium;
indolium;
thiazolium;
benzothiazolium;
or cyclopropenylium.
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Accused Products
Abstract
A process for increasing mobility of heavy oil includes: disposing a solvating composition comprising a paraffinic solvent and a multifunctional solvent in a heavy oil environment including a heavy oil, the heavy oil comprising asphaltene; contacting the heavy oil with the solvating composition; and stabilizing asphaltene in the heavy oil with the solvating composition to increase mobility of the heavy oil and to form a stabilized heavy oil which includes the heavy oil and solvating composition. A method for making stabilized heavy oil includes separating resin from an oil; combining the resin and a paraffinic solvent to form a solvating composition; disposing the solvating composition in a heavy oil environment which includes heavy oil comprising asphaltene; and contacting the asphaltene with the solvating composition to make stabilized heavy oil, wherein the stabilized heavy oil comprises the solvating composition and heavy oil.
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Citations
25 Claims
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1. A method for increasing mobility of heavy oil, the method comprising:
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disposing a solvating composition comprising a paraffinic solvent and a multifunctional solvent in a heavy oil environment including a heavy oil, the heavy oil comprising asphaltene; contacting the heavy oil with the solvating composition; and
stabilizing asphaltene in the heavy oil with the solvating composition to increase mobility of the heavy oil and to form a stabilized heavy oil which includes the heavy oil and solvating composition;wherein the multifunctional solvent comprises an ionic liquid and a surfactant different from the ionic liquid, and wherein the ionic liquid comprises one or more of the following cations;
pyrazolium;
piperidinium;
sulfonium;
morpholinium;
indolium;
thiazolium;
benzothiazolium;
or cyclopropenylium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for increasing mobility of heavy oil, the method comprising:
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disposing a solvating composition comprising a paraffinic solvent and a multifunctional solvent in a heavy oil environment including a heavy oil, the heavy oil comprising asphaltene; contacting the heavy oil with the solvating composition; and
stabilizing asphaltene in the heavy oil with the solvating composition to increase mobility of the heavy oil and to form a stabilized heavy oil which includes the heavy oil and solvating composition;wherein the multifunctional solvent comprises an ionic liquid and a resin extracted from an oil obtained from an earth formation or deposit; and wherein the ionic liquid comprises one or more of the following cations;
pyrazolium;
piperidinium;
sulfonium;
morpholinium;
indolium;
thiazolium;
benzothiazolium;
or cyclopropenylium. - View Dependent Claims (23, 24, 25)
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Specification