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US 2023/0348806 A1Published application
Phase change materials to address reversion problems in heavy oils
AssigneeBaker Hughes Oilfield Operations LLC
InventorsAsha Patel, Kekeli A. Ekoue-Kovi, Sankaran Murugesan
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Abstract
Reversion problems with heavy oils, such as heavy fuel oils, are mitigated by introducing an effective amount of an additive that contains both a phase change material and a pour point depressant, even synergistically mitigated.
Claims18
A method to mitigate a reversion problem of a heavy oil, comprising:
- introducing into the heavy oil having the reversion problem an effective amount of an additive to mitigate the reversion problem where the additive comprises both:
- a phase change material, and
- a pour point depressant;
- and
- providing a treated heavy oil.
2 more elements
A method to mitigate a reversion problem of a heavy oil, comprising:
- introducing into the heavy oil having the reversion problem an effective amount of an additive to mitigate the reversion problem where the additive comprises both:
- from about 1 ppm to 2,000 ppm of a phase change material, based on the heavy oil, where the phase change material is selected from the group consisting of:
- organic phase change materials,
- inorganic phase change materials,
- eutectic mixtures of at least two-phase change materials and
- combinations thereof;
- and
- from about 10 ppm to about 20,000 ppm of a pour point depressant, based on the heavy oil, where the pour point depressant is selected from the group consisting of:
- ethyl vinyl acetate copolymers,
- alpha-olefin maleic anhydrides,
- vinyl acetate olefin maleic anhydride copolymers,
- polymeric amides and imides,
- poly alkyl acrylic polymers, and
- combinations thereof;
- and
- providing a treated heavy oil.
13 more elements
A treated heavy oil, comprising:
- heavy oil having a reversion problem;
- and
- an effective amount of an additive to mitigate the reversion problem where the additive comprises both:
- a phase change material, and
- a pour point depressant.
2 more elements
Dependencies are inferred from the claim text.