US 12,110,464 B2
Phase change materials to address reversion problems in heavy oils
Asha Patel, Houston, TX (US); Kekeli A. Ekoue-Kovi, Rosenberg, TX (US); and Sankaran Murugesan, Katy, TX (US)
Assigned to Baker Hughes Oilfield Operations, LLC, Houston, TX (US)
Filed by Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed on Apr. 28, 2022, as Appl. No. 17/732,380.
Prior Publication US 2023/0348806 A1, Nov. 2, 2023
Int. Cl. C10L 10/14 (2006.01); C10L 1/14 (2006.01); C10L 1/196 (2006.01); C10L 1/236 (2006.01); C10L 10/16 (2006.01)
CPC C10L 10/14 (2013.01) [C10L 1/146 (2013.01); C10L 1/196 (2013.01); C10L 1/2364 (2013.01); C10L 10/16 (2013.01); C10L 2250/04 (2013.01)] 14 Claims
OG exemplary drawing
 
1. 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 that can absorb, store and liberate latent heat at a nearly constant phase-transition temperature, and
a pour point depressant,
where the additive provides a synergistic effect that mitigates the reversion problem better than the phase change material alone in the same total amount or the pour point depressant alone in the same total amount; and
providing a treated heavy oil.