US 12,221,579 B2
Formulation for the recovery of hydrocarbons including a surfactant system
Edward Asirvatham, Chatham, NJ (US)
Assigned to AdvanSix Resins & Chemicals LLC, Parsippany, NJ (US)
Filed by AdvanSix Resins & Chemicals LLC, Parsippany, NJ (US)
Filed on Nov. 29, 2023, as Appl. No. 18/523,068.
Application 18/523,068 is a division of application No. 17/196,893, filed on Mar. 9, 2021, granted, now 11,912,930.
Claims priority of provisional application 62/988,194, filed on Mar. 11, 2020.
Prior Publication US 2024/0150640 A1, May 9, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 43/16 (2006.01); C09K 8/04 (2006.01); C09K 8/584 (2006.01); C09K 8/60 (2006.01); C09K 8/32 (2006.01)
CPC C09K 8/584 (2013.01) [C09K 8/602 (2013.01); C09K 8/04 (2013.01); C09K 8/32 (2013.01); E21B 43/16 (2013.01)] 21 Claims
 
1. A formulation for the recovery of hydrocarbons, comprising: at least one surfactant of Formula I,

OG Complex Work Unit Chemistry
wherein R1 and R2 may be the same, and may be selected from the group consisting of hydrogen and C1-C6 alkyl,
n is an integer from 2 to 5;
m is an integer from 9 to 20;
the terminal nitrogen is further substituted with R3, wherein R3 is selected from the group consisting of, oxygen, and
an aqeous phase.