US 11,814,575 B2
Additives for winterization of paraffin inhibitors
Joey Dacula Mangadlao, Agusan del Sur (PH); Holley Baron, St. Albert (CA); Mary Jane Legaspi Felipe, Sugar Land, TX (US); and Lei Zhang, Houston, TX (US)
Assigned to BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US)
Filed by Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed on Nov. 30, 2022, as Appl. No. 18/072,647.
Application 18/072,647 is a division of application No. 16/938,709, filed on Jul. 24, 2020.
Prior Publication US 2023/0098391 A1, Mar. 30, 2023
Int. Cl. C09K 8/524 (2006.01); C08G 59/20 (2006.01); C08F 265/10 (2006.01); C08F 283/06 (2006.01); C08F 265/04 (2006.01); C09K 8/536 (2006.01); C10L 1/10 (2006.01); C10L 1/14 (2006.01)
CPC C09K 8/524 (2013.01) [C08F 265/04 (2013.01); C08F 265/10 (2013.01); C08F 283/06 (2013.01); C08G 59/20 (2013.01); C09K 8/536 (2013.01); C10L 1/10 (2013.01); C10L 1/14 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A winterized paraffin inhibitor formulation, the formulation comprising:
an oxyalkylated linear or branched aliphatic compound having 12 or more carbons; and
a high molecular weight aliphatic polymer paraffin inhibitor present in an amount ranging from 1 wt. % to about 70 wt. %, based on total weight of oxyalkylated linear or branched aliphatic compound and the high molecular weight aliphatic polymer paraffin inhibitor;
wherein the oxyalkylated linear or branched aliphatic compound is formed by the oxyalkylation of a linear or branched aliphatic compound having 12 or more carbon atoms that comprises grafting the linear or branched aliphatic compound having 12 or more carbon atoms with a polyether via a ring-opening reaction, and wherein the polyether is selected from a group consisting of a polymer of ethylene oxide, a polymer of propylene oxide, a polymer of butylene oxide, and combinations thereof, and
wherein the branched aliphatic compound comprises branches, each branch consists of aliphatic alkyl functional groups containing 2 to 28 carbon atoms and optionally functional groups selected from the group consisting of oxygen functional groups, nitrogen functional groups, sulfur functional groups, phosphorous functional groups, and combinations thereof, and
wherein the branched aliphatic compounds are grafted with a polyether is a crosslinked branched aliphatic compound, and wherein the branched aliphatic compound has 20 or more carbon atoms.