US 11,814,458 B2
Drag reducing agent and process of manufacture thereof
Jian Zou, Sugar Land, TX (US); and Wojciech Jakubowski, Sugar Land, TX (US)
Assigned to BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US)
Filed by Jian Zou, Sugar Land, TX (US); and Wojciech Jakubowski, Sugar Land, TX (US)
Filed on Oct. 26, 2021, as Appl. No. 17/510,770.
Claims priority of provisional application 63/127,930, filed on Dec. 18, 2020.
Prior Publication US 2022/0195098 A1, Jun. 23, 2022
Int. Cl. C09K 8/035 (2006.01); C08F 293/00 (2006.01); C09K 8/82 (2006.01); C09K 8/60 (2006.01)
CPC C08F 293/005 (2013.01) [C09K 8/602 (2013.01); C09K 8/82 (2013.01); C08F 2438/01 (2013.01); C08F 2438/02 (2013.01); C08F 2438/03 (2013.01); C09K 2208/28 (2013.01)] 13 Claims
 
1. A process of manufacturing a composition comprising a particulate drag reducing agent, the process comprising:
continuously forming a temporary container;
introducing an unsaturated monomer component and a radical polymerization component into the temporary container;
sealing the temporary container to form a sealed temporary container;
allowing the unsaturated monomer component to polymerize in the sealed temporary container to form the drag reducing agent via a radical polymerization reaction, the drag reducing agent having a molecular weight of about 1 million gram/mol to about 50 million gram/mol; and
grinding the drag reducing agent to form a composition comprising a particulate drag reducing agent, the particulate drag reducing agent having a particle size of about 1 to about 1,500 microns,
wherein the temporary container is coated with wax, a silicone, a phenolic resin, or a combination comprising at least one of the foregoing.