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AssigneeBaker Hughes Incorporated
InventorsJeffery R. Harris, John F. Motier, Lu-Chien Chou, Thomas J. Martin
Estimating the term…
A process for continuously producing a polymer drag reducing agent (DRA) is described. The process concerns mixing a monomer and a catalyst in at least one continuously stirred tank reactor (CSTR) to form a mixture. The mixture is continuously injected into a volume continuously formed by a thermoplastic material, such as polyethylene. The thermoplastic material is periodically sealed off to form a temporary container or bag. The monomer is permitted to polymerize in the temporary container to form polymer. In one non-limiting embodiment, the polymerization in the bag takes place within an inert, circulating fluid that accelerates heat transfer. The polymer and the temporary container are then ground together, preferably at non-cryogenic temperatures, to produce a particulate polymer drag reducing agent. In one preferred, non-limiting embodiment, the grinding or pulverizing occurs in the presence of at least one solid organic grinding aid. Finally, the particulate polymer drag reducing agent may be combined with a dispersing fluid.
A method for producing a polymer drag reducing agent, comprising:
A method for producing a polymer drag reducing agent, comprising:
A slurry of particulate polymer drag reducing agent comprising:
A slurry of particulate polymer drag reducing agent comprising:
Dependencies are inferred from the claim text.