Abstract: The present disclosure is generally directed to an apparatus for pumping suspended polymer liquids that reduces the formation of polymeric deposits at the seal contact surfaces and filters out deposits that do form. This allows for an oil drag reducing agent (DRA) to be delivered continuously from topside through an umbilical to subsea produced fluids flowlines to increase oil production and/or flow of gas/oil by reducing friction loss due to turbulent flow in the flowlines.

Abstract: A polymer composition has been developed that comprising an oil-in-water emulsion comprising an aqueous phase comprising water and an emulsifying surfactant having a cloud point of less than 80° C. and a hydrophilic-lipophilic balance (HLB) of greater than or equal to 8, and an oil phase comprising a high molecular weight oil-soluble polymer, wherein the oil-soluble polymer comprises a copolymer derived from reaction of a hydrophobic monomer and an ionizable monomer in a weight ratio from about 999:1 to about 80:20. Methods of using the compositions for drag reduction and corrosion inhibition are also disclosed.

Abstract: Systems and techniques can be used to invert an emulsion polymer under ultra-high shear. In some examples, a method for inverting an emulsion involves introducing the emulsion into a process liquid to form a dilute emulsion. The emulsion may be defined by a continuous phase and a discontinuous phase containing a polymer, with the polymer being soluble in the process liquid but the continuous phase being immiscible in the process liquid. A fluid pressurization device can pressurize the dilute emulsion to form a pressurized dilute emulsion. Thereafter, the pressurized dilute emulsion can be passed through a multi-channel flow restrictor, such as a capillary bundle, thereby generating a shear force for dispersing and inverting the emulsion in the process liquid.

Abstract: A polymer composition has been developed that provides low viscosity oil-in-water polymer emulsions that release the polymer in the emulsion at a faster rate and without an additional surfactant when the emulsion is added to a hydrocarbon stream. Use of a temperature-sensitive emulsifying surfactant facilitates inversion of the oil-in-water polymer emulsion when applied to a hydrocarbon composition at a temperature sufficiently high to destabilize the emulsion. These compositions are particularly useful as drag reducers for delivery to a subsea flowline via an umbilical line.