摘要:
Implementations described herein generally relate to a drag reducing agent (DRA) for improving flow of crude oils having high asphaltene content through pipelines. The DRA is a terpolymer having a glass transition temperature (Tg) of 6 degrees Celsius or below. The terpolymer is formed by a first monomer, a second monomer, and a third monomer. The first and second monomers are chosen based on the glass transition temperatures of corresponding homopolymers. The glass transition temperature of the homopolymer formed with the first monomer is at least 120 degrees Celsius higher than the glass transition temperature of the homopolymer formed with the second monomer. The DRA comprised of the terpolymer formed with the second monomer produces softer solids and fewer solids due to the low glass transition temperature of the terpolymer. The softer solids are more easily handled by the pump to keep the injection system clear.
摘要:
The process begins by obtaining a first batch of monomers selected from a group of acrylates with a molecular, weight equal to or less than butyl acrylate and/or methacrylate with a molecular weight equal to or less than butyl methacrylate. A second batch of monomers is then selected from a group of acrylates with a molecular weight greater than butyl acrylate and/or methacrylate with a molecular weight greater than butyl methacrylate. A mixture is then prepared by mixing the first batch of monomers and the second batch of monomers, wherein the second batch of monomers are greater than 50% by weight of the mixture. Finally, the mixture is polymerized to produce a drag reducing polymer. The drag reducing polymer is capable of imparting drag reducing properties in liquid hydrocarbons.
摘要:
A cooling device for an internal combustion engine includes a circulation path, a coolant temperature sensor, a coolant pump, and an electronic control unit. The electronic control unit is configured to execute processing for performing feedback control on power of the coolant pump such that the output of the coolant temperature sensor becomes a target temperature, micelle determination processing for determining whether or not micelles are added to a coolant based on pump work of the coolant pump and the flow rate of the coolant flowing through the circulation path, Toms determination processing for determining whether or not the flow rate of the coolant satisfies a Toms effect expression condition, and correction processing for increasing a relative value of the output of the coolant temperature sensor with respect to the target temperature when the micelles is added and the Toms effect expression condition is established.
摘要:
The process begins by obtaining a first batch of monomers selected from a group of acrylates with a molecular weight equal to or less than butyl acrylate and/or methacrylate with a molecular weight equal to or less than butyl methacrylate. A second batch of monomers is then selected from a group of acrylates with a molecular weight greater than butyl acrylate and/or methacrylate with a molecular weight greater than butyl methacrylate. A mixture is then prepared by mixing the first batch of monomers and the second batch of monomers, wherein the second batch of monomers are greater than 50% by weight of the mixture. Finally, the mixture is polymerized to produce a drag reducing polymer. The drag reducing polymer is capable of imparting drag reducing properties in liquid hydrocarbons.
摘要:
The process begins by obtaining a first batch of monomers selected from a group of acrylates with a molecular weight equal to or less than butyl acrylate and/or methacrylate with a molecular weight equal to or less than butyl methacrylate. A second batch of monomers is then selected from a group of acrylates with a molecular weight greater than butyl acrylate and/or methacrylate with a molecular weight greater than butyl methacrylate. A mixture is then prepared by mixing the first batch of monomers and the second batch of monomers, wherein the second batch of monomers are greater than 50% by weight of the mixture. Finally, the mixture is polymerized to produce an ultra high molecular weight polymer.
摘要:
A treatment composition for use in treating production fluids in or from a subterranean formation is provided. The treatment composition can be used for viscosity control in subsea umbilical fluid delivery applications, wherein the treatment composition exhibits desirable viscosity, flash point and/or pour point values.
摘要:
A cleaning solution for the removal of asphaltene deposits includes a first dispersant comprising a quaternary ammonium compound and a second dispersant comprising a pyridinium compound.
摘要:
A method and system for reducing viscosity in the crude oil and the empowerment of its dehydration process pass crude oil over a core that ionizes-polarizes the crude oil with an electrostatic charge. The metal bar core made of an alloy which includes, a weight of, 40-70% copper, 10-32% nickel, 15-40% zinc, 2-20% tin, and 0.05-10% silver. The metal bar core comprises a plurality of grooves, which allows crude oil to be agitated as it comes in contact with the core, activating an electrostatic charge. The electrostatic charge of the core creates a magnetic catalytic reaction that causes: (1) a molecular separation in the molecular chains within crude oil thereby lowering the viscosity and (2) stretches and twists caused by the molecular ionization-polarization of crude oil, causes that this release accordingly congenital or added water that is trapped in it, resulting in a potentiation of the dehydration of crude oil.
摘要:
A viscosity reducer based on vegetable extracts of natural origin is disclosed. The vegetable extracts include a mixture of phosphoglycerides and vegetable oils. A method of reducing the viscosity in heavy and extra heavy crude oil using the viscosity reducer is also disclosed. No aromatic base solvents are needed. A reduction in diluent usage is achieved using the viscosity reducer based on vegetable extracts. The viscosity reducer composition includes a mixture of phosphoglycerides, vegetable oil, non-aromatic solvent, polycyclic aromatic hydrocarbon and stabilizer.
摘要:
The present invention relates to a method and a device comprising a self-regulating pressure pipe for increasing a rate of a fluid flow of a fluid and configured to respond to the volume of the fluid or the viscosity of the fluid by decreasing or increasing the pressure within the self-regulating pressure pipe.