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 (T.sub.g) 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.

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 (T.sub.g) 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.

Additive is introduced into a tubular that carries produced fluid from a wellhead; the additive addition prophylactically guards against damage to the tubular, such as from corrosion or oxidation. Gas from the wellhead is utilized as a pressure source for driving the additive into the tubular. The rate of additive injection is varied based on characteristics of the tubular or fluid in the tubular. Characteristics of the fluid in the tubular include iron content, residual additive, moisture content, and flowrate; characteristics of the tubular include its corrosion rate of the tubular. The characteristics are measured real time, measured historically, or predicted from a model.

Systems for facilitating fluid flow including a tubular segment having a length, a tube wall with a thickness, a tube wall exterior surface, and a tube wall interior surface. The tube wall interior surface defines a conduit configured to permit fluid flow along the length of the tubular segment. The tube wall may include a material configured to convey heat energy through the tube wall and at least one heating element coupled to an exterior surface of the tube wall along the length of the tubular segment, at least one heating element comprising an enabler material configured to receive electromagnetic energy, convert the electromagnetic energy into heat energy, and release the heat energy into the tube wall. The system may include a source of electromagnetic energy associated with the at least one heating element. The source of electromagnetic energy is configured to transmit electromagnetic energy into the heating element.

An apparatus includes a Polymer Thermal Expansion Based Passive Thermal Diode (PTE-PTD) that includes layers and is configured to provide passive heating and cooling of a pipeline. A polyurethane (PU) layer is provided that is configured to contact at least an upper portion along a length of a pipe. A polyethylene terephthalate (PET) layer is provided that is configured to surround the PU layer and the length of the pipe. A graphene layer is provided that is configured to surround an epoxy layer. An epoxy shell is provided that is configured to surround the graphene layer. An air gap on a first side of the PTE-PTD is provided. The air gap is formed by a void in the PET layer and is configured to provide additional air space between the PET layer and the PU layer. The air gap provides an upward movement of the PET layer using opposite forces of alternate sides of the PET layer. The PTE-PTD is installed on the pipeline.

The device for preventing the formation of paraffin and asphaltene sediments and for the reduction of the viscosity of crude oil for use at an eruptive oil well, an oil well with pumpjack or for use at a pipeline, the stated device including six identical serially connected modules. Each module has an inlet spout and outlet spout. Crude oil under pressure passes through modules and simultaneously is in contact with different alloys. The device's elements consist of four different alloys that affect the crude oil while it passes through modules under pressure in the manner that it prevents the formation of paraffin and asphaltene deposits inside the pipeline or eruptive oil wells or oil wells with pumpjacks.

The device for preventing the formation of paraffin and asphaltene sediments and for the reduction of the viscosity of crude oil for use at an eruptive oil well, an oil well with pumpjack or for use at a pipeline, the stated device including six identical serially connected modules. Each module has an inlet spout and outlet spout. Crude oil under pressure passes through modules and simultaneously is in contact with different alloys. The device's elements consist of four different alloys that affect the crude oil while it passes through modules under pressure in the manner that it prevents the formation of paraffin and asphaltene deposits inside the pipeline or eruptive oil wells or oil wells with pumpjacks.

The invention relates to agents reducing the hydrodynamic drag of a turbulent flow of petroleum products in the process of transportation in pipelines. The technical result of the solution involves the preservation of the polymer structure so that the polymer is more effective in reducing the hydrodynamic drag, grinding costs in the production of the DRA, the aggregation of the DRA while reducing the amount of the separating agent and the need to inject a smaller amount of the reagent to reduce the hydrodynamic drag. The specified technical result is produced due to the development of a reagent for reducing the hydrodynamic drag of hydrocarbon liquids in pipelines, which consists of the first and the second component, in which case the first component comprises the particles of polyalphaolefin or polyacrylate, the second component is an anti-agglomerating agent.

The invention relates to agents reducing the hydrodynamic drag of a turbulent flow of petroleum products in the process of transportation in pipelines. The technical result of the solution involves the preservation of the polymer structure so that the polymer is more effective in reducing the hydrodynamic drag, grinding costs in the production of the DRA, the aggregation of the DRA while reducing the amount of the separating agent and the need to inject a smaller amount of the reagent to reduce the hydrodynamic drag. The specified technical result is produced due to the development of a reagent for reducing the hydrodynamic drag of hydrocarbon liquids in pipelines, which consists of the first and the second component, in which case the first component comprises the particles of polyalphaolefin or polyacrylate, the second component is an anti-agglomerating agent.

A method for preparation of a reagent for reducing hydrodynamic drag of a turbulent flow of liquid hydrocarbons in pipelines, characterized by a high polymer content of at least 75 wt %, including mixing a 0.1-1.5 mm polymer reducing the hydrodynamic drag of a turbulent flow of liquid hydrocarbons with polymer non-solving solvents. The prepared product is a commodity form of the reagent with a high polymer content of at least 75 wt % used to reduce the hydrodynamic drag of the flow of liquid hydrocarbons in pipelines. The product prepared according to the described method is injected into the flow of hydrocarbon fluid transported through the pipeline using the injection apparatus that mechanically moves the product using a screw auger or screw feeder.