A method of transporting a mixed phase fluid in a conduit. A hydrate and/or wax film is permitted to deposit on an inner wall of the conduit in a conversion zone, the conversion zone being less than a length of the conduit. A quantity of heat is applied to the conduit in the conversion zone until the hydrate and/or wax deposited on the inner wall in the conversion zone separates therefrom, thereby inhibiting the continual formation of hydrates and/or wax on the inner wall. The separated hydrates and/or wax are flowed in the mixed phase fluid.

A method of transporting a mixed phase fluid in a conduit. A hydrate and/or wax film is permitted to deposit on an inner wall of the conduit in a conversion zone, the conversion zone being less than a length of the conduit. A quantity of heat is applied to the conduit in the conversion zone until the hydrate and/or wax deposited on the inner wall in the conversion zone separates therefrom, thereby inhibiting the continual formation of hydrates and/or wax on the inner wall. The separated hydrates and/or wax are flowed in the mixed phase fluid.

An aqueous drag reducer having the components of water, a hydrocarbon soluble rheology modifier and an ultra-high molecular weight polymer. This aqueous drag reducer is also soluble in hydrocarbons.

An aqueous drag reducer having the components of water, a hydrocarbon soluble rheology modifier and an ultra-high molecular weight polymer. This aqueous drag reducer is also soluble in hydrocarbons.

Method and system for clearing a pipe system from its contents, the pipe having a proximal end and a distal end, the method including providing an air supply to the pipe system at the proximal end by applying an air pressure decreasing from an initial pressure as the bulk of the pipe contents get discharged gradually at the distal end for obtaining a contents flow in the pipe system. The method further includes determining a volume of air supplied to the pipe system by the air supply, determining an estimated contents travel speed from the volume of the air supplied to the pipe and regulating the air supply to the proximal end of the pipe for obtaining a predetermined pipe contents travel speed using the estimated contents travel speed.

The present disclosure provides a system and method for odorizing natural gas flowing through a distribution pipeline. The system includes a bypass line adjacent to a distribution pipeline, wherein bypass gas flows through the bypass line and an odorant tank connected to the bypass line, and into the distribution pipeline; a high-flow control valve and a low-flow control valve in the bypass line, wherein bypass gas flows through the odorant tank into the distribution pipeline when the high-flow control valve or the low-flow control valve is open; and a programmable logic controller connected to the high-flow and low flow control valve; wherein the programmable logic controller opens the high-flow or low-flow control valve for a predetermined dwell time proportional to an amount of bypass gas needed to odorize gas in the distribution pipeline each time that a preselected quantity of gas flows through the distribution pipeline.

A method for inhibiting corrosion in pipelines for transporting oil and gas is described. A nano-machine is fed along with an inert gas to the pipeline to deliver a corrosion inhibitor which is chemically bonded to the nano-machine. The nano-machine is made by attaching a corrosion inhibitor to a nanoparticle by way of a covalent bond. When the nano-machine encounters a source of corrosion in the pipeline, the corrosion inhibitor is released to treat the corrosion.

A method for inhibiting corrosion in pipelines for transporting oil and gas is described. A nano-machine is fed along with an inert gas to the pipeline to deliver a corrosion inhibitor which is chemically bonded to the nano-machine. The nano-machine is made by attaching a corrosion inhibitor to a nanoparticle by way of a covalent bond. When the nano-machine encounters a source of corrosion in the pipeline, the corrosion inhibitor is released to treat the corrosion.

Compounds and compositions are used as corrosion inhibitors for pipelines for crude oil containing water with high salt concentrations. The inhibitors are ionic liquids, imidazoles, benzotriazoles, and mixtures thereof. The composition includes two or more members of the inhibitors with a solvent. The inhibitors reduce corrosion of metallic surfaces of the pipelines containing crude oil having 0.2 and 40 wt % water, 10,000 to 70,000 ppm salt, and 9 to 600 ppm hydrogen sulfide. A synergic effect is provided by two or more different inhibitors. This synergy is derived from interactions with the metallic surface, among themselves or with the corrosive medium depending on the chain length, to inhibit the corrosion with decrease of the formulation dose. The composition can be a ternary formulation of the three families or two components of one family and a third component of a different family.

Nanoparticles may be used in the formulation of long chain poly-alpha-olefins, commercially known as Drag Reducer Additives (DRA). These nanoparticles may be embedded in the original DRA formulation and/or added at some point in the pipeline application so they can then be used to destroy the DRA polymer by cleaving, interrupting or restructuring the DRA or otherwise breaking its bonds or to agglomerate or coagulate the polymer so it can be removed mechanically or chemically.