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7582590 |
Subterranean treatment fluids, friction reducing copolymers, and associated methods
Methods of treating a portion of a subterranean formation comprising: providing an aqueous treatment fluid comprising an aqueous fluid and a friction reducing copolymer that comprises acrylamide...
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7504366 |
Subterranean treatment fluids, friction reducing copolymers, and associated methods
Methods of treating a portion of a subterranean formation, comprising: providing an aqueous treatment fluid comprising water, and a friction reducing copolymer that comprises acrylamide and an...
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7479216 |
Fischer-Tropsch wax composition and method of transport
The present invention relates to transportable product for the transportation of paraffinic wax and methods of transporting using this transportable product. The transportable product comprises 90...
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7458384 |
Surfactant incorporated nanostructure for pressure drop reduction in oil and gas lines
Nano-sized rare earth metal oxide particles are prepared from aqueous reverse micelles. The engineered nanoparticles have large surface area to volume ratios, and uniformly incorporate a surfactant...
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7452390 |
Controlled superheating of natural gas for transmission
A method is provided for controlling superheating and temperature of a compressed natural gas stream and the addition of a corrision inhibitor composition for transmission through a pipeline that...
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7395864 |
Method and apparatus for preventing slug flow in pipelines
Disclosed is a method and system for controlling the formation of liquid or gas slugs along a pipeline. In embodiments, an injection unit injects a liquid surface tension reducing agent, such as a...
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7389787 |
Closed loop additive injection and monitoring system for oilfield operations
A system is provided that monitors at the wellsite injection of additives into formation fluids recovered through wellbores and controls the supply of such additives from remote locations. The...
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7344648 |
Use of silicones for causing or facilitating the flow of dispersions of solid particulates in liquids
A method for causing or facilitating the flow of dispersions of solid particulates in liquids, having characteristics of high viscosity or resistance to flow, with particular reference to sludges...
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7314567 |
Method for transferring heterogeneous liquids in microchannels without the occurrence of mixing
In the method for mixing-free transport of homogeneous liquids in microchannels a heterogeneous liquid flow ( 14 ) is autonomously divided into portions, transported over a distance and then...
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7297823 |
Additives for inhibiting the formation of gas hydrates
The invention relates to the use of polymers which contain between 1 and 99 mol-% structural units of formula 1,
wherein R 1 represents hydrogen or C 1 -C 6 alkyl, R 2 represents C 1 -C 24...
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7287540 |
Method for introducing drag reducers into hydrocarbon transportation systems
Disclosed is a method of reducing drag in a fluid stream. The method includes admixing the components of a drag reducer to form an incipient drag reducer and injecting the incipient drag reducer...
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7261118 |
Method and vessel for the delivery of precursor materials
Vessel and method for the production and delivery of a precursor-containing fluid stream comprising the gaseous phase of a precursor material are disclosed herein. In one aspect, there is provided...
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7216660 |
Method and device for controlling liquid flow on the surface of a microfluidic chip
The invention is directed to a method and device for routing, mixing, or reacting droplets or liquid microstreams along the surface of a flat substrate. The flow of liquid microstreams or...
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7205262 |
Friction reducing composition and method
Water soluble nonionic friction reducers and added to coacervate gels having excellent shear viscosities and other properties. A preferred gel comprises poly diallyl dimethyl ammonium chloride, a...
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7188639 |
Storage tank for easily polymerizable compound and method of storage
A storage tank for an easily polymerizable compound has acceptance piping and delivery piping with a circulation line directly connecting the acceptance piping to the delivery piping or with...
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7183239 |
Gel plugs and pigs for pipeline use
Coacervate gels having excellent shear viscosities and other properties are made with anionic or cationic polymers, a smaller amount of a surfactant having a charge opposite that of the polymer,...
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7164051 |
Gas hydrate inhibitors
A method for inhibiting formation of hydrocarbon hydrates in mixtures of water and a hydrate-forming guest molecule involves adding a reaction product to the mixtures in an effective amount to...
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7162057 |
Apparatus for and method of monitoring particulate material in a fluid
Apparatus for monitoring particulate material in a fluid comprising a passageway ( 17 ), through which fluid to be monitored is passed, at least a portion ( 24 ) of the boundary of the passageway (...
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7137401 |
Drag reduction using maleated fatty acids
Non-polymeric drag reducing agents in the form of maleated fatty acids and the esters thereof and the organic, inorganic or amine salts thereof are described herein. These additives are useful to...
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7128081 |
Peltier based freeze-thaw valves and method of use
A freeze-thaw valve is provided using a Peltier heat pump where the thermal short-circuit path between a cooled thermal mass and a heated thermal mass is reduced or absent and the valve state...
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7119132 |
Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents
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)...
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7094379 |
Device for parallel and synchronous injection for sequential injection of different reagents
The invention relates to a microfluidic device for injecting series of mobile reaction chambers ( 102, 103 ) having non-miscible segmenters ( 101 ) in micro-channels ( 21 to 26 ), comprising:
...
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7094331 |
Viscosity modification of heavy hydrocarbons using dihydric alcohols
A low viscosity, high softening point heavy hydrocarbon material having a viscosity reducing amount of at least one dihydric alcohol dissolved therein, and a method for producing such heavy...
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7086465 |
In situ production of a blending agent from a hydrocarbon containing formation
An in situ process for treating a hydrocarbon containing formation is provided. The process may include providing heat from one or more heaters to at least a portion of the formation. The heat may...
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7025077 |
Heat exchanger for instant warm water
A method and apparatus for providing heated water to a hot water supply line positioned intermediate a hot water supply and a faucet.
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7012046 |
Drag reducing agent slurries having alfol alcohols and processes for forming drag reducing agent slurries having alfol alcohols
A composition including a polyalphaolefin and at least one alfol alcohol that function as drag reducing agent slurries and a process for the preparation of the drag reducing agent slurries are...
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7007709 |
Microfluidic device and manufacture thereof
The present invention relates to microfluidic devices and to their method of manufacture. The microfluidic devices are original by their specific structure (of sandwich type) and by the materials...
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6988506 |
Fluid transfer system
A portable fluid transfer conduit is disclosed having an elongated flexible conduit having an inlet and outlet port. A coupling is postured at the inlet port for receiving fluid from a fluid source...
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6986358 |
Method and composition to decrease iron sulfide deposits in pipe lines
The levels of iron sulfide present in a conduit, such as a pipeline, are reduced by contacting the conduit, on an inner surface, with a composition obtained from an aqueous solution containing at...
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6981848 |
Methanol injection system and method to prevent freezing of a natural gas pipeline
A system for injecting an injection fluid into a pipeline includes an injection pump, a timer for initiating sequencing of the pump, a control valve for controlling the flow of pressurized fluid to...
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6948562 |
Production of a blending agent using an in situ thermal process in a relatively permeable formation
A method for treating a relatively permeable formation containing heavy hydrocarbons in situ may include providing heat from one or more heat sources to a selected section of the formation. The...
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6905605 |
Method for inhibiting the plugging of conduits by gas hydrates
A method for inhibiting hydrate formation in a hydrocarbon flow by adding an amount of a dendrimeric compound effective to inhibit formation of hydrates at conduit temperatures and pressures, and...
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6899115 |
Method and filling station for filling a motor vehicle with gaseous fuel
The invention relates to a method and a filling station for filling a motor vehicle with gaseous fuel. The fuel is compressed, stored temporarily and expanded in the fuel tank of said vehicle. The...
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6851444 |
Closed loop additive injection and monitoring system for oilfield operations
A system is provided that monitors at the wellsite injection of additives into formation fluids recovered through wellbores and controls the supply of such additives from remote locations. A pump...
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6846365 |
Method and apparatus for acoustic suppression of cavitation
The invention provides a method and apparatus for suppressing hydrodynamic cavitation through the use of high frequency (>500 kHz) and high amplitude (>1 atmospheres) acoustic energy. The...
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6799595 |
Meltable and reclosable drain plug for molten salt reactor
An apparatus and method for selectively draining melt material, such as molten salt, utilizes an unobstructed drain conduit detachably connected, as by screw threads, to a vessel containing the...
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6774276 |
Method and system for transporting a flow of fluid hydrocarbons containing water
A method of transporting a flow of fluid hydrocarbons containing water through a treatment and transportation system including a pipeline, wherein the flow of fluid hydrocarbons is introduced into...
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6732766 |
Pipe comprising a porous inner wall
Pipe ( 1 ) for conveying a fluid. It comprises a metal tube ( 2 ). The inner wall of the metal tube is coated with a layer ( 3 ) of a porous material permeable to the fluid conveyed. The fluid...
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6718789 |
Pipe freezer with defrost cycle
A compact, inexpensive pipe freezer with defrost cycle for forming a frozen ice plug in a section of pipe to be repaired, and, after the repair operation has been completed, defrosting the pipe...
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6708709 |
Method of regulating a steam injector
The disclosure relates to a method of regulating a steam injector. The injector is of the type which has an inlet for steam and an inlet for the product which is to be heat-treated, as well as an...
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6695009 |
Microfluidic methods, devices and systems for in situ material concentration
Methods of concentrating materials within microfluidic channel networks by moving materials into regions in which overall velocities of the material are reduced, resulting in stacking of the...
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6679279 |
Fluidic valve having a bi-phase valve element
A fluidic valve ( 125, 300, 500, 900, 1000, 1100, 1200, 1300 ) switches a state of flow of a fluid in a fluid communication channel of a fluid guiding structure ( 505 ). Heating a bi-phase valve...
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6677388 |
Wax transport composition
Wax in water emulsions prepared from Fischer-Tropsch derived waxes, Fischer-Tropsch process water, and two alkyl ethoxylated phenol nonionic surfactants having different hydrophilic-lipophilic...
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6666269 |
Method and apparatus for producing fluid from a well and for limiting accumulation of sediments in the well
An electric submersible pumping system provides for the production of fluids from a well and for limiting the amount of sediment accumulation in the well. The apparatus includes an electric...
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6649670 |
Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents
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)...
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6644334 |
Method and system for reducing the viscosity of crude oil employing engine exhaust gas
A method and system for treating crude oil to improve its flowability includes operating an internal combustion engine to produce exhaust gas, reducing the temperature of the exhaust gas, injecting...
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6596832 |
Polymer compositions useful as flow improvers in cold fluids
A drag-reducing polymer capable of dissolving even in cold fluids is described, along with a method for manufacturing said drag-reducing polymer. The drag-reducing polymer has at least one...
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6582591 |
Process for the transportation of naphtha in a crude oil pipeline
This process for the transportation of a batch of naphtha in a pipeline, the prime purpose of which is to transport crude oil, is characterized in that the batch of naphtha, bracketed by batches of...
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6578596 |
Apparatus and method for thermoplastic extrusion
An apparatus and method for controlling the extrusion of thermoplastic through one or more discharge orifices is described. An apparatus comprises one or more thermally conductive flow tubes...
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6557575 |
Fluid flow control freeze/thaw valve for narrow bore capillaries or microfluidic devices
Methods and devices for the management of fluid flow within nanoscale analytical systems, comprising a freeze thaw valve having differing geomentries to constrict a frozen plug within the freeze...
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