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8167041 |
Apparatus and method for energy-efficient and environmentally-friendly recovery of bitumen
A system and method for energy-efficient and environmentally-friendly recovery of bitumen aims at recovering unconventional oil in an environmentally friendly and sustainable way that has the...
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8162568 |
Thermogenerator to remediate contaminated sites
A remediation system for decontaminating a polluted site that delivers a remediation fluid to the polluted site and receives a contaminated effluent from the polluted site. The system includes a...
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8151881 |
Permeability flow balancing within integral screen joints
A SAGD system in a formation including a heated fluid injection well having a tubular including permeability control, one or more open hole anchors restricting thermal growth of the tubular and one...
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8136590 |
Systems and methods for producing oil and/or gas
A system for producing oil and/or gas from an underground formation comprising a first array of wells dispersed above the formation; a second array of wells dispersed above the formation; wherein...
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8101556 |
Treatment fluids for reduction of water blocks, oil blocks, and/or gas condensates and associated methods
The present invention provides treatment fluids useful for subterranean operations, and more particularly, in at least one aspect, a treatment fluid that comprises a carrier fluid and a cationic...
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8101557 |
Unsaturated fatty acids and mineral oils as internal breakers for VES-gelled fluids
Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities reduced (gels broken) by the direct or indirect action of a synergistic internal breaker composition that contains...
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8066067 |
Apparatus and method for recovering fluids from a well and/or injecting fluids into a well
Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates...
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8033335 |
Offshore universal riser system
An offshore universal riser system (OURS) and injection system (OURS-IS) inserted into a riser. The OURS/OUR-IS provides a means for pressurizing the marine riser to its maximum pressure capability...
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8008236 |
Ortho ester breakers for viscoelastic surfactant gels and associated methods
Many methods are provided including a method comprising: providing a surfactant gel having a first viscosity that comprises an aqueous base fluid and a surfactant; providing an ortho ester breaker;...
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7985718 |
Use of surfactant mixtures for tertiary mineral oil extraction
The use of a surfactant mixture comprising at least one surfactant having a hydrocarbon radical composed of from 12 to 30 carbon atoms and at least one cosurfactant having a branched hydrocarbon...
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7977280 |
Process for minimizing breaking of emulsion type drilling fluid systems, emulsion type drilling fluid systems, and spotting fluids
A process for minimizing breaking of an emulsion type drilling fluid system comprising one or more fibrous lost circulation material, the process comprising: determining the water retention value...
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7963327 |
Method for dynamically assessing petroleum reservoir competency and increasing production and recovery through asymmetric analysis of performance metrics
Methods for accurately assessing the condition of a petroleum reservoir and designing and implementing a plan of action to increase production and recovery of petroleum from the reservoir....
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7964539 |
Well treatment
This invention provides a method of controlling water in a subterranean formation, said method comprising contacting said formation with a water control treatment agent which comprises an...
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7963329 |
Recovery and recycling of chemicals in chemical flooding process
A method including a) injecting into the formation an aqueous solution containing a polymer and a surfactant to create a organic phase and a aqueous phase, the surfactant being capable of reducing...
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7955420 |
System for separating carbon dioxide and hydrocarbon gas from a produced gas
Produced natural gas containing carbon dioxide is dehydrated and chilled to liquefy the carbon dioxide and then fractionated to produce a waste stream of liquid carbon dioxide and hydrogen sulfide....
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7942203 |
Thermal processes for subsurface formations
A process may include providing heat from one or more heaters to at least a portion of a subsurface formation. Heat may transfer from one or more heaters to a part of a formation. In some...
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7938182 |
Method for recovery of natural gas from a group of subterranean zones
A method for recovering natural gas from a group of subterranean zones containing natural gas, including injecting an amount of a displacing gas into a first subterranean zone, producing a first...
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7931082 |
Method and system for centralized well treatment
A method of servicing multiple well locations from a central location that includes the steps of configuring a central location for distribution of well development task fluids to centralized...
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7926561 |
Systems and methods for producing oil and/or gas
A system for producing oil and/or gas from an underground formation comprising a first array of wells dispersed above the formation; a second array of wells dispersed above the formation; wherein...
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7914606 |
System for separating a waste liquid and a hydrocarbon gas from a produced gas
Produced natural gas containing carbon dioxide is dehydrated and chilled to liquefy the carbon dioxide and then fractionated to produce a waste stream of liquid carbon dioxide and hydrogen sulfide....
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7890264 |
Waterflooding analysis in a subterranean formation
A method of analyzing a subterranean formation. The method includes specifying a volume of interest in the subterranean formation, specifying an injector wellsite that penetrates the volume of...
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7810565 |
Systems for extracting fluids from the earth's subsurface and for generating electricity without greenhouse gas emissions
An embodiment is an apparatus for generating a driver gas, for recovering fluid from the Earth's subsurface. The apparatus includes a fuel reformer, adapted to react a fuel with water to produce...
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7806186 |
Submersible pump with surfactant injection
A submersible pumping system for use downhole that includes a housing, a pump and gas separator within the housing, a motor for driving the pump and separator, and a foaming agent injection system....
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7802623 |
Method and a device for destruction of organic material in injection water
A method and a device (2) for destruction of organic material in injection water for an injection well (4), in which a means (10) for introduction of water in the injection well (4), and at least...
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7772161 |
Pre-engineered pills for the improvement of drilling muds
The invention relates to the use of pre-engineered pills for use with drilling mud. By introducing pills of ground elastomer into the well, the pills can improve the lubricity of the mud as well as...
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7753972 |
Portable apparatus for extracting low carbon petroleum and for generating low carbon electricity
The Portable Renewable Energy System for Enhanced Oil Recovery (“PRESEOR”) is a truck mobile system that reforms biomass into CO2 and hydrogen, following which the gases are separated, with the CO2...
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7721807 |
Method for managing hydrates in subsea production line
A method for managing hydrates in a subsea production system is provided. The system has at least one producing subsea well, a jumper for delivering produced fluids from the subsea well to a...
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7717175 |
Methods of improving heavy oil production
The invention provides an improved method for extracting heavy oil or bitumen contained in a reservoir. The invention involves directing the formation of a solvent fluid chamber through the...
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7707013 |
Method for estimating minimum miscibility enrichment
A method for estimating minimum miscibility enrichment (MME) for an injectant used in gas flooding of a reservoir at a given operating pressure comprising performing a plurality of slim tube...
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7703528 |
Reducing CO2 emissions from oilfield diesel engines
A method of reducing CO2 emission from a wellsite diesel engine includes the steps of: providing the wellsite diesel engine operatively coupled to a wellsite apparatus for transmission of power...
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7654330 |
Apparatus, methods, and systems for extracting petroleum using a portable coal reformer
Apparatus, methods, and systems for extracting oil or natural gas from a well using a portable coal reformer. In one example, the method may include reforming coal by reaction with water to...
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7654320 |
System and method for processing a mixture of hydrocarbon and CO2 gas produced from a hydrocarbon reservoir
A system and method is disclosed for treating a mixture of hydrocarbon and carbon dioxide gas produced from a hydrocarbon reservoir. The system includes a gas power turbine adapted to burn the...
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7650939 |
Portable and modular system for extracting petroleum and generating power
An embodiment is a portable, modular apparatus, having one or more modules, for recovering oil from an oil well and generating electric power, and including a chassis to support a fuel reformer, a...
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7648946 |
Methods of degrading filter cakes in subterranean formations
Methods of degrading filter cakes in subterranean formations are provided. An example of a method is a method of drilling a well bore in a subterranean formation. Another example of a method is a...
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7640980 |
Thermal processes for subsurface formations
A process may include providing heat from one or more heaters to at least a portion of a subsurface formation. Heat may transfer from one or more heaters to a part of a formation. In some...
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7624801 |
Control system and method for controlling a hybrid petroleum extractor/power generator
A control system and control method for controlling a modular apparatus for extracting petroleum and/or generating electricity based on subsurface data as well as market prices of electricity...
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7553800 |
In-situ filter cake degradation compositions and methods of use in subterranean formations
Improved in-situ filter cake degradation compositions for use in subterranean formations, well drill-in and servicing fluids including such in-situ filter cake degradation compositions, and methods...
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7527096 |
Methods of improving heavy oil production
The invention provides an improved method for producing heavy oil or bitumen in a reservoir. The invention involves directing the formation of a solvent fluid chamber through the combination of...
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7516795 |
Subsea petroleum production system method of installation and use of the same
A subsea petroleum production system for artificial lift, including a pumping module coupled to a flow base, the system being installed downstream of a Wet Christmas Tree (WCT) on the seabed. The...
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7506685 |
Apparatus and method for extracting petroleum from underground sites using reformed gases
Methods and apparatus for removing oil or natural gas from the ground. In one example, the method may include reforming a fuel source by reaction with water to generate driver gas, and injecting...
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7481275 |
Plant and a method for increased oil recovery
A method for increasing oil recovery from an oil reservoir by injection of gas into the reservoir, is described. The method comprises separation of air into an oxygen-rich fraction and a...
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7472747 |
Biological enhancement of hydrocarbon extraction
A method of microbial enhanced oil recovery for recovering oil from an oil-bearing rock formation is provided. The methodology uses a consortium of bacteria including a mixture of surfactant...
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7464760 |
Inhibiting reservoir souring using a treated injection water
A process for inhibiting souring in a hydrocarbon reservoir provides a feed water including a plurality of phosphorous constituents and having an elevated phosphorous concentration. At least some...
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7451814 |
System and method for producing fluids from a subterranean formation
The system of subterranean wells includes a subsurface flow line 20 having at least a portion within or underlining one or more subterranean formations 12. One or more drainage wells 26, 28, 30,...
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7426959 |
Systems and methods for producing oil and/or gas
A system including a mechanism for recovering oil and/or gas from an underground formation, the oil and/or gas comprising one or more sulfur compounds; a mechanism for converting at least a portion...
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7360595 |
Method and system for underground treatment of materials
A method for underground treatment of subsurface materials comprises providing an injection pattern and a recovery pattern, the injection pattern and the recovery pattern located proximate to a...
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7303006 |
Method for improved vertical sweep of oil reservoirs
In a WAG flood oil is displaced from a subterranean formation by injecting water alternately with gas into a single injection completion per pattern. The ratio of water to gas injected is the WAG...
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7299868 |
Method and system for recovery of hydrocarbons from a hydrocarbon-bearing information
A method and system for recovery of hydrocarbons from a hydrocarbon-bearing formation. A gaseous component of the produced hydrocarbon-containing fluid is separated from the fluid. The gaseous...
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7279447 |
Subterranean well and oil or gas stream treatment with bis(3-alkoxyalkan-2-ol) sulfides, sulfones, and sulfoxides: new surface active agents
Compositions containing surfactant compounds according to formula (I) ROCH2CH(OH)CR1R2ZCR1R2CH(OH)CH2OR, (I) wherein Z is S, SO, or SO2, can have a range of equilibrium and/or dynamic surface...
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7249634 |
Apparatus for production in oil wells
An apparatus uses at least one injection pump (9) positioned in proximity to an undersea petroleum well (10) to provide hydraulic fluid for hydraulic pumping equipment positioned in the bottom of...
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