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7621333 |
Process to improve extraction of crude oil and installation implementing such process
A hydrocarbon extraction process enabling an acceleration in the production of the productive zone of the oil deposit of a well and an increase in the cumulated quantity of hydrocarbons,...
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7611208 |
Methods for constructing underground borehole configurations and related solution mining methods
Disclosed are methods for solution mining of evaporite minerals, such as trona, comprising drilling an access well and at least two lateral boreholes; injecting a fluid; circulating the fluid...
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7603261 |
Method for predicting acid placement in carbonate reservoirs
A computationally efficient general method of modeling or simulating matrix acidizing treatment when flow is not axisymmetric involves determining streamlines in the general flow field using...
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7591311 |
Process for recovering heavy oil
A method for recovering oil includes recovering an oil-water mixture from a well and separating oil from the oil-water mixture to produce an oil product and produced water. The produced water is...
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7591309 |
Method for production of high pressure steam from produced water
An evaporation based method for generation of high pressure steam from produced water in the heavy oil production industry. De-oiled produced water is processed through a high pH/high pressure...
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7591306 |
Enhanced hydrocarbon recovery by steam injection of oil sand formations
The present invention involves a method and apparatus for enhanced recovery of petroleum fluids from the subsurface by injection of a steam and hydrocarbon vaporized solvent in contact with the oil...
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7578345 |
Process for recovering heavy oil using multiple effect evaporation
A method for recovering heavy oil including recovering an oil-water mixture from a well and separating oil from the oil-water mixture to produce an oil product and produced water. The produced...
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7556099 |
Recovery process
A method for recovering hydrocarbons from a subterranean reservoir by operating a first injector-producer well pair under a substantially gravity-controlled recovery process, the first...
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7500517 |
Kerogen extraction from subterranean oil shale resources
The present invention is directed to methods for extracting a kerogen-based product from subsurface (oil) shale formations, wherein such methods rely on fracturing and/or rubblizing portions of...
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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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7448447 |
Real-time production-side monitoring and control for heat assisted fluid recovery applications
An automatic control system that protects downhole equipment and surface equipment from high temperatures resulting from the breakthrough of injection vapor. The system operates to derive an...
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7445041 |
Method and system for extraction of hydrocarbons from oil shale
A system and method for extracting hydrocarbon products from oil shale using nuclear energy sources for energy to fracture the oil shale formations and provide sufficient heat and pressure to...
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7441603 |
Hydrocarbon recovery from impermeable oil shales
An economic method for in situ maturing and production of oil shale or other deep-lying, impermeable resources containing immobile hydrocarbons. Vertical fractures are created using horizontal or...
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7424916 |
Flameless hot oiler
A flameless heating system comprising: at least one engine, each engine including a coolant for removing heat from the engine and each engine producing exhaust; a loading means for loading the...
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7422059 |
Fluid injection stimulated heavy oil or mineral production system
A method and apparatus for production of material from a subsurface earth formation being intersected by a wellbore that is lined with a well casing. After preparing the well casing by forming...
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7410627 |
Sodium carbonate and sodium bicarbonate production
A method for solution mining nahcolite, capable of extracting nahcolite from geological formations lean in nahcolite comprising injecting high pressure water (which may include recycled aqueous...
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7367399 |
Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore
Systems and methods are provided for treating a wellbore using a loop system to heat oil in a subterranean formation contacted by the wellbore. The loop system comprises a loop that conveys a fluid...
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7363973 |
Method and apparatus for stimulating heavy oil production
A process for the recovery of hydrocarbons from a hydrocarbon bearing formation having an extraction chamber where the extraction chamber has an extraction surface. The process has the steps of...
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7350577 |
Method and apparatus for injecting steam into a geological formation
The present invention generally provides a method and apparatus for injecting a compressible fluid at a controlled flow rate into a geological formation at multiple zones of interest. In one...
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7347266 |
Use of mineral oils, hydrogenated polyalphaolefin oils and saturated fatty acids for breaking ves-gelled fluids
Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities reduced (gels broken) by the direct or indirect action of a breaker composition that contains at least one mineral...
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7341102 |
Flue gas injection for heavy oil recovery
A variety of methods for thermal recovery of natural gas and bitumen from a formation containing the latter. In general, the methods incorporate a series of existing, but previously uncombined...
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7299879 |
Thermodynamic pulse lift oil and gas recovery system
An apparatus and process for lifting production fluids using the heat of compression of production gas to heat injection liquids. An apparatus and process for uninterrupted production using...
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7216712 |
Treatment of oil wells
Hydrocarbon solids are removed from an oil well by feeding into the oil well a composition comprising at least 40 vol. % dense phase carbon dioxide and at least 30 vol. % of a C 1 –C 3 alkanol...
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7150320 |
Water treatment method for heavy oil production
A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. If necessary, the pH is then...
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7100994 |
Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation
A method for treating a hydrocarbon containing formation is provided. In one embodiment, heat from one or more heaters may be provided to at least a portion of the formation. Heat may be allowed to...
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7093655 |
Method for the recovery of hydrocarbons from hydrates
A method for recovering hydrocarbon trapped in a hydrate formation, comprising the steps of (a) contacting the hydrate formation with an aqueous solution comprising from 10% to 75% by weight of a...
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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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7077199 |
In situ thermal processing of an oil reservoir formation
An in situ process for treating an oil 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 be...
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7037434 |
Integrated water treatment and flue gas desulfurization process
A water stream containing hardness minerals is subjected to a water treatment process using an alkali agent to precipitate the hardness minerals and to produce a softened water stream is used to...
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7032675 |
Thermally-controlled valves and methods of using the same in a wellbore
Methods of operating a downhole tool comprise thermally-controlling the tool by sensing a temperature and controlling the tool in response to the sensed temperature. Thermally-controlled downhole...
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7017661 |
Production of synthesis gas from a coal formation
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H 2 , and/or other formation fluids may be produced from the formation. Heat may be applied to the...
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6997518 |
In situ thermal processing and solution mining of an oil shale formation
An oil shale formation may be treated using an in situ thermal process. Heat may be provided to the treatment area. Fluids may be injected into the formation to remove a component within the...
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6987083 |
Xanthan gels in brines and methods of using such xanthan gels in subterranean formations
Xanthan gels hydratable in brine, methods of making these xanthan gels, and methods of using these compositions in subterranean formation applications, such as gravel packing, are provided herein.
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6966374 |
In situ thermal recovery from a relatively permeable formation using gas to increase mobility
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 portion of the formation. The heat may be...
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6955221 |
Active heating of thermally insulated flowlines
Hydrocarbon liquids are transported from a subsea welihead to an above-surface hydrocarbon processing facility along a pipe-in-pipe flowline. The flowline is a pipe placed coaxially within an outer...
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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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6932155 |
In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well
A process for producing hydrocarbons through a heater wellbore positioned in a hydrocarbon containing formation. The in situ treatment process may include providing heat from one or more heaters to...
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6896054 |
Microorganism enhancement with earth loop heat exchange systems
A wellbore method which, in certain aspects, includes providing a fluid with microorganisms and introduction apparatus for introducing the fluid into an earth formation bearing hydrocarbons to...
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6877555 |
In situ thermal processing of an oil shale formation while inhibiting coking
An oil shale formation may be treated using an in situ thermal process. Heat may be provided to a portion of the formation. Heat may be allowed to transfer from one or more heat sources to a...
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6779606 |
Method and apparatus for heating drilling and/or completion fluids entering or leaving a well bore during oil and gas exploration and production
A system for heating drilling, completion, and/or stimulation fluids including acidizing liquids but not limited to; entering or exiting a wellbore, the system including a principal heat exchange...
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6752208 |
Methods of reducing proppant flowback
Methods of reducing proppant flowback during production of fluids form subterranean formations are provided. Compressed sieves made from a shape memory material are introduced into hydraulic...
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6739394 |
Production of synthesis gas from a hydrocarbon containing formation
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H 2 , and/or other formation fluids may be produced from the formation. Heat may be...
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6722436 |
Apparatus and method for operating an internal combustion engine to reduce free oxygen contained within engine exhaust gas
A method and apparatus for controlling the operation of an internal combustion engine to reduce the presence of free oxygen in the exhaust gas of the engine. The method and apparatus provides for...
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6708759 |
Liquid addition to steam for enhancing recovery of cyclic steam stimulation or LASER-CSS
LASER-CSS provides a method to improve cyclic steam-based thermal recovery methods for heavy oils and bitumen. A key improvement over prior art consists of mixing liquid hydrocarbons into the...
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6554067 |
Well completion process for formations with unconsolidated sands
A method for consolidating sand around a well, involving injecting hot water or steam through well casing perforations in to create a cement-like area around the perforation of sufficient rigidity...
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6540023 |
Process for producing a diesel fuel stock from bitumen and synthesis gas
A process for producing a diesel fuel stock from bitumen uses steam, naphtha and a hydroisomerized diesel fraction produced by a gas conversion process, to respectively (i) stimulate the bitumen...
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6491096 |
Two phase heat generation system and method
The present invention provides a two phase heat generation system ( 10 ) having a primary pressure vessel ( 108 ), an, interior vessel ( 122 ) spaced from the primary pressure vessel ( 108 )...
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6387278 |
Increasing subterranean mobilization of organic contaminants and petroleum by aqueous thermal oxidation
In situ hydrous pyrolysis/partial oxidation of organics at the site of the organics constrained in an subsurface reservoir produces surfactants that can form an oil/water emulsion that is...
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6383261 |
Process for management of industrial wastes
The present invention provides a process for the management of H 2 S containing gas streams and high alkalinity water streams in which process the H 2 S is selectively removed from the gas stream...
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6338381 |
Heat exchange systems
A system for heating or cooling a wellhead, the system including a header in fluid communication via a pipe with a wellhead so that header heat transfer fluid is flowable from the header to the...
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