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7635025 |
Cogeneration systems and processes for treating hydrocarbon containing formations
A system for treating a hydrocarbon containing formation includes a steam and electricity cogeneration facility. At least one injection well is located in a first portion of the formation. The...
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7631690 |
Heating hydrocarbon containing formations in a spiral startup staged sequence
Methods for treating a hydrocarbon containing formation are described herein. Methods may include treating a first zone of the formation. Treatment of a plurality of zones of the formation may be...
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7631706 |
Methods, systems and apparatus for production of hydrocarbons from a subterranean formation
Methods, systems, and apparatus that are suitable for use in production of hydrocarbons from subterranean heavy oil deposits employ a subterranean cavity in communication with a borehole. The...
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7631694 |
Downhole steam injection splitter
A modular steam injection line, for use in steam assisted gravity drainage (SAGD) operations for delivery of an equal steam mass flow along a length of the apparatus, incorporates steam splitter...
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7628204 |
Wastewater disposal with in situ steam production
Oil-contaminated clay dispersions in final tailings pond water from a bitumen extraction operation are used in downhole catalytic steam production for an in situ process such as SAGD to produce...
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7597144 |
Process for recovering heavy oil utilizing one or more membranes
An oil recovery process utilizes one or more membranes to remove silica and/or oil from produced water. In one method, the process includes separating oil from produced water and precipitating...
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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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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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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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7562706 |
Systems and methods for producing hydrocarbons from tar sands formations
A system for treating a tar sands formation is disclosed. A plurality of heaters are located in the formation. The heaters include at least partially horizontal heating sections at least partially...
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7562708 |
Method and apparatus for capture and sequester of carbon dioxide and extraction of energy from large land masses during and after extraction of hydrocarbon fuels or contaminants using energy and critical fluids
A closed loop system for increasing yield, reducing post process pollution, reducing energy consumed during and after extraction of fuels or contaminants in formations and for sequestering of...
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7559367 |
Temperature limited heater with a conduit substantially electrically isolated from the formation
A system for heating a hydrocarbon containing formation is described. A conduit may be located in an opening in the formation. The conduit includes ferromagnetic material. An electrical conductor...
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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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7540951 |
Integrated scheme of processes for extracting and treating an extra-heavy or bituminous crude
A process for preparation of synthetic crude from a deposit of heavy crude, comprises: (a) the extraction of heavy crude by technology using steam; (b) the separation of crude extract and water;...
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7540324 |
Heating hydrocarbon containing formations in a checkerboard pattern staged process
Method for treating a hydrocarbon containing formation are described herein. Methods may include providing heat to two or more first sections of the formation with one or more first heaters in two...
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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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7493953 |
Oilfield enhanced in situ combustion process
A process for improved safety and productivity when undertaking oil recovery from an underground reservoir by the toe-to-heel in situ combustion process employing a horizontal production well....
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7464756 |
Process for in situ recovery of bitumen and heavy oil
A process is described for in situ recovery of bitumen or heavy oil from a reservoir having a horizontal injection well and a horizontal production well. The process includes a first phase in which...
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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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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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7404439 |
Horizontal drilling
A method and apparatus for recovering viscous hydrocarbons from a subsurface reservoir holding the same using an essentially horizontal well bore having a production inlet and containing steam...
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7347264 |
Methods and compositions for well completion in steam breakthrough wells
Methods of steam flooding for stimulating hydrocarbon production are provided. In general, the methods comprise the steps of: (A) injecting a mutual solvent preflush fluid capable of dissolving oil...
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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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7314089 |
Method of wellbore pumping apparatus with improved temperature performance and method of use
Oil is recovered from a borehole using a pump having limited high temperature breakdown resistance. The pump is located in a borehole having a cooling zone, in which the temperature of the well...
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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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7090014 |
Process for sequentially applying SAGD to adjacent sections of a petroleum reservoir
Steam assisted gravity drainage (“SAGD”) is practised in a first section of a reservoir containing heavy oil. When steam/oil ratio rises sufficiently, steam injection into the first section is...
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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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7073577 |
Array of wells with connected permeable zones for hydrocarbon recovery
Hydrocarbons are recovered from a subterranean reservoir by drilling an injection well bore having an outlet in the reservoir and drilling a production well bore spaced apart from the injection...
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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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6988549 |
SAGD-plus
A combination of SAGD with cogeneration technology for exploiting shallow heavy oil and bitumen reservoirs under primary, secondary and tertiary thermal recovery. Superheated steam is generated by...
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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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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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6679326 |
Pro-ecological mining system
The invention comprises a high pressure fluid barrier forming an enclosure boundary with respect to overburden and floor strata separated by one or more production strata containing desirable...
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6591908 |
Hydrocarbon production process with decreasing steam and/or water/solvent ratio
A method for producing hydrocarbons from a subterranean formation comprises injecting a heated injection fluid composition into the formation. The heated injection fluid composition comprises at...
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6531516 |
Integrated bitumen production and gas conversion
An integrated gas conversion and bitumen production process utilizes steam and light hydrocarbons produced from a natural gas fed gas conversion process, to stimulate the bitumen production and...
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6446721 |
System and method for scheduling cyclic steaming of wells
The invention includes a method of scheduling cyclic steaming of a group of petroleum-containing wells including: inputting to a production-predicting means a group of data describing at least in...
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6412557 |
Oilfield in situ hydrocarbon upgrading process
A well configuration is provided comprising an injection well ( 102 ) completed relatively high in an oil reservoir ( 100 ) and a production well ( 103-106 ) completed relatively low in the...
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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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6357526 |
Field upgrading of heavy oil and bitumen
A process and system which integrates on-site heavy oil or bitumen upgrading and energy recovery for steam production with steam-assisted gravity drainage (SAGD) production of the heavy oil or...
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6263965 |
Multiple drain method for recovering oil from tar sand
A thermal method is described for recovering normally immobile hydrocarbon oil from a subsurface tar sand deposit. The procedure comprises: (a) establishing at least one substantially vertical...
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6257334 |
Steam-assisted gravity drainage heavy oil recovery process
A pair of vertically spaced, parallel, co-extensive, horizontal injection and production wells and a laterally spaced, horizontal offset well are provided in a subterranean reservoir containing...
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6189611 |
Radio frequency steam flood and gas drive for enhanced subterranean recovery
A method and system is provided for autogenic generation of a subterranean fluid flow, such as may be applied, for example, to enhance oil recovery or pollution abatement. In general, the method...
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6186232 |
Enhanced oil recovery by altering wettability
A process is disclosed for enhancing oil recovery in oil-containing reservoirs formed of water-wet sand. The process involves placing oil-wet sand in the near-bore region of a production well. The...
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6183162 |
Method for treating vapors and liquids recovered from a subsurface remediation process
A continuous process for removing organic contaminants from a subsurface formation. Including the steps of (a) injecting steam into the subsurface formation via an injection conduit, (b) removing a...
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6173775 |
Systems and methods for hydrocarbon recovery
A method has been invented for recovering hydrocarbons from an earth formation containing hydrocarbons, the method including injecting a recovery injectant into the earth formation at a plurality...
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6158517 |
Artificial aquifers in hydrologic cells for primary and enhanced oil recoveries, for exploitation of heavy oil, tar sands and gas hydrates
Artificial aquifers for hydrologic cells are used to recover hydrocarbons from carbonaceous formations. Artificial aquifers of a hydrologic cell for primary or enhanced oil recovery are constructed...
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6158510 |
Steam distribution and production of hydrocarbons in a horizontal well
A system for enhancing steam distribution in a thermal stimulation phase, and for reducing the production of particulate matter with hydrocarbon fluids in a production phase, has a base pipe with a...
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6070663 |
Multi-zone profile control
There is a provided an apparatus and process for multi-zone profile control in a well including a wellbore intersecting at least one production zone, at least one injection tube, at least one...
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