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7617869 |
Methods for extracting oil from tar sand
Hydrocarbon containing formations can be processed using an in-situ liquefaction technique. This new technique embodies systematic temperature elevation applied to subsurface formation allowing...
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7610962 |
Sour gas injection for use with in situ heat treatment
Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method for providing acidic gas to a subsurface formation is described herein. The method may...
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7608170 |
Method and apparatus to obtain high pressures for a continuous-flow pyrolysis reactor
The method enables the attainment of an open and continuous flow of an aqueous slurry containing carbonaceous solids into a high-pressure and high temperature environment which will result in the...
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7604064 |
Multi-stage, multi-phase unitized linear liquid entrained-phase transfer apparatus
An apparatus capable of receiving oil and gas from a recovery or other input source, compressing and/or pumping said oil and gas using multi-phase compressors with heat exchange means, and...
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7604054 |
Enhanced hydrocarbon recovery by convective heating of oil sand formations
The present invention involves a method and apparatus for enhanced recovery of petroleum fluids from the subsurface by convective heating of the oil sand formation and the heavy oil and bitumen in...
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7604052 |
Compositions produced using an in situ heat treatment process
Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method for producing hydrocarbons from a subsurface formation includes providing heat to the...
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7597147 |
Temperature limited heaters using phase transformation of ferromagnetic material
Systems, methods, and heaters for treating a subsurface formation are described herein. Systems and methods for making heaters are described herein. At least one heater includes a ferromagnetic...
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7597138 |
Ground water heat transfer systems and deployment thereof
The present invention features ground water heat transfer systems utilizing polypipes. A typical system of the invention comprises (1) a water pump which is suspended or affixed in a deep well and...
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7591310 |
Methods of hydrotreating a liquid stream to remove clogging compounds
A method includes producing formation fluid from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a gas stream. At least a portion of the...
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7581593 |
Apparatus for treating fluid streams
An apparatus and method for increasing and regulating temperature, pressure and fluid viscosities of fluid streams found in oil and gas production. Applicant's apparatus regulates and increases...
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7581592 |
System and method for the manufacture of fuel, fuelstock or fuel additives
A method and system is provided relating to the production of ethanol or other renewable bio-fuels on a mass, large scale basis while maintaining a positive energy balance. In one example, the...
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7575053 |
Low temperature monitoring system for subsurface barriers
A system for monitoring temperature of a subsurface low temperature zone is described. The system includes a plurality of freeze wells configured to form the low temperature zone, one or more...
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7575052 |
In situ conversion process utilizing a closed loop heating system
An in situ conversion system for producing hydrocarbons from a subsurface formation is described. The system includes a plurality of u-shaped wellbores in the formation. Piping is positioned in at...
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7571770 |
Downhole cooling based on thermo-tunneling of electrons
An apparatus for and a method of cooling electronic components in downhole equipment using the principles of quantum tunneling.
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7568526 |
Subterranean electro-thermal heating system and method
A subterranean electro-thermal heating system including one or more heater cable sections extending through one or more heat target regions of a subterranean environment and one or more cold lead...
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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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7562707 |
Heating hydrocarbon containing formations in a line drive staged process
Method for treating a hydrocarbon containing formation are described herein. Methods may include providing heat to a first section of the formation with one or more first heaters in the first...
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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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7559368 |
Solution mining systems and methods for treating hydrocarbon containing formations
A method for treating an oil shale formation comprising nahcolite is disclosed. The method includes providing a first fluid to a portion of the formation through at least two injection wells. A...
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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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7556096 |
Varying heating in dawsonite zones in hydrocarbon containing formations
A method for treating an oil shale formation comprising dawsonite includes assessing a dawsonite composition of one or more zones in the formation. Heat from one or more heaters is provided to the...
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7556095 |
Solution mining dawsonite from hydrocarbon containing formations with a chelating agent
A method for treating an oil shale formation comprising dawsonite includes providing heat from one or more heaters to the formation to heat the formation. Hydrocarbon fluids are produced from the...
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7546880 |
Extracting gas hydrates from marine sediments
A process for extracting hydrocarbon gases from marine sediment hydrates. In one embodiment, the process includes drilling from a sea floor into a hydrate rich subsea sediment to form at least one...
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7546873 |
Low temperature barriers for use with in situ processes
A method of forming and maintaining a low temperature zone around at least a portion of a subsurface treatment area is described. The method includes reducing a temperature of heat transfer fluid...
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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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7527101 |
Cooling apparatus and method
A device and method provide for cooling of a system having an energy source, one or more devices that actively consume energy, and one or more devices that generate heat. The device may include one...
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7527094 |
Double barrier system for an in situ conversion process
A barrier system for a subsurface treatment area is described. The barrier system includes a first barrier formed around at least a portion of the subsurface treatment area. The first barrier is...
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7516785 |
Method of developing subsurface freeze zone
A method for lowering the temperature of a portion of a subsurface formation is provided. Preferably, the formation is an oil shale formation. The method includes the step of injecting a cooling...
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7513306 |
Method for natural gas production
A method of dissociating methane hydrate deposits in-situ is provided in which a supply of oxygen, carbon dioxide, and fuel are provided, the oxygen and the carbon dioxide are mixed to form an...
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7510005 |
Controlling pressure and static charge build up within an annular volume of a welllbore
A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid comprising at least one...
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7510000 |
Reducing viscosity of oil for production from a hydrocarbon containing formation
Certain embodiments provide a method for treating a hydrocarbon containing formation. The method includes applying electrical current to one or more electrical conductors located in an opening in...
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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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7500528 |
Low temperature barrier wellbores formed using water flushing
A method of forming an opening for a low temperature well is described. The method includes drilling an opening in a formation. Water is introduced into the opening to displace drilling fluid or...
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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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7490665 |
Variable frequency temperature limited heaters
Certain embodiments provide a heating system configured to heat at least a part of a subsurface formation. The system includes an electrical power supply. A heater section includes one or more...
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7487834 |
Methods of using a laser to perforate composite structures of steel casing, cement and rocks
Apparatus and methods of using lasers are provided for the perforation of oil and gas well casings and rock formations. A rock removal process called laser spallation is provided that utilizes a...
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7484561 |
Electro thermal in situ energy storage for intermittent energy sources to recover fuel from hydro carbonaceous earth formations
The vast North American oil shale and tar sand deposits offer the potential to make USA energy independent. However, if these deposits were produced by the existing combustion processes,...
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7481274 |
Temperature limited heaters with relatively constant current
Certain embodiments provide a system configured to heat a subsurface formation. The system includes an electrical power supply. A heater section includes one or more electrical conductors...
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7475724 |
Method of determining a fluid inflow profile of wellbore
A method of determining a fluid inflow profile along the length of a permeable inflow region of an underground wellbore comprising:
transferring heat into or from the permeable inflow region...
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7467660 |
Pumped carbon mining methane production process
The invention is a continuous process for producing methane from an underground coal bed or an above ground carbon-containing resource using hydrogen as a recycling working fluid. For an...
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7467658 |
Down hole drilling fluid heating apparatus and method
An apparatus for providing heat energy to a fluid, including a housing adapted for connection into a working string and for inserting into a borehole, a flow path for the fluid extending within the...
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7455104 |
Expandable elements
A method and apparatus includes providing an element formed of a superplastic material to perform a predetermined downhole task. In another arrangement, a method and apparatus includes a flowable...
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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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7441602 |
Flowline insulation system
A method of controlling the heat transfer properties of a sub-sea conduit having inner and outer walls ( 800, 802 ) and a gas-permeable space ( 804 ) between the walls providing thermal insulation,...
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7441599 |
Controlling the pressure within an annular volume of a wellbore
A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to...
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7441597 |
Method and apparatus for in-situ radiofrequency assisted gravity drainage of oil (RAGD)
The present invention relates generally to the use of radiofrequency energy to heat heavy crude oil or both heavy crude oil and subsurface water in situ, thereby enhancing the recovery and handling...
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7440283 |
Thermal isolation devices and methods for heat sensitive downhole components
A device for isolating a heat sensitive component includes a heat sink positioned adjacent to the heat sensitive component. The heat sink has a stepped thermal response to an applied heat. The heat...
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7424915 |
Vacuum pumping of conductor-in-conduit heaters
Certain embodiments provide a method that includes placing a heater element in an opening in a subsurface formation. The heater element is in a conduit. A pressure is reduced inside the conduit to...
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7422063 |
Hydrocarbon recovery from subterranean formations
Recovery of viscous hydrocarbon by hot fluid injection into subterranean formations is assisted by using a specially designed and under-reamed vertical wellbore with multiple injection perforations...
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7407008 |
Weighted zero solids loss circulation, fluid loss and insulating annular space fluid systems
Loss circulation fluids contain aqueous based compositions having at least one alkali metal formate and at least one thermally activated self-crosslinkable gel forming material, wherein the...
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