Matches 301 - 350 out of 385 < 1 2 3 4 5 6 7 8 >


Match Document Document Title Score
7950453 Downhole burner systems and methods for heating subsurface formations  
A gas burner assembly for heating a subsurface formation includes an oxidant conduit, a fuel conduit, and a plurality of oxidizers coupled to the oxidant conduit. At least one of the oxidizers...
96
8662175 Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities  
A method for treating a tar sands formation includes providing heat to at least part of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat is...
96
8146661 Cryogenic treatment of gas  
Systems and methods of treating a gas stream are described. A method of treating a gas stream includes cryogenically separating a first gas stream to form a second gas stream and a third stream....
96
7841425 Drilling subsurface wellbores with cutting structures  
A system for forming a wellbore includes a drill tubular. A drill bit is coupled to the drill tubular. One or more cutting structures are coupled to the drill tubular above the drill bit. The...
96
7866388 High temperature methods for forming oxidizer fuel  
A method of treating a formation fluid includes providing formation fluid from a subsurface in situ heat treatment process. The formation fluid is separated to produce a liquid stream and a first...
96
7832484 Molten salt as a heat transfer fluid for heating a subsurface formation  
A heating system for a subsurface formation includes a conduit located in an opening in the subsurface formation. An insulated conductor is located in the conduit. A material is in the conduit...
96
8459359 Treating nahcolite containing formations and saline zones  
A method for treating a nahcolite containing subsurface formation includes removing water from a saline zone in or near the formation. The removed water is heated using a steam and electricity...
96
9181780 Controlling and assessing pressure conditions during treatment of tar sands formations  
A method for treating a tar sands formation includes providing heat to at least part of a hydrocarbon layer in the tar sands formation from a plurality of heaters located in the formation. Heat is...
96
7644765 Heating tar sands formations while controlling pressure  
Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the...
96
7681647 Method of producing drive fluid in situ in tar sands formations  
Methods of treating a tar sands formation are described herein. Methods for treating a tar sands may include providing heat to at least part of a hydrocarbon layer in the formation from one or...
96
8272455 Methods for forming wellbores in heated formations  
A method for forming a wellbore in a heated formation includes flowing liquid cooling fluid to a bottom hole assembly in a wellbore in a heated formation. At least a portion of the liquid cooling...
96
8555971 Treating tar sands formations with dolomite  
A method for treating a karsted formation containing heavy hydrocarbons and dolomite includes providing heat to at least part of one or more karsted layers in the formation from one or more...
96
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...
96
7730946 Treating tar sands formations with dolomite  
Methods for treating a tar sands formation are described herein. The tar sands formation may include dolomite and hydrocarbons. Methods may include providing heat at less than the decomposition...
96
8636323 Mines and tunnels for use in treating subsurface hydrocarbon containing formations  
A system for treating a subsurface hydrocarbon containing formation includes one or more substantially horizontal or inclined tunnels extending from at least one shaft. One or more heater sources...
96
8536497 Methods for forming long subsurface heaters  
A method for forming a longitudinal subsurface heater includes longitudinally welding an electrically conductive sheath of an insulated conductor heater along at least one longitudinal strip of...
96
8113272 Three-phase heaters with common overburden sections for heating subsurface formations  
A heating system for a subsurface formation is described. The heating system includes three substantially u-shaped heaters with first end portions of the heaters being electrically coupled to a...
96
7866386 In situ oxidation of subsurface formations  
Methods and systems for treating a hydrocarbon containing formation described herein include providing heat to a first portion of the formation from a plurality of heaters in the first portion,...
96
8151907 Dual motor systems and non-rotating sensors for use in developing wellbores in subsurface formations  
A method for forming a subsurface wellbore is disclosed. The method includes operating a drilling string in a first direction of rotation. A first motor located near the end of the drilling string...
96
8162059 Induction heaters used to heat subsurface formations  
A heating system for a subsurface formation includes an elongated electrical conductor located in the subsurface formation. The electrical conductor extends between at least a first electrical...
96
8177305 Heater connections in mines and tunnels for use in treating subsurface hydrocarbon containing formations  
A system for treating a subsurface hydrocarbon containing formation includes one or more shafts. At least two substantially horizontal or inclined tunnels extend from one or more of the shafts. A...
96
7635024 Heating tar sands formations to visbreaking temperatures  
Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the...
96
8276661 Heating subsurface formations by oxidizing fuel on a fuel carrier  
A method of heating a portion of a subsurface formation includes drawing fuel on a fuel carrier through an opening formed in the formation. Oxidant is supplied to the fuel at one or more locations...
96
7677314 Method of condensing vaporized water in situ to treat tar sands formations  
Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the...
96
7730945 Using geothermal energy to heat a portion of a formation for an in situ heat treatment process  
Methods of using geothermal energy to treat subsurface formations are described herein. Methods for using geothermal energy to treat a subsurface treatment area containing or proximate to...
96
7841408 In situ heat treatment from multiple layers of a tar sands formation  
A method for treating a tar sands formation is disclosed. The method includes providing a drive fluid to a first hydrocarbon containing layer of the formation to mobilize at least some...
96
7066254 In situ thermal processing of a tar sands formation  
An in situ process for treating a tar sands 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 allowed...
96
7104319 In situ thermal processing of a heavy oil diatomite formation  
An in situ process for treating a diatomite 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 allowed...
96
7798220 In situ heat treatment of a tar sands formation after drive process treatment  
A method for treating a tar sands formation includes providing a drive fluid to a hydrocarbon containing layer of the tar sands formation to mobilize at least some hydrocarbons in the layer. At...
96
8191630 Creating fluid injectivity in tar sands formations  
Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters...
96
8196658 Irregular spacing of heat sources for treating hydrocarbon containing formations  
A method for treating a hydrocarbon containing formation includes providing heat input to a first section of the formation from one or more heat sources located in the first section. Fluids are...
96
7717171 Moving hydrocarbons through portions of tar sands formations with a fluid  
A method for treating a tar sands formation is disclosed. The method includes heating a first portion of a hydrocarbon layer in the formation from one or more heaters located in the first portion....
96
7677310 Creating and maintaining a gas cap in tar sands formations  
Methods for treating a tar sands formation are disclosed herein. Methods for treating a tar sands formation may include providing heat to at least part of a hydrocarbon layer in the formation from...
96
7703513 Wax barrier for use with in situ processes for treating formations  
Methods for forming a barrier around at least a portion of a treatment area in a subsurface formation are described herein. A material including wax may be introduced into one or more wellbores....
96
8233782 Grouped exposed metal heaters  
A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more...
96
8881806 Systems and methods for treating a subsurface formation with electrical conductors  
A system for treating a subsurface formation includes a wellbore at least partially located in a hydrocarbon containing formation. The wellbore includes a substantially vertical portion and at...
96
9129728 Systems and methods of forming subsurface wellbores  
A system for forming a subsurface wellbore includes a rack and pinion system including a chuck drive system. The chuck drive system operates a drilling string. An automatic position control system...
96
8267170 Offset barrier wells in subsurface formations  
A plurality of first barrier wells are formed in a formation for a first barrier. A substantially constant spacing separates adjacent first barrier wells. The formation is analyzed to determine...
96
9051829 Perforated electrical conductors for treating subsurface formations  
A system for treating a subsurface formation includes a plurality of conduits at least partially located in a portion of a hydrocarbon containing formation. At least part of two of the conduits...
96
8220539 Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation  
An in situ heat treatment system for producing hydrocarbons from a subsurface formation includes a plurality of wellbores in the formation. At least one heater is positioned in at least two of the...
96
8256512 Movable heaters for treating subsurface hydrocarbon containing formations  
A method for treating a hydrocarbon containing formation includes providing heat to a first portion of the formation using a heater. The heating section of the heater is at least partially located...
96
8267185 Circulated heated transfer fluid systems used to treat a subsurface formation  
A method for heating a subsurface formation includes applying heat from a plurality of heaters to at least a portion of the subsurface formation. A portion of one or more of the heaters are...
96
8353347 Deployment of insulated conductors for treating subsurface formations  
A method for making a coiled insulated conductor heater to heat a subsurface formation includes pushing the insulated conductor heater longitudinally inside a flexible conduit using pressure. One...
96
9022118 Double insulated heaters for treating subsurface formations  
A heater includes a conduit and three insulated electrical conductors located in the conduit. At least one of the three insulated conductors includes an electrical conductor at least partially...
96
8261832 Heating subsurface formations with fluids  
A method of treating a hydrocarbon formation includes providing heat to the hydrocarbon formation from a plurality of heaters. The heat transfers from the heaters so that at least a section the...
96
8281861 Circulated heated transfer fluid heating of subsurface hydrocarbon formations  
A method of heating a subsurface formation includes introducing a molten salt into a first passageway of a conduit-in-conduit heater at a first location. The molten salt is passed through the...
96
7360588 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...
95
7077198 In situ recovery from a hydrocarbon containing formation using barriers  
A method is described for inhibiting migration of fluids into and/or out of a treatment area undergoing an in situ conversion process. Barriers in the formation proximate a treatment area may be...
95
7156176 Installation and use of removable heaters in a hydrocarbon containing formation  
In an embodiment, a system may be used to heat a hydrocarbon containing formation. The system may include a heater placed in an opening in the formation. The system may allow heat to transfer from...
95
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...
95


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