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Class Information
Number: 166/271
Name: Wells > Processes > Distinct, separate injection and producing wells > Including fracturing or attacking formation
Description: A process in which the earth is cracked to produce a fissure or fissures therein or in which fluid introduced into the pores of the earth chemically reacts with the earth or deposits in the earth to enlarge the pores.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8663371 Hydraulic fracturing truck sand baghouse Mar. 4, 2014
8613318 Flooding fluid and enhancing oil recovery method Dec. 24, 2013
8573251 Flow rate control valve Nov. 5, 2013
8496061 VDA/acid system for matrix acid stimulation Jul. 30, 2013
8491687 Hydraulic fracturing truck sand baghouse Jul. 23, 2013
8490695 Method for drilling and fracture treating multiple wellbores Jul. 23, 2013
8387688 Method of forming subterranean barriers with molten wax Mar. 5, 2013
8327935 Methods of use of a salt solution of monovalent and divalent cations in hydraulic fracturing Dec. 11, 2012
8307893 Method of improving waterflood performance using barrier fractures and inflow control devices Nov. 13, 2012
8302690 Method of drilling and opening reservoir using an oriented fissure to enhance hydrocarbon flow Nov. 6, 2012
8290632 Method for controlling production and downhole pressures of a well with multiple subsurface zones and/or branches Oct. 16, 2012
8261820 Drilling and opening reservoirs using an oriented fissure Sep. 11, 2012
8256511 Use of a heavy petroleum fraction as a drive fluid in the recovery of hydrocarbons from a subterranean formation Sep. 4, 2012
8173016 Mechanical flotation device for reduction of oil, alkalinity and undesirable gases May. 8, 2012
8122953 Drainage of heavy oil reservoir via horizontal wellbore Feb. 28, 2012
8104537 Method of developing subsurface freeze zone Jan. 31, 2012
8104535 Method of improving waterflood performance using barrier fractures and inflow control devices Jan. 31, 2012
7938185 Fracture stimulation of layered reservoirs May. 10, 2011
7913758 Oil well perforators and method of use Mar. 29, 2011
7789164 Kerogen extraction from subterranean oil shale resources Sep. 7, 2010
7770642 Methods for recovering oil from an oil reservoir Aug. 10, 2010
7651982 Methods and aqueous acid solutions for acidizing wells containing sludging and emulsifying oil Jan. 26, 2010
7647966 Method for drainage of heavy oil reservoir via horizontal wellbore Jan. 19, 2010
7647967 Drilling and opening reservoir using an oriented fissure to enhance hydrocarbon flow and method of making Jan. 19, 2010
7589050 Composition comprising a fully dissolved non-HF fluoride source and method for treating a subterranean formation Sep. 15, 2009
7584790 Method of isolating and completing multi-zone frac packs Sep. 8, 2009
7578968 Microbiological control in oil or gas field operations Aug. 25, 2009
7556095 Solution mining dawsonite from hydrocarbon containing formations with a chelating agent Jul. 7, 2009
7549470 Solution mining and heating by oxidation for treating hydrocarbon containing formations Jun. 23, 2009
7534745 Gelled invert emulsion compositions comprising polyvalent metal salts of an organophosphonic acid ester or an organophosphinic acid and methods of use and manufacture May. 19, 2009
7516787 Method of developing a subsurface freeze zone using formation fractures Apr. 14, 2009
7491682 Method of inhibiting or controlling formation of inorganic scales Feb. 17, 2009
7461694 Methods for recovering oil from an oil reservoir Dec. 9, 2008
7431090 Methods and apparatus for multiple fracturing of subterranean formations Oct. 7, 2008
7409911 Propellant for fracturing wells Aug. 12, 2008
7410934 Aqueous viscoelastic fluid Aug. 12, 2008
7228908 Hydrocarbon sweep into horizontal transverse fractured wells Jun. 12, 2007
7205264 Well treatment method using fluid containing lactic acid or salt thereof Apr. 17, 2007
7134492 Mapping fracture dimensions Nov. 14, 2006
RE39244 Acid gas disposal Aug. 22, 2006
7069990 Enhanced oil recovery methods Jul. 4, 2006
7066257 In situ recovery from lean and rich zones in a hydrocarbon containing formation Jun. 27, 2006
RE39077 Acid gas disposal Apr. 25, 2006
6915850 In situ thermal processing of an oil shale formation having permeable and impermeable sections Jul. 12, 2005
6886633 Bore hole underreamer May. 3, 2005
6776235 Hydraulic fracturing method Aug. 17, 2004
6722437 Technique for fracturing subterranean formations Apr. 20, 2004
6638896 Fluids and techniques for hydrocarbon well completion Oct. 28, 2003
6502633 In situ water and soil remediation method and system Jan. 7, 2003
6488087 Field development methods Dec. 3, 2002

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