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Class Information
Number: 507/112
Name: Earth boring, well treating, and oil field chemistry > Earth boring > Contains organic component > Organic component is carbohydrate or derivative thereof (e.g., sugar or gum, such as galactomannan, xanthan, etc.) or carboxylic acid ester of an alcohol which has five or more hydroxy groups bonded directly to carbons > Carbohydrate is cellulose or derivative thereof
Description: Composition wherein said carbohydrate is cellulose or a derivative thereof.


Sub-classes under this class:

Class Number Class Name Patents
507/113 Carboxyalkylcellulose (e.g., cmc, cmhec, etc.) 99
507/114 Hydroxyalkylcellulose (e.g., hec, etc.) 113


Patents under this class:
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Patent Number Title Of Patent Date Issued
7622427 Ethoxylated raw cotton linters for completion and workover fluids Nov. 24, 2009
7612021 Methods and compositions utilizing lost-circulation materials comprising composite particulates Nov. 3, 2009
7553800 In-situ filter cake degradation compositions and methods of use in subterranean formations Jun. 30, 2009
7541316 Wellbore treatment fluids having improved thermal stability Jun. 2, 2009
7528095 Methods and compositions for improving the thermal stability of aqueous polymeric wellbore treatment fluids May. 5, 2009
7449430 Fluid loss reducer for high temperature high pressure water based-mud application Nov. 11, 2008
7427582 Internal breaker Sep. 23, 2008
7393407 Silicon oxide slurry and method for producing such slurry Jul. 1, 2008
7384892 Water-based drilling fluids Jun. 10, 2008
7323434 Electropositive production well treating fluid and method of preparing the same Jan. 29, 2008
7304019 Concentrated suspensions Dec. 4, 2007
7214647 Method of increasing the low shear rate viscosity of well drilling and servicing fluids containing calcined magnesia bridging solids, the fluids and methods of use May. 8, 2007
7211546 Method of increasing the low shear rate viscosity of well drilling and servicing fluids containing calcined magnesia bridging solids, the fluids and methods of use May. 1, 2007
7199083 Self-generating foamed drilling fluids Apr. 3, 2007
7199084 Concentrated suspensions Apr. 3, 2007
7131492 Divinyl sulfone crosslinking agents and methods of use in subterranean applications Nov. 7, 2006
7067461 Water-based drilling fluid additive containing graphite and carrier Jun. 27, 2006
7060660 Drilling fluid additive system containing talc and graphite Jun. 13, 2006
7050166 Calcium carbonate imaging technique May. 23, 2006
7018955 Drilling fluid, apparatus, and method Mar. 28, 2006
6908886 Annular fluids and method of emplacing the same Jun. 21, 2005
6884760 Water based wellbore fluids Apr. 26, 2005
6861392 Compositions for restoring lost circulation Mar. 1, 2005
6835697 Method to significantly reduce mounding on the seafloor Dec. 28, 2004
6825152 Method for creating dense drilling fluid additive and composition therefor Nov. 30, 2004
6818597 Suspensions of water soluble polymers in surfactant free non-aqueous solvents Nov. 16, 2004
6806231 Drilling fluid, apparatus, and method Oct. 19, 2004
6800593 Hydrophilic polymer concentrates Oct. 5, 2004
6794340 Method for removing drill cuttings from wellbores and drilling fluids Sep. 21, 2004
6784140 Thermally stable, substantially water-free well fluid Aug. 31, 2004
6774089 Water-based drilling fluid additive containing talc and cellulose Aug. 10, 2004
6737384 Drilling fluid additive system containing talc and cellulose May. 18, 2004
6620769 Environmentally acceptable fluid polymer suspension for oil field services Sep. 16, 2003
6586587 Ligand-modified cellulose products Jul. 1, 2003
6518223 Drilling fluid, apparatus, and method Feb. 11, 2003
6495493 Non-damaging drilling fluids Dec. 17, 2002
6451743 Stable liquid suspension compositions and method of making and use thereof Sep. 17, 2002
6348436 Fluid comprising cellulose nanofibrils and its use for oil mining Feb. 19, 2002
6342467 Method and composition for controlling fluid loss in high permeability hydrocarbon bearing formations Jan. 29, 2002
6303544 Modified cellulose products Oct. 16, 2001
6281172 Quaternary nitrogen containing amphoteric water soluble polymers and their use in drilling fluids Aug. 28, 2001
6258756 Salt water drilling mud and method Jul. 10, 2001
6221152 Stable suspension of hydrocolloids Apr. 24, 2001
6180572 Aqueous swellable compositions of guar gum and guar gum derivatives in oleophilic liquids and their use Jan. 30, 2001
6172010 Water-based foaming composition-method for making same Jan. 9, 2001
6054416 Drilling fluids comprising biodegradable heteropolyglycols Apr. 25, 2000
5955401 Clay-free biodegradable wellbore fluid and method for using same fluid Sep. 21, 1999
5951910 Reticulated bacterial cellulose as a rheological modifier for polyol fluid compositions Sep. 14, 1999
5908814 Drilling fluid additive and method for inhibiting hydration Jun. 1, 1999
5858928 Gel of an apolar medium, its use for the preparation of water-based drilling fluids Jan. 12, 1999

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