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Class Information
Number: 507/115
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 hydroxyalkyl ether derivative (e.g., hpg, etc.)
Description: Composition wherein said carbohydrate derivative is a hydroxyalkyl ether carbohydrate (e.g., hydroxypropylguar (HPG), etc.).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7304019 |
Concentrated suspensions |
Dec. 4, 2007 |
| 7147067 |
Zeolite-containing drilling fluids |
Dec. 12, 2006 |
| 6884760 |
Water based wellbore fluids |
Apr. 26, 2005 |
| 6818597 |
Suspensions of water soluble polymers in surfactant free non-aqueous solvents |
Nov. 16, 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 |
| 6737385 |
Well drilling and servicing fluids and methods of removing filter cake deposited thereby |
May. 18, 2004 |
| 6620769 |
Environmentally acceptable fluid polymer suspension for oil field services |
Sep. 16, 2003 |
| 6586587 |
Ligand-modified cellulose products |
Jul. 1, 2003 |
| 6454005 |
Treating shale and clay in hydrocarbon producing formations with combinations of guar and potassium formate |
Sep. 24, 2002 |
| 6451743 |
Stable liquid suspension compositions and method of making and use thereof |
Sep. 17, 2002 |
| 6281172 |
Quaternary nitrogen containing amphoteric water soluble polymers and their use in drilling fluids |
Aug. 28, 2001 |
| 6054416 |
Drilling fluids comprising biodegradable heteropolyglycols |
Apr. 25, 2000 |
| 5981447 |
Method and composition for controlling fluid loss in high permeability hydrocarbon bearing formations |
Nov. 9, 1999 |
| 5849674 |
Compositions and processes for oil field applications |
Dec. 15, 1998 |
| 5808052 |
Use of cellulose mixed ethers as additives for earth pressure shields |
Sep. 15, 1998 |
| 5785747 |
Viscosification of high density brines |
Jul. 28, 1998 |
| 5710108 |
Biopolymer/oil suspension compositions utilized in aqueous-based fluids used in the oil service industry including completion and drilling fluids |
Jan. 20, 1998 |
| 5602082 |
Efficiency of ethoxylated/propoxylated polyols with other additives to remove water from shale |
Feb. 11, 1997 |
| 5576271 |
Composition and process for stabilizing viscosity or controlling water loss of polymer-containing water based fluids |
Nov. 19, 1996 |
| 5362713 |
Drilling mud compositions |
Nov. 8, 1994 |
| 5256651 |
Hydrophilic-hydrophobic derivatives of polygalactomannans containing tertiary amine functionality |
Oct. 26, 1993 |
| 4964999 |
Process for forming stable emulsions of water soluble polysaccharides in hydrocarbon liquids |
Oct. 23, 1990 |
| 4647385 |
Reduction of viscosity of aqueous fluids |
Mar. 3, 1987 |
| 4565647 |
Foaming surfactant compositions |
Jan. 21, 1986 |
| 4469620 |
Dry blend thickening composition containing benzoquinone and polygalactomannan gum |
Sep. 4, 1984 |
| 4439328 |
Well servicing fluid additive |
Mar. 27, 1984 |
| 4378049 |
Methods, additives and compositions for temporarily sealing high temperature permeable formations |
Mar. 29, 1983 |
| 4290899 |
Thermal stabilizer for non-clay wellbore fluids |
Sep. 22, 1981 |
| 4257903 |
Drilling fluid containing crosslinked polysaccharide derivative |
Mar. 24, 1981 |
| 4175042 |
Well completion and work over fluid and method of use |
Nov. 20, 1979 |
| 4140639 |
Clay-free wellbore fluid |
Feb. 20, 1979 |
| 4038206 |
Hydroxyalkyl locust bean/xanthomonas hydrophilic colloid blends |
Jul. 26, 1977 |
| 4025443 |
Clay-free wellbore fluid |
May. 24, 1977 |
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