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Class Information
Number: 507/132
Name: Earth boring, well treating, and oil field chemistry > Earth boring > Contains organic component > Organic component contains nitrogen attached directly or indirectly to carbon by nonionic bonding > Oxygen is attached directly or indirectly to carbon by nonionic bonding > Organic component contains a nitrogen attached directly to oxygen by nonionic bonding (e.g., nitroaromatic, amineoxide, etc.)
Description: Composition wherein the organic component contains a direct nitrogen to oxygen nonionic bond, (e.g., trimethylamine oxide, nitroaromatics, nitrosoaromatics, etc.).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7521399 |
Drilling fluids containing biodegradable organophilic clay |
Apr. 21, 2009 |
| 7398826 |
Well treatment with dissolvable polymer |
Jul. 15, 2008 |
| 7348297 |
Topical defoamer and demulsifier |
Mar. 25, 2008 |
| 7060661 |
Acid thickeners and uses thereof |
Jun. 13, 2006 |
| 7052901 |
Bacteria-based and enzyme-based mechanisms and products for viscosity reduction breaking of viscoelastic fluids |
May. 30, 2006 |
| 6806234 |
Topical defoamer and demulsifier |
Oct. 19, 2004 |
| 6506710 |
Viscoelastic surfactants and compositions containing same |
Jan. 14, 2003 |
| 6239183 |
Method for controlling the rheology of an aqueous fluid and gelling agent therefor |
May. 29, 2001 |
| 5858928 |
Gel of an apolar medium, its use for the preparation of water-based drilling fluids |
Jan. 12, 1999 |
| 5807810 |
Functional fluids and liquid cleaning compositions and suspending media |
Sep. 15, 1998 |
| 5256331 |
Water-in-oil emulsions containing hydroxylamine |
Oct. 26, 1993 |
| 5090990 |
Industrial antimicrobial:uses for 2-(2-bromo-2-nitroethenyl)-furan |
Feb. 25, 1992 |
| 4997580 |
Use of organic fluorochemical compounds with oleophobic and hydrophobic groups in crude oils as antideposition agents, and compositions thereof |
Mar. 5, 1991 |
| 4664820 |
Preactivated organophilic clay gellant lubricating grease thickened with preactivated organophilic clay gellant and process for preparing preactivated organophilic clay gellants |
May. 12, 1987 |
| 4515699 |
Chemically cleaning drilling/completion/packer brines |
May. 7, 1985 |
| 4456537 |
Chemically cleaning drilling/completion/packer brines |
Jun. 26, 1984 |
| 4425243 |
Foaming agents for use in drilling for oil and gas |
Jan. 10, 1984 |
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