NON-TOXIC AND BIODEGRADABLE SURFACTANTS

摘要

The invention is the use and application of a system having a non-toxic and biodegradable surfactant, which is not ethoxylated and is built up from alkyl polyglycoside derivatives, for use in the oilfield industry to mitigate the release of toxic chemicals into the environment. Where the surfactant system incorporates a non-ethoxylated polymerized sugar for use in downhole and surface applications in the oilfield industry. The use of alkyl polyglycoside derivatives allows the creation of surfactants, which are water soluble without any ethylene oxide or propylene oxide groups attached to the main carbon backbone of the molecule. By not ethoxylating and/or propoxylating the alkyl-backbone no 1,4-dioxane is produced as a by-product therefore there are no traces of this molecule in the surfactant produced using alkyl polyglycoside derivatives. Additionally, these surfactants do not contain nonyl, butyl, or other alkylphenol groups.

主权项

1. A fluid system for treating a well comprising:
a surfactant having a non-ethoxylated polymerized sugar, wherein the surfactant is free from an alkylphenol group, further wherein the surfactant is free from 1,4 dioxane.