Patent ID: 7851416

Claim:
An oilfield servicing fluid composition comprising: a) an aldehyde guar obtained from a guar containing a galactose which is oxidized by reacting with galactose oxidase; and b) a continuous phase, wherein the continuous phase comprises water and a salt, wherein the salt is selected from the group consisting of potassium chloride, sodium chloride, calcium chloride, potassium formate, potassium carbonate, calcium bromide, tetramethyl ammonium chloride, and any mixture thereof, and wherein the guar containing a galactose is a guar derivative selected from the group consisting of hydroxypropyl guar (HPG), carboxymethyl guar (CMG), carboxymethyl hydroxypropyl guar (CMHPG), hydroxyethyl guar (HEG), carboxymethyl guar (CMHEG), hydrophobically-modified guar (HMG), hydrophobically-modified carboxymethyl guar (HMCMG) and hydrophobically-modified hydroxyethyl guar (HMHEG).