OXYGEN SCAVENGING METHODS AND COMPOSITIONS

摘要

1518684 Well bore fluids HALLIBURTON CO 17 July 1975 [29 Oct 1974] 30058/75 Heading E1F [Also in Divisions Cl and C7] Compositions used in drilling well bores to scavenge oxygen from drilling fluids comprise sodium dithionate or dithionite or mixtures thereof and as carrier fluid therefor a liquid aliphatic hydrocarbon, a liquid aromatic hydrocarbon or mixtures thereof. The amounts of sodium dithionate or dithionite and carrier fluid may be approximately equal by weight and a thickener may also be present.