Patent ID: 6080704
Filing Date: 2000-06-27
Classification: C09K

Abstract:
A method for suppressing the formation of hydrates and controlling density of a fluid for use during deepwater drilling operations, said method comprising:providing a fluid comprising a water base, said fluid having a first density of less than about 10 pounds per gallon and having effective rheology and fluid loss control properties, said fluid being selected from the group consisting of a drilling, a drill-in, and a completion fluid;using as an integral component of said fluid a water-soluble organic compound having a molecular weight below about 800 in an amount effective to achieve a level of hydrate suppression and to produce said first density, wherein said first density is less than a second density of said fluid consisting of said integral components other than said water soluble organic compound;wherein said water-soluble organic compound is selected from the group consisting of a glycol, a polyglycol, a polyalkyleneoxide, an alkyleneoxide copolymer, a polyalkylene glycol ether, a polyalkyleneoxide glycol ether, a carbohydrate, an amino acid, an aminosulfonate, an alcohol comprising between about 1-3 carbon atoms, a salt of any of the foregoing compounds, and combinations of the foregoing compounds.