| abstract |
The invention provides a preparation method of sulfonamidoglyceryl glycoside, comprising the following steps: 1) under the action of an acidic catalyst, glyceryl glycoside, alkylene oxide compound, chlorinating agent and epichlorohydrin compound performing a reaction to obtain a glyceryl glycoside polyether; 2) reacting the glyceryl glycoside polyether and an organic amine to obtain a polyether aminoglyceryl glycoside; 3) combining the polyether aminoglyceryl glycoside with a sulfonated Castor oil is reacted to give sulfonamidoglyceryl glycosides. On the basis of maintaining the environmental protection and lubrication of the glyceryl glycoside, the present invention introduces a polyetheramine group, a sulfonated castor oil group with a sulfonated group and a long-chain alkyl group on the glyceryl glycoside molecule, and obtains a sulfonamide group Glyceryl glycosides can solve the problem of poor lubricity of current high-density drilling fluids. The invention also provides a sulfonamidoglycerol glycoside and drilling fluid. |