| abstract |
The invention provides an organic boron crosslinking agent based on allyl galactoside, a preparation method and application thereof, and belongs to the technical field of oil field fracturing. The allyl galactoside-based organoboron cross-linking agent provided by the present invention has the characteristics of easy dispersion. When in use, it is mixed with the thickener guar gum solution under the action of stirring and shearing. Due to the isolation of the oil phase, Therefore, the allyl galactoside-based organoboron cross-linking agent will not immediately contact the guar gum molecules, avoiding the rapid occurrence of the cross-linking reaction, so there is sufficient time to achieve uniform dispersion in the guar gum solution. The traditional organoboron crosslinking agent exists in the form of an aqueous solution. When mixed with the guar gum solution, the two immediately contact, and the crosslinking reaction occurs before the uniform dispersion is achieved, resulting in the local formation of jelly. |