Guar gum residue hydrolysis agent and preparation method thereof

The invention relates to a guar gum residue hydrolysis agent and a preparation method thereof, and belongs to the technical field of oilfield development, wherein the guar gum residue hydrolysis agentis prepared from the following components in percentage by mass: 0.2-0.4% of biological acid, 0.1-0.4% of a trifluoroacetic acid solution, 1.0-2.0% of a citric acid solution, 0.1-0.3% of a hydrochloric acid solution, 0.01-0.02% of a fluorocarbon surfactant, 0.8-1.5% of an acid liquid corrosion inhibitor solution, and the balance of water. By using the technical scheme of the invention, water-insoluble polysaccharides in guar gum residues are hydrolyzed into water-soluble monosaccharide or oligosaccharide through the mild guar gum residue hydrolysis agent, so that the guar gum residues blocking the supporting cracks are dredged, and the permeability of the cracks is improved. 本公开是关于一种胍胶残渣水解剂以及一种胍胶残渣水解剂的制备方法，属于油田开发技术领域。其中，所述胍胶残渣水解剂通过以下质量百分比的各成分制备得到：生物酸，占比为0.2％至0.4％；三氟乙酸溶液，占比为0.1％至0.4％；柠檬酸溶液，占比为1.0％至2.0％；盐酸溶液，占比为0.1