Anti-collapse plugging agent emulsified paraffin for drilling fluid and preparation method of anti-collapse plugging agent emulsified paraffin

The invention relates to the technical field of anti-sloughing plugging agents for drilling fluids, in particular to an anti-sloughing plugging agent emulsified paraffin for a drilling fluid and a preparation method of the anti-sloughing plugging agent emulsified paraffin. The preparation method comprises the following steps: adding a base solution into paraffin, adding acrylic acid, acryloyloxyethyl dimethyl ammonium chloride, sorbitan monooleate and dodecylphenol polyoxyethylene ether, uniformly mixing to obtain a mixed solution I, heating paraffin to a molten state, adding the mixed solution I into the paraffin in the molten state, adding the base solution, uniformly mixing, and finally, uniformly mixing to obtain a finished product. And adding an ammonium persulfate aqueous solution and a sodium hydrogen sulfite aqueous solution, uniformly mixing and reacting. According to the anti-sloughing plugging agent emulsified paraffin for the drilling fluid, the base liquid with high inhibition performance is adop