Hydroxymethylurea-liquid paraffin-carboxymethyl cellulose high-temperature-resistant and water-resistant sand solidification agent as well as preparation method and application thereof

The invention discloses a hydroxymethyl urea-liquid paraffin-carboxymethyl cellulose high-temperature-resistant and water-resistant sand solidification agent as well as a preparation method and application thereof. The preparation method comprises the following step: carrying out free radical polymerization reaction on a mixed reaction system containing carboxymethyl cellulose salt, hydroxymethyl urea and liquid paraffin under the action of an initiator to prepare the hydroxymethyl urea-liquid paraffin-carboxymethyl cellulose high-temperature-resistant and water-resistant sand solidification agent. According to the invention, hydroxymethyl urea is used for enhancing the mechanical strength of carboxymethyl cellulose, and liquid paraffin is used for enhancing the thermal stability and water erosion resistance of carboxymethyl cellulose, so that the hydroxymethyl urea-liquid paraffin-carboxymethyl cellulose (HD-Paraffin (L)-CMC) high-temperature-resistant water erosion-resistant sand solidification agent which