Preparation method of anti-scale proppant particles based on composite material

• Main Authors: YUAN HUIYING, ZHANG KUANGSHENG, GU CHENGYI, SUN YULAI, YANG HUILI, LU WENWEI, LI QIONGWEI, YANG LIHUA, CHENG BIHAI, GUO GANG
• Format: Patent
• Language: Chinese; English
• Published: 12.09.2023
• Subjects: ADHESIVES; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES

The invention relates to the technical field of oil exploitation, in particular to a preparation method of anti-scale proppant particles based on a composite material. The preparation method comprises the steps that after porous fiber tows are woven and formed, shaped porous fiber tows are obtained; impregnating and adsorbing the shaped porous fiber tows by adopting an anti-scaling agent to obtain an anti-scaling proppant matrix; coating a polymer with a shape memory effect on the anti-scaling proppant matrix, curing and shaping, and processing to obtain anti-scaling proppant particles with a spiral structure; the anti-scale proppant particles enter the deep part of the stratum along with fracturing sand in the fracturing operation at the stratum temperature gt; and under the condition of 90 DEG C, the anti-scaling supporting particles recover shape memory, so that the dual effects of slowly releasing the anti-scaling agent and improving the flow conductivity of the fracturing paving layer are realized, and t