Petroleum fracturing propping agent and preparation method thereof

The invention belongs to the technical field of petroleum propping agents, and particularly relates to a petroleum fracturing propping agent and a preparation method thereof. The petroleum fracturingpropping agent is prepared from bauxite powder, crushed fine powder, calcium aluminate cement and polysiloxane. The petroleum fracturing propping agent with excellent breaking rate performance is successfully prepared by taking a secondary bauxite powder as a raw material instead of taking the primary bauxite or the special bauxite as the raw material through optimization of product raw materialsand a preparation process. 本发明属于石油支撑剂技术领域，具体涉及一种石油压裂支撑剂及其制备方法。该石油压裂支撑剂的原料有铝矾土粉、再粉碎细粉、铝酸钙水泥和聚硅氧烷。本发明不需要使用一级或特级铝矾土作为原料，而是以二级铝矾土粉作为原料，经过产品原料和制备工艺的优化，成功制得了破碎率性能优良的石油压裂支撑剂。