Oil Field Used Ceramic Proppant 1). High Density; 2), High ... is one kind of ceramic particle product with high intensity resistance, mainly used for underground support to increase ... sand, glass ball, metal ball etc. With low intensity materials, it has good effect in increasing output of ... 52MPa/69MPa/86MPa/100MPa high, medium and low intensity oil fracturing proppant. By the unique grinding and ...