Fracturing propping agent and preparation method of fracturing propping agent by using oil sludge produced in exploited of oil and gas field

Abstract

The present disclosure relates to a fracturing propping agent and a preparation method thereof. The fracturing propping agent comprises the following raw materials: dry sludge, quartz sand, coal ash, bauxite and clay. In the present disclosure, a high-quality petroleum fracturing propping agent is prepared by using dry sludge which is obtained after deoiling of oily sludge and is not subjected to high-temperature pretreatment through a silicate microcrystalline ceramic principle: the high-quality petroleum fracturing propping agent is directly prepared with the dry sludge (which is formed after the deoiling of the oily sludge produced by exploiting an oil and gas field, belonging to a hazardous waste) as a main raw material by using drying, grinding, pelletizing, re-drying, calcining and other procedures; the prepared fracturing propping agent not only can replace the function of quartz sand exploited in a natural ore deposit, but also can greatly improve the river diversion property and ultimate recovery of the modified oil layer, so as to create higher economic benefits for oil extraction enterprises. According to the present disclosure, substances from deep underground can be returned back to their exploitation locations in a form of functional materials to realize true closed loop of environmental protection and green exploitation of crude oil.

Dependencies are inferred from the claim text.