After deep mining at oil and gas, high pressure fracturing proppants low permeability deposit closure after fracturing treatment, the hydrocarbon formation split, passage of oil and gas from the cracks formed in the collection out, then need to inject fluid rock grassroots to exceed formation fracture the intensity of pressure, so that cracks the rock around the wellbore to form a channel having a high level of current capacity, the formation of cracks to keep the fracture open after the oil and gas product can be smoothly passed.
Petroleum proppant into the formation along with hydraulic fracturing proppant the high-pressure solution filled in the cracks in the rock, play a supporting fissure is closed not because of stress release effect, thereby maintaining high conductivity, so that oil and gas flow, increase production.