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Ceramic sand is mainly used in support of the oil, is also one of the ceramsite sand varieties the biggest demand at present, also called oil fracturing proppant ceramsite sand. Petroleum and natural gas in deep mining, high closure pressure deposits of low permeability after fracturing treatment, make the rock cracking of oil and gas, oil and gas from the crack formed channels together out of. High alumina support material with high solution into the strata filling in rock cranny, to support the crack is not for stress release closure effect, thus maintaining high conductivity, so that oil and gas flow, increase production. Practice has proved, the use of high aluminum proppant fracturing wells can increase the yield of 30 - 50%, prolonging the service life of oil and gas well also, is the key material of petroleum, natural gas and low permeability oil and gas mining, construction. Products used in construction of deep well fracturing, it was filled to the formation fracture in low permeability of ore deposits, high closed fracture treatment, make the rock cracking of oil and gas, to support the crack is not for stress release closure, high flow capacity to keep the oil and gas, not only can increase the production of oil and gas, but also can prolong the service life of oil and gas wells. It is made of high quality bauxite, coal and other raw materials, crushing, fine crushing, grinding, granulating and sintering and other multi-channel process, high temperature, high pressure, high strength, conductivity, and strong corrosion resistance and other characteristics, mainly used for oil field downhole support, to increase oil and natural gas the yield, which belongs to environmental protection product. Natural quartz sand, glass balls, a metal ball - strength proppant alternatives, have good effect on increasing production of oil and natural gas. (2) clay ceramsite

With clay, clay as the main raw material, the processing of granulation, sintering and expanding into light, grain coarse aggregate size at 5 mm above, known as clay ceramsite.