Ceramic proppant for oil and gas fracturing and preparation method thereof
A technology of oil pressure and proppant, which is applied in chemical instruments and methods, earthwork drilling, and fluid production, etc., can solve the problems of high firing temperature, high production cost, and increase the cost of oil and gas production and fracturing construction. cost, to achieve comprehensive utilization, the effect of strong anti-shredding ability
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Embodiment 1
[0015] The bauxite ore, solid waste ceramsite sand, and dolomite are respectively ground to a particle size smaller than the sieve size of a 325-mesh standard sieve. According to the weight percentage, 74% of bauxite ore, 20% of solid waste ceramsite sand, MnO 2 3% and 3% of dolomite, and add an appropriate amount of plasticizer to fully mix, then add 15% water or aqueous solution to granulate, screen out 20-40 mesh spheres and dry to obtain semi-finished products, and semi-finished products are separated at 1240 ° C , 1260°C, 1290°C, 1320°C, 1350°C and fired at 1260°C, 1290°C, 1320°C, 1350°C, after rapid cooling and sieving of the product, a 20-40 mesh alumina / mullite composite phase ceramsite proppant for oil and gas fracturing can be obtained.
[0016] The prepared alumina / mullite composite phase ceramsite proppant for oil and gas fracturing, the primary and secondary phases are alumina and mullite respectively, ceramics fired at 1240°C, 1260°C, 1290°C, 1320°C, 1350°C The s...
Embodiment 2
[0018] The bauxite ore, solid waste ceramsite sand, and dolomite are respectively ground to a particle size smaller than the sieve size of a 325-mesh standard sieve. According to the weight percentage, 70% of bauxite ore, 25% of solid waste ceramsite sand, MnO 2 1% and 4% of dolomite, and add an appropriate amount of plasticizer for full mixing, then add 13% of water or aqueous solution for granulation, screen out 20-40 mesh spheres and dry to obtain semi-finished products, semi-finished products at 1310 ° C After firing, the product is rapidly cooled and sieved to obtain a 20-40 mesh alumina / mullite composite phase ceramsite proppant for oil and gas fracturing.
[0019] The prepared alumina / mullite composite phase ceramsite oil and gas fracturing proppant, the primary and secondary phases are alumina and mullite respectively, the sphericity of the ceramsite oil and gas fracturing proppant is 0.9, and the turbidity is less than 60FTU , the acid solubility is less than 5%, and ...
Embodiment 3
[0021] The bauxite ore, solid waste ceramsite sand, and dolomite are respectively ground to a particle size smaller than the sieve size of a 325-mesh standard sieve, according to the weight percentage of bauxite ore 80%, solid waste ceramsite sand 15%, MnO 2 3% and 2% of dolomite, and add an appropriate amount of plasticizer for full mixing, then add 10% water or aqueous solution for granulation, screen out 20-40 mesh spheres and dry to obtain semi-finished products, semi-finished products at 1380 ° C After firing, the product is rapidly cooled and sieved to obtain a 20-40 mesh alumina / mullite composite phase ceramsite proppant for oil and gas fracturing.
[0022] The prepared alumina / mullite composite phase ceramsite oil and gas fracturing proppant, the primary and secondary phases are alumina and mullite respectively, the sphericity of the ceramsite oil and gas fracturing proppant is 0.9, and the turbidity is less than 60FTU , the acid solubility is less than 5%, and the bul...
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