Low-density ceramic proppant and preparation method thereof
A proppant and low-density technology, which is applied in earthwork drilling, mining fluid, wellbore/well parts, etc., can solve problems such as high production cost and shortage of raw materials, and achieve low price, easy procurement, and simple and convenient production process Effect
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Embodiment 1
[0025] The low-density ceramsite proppant of the present invention is made of the following raw materials in mass percent content:
[0026] Bauxite 85%, clay 3%, potassium feldspar 3%, quartz 3%, limestone 4%, dolomite 2%.
[0027] Grind bauxite, clay, potassium feldspar, quartz, limestone, and dolomite into 325-mesh fine powder with a passing rate greater than 95%, weigh them in proportion, mix them evenly with a ball mill, and put them into an oval granulating pot. The granulation pot is rotated at a constant speed and sprayed to form granules. After the granules are screened, they are dried until the moisture content is not higher than 5%, and then enter the rotary kiln to be fired at 1320°C for 1 hour to become a finished product. The bulk density of the tested finished product is 1.56g / cm 3 , the apparent density is 2.80g / cm 3 , The breakage rate is 5.50% when the closing pressure is 52MPa. Other indicators are also in line with the national oil and gas SY / T 5108-2006 ...
Embodiment 2
[0029] The low-density ceramsite proppant of the present invention is made of the following components in mass percent:
[0030] Bauxite 90%, clay 4%, potassium feldspar 3%, quartz 1%, limestone 1%, dolomite 1%.
[0031] Grind bauxite, clay, potassium feldspar, quartz, limestone, and dolomite into 325-mesh fine powder with a passing rate greater than 95%, weigh them in proportion, mix them evenly with a ball mill, and put them into an oval granulating pot. The granulation pot is rotated at a constant speed and sprayed to form granules. After the granules are screened, they are dried until the moisture content is not higher than 5%, and then enter the rotary kiln to be fired at 1380°C for 0.5 hours to become finished products. The bulk density of the tested finished product is 1.58g / cm 3 , the apparent density is 2.83g / cm 3 , The breakage rate is 5.15% when the closing pressure is 52MPa. Other indicators are also in line with the national oil and gas SY / T 5108-2006 industry ...
Embodiment 3
[0033] The low-density ceramsite proppant of the present invention is made of the following components in mass percent:
[0034] Bauxite 95%, clay 2%, potassium feldspar 1%, quartz 0, limestone 1.5%, dolomite 0.5%.
[0035] Grind bauxite, clay, potassium feldspar, limestone, and dolomite into 325-mesh fine powder with a passing rate greater than 95%, weigh them in proportion, mix them evenly with a ball mill, and put them into an oval granulating pot. The pot is rotated at a constant speed and sprayed to form granules. After the granules are screened, they are dried until the moisture content is not higher than 5%, and then enter the rotary kiln to be fired at 1360°C for 1.5 hours to become a finished product. The bulk density of the tested finished product is 1.57g / cm 3 , the apparent density is 2.81g / cm 3 , the breakage rate is 5.31% when the closing pressure is 52MPa. Other indicators are also in line with the national oil and gas SY / T 5108-2006 industry standards.
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Abstract
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