Preparation method and application method of water-based drilling cutting adsorptive filter material
A drilling cuttings, water-based technology, which is applied in the field of preparing adsorption filter materials based on water-based drilling cuttings, can solve the problems of increasing environmental protection pressure and wasting resources, and achieves the effects of easy cleaning and regeneration, long service life and good chemical stability.
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[0028] Example 1
[0029] 100g of dried water-based drill cuttings are mixed with 15g of clay and 5g of diatomaceous earth, crushed with a universal pulverizer and passed through a 20-mesh standard sieve. Then add a small amount of water, stir until the mixture becomes a paste, stop adding distilled water, and continue stirring for 5 minutes. Put the uniformly mixed mixture into a mold for molding, and perform a high-temperature baking step (preheating temperature is 400-600℃, preheating time is 15 min, baking temperature is 1000-1100℃, and baking time is 10 min). The resulting product has a water absorption rate of 15%, a filter density of 1.31 g / cm3, and a porosity of 22%.
Example Embodiment
[0030] Example 2
[0031] Mix 100 g of the dried water-based drill cuttings with 6 g starch, 15 g diatomaceous earth, and 2 g sodium carbonate, pulverize with a universal pulverizer and pass through a 20-mesh standard sieve. Then add a small amount of water, stir until the mixture becomes a paste, stop adding distilled water, and continue stirring for 5 minutes. Put the uniformly mixed mixture into a mold for molding, and perform a high-temperature baking step (preheating temperature is 400-600℃, preheating time is 15 min, baking temperature is 1000-1100℃, and baking time is 10 min). The resulting product has a water absorption rate of 21%, a filter density of 1.28 g / cm3, and a porosity of up to 23%.
Example Embodiment
[0032] Example 3
[0033] 100g of dried water-based drill cuttings are mixed with 5g of clay and 15g of diatomaceous earth, crushed with a universal pulverizer and passed through a 20-mesh standard sieve. Then add a small amount of water, stir until the mixture becomes a paste, stop adding distilled water, and continue stirring for 5 minutes. Put the uniformly mixed mixture into a mold for molding, and perform a high-temperature baking step (preheating temperature is 400-600℃, preheating time is 15 min, baking temperature is 1000-1100℃, and baking time is 10 min). The water absorption rate of the obtained product is 18%, the filter density is 1.26 g / cm3, and the porosity is as high as 22%.
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