White asphalt for drilling fluid and method for preparing white asphalt for drilling fluid
A technology of drilling fluid and white asphalt, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of complex preparation process and increased viscosity of drilling fluid, and achieve simple preparation process, good plugging of cracks, The effect of high environmental performance
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[0018] Example 1
[0019] First, accurately weighed 40kg of paraffin, 20kg of stearic acid, 1kg of alkylphenol polyoxyethylene ether, and 4kg of polyethylene glycol were added to the reactor. The reactor was heated to 70°C and stirred at a constant temperature for 30 minutes; Add 4kg of polyacrylamide to the kettle and continue to stir at constant temperature for 30 minutes; finally add 20kg of light calcium carbonate and continue to stir at constant temperature for 0.5 hours; the product is obtained by spray granulation.
Example Embodiment
[0020] Example 2
[0021] First, add accurately weighed 50kg of paraffin, 30kg of stearic acid, 2kg of alkylphenol polyoxyethylene ether, and 5kg of polyethylene glycol into the reactor. The reactor is heated to 80°C and stirred at a constant temperature for 20 minutes; Add 4.5kg of polyacrylamide into the kettle and continue to stir at constant temperature for 40 minutes; finally add 25kg of light calcium carbonate and continue to stir at constant temperature for 2 hours; the product is obtained by spray granulation.
Example Embodiment
[0022] Example 3
[0023] First, accurately weighed 45kg of paraffin wax, 25kg of stearic acid, 1.5kg of alkylphenol polyoxyethylene ether, and 4.5kg of polyethylene glycol were added to the reactor, and the reactor was heated to 90°C and stirred for 40 minutes at a constant temperature; Add 5kg of polyacrylamide to the above reaction kettle and continue to stir at constant temperature for 20 minutes; finally add 30kg of light calcium carbonate and continue to stir at constant temperature for 1 hour; the product is obtained by spray granulation.
[0024] Table 1 shows the comparison of the performance indexes of the white asphalt prepared in Examples 1 to 3 and Q / HBZJ-006-2005.
[0025] Table 1 Various performance indexes of white asphalt for drilling fluid
[0026]
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