High-temperature-resistant high-density biomass synthetic base drilling fluid and preparation method thereof
A biomass and high-temperature resistant technology, applied in the field of drilling fluids, can solve the problems of difficult biodegradation and low environmental acceptability of synthetic-based drilling fluids, maintain suspension stability, improve sand-carrying capacity, and improve high-temperature rheology. performance effect
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Embodiment 1
[0093] Add 6 mol of cetyl alcohol, 0.5 mol of n-pentane chloride, 0.5 mol of sodium hydroxide, and 0.02 mol of 1-butyl-3-methylimidazolium hexafluorophosphate catalyst into a reaction kettle with a stirring, condensing and heating device, Stir and mix evenly, and react at 90° C. and 300 rpm for 24 hours to obtain cetyl alcohol pentyl ether.
[0094] Carry out infrared spectrum detection to cetyl alcohol pentyl ether prepared in the embodiment of the present invention 1, detection result is as follows figure 1 shown by figure 1 It can be seen that the structural formula of the cetyl pentyl ether prepared in Example 1 of the present invention is:
[0095] CH 3 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -O-CH 2 -CH 2 -CH 2 -CH 2 -CH 3
Embodiment 2
[0097] Add 6 mol of cetyl alcohol, 1.5 mol of n-chlorohexane, 1.5 mol of potassium hydroxide, and 0.2 mol of 1-octyl-3-methylimidazolium hexafluorophosphate catalyst into a reaction kettle with a stirring, condensing and heating device, and stir Mix well, and react at 150° C. and 500 rpm for 18 hours to obtain cetyl alcohol hexyl ether.
[0098] According to the method of Example 1, the cetyl alcohol hexyl ether prepared in the embodiment 2 of the present invention is detected, and the test result is that the structural formula of the cetyl alcohol hexyl ether prepared in the embodiment 2 of the present invention is:
[0099] CH 3 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -O-CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 3
Embodiment 3
[0101] Add 6 mol of stearyl alcohol, 1 mol of n-pentane chloride, 1.2 mol of sodium hydroxide, and 0.1 mol of polyethylene glycol-600 catalyst into a reaction kettle equipped with a stirring, condensing and heating device, stir and mix evenly. The reaction was carried out at 400 rpm for 24 hours to obtain stearyl pentyl ether.
[0102] According to the method of Example 1, the octadecyl alcohol pentyl ether prepared in the embodiment 3 of the present invention is detected, and the detection result is that the structural formula of the stearyl alcohol pentyl ether prepared in the embodiment 3 of the present invention is:
[0103] CH 3 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -CH 2 -O-CH 2 -CH 2 -CH 2 -CH 2 -CH 3
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