Anti-blocking lubricant for drilling fluid and preparing method
A production method and lubricant technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve problems such as environmental pollution, high fluorescence levels, interference with geological logging data, etc., to prevent pipe sticking accidents and improve lubrication performance Strong, lubricating coefficient reduction effect
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[0010] The invention is prepared by mixing No. 10 white oil, methyl oleate and emulsifier SOP-80.
[0011] Add 97.5% of No. 10 white oil into the reaction kettle, stir slowly and heat up to 25°C; then add 2% methyl oleate, stir evenly at a slow speed, heat up while stirring, control the temperature not to exceed 45°C, and stir without stirring. After less than 30 minutes, add 0.5% emulsifier SOP-80, keep stirring and raise the temperature, control the temperature not to exceed 50°C, and keep stirring for 1 hour to obtain the present invention.
[0012] The invention is a yellow or light yellow or yellow-green transparent liquid, which can be used as a liquid lubricant for oil drilling, with a density of 0.8-0.9g / cm 3 , Fluorescence level 3 , The reduction rate of lubrication coefficient is more than 80%.
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