Sulfur removal coiled tubing drag reducer
A drag reducer, metal drag reducer technology, applied in the petroleum industry, lubricating composition, etc., can solve the problems of complex engineering, coiled tubing corrosion, expansion and migration, etc., and achieve simple preparation method, high sulfur removal capacity, The effect of high anti-expansion performance
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Embodiment 1
[0022] A sulfur removal type coiled tubing drag reducer, the specific preparation method is as follows:
[0023] S1. Measure 70mL of clear water, stir at a high speed of 10000r / min, add 15g of Tween-80, stir for 5min, add 5g of Swire oil, continue stirring for 15min, then add 10g of ethylene glycol, and stir for another 5min to get metal drag reducer;
[0024] S2. Dissolve 330g of triethanolamine in 60mL of water, raise the temperature to 50°C, and add 270g of benzyl chloride dropwise for 1 hour. After the addition, the temperature is raised to 75°C, and the reaction is continued for 4 hours to obtain a clay stabilizer;
[0025] S3. Measure 97.9 mL of clear water, add 0.1 g of the metal drag reducer prepared in the above step S1, 1 g of the clay stabilizer prepared in the above step S2, and 0.5 g of hydroxyethyl hexachloro-s-triazine and 0.5 g of Pyridinium quaternary ammonium salt corrosion inhibitor, stirred evenly at room temperature, can obtain desulfurization type coiled...
Embodiment 2
[0027] A sulfur removal type coiled tubing drag reducer, the specific preparation method is as follows:
[0028] S1. Measure 45mL of clear water, stir at a high speed of 10000r / min, add 20g of isomeric tridecyl alcohol polyoxyethylene ether, stir for 5min, add 15g of Swire oil, continue stirring for 15min, add 20g of propylene glycol, and stir for another 5min , that is, the metal drag reducer is obtained;
[0029] S2. Dissolve 330g of triethanolamine in 100mL of water, raise the temperature to 70°C, add 300g of benzyl chloride dropwise for 2 hours, after the dropwise addition, raise the temperature to 110°C, and continue the reaction for 8 hours to obtain a clay stabilizer;
[0030] S3. Measure 82mL, 20wt.% hydrochloric acid aqueous solution, add 2g of the metal drag reducer prepared in the above step S1, 2g of the clay stabilizer prepared in the above step S2, 10g of tert-butylaminoethoxyethanol and 4g of pyridinium quaternary ammonium The salt corrosion inhibitor is stirre...
Embodiment 3
[0032] A sulfur removal type coiled tubing drag reducer, the specific preparation method is as follows:
[0033] S1. Measure 40mL of clear water, stir at a high speed of 10000r / min, add 40g of isomeric tridecyl alcohol polyoxyethylene ether, stir for 5min, add 10g of Swire oil, continue stirring for 15min, add 10g of ethylene glycol, and then Stir for 5 minutes to obtain the metal drag reducer;
[0034] S2. Dissolve 360g of triethanolamine in 60mL of water, raise the temperature to 60°C, add 270g of benzyl chloride dropwise for 2h, after the dropwise addition, raise the temperature to 100°C, and continue the reaction for 6h to obtain the clay stabilizer;
[0035] S3, measure 91mL, 15wt% hydrochloric acid aqueous solution, add 0.5g metal drag reducing agent that above-mentioned step S1 makes, 1.5g clay stabilizer that above-mentioned step S2 makes, 5g, 37wt.% formaldehyde aqueous solution and 2g pyridine quaternary The ammonium salt corrosion inhibitor is stirred evenly at roo...
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