Oilfield reinjection water scale inhibitor and preparation method thereof
A technology of reinjecting water and antiscalants in oilfields, which is applied in the fields of chemical instruments and methods, scale removal and water softening, water/sludge/sewage treatment, etc. waste and other problems, to achieve the effect of saving the cost of medicine
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[0014] Example 1:
[0015] Select raw materials by weight percentage
[0016] Styrene sulfonic acid 30%,
[0017] Polyepoxysuccinic acid 15%,
[0018] Polyaspartic acid 20%,
[0019] 2-phosphonic acid butane-1,2,4-tricarboxylic acid 5%
[0020] The rest is water.
[0021] Add reverse osmosis water, styrene sulfonic acid, polyepoxysuccinic acid, polyaspartic acid, and 2-phosphonic acid butane-1,2,4-tricarboxylic acid into the container in proportions, and stir at room temperature The product can be obtained within 2 to 3 hours.
Example Embodiment
[0022] Example 2:
[0023] Select raw materials by weight percentage
[0024] Styrene sulfonic acid 35%,
[0025] Polyepoxysuccinic acid 20%,
[0026] Polyaspartic acid 25%,
[0027] 2-phosphonic acid butane-1,2,4-tricarboxylic acid 5%
[0028] The rest is water.
[0029] Add reverse osmosis water, styrene sulfonic acid, polyepoxysuccinic acid, polyaspartic acid, and 2-phosphonic acid butane-1,2,4-tricarboxylic acid into the container in proportions, and stir at room temperature The product can be obtained within 2 to 3 hours.
Example Embodiment
[0030] Example 3:
[0031] Select raw materials by weight percentage
[0032] Styrene sulfonic acid 25%,
[0033] Polyepoxysuccinic acid 17%,
[0034] Polyaspartic acid 22%,
[0035] 2-phosphonic acid butane-1,2,4-tricarboxylic acid 5%
[0036] The rest is water.
[0037] Add reverse osmosis water, styrene sulfonic acid, polyepoxysuccinic acid, polyaspartic acid, and 2-phosphonic acid butane-1,2,4-tricarboxylic acid into the container in proportions, and stir at room temperature The product can be obtained within 2 to 3 hours.
[0038] Application test and results
[0039] 1. Source of test sample
[0040] See table 1
[0041] Table 1 Sources of test samples
[0042] Medicine source Drug name Product Example 1 of the present invention HD 19① Product Example 2 of the present invention HD 19② Product Example 3 of the present invention HD 19③
[0043] 2. Calcium carbonate resistance test
[0044] 2.1 Test water: distribution water: Ca 2+ 240ppm, HCO 3 - 732ppm.
[0045] 2.2 Test conditions...
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