A kind of oily sludge profile control agent and preparation method thereof
A profile control agent and sludge technology, applied in chemical instruments and methods, drilling compositions, etc., can solve problems such as the inability of the thickener to disperse completely and effectively, the performance of profile control gels not up to the standard, and the validity period of water blocking is short, etc. , to achieve the effect of controllable gel formation time, improved strength and obvious effect
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Embodiment 1
[0034] Dissolve acrylamide, acrylic acid, 2-acrylamide-2-methylpropanesulfonic acid and surface-active functional monomers in water, neutralize them with 30% sodium hydroxide solution, and control the neutralization temperature below 20°C in an ice-water bath. The mass is 30-35%, and nitrogen gas is passed through to remove oxygen for 30 minutes, and the product is obtained through a compound initiation system composed of ammonium persulfate, white block and water-soluble azo V044 to initiate polymerization, granulate, dry and pulverize. The specific ratio is shown in Table 2:
[0035] Table 2
[0036]
Embodiment 2
[0038] at 5m 3 Add 3.0m to the mixing tank 3 clean water, start stirring and add 2.0m 3 Oily sludge, then add 5.0Kg of cross-linking agent JL-POA and 10.0Kg of thickener A to obtain profile control agent.
Embodiment 3-7
[0040] According to the addition and preparation method of Example 2, different profile control agents were prepared, and the composition is shown in Table 3.
[0041] table 3
[0042]
[0043]
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