Phase permeability modifier for oil field fracturing and preparation method thereof
A phase permeability regulator and oil field fracturing technology, applied in chemical instruments and methods, drilling compositions, etc., can solve problems such as unsatisfactory phase permeability adjustment effect, achieve excellent selective water control performance and loose use conditions , the effect of good flowback performance
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Embodiment 1
[0019] Embodiment 1, the raw material of this oilfield fracturing phase permeability regulator includes 1% to 4% emulsifier, 8% to 10% diesel oil, 0.07% to 0.2% initiator and the remainder of the polymerization monomer and the remaining amount of water, wherein the weight ratio of polymerized monomers to water is 5:2 to 45:7.
Embodiment 2
[0020] Embodiment 2, the raw material of this oil field fracturing phase permeability modifier includes 1% or 4% emulsifier, 8% or 10% diesel oil, 0.07% or 0.2% initiator and the polymerization monomer and the remainder amount of water, wherein the weight ratio of polymerized monomers and water is 5:2 or 45:7.
Embodiment 3
[0021] Example 3, as an optimization of Example 1 and Example 2, the polymerized monomers are acrylamide, 2-acrylamide-2-methylpropanesulfonic acid, N, N-dimethylacrylamide in a weight ratio of 3 to 4 : 6 to 7: a mixture of 2 to 3; or / and, the emulsifier is a mixture of Span 80 and Tween 80 in a weight ratio of 3 to 4:7 to 9; or / and, the diesel oil is No. 0 diesel oil; or / and, the initiator is ammonium persulfate.
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