Alcohol-base fracturing fluid
A fracturing fluid and alcohol-based technology, which is applied in the field of fracturing fluid, can solve problems such as increased formation damage, formation pore blockage, and failure of fracturing stimulation, and achieves the effects of improving effective permeability, increasing size, and facilitating flowback Effect
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specific Embodiment 1
[0045] 10m on site 3 Add 7800Kg of methanol into a container with agitator, slowly add 30Kg of cationic polyacrylamide while stirring, then add 1Kg of zirconium oxychloride, and continue to stir for 10 minutes so that the liquid is fully mixed to form solution A 1 .
[0046] at 2m 3 Add 900Kg of clean water into the container, and slowly add 50Kg of industrial hydrochloric acid and 50Kg of hydrogen peroxide successively while stirring with a pump or a stirrer, and stir to make solution B for later use.
[0047] During fracturing construction, pump solution A 1 At the same time, press solution B with solution A 1 With solution A 1 : solution B = 100 liters: 2.0 liters volume ratio mixed to form methanol jelly fracturing fluid.
specific Embodiment 2
[0048] 10m on site 3 Add 7800Kg of methanol into a container with agitator, and slowly add 30Kg of cationic polyacrylamide while stirring, then add 1Kg of zirconium oxychloride and 100Kg of surfactant respectively, and continue stirring for 10 minutes so that the liquid is fully mixed and formed Solution A 2 .
[0049] Solution B was prepared according to the method in "Specific Example 1" for use.
[0050] During fracturing construction, pump solution A 2 At the same time, solution B, liquid CO 2 Press with solution A 2 With solution A 2 : Solution B: Liquid CO 2 = 100 liters: 2.0 liters: 100 liters volume ratio is mixed to form CO 2 Methanol jelly foam fracturing fluid.
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