Plugging agent containing nano-particles and preparation method of plugging agent
A technology of nano-particles and plugging agents, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of increasing the risk of shale well wall collapse, insufficient rock micro-pore and micro-fracture sealing ability, and filter cake Insufficient compactness and other problems, to achieve the effects of strong compactness, improved plugging ability, and improved stability
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Example Embodiment
[0021] Example 1
[0022] The plugging agent used in this embodiment includes the following components in 100 parts by weight:
[0023] 90 parts by weight of nanoemulsion;
[0024] 8 parts by weight of nano materials;
[0025] System stabilizer 2 parts by weight.
[0026] The preparation method of the nano material used in this embodiment includes:
[0027] First, the nano-silica, nano-titanium dioxide, and nano-graphite are mixed at a weight ratio of 6:1:3, and then used for later use. Then put stearic acid and NaOH with a weight ratio of 1:1 in a container, add water, and heat and stir at 40°C and 8000r / min. After the stearic acid and NaOH are all dissolved, add it to the nanoparticle mixture (with hard The weight ratio of fatty acid is 8-15:1). Stir at a constant temperature of 25°C and 5000 r / min for 30 min to 120 min, filter with suction, wash the organic matter on the surface with absolute ethanol, wash with water once, and dry to obtain the nanomaterial.
[0028] The preparation...
Example Embodiment
[0030] Example 2
[0031] The plugging agent used in this embodiment includes the following components in 100 parts by weight:
[0032] 80 parts by weight of nanoemulsion;
[0033] 14 parts by weight of nano materials;
[0034] System stabilizer 6 parts by weight.
[0035] The preparation method of the nano material used in this embodiment includes:
[0036] First, the nano-silica, nano-titanium dioxide, and nano-graphite are mixed in a weight ratio of 8:2:5, and then set aside. Then put stearic acid and NaOH with a weight ratio of 1:1 in a container, add water, and heat and stir at 40°C and 8000r / min. After the stearic acid and NaOH are all dissolved, add the nanoparticle mixture (with stearin The weight ratio of acid is 8-15:1). Stir at a constant temperature at 25°C and 5000 r / min for 30 to 120 minutes, filter with suction, wash the organic matter on the surface with absolute ethanol, wash again with water, and dry to obtain the nanomaterial.
[0037] The preparation method of the p...
Example Embodiment
[0039] Example 3
[0040] The plugging agent used in this embodiment includes the following components in 100 parts by weight:
[0041] 85 parts by weight of nanoemulsion;
[0042] 12 parts by weight of nano materials;
[0043] System stabilizer 3 parts by weight.
[0044] The preparation method of the nano material used in this embodiment includes:
[0045] Firstly, the nano-silica, nano-titanium dioxide, and nano-graphite are mixed in a weight ratio of 6:1:4, and then set aside. Then put stearic acid and NaOH with a weight ratio of 1:1 in a container, add water, and heat and stir at 40°C and 8000r / min. After the stearic acid and NaOH are all dissolved, add the nanoparticle mixture (with stearin The weight ratio of acid is 8-15:1). Stir at a constant temperature at 25°C and 5000 r / min for 30 to 120 minutes, filter with suction, wash the organic matter on the surface with absolute ethanol, wash again with water, and dry to obtain the nanomaterial.
[0046] The preparation method of the...
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