Carbon nanotube reinforced temperature-resistant gel plugging and adjusting agent as well as preparation method and application thereof
A jelly and temperature-resistant technology, which is applied in the field of temperature-resistant jelly plugging and adjustment and its preparation, can solve the problems of easy decomposition of polymer jelly, high construction risk, water loss, etc., and achieves dense grid structure and grid skeleton. Stout, excellent temperature resistance effect
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[0038] The preparation method of temperature-resistant jelly plugging agent of the present invention is as follows:
[0039] Step S1: dissolving the acrylamide / vinylpyrrolidone / styrene copolymer in water and fully dissolving to obtain a first solution.
[0040] Step S2: Dissolving the cross-linking agent and the stabilizer in water according to the ratio, mixing and stirring to obtain a second solution.
[0041] Step S3: Mix the first solution and the second solution, and stir evenly to obtain a gelling solution.
[0042] Step S4: Aging the gelling solution at 250-280° C. to obtain the temperature-resistant jelly plugging agent of the present invention.
[0043] The order of the above steps S1 and S2 is not limited. Steps S1 and S2 can be performed synchronously, or step S1 is performed first and then step S2 is performed, or step S2 is performed first and then step S1 is performed, as long as the normal operation of step S3 can be guaranteed That's it.
[0044] The tempera...
Embodiment 1
[0054] 1. The composition of the temperature-resistant jelly plugging agent of the present embodiment is: 0.15g of acrylamide / vinylpyrrolidone / styrene copolymer, 0.05g of urotropine, 0.05g of hydroquinone, and 0.20g of fluorinated carbon nanotubes. g, 99.55g of tap water.
[0055] 2. The temperature-resistant jelly plugging agent of the present embodiment is prepared as follows:
[0056] (1) Dissolve 0.15 g of acrylamide / vinylpyrrolidone / styrene copolymer in 50 g of tap water, and fully dissolve to obtain the first solution.
[0057] (2) Add 0.05 g of urotropine, 0.05 g of hydroquinone, and 0.20 g of fluorinated carbon nanotubes into 49.55 g of tap water, stir evenly, and dissolve them fully to obtain a second solution.
[0058] (3) Mix the first solution and the second solution, and stir evenly to obtain a gelling solution.
[0059] (4) The gelling solution is under the condition of 250° C., the gelling time is 36 hours, the jelly strength obtained is 0.071 MPa (breakthroug...
Embodiment 2
[0064] 1. The composition of the temperature-resistant jelly plugging agent of the present embodiment is: 0.15g of acrylamide / vinylpyrrolidone / styrene copolymer, 0.06g of urotropine, 0.06g of hydroquinone, and 0.21g of fluorinated carbon nanotubes. g, 99.52g of tap water.
[0065] 2. The temperature-resistant jelly plugging agent of the present embodiment is prepared as follows:
[0066] (1) Dissolve 0.15 g of acrylamide / vinylpyrrolidone / styrene copolymer in 50 g of tap water, and fully dissolve to obtain the first solution.
[0067] (2) Add 0.06 g of urotropine, 0.06 g of hydroquinone, and 0.21 g of fluorinated carbon nanotubes into 49.52 g of tap water, stir evenly, and fully dissolve them to obtain a second solution.
[0068] (3) Mix the first solution and the second solution, and stir evenly to obtain a gelling solution.
[0069] (4) Under the condition of 250° C., the gelling time is 30 hours, the strength of the obtained jelly is 0.075 MPa, and the water loss rate is 5...
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