Fracturing propping agent and preparation method thereof
A fracturing proppant and proppant technology, applied in chemical instruments and methods, earthwork drilling, clay products, etc., can solve the problems of expensive raw materials, high production cost, low cost performance, etc., and achieve low crushing rate and material cost. The effect of reducing and improving cost performance
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[0067] The fracturing proppant prepared by the preparation method provided by the invention has the advantages of low bulk density, low apparent density, low fragmentation rate, etc., and is convenient for fracturing construction in oil and gas exploitation. The low bulk density facilitates the portability of the proppant and reduces the cost of fracturing fluid preparation. In addition, the designed amount of proppant for fracturing construction is based on square meters, and the low volume density also reduces the unit dosage of proppant, thereby reducing the cost of fracturing construction.
[0068] In a preferred embodiment of the present invention, after the raw materials are ball-milled, the ball-milled powder is passed through a 350-450 mesh sieve, and then granulated.
[0069] In a preferred embodiment of the present invention, the granulation is carried out by water atomization in the spheronizer.
[0070] In a preferred embodiment of the present invention, spherical...
Embodiment 1
[0082] The proportioning of each raw material of the shale rock in the present embodiment is:
[0083] Shale 60%
[0084] Bauxite proppant waste 25%
[0085] Potassium feldspar 15%.
[0086] The above proportioned fracturing proppant is prepared by the following method:
[0087] Step a): Ball milling: crush the shale rock, bauxite proppant waste and potassium feldspar into 30-50mm particles through the jaw crusher, put them into the batching bin respectively, and set the batching ratio of each bin according to different ratios. Ratio, each warehouse is fed to the ball mill according to the set ratio for ball milling, and after ball milling, it passes through a 350-mesh sieve to obtain powder;
[0088] Step b): Granulation: Send the sieved powder to the pelletizing machine, atomize the water and add to the pelletizing machine, add powder while adding water until the pellets reach the required particle size, and then pass through the drum sieve Spherical particles of 0.212-0...
Embodiment 2
[0091] The proportioning of each raw material of the shale rock in the present embodiment is:
[0092] Shale 68%
[0093] Bauxite proppant waste 20%
[0094] Potassium feldspar 12%.
[0095] The above proportioned fracturing proppant is prepared by the following method:
[0096] Step a): Ball milling: crush the shale rock, bauxite proppant waste and potassium feldspar into 30-50mm particles through the jaw crusher, put them into the batching bin respectively, and set the batching ratio of each bin according to different ratios. Ratio, each warehouse is fed to the ball mill according to the set ratio for ball milling, and after ball milling, it passes through a 400-mesh sieve to obtain powder;
[0097] Step b): Granulation: Send the sieved powder to the pelletizing machine, atomize the water and add to the pelletizing machine, add powder while adding water until the pellets reach the required particle size, and then pass through the drum sieve Spherical particles of 0.212-0...
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