Preparation method of microsphere for detonation of blasting in oil field layer
A sphere and oil field technology, applied in the fields of fluid production, earthwork drilling, wellbore/well components, etc., can solve the problems of reliability discount, unsatisfactory ignition and detonation ignition performance, etc., to increase the ignition area and deflagration. The success rate and percentage of suspension charge burning are improved, and the effect of improving ignition efficiency
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Embodiment 1
[0034] (1) Take raw material by following mass percentage: potassium chlorate 44%, potassium perchlorate 6%, ammonium nitrate 4%, sulfur powder 36%, nitrocellulose 9%, aluminum powder (particle size is below 10 μ m) 0.5%, magnesium powder (particle size less than 10 μm) 0.5%, the raw materials weighed are mixed uniformly to obtain powder;
[0035] (2) Take part of the medicinal powder described in step (1), and add collodion acetone solution therein, stir it into a ball and force it to sieve with a non-metallic scraper, then sieve, and take a particle size of 0.42mm as qualified The product is dried; the addition of the collodion acetone solution is 20% of the volume of the powder used, and the mass percentage content of the collodion in the collodion acetone solution is 7%;
[0036] (3) Place the qualified product after drying in the step (2) in the sugar coating machine, spray the shellac ethanol solution in 15 times, and sprinkle the medicated powder described in the step (...
Embodiment 2
[0042] (1) Take the raw materials by the following mass percentages: 56% of potassium chlorate, 5% of potassium perchlorate, 5.5% of ammonium nitrate, 25% of sulfur powder, 7% of nitrocellulose, 1% of aluminum powder (with a particle size below 10 μm), magnesium powder (with a particle size of less than 10 μm) 0.5%, the raw materials weighed are mixed uniformly to obtain powder;
[0043] (2) Take part of the powder described in step (1), and add collodion acetone solution therein, stir it into a ball and force it to sieve with a non-metallic scraper, then sieve, and take a particle size of 1.19mm as qualified The product is dried; the add-on of the collodion acetone solution is 30% of the volume of the medicinal powder used, and the mass percentage content of the collodion in the collodion acetone solution is 5%;
[0044] (3) Place the qualified product after drying in the step (2) in the sugar coating machine, spray the shellac ethanol solution in 20 times, and sprinkle the m...
Embodiment 3
[0050] (1) Take raw material by following mass percentage: potassium chlorate 48%, potassium perchlorate 10%, ammonium nitrate 8%, sulfur powder 25%, nitrocellulose 7%, aluminum powder (particle size is below 10 μ m) 1%, magnesium powder (particle size less than 10 μm) 1%, the raw materials weighed are mixed uniformly to obtain powder;
[0051] (2) Take part of the medicinal powder described in step (1), and add collodion acetone solution therein, stir it into a ball and force it to sieve with a non-metallic scraper, then sieve, and take a particle size of 0.8mm as qualified The product is dried; the add-on of the collodion acetone solution is 25% of the volume of the medicinal powder used, and the mass percentage content of the collodion in the collodion acetone solution is 2%;
[0052] (3) Place the qualified product after drying in the step (2) in the sugar coating machine, spray the shellac ethanol solution in 18 times, and sprinkle the medicated powder described in the st...
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