High temperature resistant solid propellant for oil and gas deep wells and preparation method thereof
A solid propellant and high-temperature-resistant technology, which is applied in the direction of offensive equipment, inorganic oxyhalide salt explosive composition, explosives, etc., can solve the problems of inability to use, and achieve the effect of good temperature resistance and excellent hydrolysis resistance
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[0037] The preparation method of the above-mentioned high-temperature-resistant solid propellant for oil and gas deep wells, the method is carried out according to the following steps:
[0038] Step 1, according to the proportion of the formula, in terms of weight percentage, the high temperature resistant epoxy resin is 10.00% to 32.37%, the bisphenol A epoxy resin is 0 to 11.79%, and the epoxy resin reactive diluent is 0 to 12.77%. Add foaming agent 0.03% into the mixing pot and pre-mix for 10 minutes;
[0039] Step 2: In terms of weight percentage, 33.00% to 58.00% of potassium perchlorate and 8.00% to 33.00% of 1,3,5-triamino-2,4,6-trinitrobenzene are added to the system of step 1, After mixing for 50 minutes, add 2-ethyl-4-methylimidazole at 0.98% to 1.60%, and stop mixing after 15 minutes to obtain a syrup;
[0040] Step 3: pour the slurry obtained in step 2 into a mold, put it into a 70°C oven for curing for 24 hours, and remove the mold to obtain a finished high-tempe...
Embodiment 1
[0043]The high-temperature-resistant solid propellant for oil and gas deep wells of this embodiment is composed of the following raw materials in weight percentage: 33.00% of potassium perchlorate, 33.00% of TATB, 14.40% of TGDDM, 5.40% of epoxy resin E-51, and Cresyl glycidyl ether is 12.77%, silicone resin is 0.03%, and 2-ethyl-4-methylimidazole is 1.40%.
[0044] Performance Testing:
[0045] Detonation heat is determined by GJB770B-2005 method 701.2 detonation heat and combustion heat constant temperature method.
[0046] The specific volume is measured according to GJB770B-2005 method 702.1 specific volume pressure sensor method.
[0047] The test method of high temperature resistance is: Ф20mm×20mm powder column (1) 3°C / min rise to 180°C, keep warm for 48h; (2) Temperature control point: the thermocouple is suspended directly above the sample, not in contact with the sample. The thermal weight loss of the sample is not more than 3%, and the test is passed if it is neit...
Embodiment 2
[0054] The high-temperature-resistant solid propellant for oil and gas deep wells of this embodiment is composed of the following raw materials in terms of weight percentage: 41.00% of potassium perchlorate, 25.00% of TATB, 32.37% of TGDDM, 0.03% of silicone resin, 2-ethyl -4-methylimidazole is 1.60%.
[0055] The performance test method of the high-temperature-resistant solid propellant for oil and gas deep wells in this embodiment is the same as that in Embodiment 1, and the performance test results are shown in Table 2.
[0056] Table 2 embodiment 2 each performance test result
[0057]
[0058]
[0059] It can be concluded from Table 2 that the propellant has moderate heat of detonation (ie, energy), moderate specific volume, and high temperature resistance, water resistance and salt water resistance all meet the performance requirements. Suitable for oil and gas deep well heat-resistant fracturing ammunition.
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