High temperature resistant solid propellant for oil and gas deep wells and preparation method thereof
A solid propellant, high temperature resistance technology, applied in the direction of attack equipment, compressed gas generation, etc., can solve problems such as inability to use, and achieve the effect of good temperature resistance and excellent hydrolysis resistance.
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[0035] 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:
[0036] Step 1, according to the proportion of the formula, by weight percentage, the high temperature resistant epoxy resin is 10.00% to 43.37%, the bisphenol A epoxy resin is 0 to 11.40%, the epoxy resin active diluent is 0 to 12.77% and the disinfectant Add foaming agent 0.03% into the mixing pot and pre-mix for 10 minutes;
[0037] Step 2, in terms of weight percentage, add potassium perchlorate to the system of step 1 at a rate of 55.00% to 73.00%, after mixing for 50 minutes, add 2-ethyl-4-methylimidazole at a rate of 0.98% to 1.60%, and mix for 15 Stop mixing after 10 minutes, obtain syrup;
[0038] 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-temperature-resistant solid propellant....
Embodiment 1
[0041] 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: 60.00% of potassium perchlorate, 14.40% of TGDDM, 11.40% of epoxy resin E-51, and o-cresyl glycidyl ether 12.77%, silicone resin 0.03%, 2-ethyl-4-methylimidazole 1.40%.
[0042] Performance Testing:
[0043] Detonation heat is determined by GJB770B-2005 method 701.2 detonation heat and combustion heat constant temperature method.
[0044] The specific volume is measured according to GJB770B-2005 method 702.1 specific volume pressure sensor method.
[0045] Impact sensitivity, characteristic drop height H 50 Measured according to GJB772A-97 method 601.2.
[0046] Friction sensitivity and explosion probability P are measured according to GJB772A-97 method 602.1.
[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) Temperatu...
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: 55.00% potassium perchlorate, 43.37% TGDDM, 0.03% silicone resin, 2-ethyl-4-methyl Imidazole 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] It can be concluded from Table 2 that the propellant has moderate heat of detonation (ie, energy), high specific volume, and high temperature resistance, water resistance and salt water resistance all meet the performance requirements. At the same time, the friction sensitivity and impact sensitivity are also excellent. Suitable for oil and gas deep well heat-resistant fracturing ammunition.
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