装填RDX基含铝炸药射孔弹的性能试验

为了提高含能射孔弹综合性能,降低致密油气储层的开采难度,对装填RL-F含铝炸药射孔弹的性能进行了研究。首先以RL-F含铝炸药为研究对象,对RL-F含铝炸药进行了机械感度、静电火花感度、5 s延滞期爆发点和DSC热分解测试;其次分别将RL-F含铝炸药和JH-16炸药装填在89型射孔弹中,进行了地面模拟装枪穿钢靶和穿柱状混凝土靶试验。结果显示:RL-F含铝炸药具有合适的机械感度,耐热性良好,适用于射孔弹压装工艺;与装填JH-16炸药的89型射孔弹穿深性能相比,装填RL-F含铝炸药的89型射孔弹地面侵彻钢靶和地面侵彻柱状混凝土靶穿深分别降低了10.6%和27.5%,而装填RL-F炸药在侵彻混凝土靶时射流孔道干净清晰、无杵堵,孔道无压实带。

Performance testing of perforating bullets shaped charge with RDX based aluminized explosives

In order to improving the comprehensive performance of energetic perforating bullets and reducing the difficulty of exploitation of tight oil and gas reservoirs, the perforating bullets loaded with RL-F aluminized explosives were studied. Firstly, the RL-F aluminized explosive was used as the research object, the mechanical sensitivity, the electrostatic spark sensitivity, the 5 s delay time and the DSC thermal decomposition of the RL-F explosive were tested. Secondly, RL-F explosives and JH-16 explosives were loaded in the 89 type perforating bullets, and the ground simulated gun penetrated steel targets and concrete targets were tested. The results show that RL-F explosives have suitable mechanical sensitivity and good heat resistance and are suitable for perforation compression loading. Compared with the depth performance of type 89 perforating bullets filled with JH-16 explosives, the penetration of 89 type perforating bullets filled with RL-F aluminized explosives were reduced by 10.6% and 27.5%, respectively, the jet channel was clean and clear, without pestle plugging and without compaction zone.