摘要
在实验室条件下,用同种内置式复合射孔器单元在4种不同的靶上进行射孔并测试环形空间p—t曲线,然后检测靶体。通过实验结果的对比分析表明:相同的内置式复合射孔器单元在不同的靶上射孔时的p—t曲线不同,靶越致密则气体的峰值压力越高,持续时间越长,在孔隙度18.4%、渗透率0.102μm2的砂岩靶上形成了3条长裂缝。靶的性质决定p—t曲线特点,可以利用p—t曲线判断复合射孔效果。
The same type of combined perforator unit perforated in 4 different kinds of targets in laboratory, p--t curves in annulus space and targets were tested. Comparative analysis of the test results show that different targets perforated by the same unit present different p--t curves, in which denser targets have higher peak pressures and longer duration. Three long fractures are generated in the sandstone targets with a porosity of 18.4% and a permeability of 0. 102μm2. Characters of p--t curves, which are responded by the properties of targets, can be used to determine the combined perforation effects.
出处
《爆破器材》
CAS
北大核心
2013年第6期43-46,共4页
Explosive Materials
关键词
复合射孔器
环形空间
p-t曲线
裂缝
combined perforators, annulus space, p--t curves, fracture
