摘要
井下射孔振动信号的识别一直是测井技术中需要解决的问题。针对井下射孔过程中如何识别振动信号的问题,提出了利用阈值来截取原信号的方法。该方法运用正态曲线下面积分布的原理,在正确读取信号的基础上,构造阈值来截取实际采集到的信号,并分析信号的持续时间、频谱以及能量。仿真结果表明,该方法可以截取出振动信号,且该振动信号持续时间短,频率成分复杂,能量大。
The identification of downhole perforation vibration signal is always a problem to be solved in logging technology. How to identify the vibration signal in the process of downhole perforation？ The solution by using threshold to capture the original signal is put forward. The method applies the principle of area distribution under normal curve to use threshold to capture the actual collected signals on the basis of correct signal reading, then analyzes the duration of signal, frequency spectrum and energy. The simulation results show that the method can capture the vibration signal, the duration of vibration signal is short, frequency composition is complex, also has large energy.
出处
《山西电子技术》
2016年第1期23-24,72,共3页
Shanxi Electronic Technology
关键词
井下射孔
正态分布
阈值
频谱
能量
downhole perforation
normal distribution
threshold value
spectrum
energy
