数字化脉冲幅度分析方法研究

Research of digital pulse amplitude analysis method

随着数字信号处理技术的成熟,核脉冲幅度分析方法正逐渐向数字化过度。斯伦贝谢等国外公司的伽马能谱测井仪器已对数字化脉冲幅度分析技术实现了普及应用。数字化脉冲幅度分析技术有占用空间小、功率小的优点,并且利用数字化脉冲幅度分析技术能够实时监测井下仪器采集信号的坏基线数量、堆栈脉冲数量、临近脉冲数量等采集参数,进而调整模拟电路参数,修正脉冲形态,使测量数据准确地反应真实的地层特点。

Along with the digital process technology become mature,the nuclear pulse amplitude analysis gradually uses digital technique.Schlumberger and other foreign companies' gamma energy spectrum logging tools have popularized the digital pulse amplitude analysis technology.Digital pulse amplitude analysis technology has the advantages of smaller space and low power,and for use it,we can real-time monitor the downhole toos' acquisition parameters,such as bad baseline number,pile-up pulse number and near pulse number.And then can adjust analog circuit parameters and fix pulses' shape,and make the measured data response the real characteristic of the formation accurately.