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Kalman滤波作为一种先进的滤波方法,已广泛应用于工业、航空、航天等现代高新技术控制领域,国外的测井界(比如斯仑贝谢、阿特拉斯等)已经把该滤波方法应用于测井过程及测井资料的管理和控制中。该文以137CS自然伽马能谱数据的控制处理为例,介绍了Kalman滤波方法的原理,说明了Kalman滤波在补偿中子测井过程控制及测井资料处理中的应用,通过与传统的数据平滑方法的对比分析,说明该滤波方法在放射性测井中有很大的推广应用价值。
As an advanced filtering method, Kalman filtering has been widely used in modern high-tech control fields such as industry, aviation and aerospace. The logging circles in the world (such as Schlumberger and Atlas) have applied this filtering method In the logging process and logging data management and control. In this paper, the control of 137CS natural gamma ray spectrometry data is taken as an example. The principle of Kalman filtering method is introduced. The application of Kalman filter in compensating neutron logging process control and logging data processing is illustrated. Compared with the traditional data The comparative analysis of the smoothing methods shows that the filtering method has a great promotion and application value in the radioactive logging.