综合录井资料处理过程中微钻时计算方法

The computing method for the micro drilling time during the data processing in comprehensive mud logging

综合录井提供的实时测量钻时受钻井及录井本身因素影响,误差较大。为使钻时数据更客观地反映储集层可钻性,通过对实时采集资料进行分析处理,去伪存真,以0.1 m小间距提取数据为例,给出了微钻时的计算方法,并具体分析了该钻时计算方法的特点。实践证明,重新计算后的微钻时有效地解决了现场测量钻时数据精度低、影响因素多、误差大等问题,对提高钻时数据可靠性、增强数据应用效果起到了一定的保障作用。

The real-time measurement of the drilling time provided by the comprehensive mud logging is influenced by the factors of drilling and logging itself,the error is larger.In order to make the drilling time data more objectively reflect the change of the reservoir drillability,taking the data extracted at the small interval of 0.1 m as the example to eliminate the false and retain the true,the calculation method for the micro drilling time was given by analyzing and processing the information collected in real-time,and the advantages of the drilling time calculation method was analyzed in the paper.It was verified that the recalculated micro drilling time could effectively solve the problem of low accuracy and more affecting factors of the wellsite measured drilling time,thus having the safe guarding function to increase the reliability and enhance the data application effect.