中国大陆科学钻探CCSD-1井0~2000米测井曲线井深自动校正

0~2000m DEPTH CORRECTION OF CHINA CONTINENTAL SCIENTIFIC DRILLING PROGRESSIVE CCSD-1 WELL

中国大陆科学钻探(CCSD)主孔CCSD-1井第一阶段0～2 000 m钻进完成后,前后2次测井的深度值差异较大,必须对事故后测井的深度值进行校正,以保证数据的正确性.首先对该测井数据进行了一系列的预处理,然后使用多种方法对比分析进行深度校正.在大多数井段取得了良好的效果,达到了事先要求的精度.校正结果表明,相关分析是一种行之有效的方法,但曲线形态差异较大的井段处理还有待研究.全部过程采用计算机自动完成,提高了数据处理工作的效率.

The depth data logged again from China Continental Scientific Drilling (CCSD) progressive CCSD-1 well after the completion of the first 0~2 000 m drilling plan are different from the data measured last time. Corrections must be made for the veracity of the logging data. In this paper, the logging data were pre-processed before the correction, and several methods were applied for analysis during the correction. The results of correction are satisfactory and fully meet the required precision. It is shown that the correction analysis is an effective method for correction. Nevertheless, the processing of the parts with obvious different logging curve shapes needs further investigation. The whole process is automatically done on computer, and the technique can obviously improve the data-processing efficiency.