用递推最小二乘法对微电阻率扫描测井进行速度和加速度校正

肖加奇等．用递推最小一乘法对微电阻率扫描测并进行速度和加速度校正．测并技术，１９９４，１８（３）：２０４～２１１测井过程中井下仪器的非匀速运动经常严重地影响微电阻率扫描测井，必须进行速度和加速度校正。本文从理论上推得描述井下仪器运动状态的微分方程，分析了测井过程中井下仪器运动的轨迹和特征，提出了测井曲线速度和加速度校正的数学模型，应用递推最小二乘理论，导出了一种递推速度和加速度校正算法，最后介绍了速度和加速度校正程序的结构及其应用情况。

The Speed and Acceleration Correction of Micro Resistivity Scanner Logs with Recursive Least Square Algorithm

The irregular motion of the downhole logging tools often severely influencesthe microelectrical scanner logs. A speed & acceleration correction is in urgent need. In this paper, the differential equations of the motion of the downhole tools are deduced, with which the movement of downhole tools is thoroughly analyzedA so-called forecasting/correcting methematical model is introduced to tackle this speed & acceleration correction problem By means of the theory of the least square, a recursive speed & acceleration correction algorithm is obtained. Finally the computer code developed on the above method is described in detail , including its application in Shengli Oil Field.