This paper points out an error in the correction chart calculating the equivalent airspeed in some manuals and books.
本文指出了一些手册和书籍中计算等效空速的校正图表中的错误。
2
A technique of variable-error iterative searching solution for equivalent formation conductivity is developed. The accuracy and stability of borehole correction are improved.
通过优选建立了等效地层电导率变误差迭代搜索方法，提高了井眼环境校正的精度和稳定性。
3
Squinted equivalent range model is used in range impulse impressing to achieve range migration correction accurately.