声速测井的测量条件与影响因素的分析

Analysis of Measuring Condition and Influence Factors of Sonic Logging

近年来,声速测井在煤田测井领域得到了广泛应用和推广,本文分析了在声速测井的过程中,影响声波测量效果的主要因素,并提出了改善声速测井的测量条件及影响因素的方法,通过加大源距离,避免"周波跳跃"假异常状况的发生,适当提高仪器的放大倍数,降低"周波跳跃"发生的几率,采取扶正措施,避免探管碰撞井壁,降低"提前触发干扰"发生的几率,最终提升了测量效果。

In recent years, sonic logging has been widely applied and popularized in the field of coalfield well logging. Analyzes the main factors of influencing the sonic wave measurement effect in the process of sonic logging, and puts forward the methods of improving the measuring condition and the influence factor to sonic logging. Avoids the occurrence of cycle skip which is a false abnormality by increasing the source distance. Increases the magnification times of instrument properly, reduces the probability of cycle skip. Adopts the measure of righting probe to avoid touching shaft wall. Reduces the probability of trigger interference in advance, improves the measurement effect ultimately.