基于实轴积分法的声波全波列测井数值模拟  

Numerical Simulation of Acoustic Full Wave Train Logging Based on Real Axis Integration Method

作　　者：王丽娟 张晶 WANG Li-juan;ZHANG Jing(Research Institute of Down Hole Measuring and Control,Xi'an Shiyou University,Shaanxi Xi'an 710065,China)

机构地区：[1]西安石油大学井下测控研究所,陕西西安710065

出　　处：《辽宁化工》2018年第12期1231-1233,1236,共4页Liaoning Chemical Industry

摘　　要：为了研究声波在井内的声场传播特性,根据井孔声场传播原理,利用实轴积分法模拟单极子声源的声场响应,研究了声源频率、井径、地层参数对全波列信号的影响,得出:声源频率应该选择8～12k Hz;井径应该选择较小尺寸;慢速地层中接收器不能接收到横波;根据全波列波形图可以判断地层信息。In order to study the sound field propagation characteristics of acoustic wave in the well,the sound field response of the monopole source was simulated by the real axis integration method according to the principle of sound field propagation.The effects of sound source frequency,well diameter and formation parameters on the full wave train signal were studied.It's concluded that the sound source frequency should be 8-12kHz;the well diameter should be chosen to be smaller;the receiver in the slow formation cannot receive the transverse wave;the formation information can be judged according to the full wave train waveform.

关 键 词：声波 实轴积分法 全波列信号 

分 类 号：TP631.8[自动化与计算机技术—控制理论与控制工程]