从换能器技术的变化看声波测井技术的发展

Transducers and acoustic well logging technology

无论是在电缆测井还是在随钻测井方面,声波换能器结构和振动模式的变化导致了声波测井技术的进步和重大演化.文章以声波测井换能器技术的变化为主线,分析了声波测井技术的发展和进步以及我国在该技术领域取得的进步.单极子声波测井技术已经成为我国成熟的声波测井技术,包括非对称声源技术在内的多极子声波测井技术是我国刚刚攻克的先进声波测井技术并已经进入产业化进程,以井下声波的定向辐射和定向接收为最主要特征的相控声波测井技术是正在研发的新一代声波测井技术,我国在此领域也已经取得显著突破.

Improvements in the structure and vibration mode of acoustic transducers has led to remarkable progress in acoustic well logging technology both for wireline logging and logging while drilling. We analyze recent developments,particularly in China,along the acoustic transducer. Monopole acoustic well logging is mature in China.Furthermore,the more advanced multipole acoustic well logging technology in which an asymmetric acoustic source is used has already entered the production stage.The latest generation of acoustic logging,known as acoustic phased-array well logging and featuring directional acoustic radiation and receiving,is being developed,and significant achievements have already been made in China.