现代声波测井技术发展的若干特点

Characteristics of Modern Acoustic Logging Technology Development

对现代声波测井技术的发展特点和趋势进行了深入分析,重点就探测器布置的阵列化、波形采集的高速数字化、工作频率和辐射特性的可控化、多种探测模式的集成化和资料应用的多样化与扩展化进行了详细阐述。其中换能器工作频率和辐射指向特性可调控是声波测井技术的最新发展,将极大地提高仪器的环境适应性和综合探测能力。声波测井资料的应用主要体现在各种波型模式声波参数的全面开发利用和全波列信息在地层评价和工程应用的不断深化和拓展方面。随钻声波测井也有较快发展,尤其是四极子声源的使用应引起重视。对上述问题的深入分析和准确把握对新一代国产声波测井仪器的研发和应用具有积极指导意义。

This paper thoroughly analyzes the characteristics and trends of modern acoustic logging technology, especially focuses on array deployment of detectors, faster digitalization of waveforrn acquisition, controllability of working frequency and radiation, integration of multiple investigation modes, and diversity and extendibility of data application. The controllable adjustment of working frequency and radiation directional function of transducer is newly developed, which improves the environment adaptability and comprehensive investigation ability of acoustic logging tool. The advances in the application of acoustic log data lie in the deep development and wide utilization of acoustic parameters of various waveforms, and the application of full wave train to formation evaluation and production engineering. Acoustic logging while drilling has been greatly developed, especially the qurapole sonic source is drawing our attention. The analysis of these aspects of acoustic logging technologies is meaningful to the development and application of new generation of acoustic logging tool.