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详细了解震源的辐射场对于有效的震源设计和震源波场反褶积是非常必要的。为了了解气枪理论和操作原理,就有必要研究气枪在水下释放产生的气泡运动。气枪能够在水下释放高压气泡,气泡膨胀产生地震波,被用于反射地震学研究。本论文是关于水中气泡运动产出地震压力波,也称为气枪信号。首先讨论单个气泡的相关物理原理,其次从海洋流体力学和空气热力学的基础方程推导出气泡的动态特性。一旦了解单个气泡的动态特性,就容易了解一组气枪气泡的行为特性。本文详细解释了使用气枪阵列的原因,并讨论了在实际应用中的性能规范。本文探讨了不同类型的气枪,解释了具体的操作流程,并讨论了安装于地震勘探船上由GPS导航系统和气动式电脑联合控制的枪控系统。
A detailed understanding of the source radiation field is necessary for effective source design and source wavefield deconvolution. In order to understand the airgun theory and operating principle, it is necessary to study the airgun movement caused by the release of airgun. Airsoft guns can release high-pressure bubbles under water and swell their bubbles to produce seismic waves, which are used for reflection seismology research. This paper is about the seismic pressure wave produced by bubble motion in water, also known as air gun signal. First of all, we discuss the related physical principles of single bubbles. Secondly, we derive the dynamic characteristics of bubbles from the basic equations of ocean hydrodynamics and air thermodynamics. Once you know the dynamics of a single bubble, it is easy to understand the behavior of a group of airgun bubbles. This article explains in detail the reasons for using airgun arrays and discusses the performance specifications in practice. This article explores different types of air guns, explains specific operational procedures, and discusses gun control systems installed on seismic vessels controlled jointly by GPS navigation systems and pneumatic computers.