Abstract

The dependence of the noise density in a signal of a fiber-optic towed streamer in a frequency band of 10 Hz–1 kHz on the towing speed in a range of 1 to 5 knots, on the coefficient of relative elongation of its elastic section, its type, and on the type of attachment of the elastic section to the towed body have been studied. In addition, the dependence of the tensile load on the studied streamer on the towing speed is obtained. The experimental data obtained during field tests on the streamer noise level and their analysis are presented. The reduction of the towing noise level when using an elastic section occurred by a factor of up to 3 in a frequency range of 180 to 600 Hz depending on the type of elastic section when attaching it to a strength member of the towed body, and up to 2 in the entire studied frequency range.

中文翻译：

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牵引时支撑光纤地震拖缆的方法对其输出信号参数的影响

摘要

光纤拖缆在10 Hz–1 kHz频带内的信号中的噪声密度取决于1至5节范围内的拖曳速度，取决于其弹性部分的相对伸长系数，已经研究了它的类型，以及关于弹性部分到拖曳体的附着类型。另外，获得了对所研究的拖缆的拉伸载荷对牵引速度的依赖性。介绍了在现场测试中获得的有关拖缆噪声水平的实验数据及其分析。在将弹性部件安装到被牵引体的加强部件上时，根据弹性部件的类型，在使用弹性部件时，在180至600 Hz的频率范围内，拖曳噪声水平的降低幅度最大为3。在整个研究的频率范围内为2。