公开(公告)号：US4387450A

公开(公告)日：1983-06-07

申请号：US221734

申请日：1980-12-31

Applicant: Robert G. Zachariadis

Inventor： Robert G. Zachariadis

IPC: G01V1/38

CPC classification number: G01V1/3808

Abstract: Marine seismic data is gathered by a single vessel beyond the range of a conventional towed seismic sensor cable through the use of expendable sensors and hard wire transmission cables. The vessel tows a submerged platform adapted to carry several inexpensive seismic sensors and very small diameter multiconductor cables which are controllably released from the platform by appropriate equipment on the towing vessel. Signals generated by each sensor are transmitted back to the towed, submerged platform through the small diameter cable connected to each sensor and are transmitted by other means from the platform to the towing vessel for retransmission, recording and/or display. Each sensor transmits a signal back to the platform until its small diameter cable is completely deployed at which time the cable breaks and is abandoned together with the sensor. Very small diameter marine cables, which are commercially available in lengths of 20,000 feet and more are envisioned to be used to practice the invention, are coupled with an inexpensive hydrophone and preamplifier to allow the generation and reception of wide angle reflection and short range refraction seismic signals by a single vessel.

Abstract translation: 通过使用消耗性传感器和硬线传输电缆，海上地震数据由超过传统拖曳地震传感器电缆范围的单个船只收集。 船舶拖曳一个适于承载数个便宜的地震传感器和非常小直径的多导体电缆的淹没式平台，这些电缆可以通过牵引容器上的适当设备从平台控制释放。 由每个传感器产生的信号通过连接到每个传感器的小直径电缆传输回拖曳的浸没平台，并通过其他方式从平台传输到牵引船，用于重传，记录和/或显示。 每个传感器将信号发送回平台，直到其小直径电缆完全展开，此时电缆断开并与传感器一起放弃。 可以使用长达20,000英尺及以上的非常小直径的海洋电缆被设想用于实践本发明，与便宜的水听器和前置放大器耦合，以允许生成和接收广角反射和短距离折射地震 信号由单个船只。