仪器的大道数能力在高精度勘探中的重要性与实现

The importance and improving method of Mega channels seismic data acquisition system for high resolution seismic survey

随着地球物理勘探技术的发展,仪器的道能力已经成为地震数据采集记录系统的一个重要指标。而影响道能力指标的关键因素是采集地震数据的传输方法(或数据传输速率)和地震仪器本身的结构或者说外线地震数据进入仪器主机(中央控制与记录单元)的接入方法。本文阐述了仪器道能力在地球物理勘探中的重要性和实现方法,采用高的数据传输率可以实现大道数的数据采集,而经过科学设计的仪器结构更为道数的扩展提供新的途径,从而可以有效地提高地球物理数据采集的效率,降低采集成本,实现高效、高精度勘探的普及。

With the development of the geophysical exploration technology, mega channels seismic data acquisition ＆ recording system has become one of important item. Mega channels seismic data acquisition ＆ recording system depends on the seismic data transmission method （or data rate） and the structure of system itself. This paper expounds the importance and realization method of Mega channels seismic data acquisition system for high resolution seismic survey. Mega channels seismic data acquisition system could be achieved by using high speed data transfer rate or by expansion. It is a new way expanding capacity of acquisition channels of seismic data acquisition system by improves the structure of the system. Under the mega channel support in seismic data acquisition system, we can increase exploration efficiency, reduce the data collection cost, meet the requirements of 3D seismic exploration for high resolution and large number of channels, and popularize application of high resolution seismic survey.