潜江凹陷马王庙地区高精度三维地震采集方法研究

1996年江汉油田在潜江凹陷马王庙地区进行过三维地震资料采集,但是由于受当时采集技术和设备的制约,所获资料已不能满足油田勘探开发的需要。因此,江汉油田于2008年又在该区部署了高精度三维地震采集项目。针对以往采集技术缺陷,结合地质任务,对采集观测系统进行了优化设计。激发采取了动态井深设计,并在过汉江禁炮区采用了多种震源联合施工优化设计技术,最终所获地震剖面品质较以往有显著改善,信噪比和分辨率明显提高。其高精度三维采集方法值得在江汉水网地区推广和借鉴。

High-Precision 3D Seismic Acquisition Method Applied to Mawangmiao Area in Qianjiang Depression

In 1996, Jianghan Oilfield conducted 3D seismic data acquisition in Mawangmiao area. Constralnect by acquisition technology and equipment of the time, however, acquired data were unable to meet the need for the oilfield＇s exploration and development. In 2008, Jianghan Oilfield deployed high--precision 3D seismic acquisition in this area. Combined with geological task, optimization design was made for recording ge- ometry so as to remove former defect of acquisition technology. Dynamic hole depth design was adopted for shooting and optimization design of multi--source joint operation, for shot--forbidden area across Hanjiang River. All this has helped improve the quality of acquired seismic section, SNR and resolution. Therefore, high--precision 3D seismic acquisition method deserves imitation in Jianghan water network area.