海上多方位地震资料处理关键技术  

The Key Technology of Offshore Multiple Azimuth Seismic Data Processing

作　　者：陈礼[1] 李列 庄祖垠[1] 葛勇 罗毅翔[1] 

机构地区：[1]中海油田服务股份有限公司物探研究院,天津300451 [2]中海石油(中国)有限公司湛江分公司,广东湛江524057 [3]北京天安石油科技有限公司,北京100080

出　　处：《石油天然气学报》2013年第7期58-63,86,共7页Journal of Oil and Gas Technology

摘　　要：多方位、宽方位、全方位的地震资料能够增加采集照明度,使得记录到的波场信息更加完整,从而改善地震资料的成像效果。但是目前还没有一套比较成熟的多方位地震数据处理方法技术。结合实际资料处理,讨论了海上多方位地震资料处理关键技术,处理结果表明,多方位地震资料匹配处理及非对称走时叠前时间偏移技术是多方位地震资料处理的关键,多方位地震资料采集可以有效提高地下照明度,提高复杂构造地区的地震资料成像精度,而且相对于多船宽方位采集方法而言,其采集成本大大降低。Multi-azimuth , wide azimuth and comprehensive seismic data could increase illumination in data acquisition , more completion of information of recorded wave field would be created for improving the effect of seismic data imaging.But there was no a set of more matured multi-azimuth seismic data processing techniques at present.In combination with actual data processing , the key technology of offshore multi-azimuth seismic data processing was discussed. The results show that both the matching processing of multi-azimuth seismic data and the time migration of pre-stack asymmetrical travel time technology are the key of multi-azimuth seismic data processing.Multi-azimuth acquisition data can effectively improve the underground illumination and imaging accuracy of seismic data at the complicated structure areas , moreover , comparing to the acquisition method of the multi-ship wide azimuth , the acquisition cost can be greatly reduced.

关 键 词：多方位地震采集 非对称走时叠前时间偏移 匹配处理 多次波衰减 

分 类 号：P631.44[天文地球—地质矿产勘探]