东部老区二次三维地震勘探的意义及效果  

Meaning of second 3-D seismic exploration in east maturing region and effects.

作　　者：陈发亮[1] 杜劲松[2] 游洪文[2] 杨小波[2] 张树海[2] 王瑞祥[2] 

机构地区：[1]中国科学院海洋研究所 [2]中原油田分公司物探研究院

出　　处：《石油地球物理勘探》2004年第2期163-167,共5页Oil Geophysical Prospecting

基　　金：~~

摘　　要：中原油田全区基本覆盖了三维地震勘探 ,其中白庙地区的三维资料是 1987年采集的。由于该区地表条件复杂 ,地下小断层发育、岩性变化快、目的层埋藏深 ,虽经多次处理 ,仍不清楚该区的油气成藏规律。为此在 2 0 0 1年冬至 2 0 0 2年春重新在该区开展一次三维地震勘探。在采集方法上采用可变面元三维观测系统 ,在资料处理上采用高保真度处理 ,在地震资料解释中采用高精度综合层位标定、地震正演分析、相干体分析、可视化等先进解释技术 ,所以地震资料的分辨率和信噪比有了明显提高 ,为岩性反演、属性分析和储层预测提供了条件。本次在白庙地区开展的二次三维地震勘探见效快、投资周期短 ,可望为老油区资源挖潜。D seismic exploration has basically been carried out in whole area of Zhongyuan Oilfield,among which the 3-D seismic data in Baimiao area was acquired in 1987.Because of the characteristic of complex sub-surface conditions,developed underground minor faults,rapid-changed lithology and deep-buried targets in this area,the oil/gas accumulation rule was not clearly defined although the data was repeatedly processed many times.Therefore,a 3-D seismic exploration was again carried out in a period from winter of 2001 to spring of 2002.Using 3-D geometry with changeable bin for field acquisition,adopting hi-fi processing modules in data processing and using such advanced interpretation techniques as high-precise synthetic layer-labeling,seismic forward analysis,coherent data volume analysis and visualization in interpretation of seismic data,so that the resolution and S/N ratio of seismic data have been greatly improved,providing condition for lithologic inversion,attributes analysis and reservoir prediction.The second 3-D seismic exploration in Baimiao area had characteristic of instantly becoming effective and short investment period,which can provide a shortcut for increasing resource potential and production capacity in maturing oilfield.

关 键 词：三维地震勘探 地震资料 地震解释 可变面元观测系统 油藏描述技术 

分 类 号：P631.4[天文地球—地质矿产勘探]