地震资料预处理技术在吉林探区的开发与应用
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摘要
目前,油气勘探工作进入到一个"低幅度、小断块、薄储层"的复杂油气藏勘探阶段,对地震资料处理的高分辨率、高信噪比、高保真度和成像准确的要求也越来越高,同时随着叠前深度偏移技术的推广和普及,先进的预处理技术已经成为地震资料处理环节中重要的一环。为了满足"三高一准"的处理要求,选择合适的预处理方法是至关重要的。该次研究通过在松辽盆地南部吉林探区的地震资料预处理过程中,采用SPS格式质控和对比折射静校正相结合的方法提高了处理精度,取得了非常好的应用效果,达到了高精度地震资料处理的要求。
At present,oil and gas exploration work entered into a stage of complex reservoir exploration of low-amplitude,small fault block and thin reservoir.The high requirements on high-resolution,high signal-to-noise ratio,high-fidelity and accurate imaging were increasingly needed for seismic data processing,at the same time with the population and introduction of pre-stack depth migration technology,the advanced pre-processing technology has become an important link of the seismic data processing.In order to meet the processing requirements of the above situation,selection of the appropriate pre-processing method is essentially important.In the study of seismic data pre-processing in Jilin Oilfield,combined with the application of SPS quality control and CRM refraction static correction,the processing accuracy is improved,requirement of high-precision seismic data processing is achieved.
At present,oil and gas exploration work entered into a stage of complex reservoir exploration of low-amplitude,small fault block and thin reservoir.The high requirements on high-resolution,high signal-to-noise ratio,high-fidelity and accurate imaging were increasingly needed for seismic data processing,at the same time with the population and introduction of pre-stack depth migration technology,the advanced pre-processing technology has become an important link of the seismic data processing.In order to meet the processing requirements of the above situation,selection of the appropriate pre-processing method is essentially important.In the study of seismic data pre-processing in Jilin Oilfield,combined with the application of SPS quality control and CRM refraction static correction,the processing accuracy is improved,requirement of high-precision seismic data processing is achieved.
引文
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[3]熊翥.地震数据处理应用技术[M].北京:石油工业出版社,2008.
[4]王彦春,余钦范,段云卿.三维折射波静校正[J].石油地球物理勘探,2000,35(1):13～19.
[5]王顺国.复杂山区静校正方法研究及效果[J].石油物探,1998,37(4):93～103.
[6]宁俊瑞,王顺国,樊佳芳,等.基于对比折射法的三维静校正技术及其应用[J].石油物探,2006,45(3):277～284.
[7]崔庆辉,徐峰,潘树林,等.三维折射初至延迟时分解静校正[J].重庆科技学院学报(自然科学版),2009,11(04):44～46.
[8]王克斌,赵灵芝,张旭民,等.折射波静校正在苏里格气田三维处理中的应用[J].石油物探,2003,42(2):248～251.
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