初至波表层速度模型层析反演静校正
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摘要
在山地、山前带、低降速带变化大的复杂地区进行地震资料处理,静校正问题是最突出的问题,静校正问题解决的好坏,直接影响地震剖面的品质、解释精度和钻探成功率。常规的基于浅层速度建模和统计分析的静校正方法,如高程校正、小折射、折射波静校正方法、交互迭代静校正方法等,都不能解决此类地区的静校正问题。在此,经过研究开发的初至波表层速度模型层析反演静校正方法,很好的解决了这一问题,并在实际地震资料处理中取得了很好的效果。
Static correction is the most typical problem in seismic processing in complex areas such as mountain, mountain front, low subweathered zone with sharp varying. It directly influences quality of seismic section, precision of interpretation and percent of well-drilling success. Ordinary static correction methods based on shallow velocity model and statistical analysis, for example elevation correction, short-refraction and refraction wave statics correction, alternant iteration static method mention, can not solve the problem. A new kind of method - tomography inversion statics correction of shallow velocity model of first arrival wave is introduced, and its application effect in processing practical seismic data is well.
Static correction is the most typical problem in seismic processing in complex areas such as mountain, mountain front, low subweathered zone with sharp varying. It directly influences quality of seismic section, precision of interpretation and percent of well-drilling success. Ordinary static correction methods based on shallow velocity model and statistical analysis, for example elevation correction, short-refraction and refraction wave statics correction, alternant iteration static method mention, can not solve the problem. A new kind of method - tomography inversion statics correction of shallow velocity model of first arrival wave is introduced, and its application effect in processing practical seismic data is well.
引文
[1] 刘连生等．层析静校正技术在中国西部地区的应用．
[2] 刘连升，文忠平，沈时强．复杂近地表地区小折射低速带调查解决方案．石油物探信息报．
[2] 刘连升，文忠平，沈时强．复杂近地表地区小折射低速带调查解决方案．石油物探信息报．
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