沙漠覆盖区的低幅度构造研究
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摘要
沙漠地震勘探受长波长静校正量影响及地震野外采集时间跨度长、采集、处理因素的改变，容易产生假构造或造成地震测线交点闭合差远大于真实有效圈闭的幅度，这给低幅度构造的识别及油气勘探带来较大风险。认为在认真分析长波长静校正及其它影响因素的基础上，用叠前深度偏移区域连片处理方法判别低幅度构造，再结合钻井，落实有效的低幅度构造，就能获得工业油气储量和带来经济效益
Effected by static correction magnitude of long wavelength seismic data, long
seismic data acquisition time in field and data acquisition and processing, pseudostructure was
easy to be interpreted in desert seismic exploration, or closure difference of intersection point
of seismic survey line far exceeds the scope of real effective trap. So it is different to identify
lowextent structures in seismic profile and greater risk was resulted in seismic exploration.
This paper suggested that based on careful analysis of static correction of long wavelength and
other factors, lowextent structures are identified with prestack depthmigration and regional
seismic data processing method, combining with drilling data, commercial petroleum reserves
and better economic benefit can be obtained.
Effected by static correction magnitude of long wavelength seismic data, long
seismic data acquisition time in field and data acquisition and processing, pseudostructure was
easy to be interpreted in desert seismic exploration, or closure difference of intersection point
of seismic survey line far exceeds the scope of real effective trap. So it is different to identify
lowextent structures in seismic profile and greater risk was resulted in seismic exploration.
This paper suggested that based on careful analysis of static correction of long wavelength and
other factors, lowextent structures are identified with prestack depthmigration and regional
seismic data processing method, combining with drilling data, commercial petroleum reserves
and better economic benefit can be obtained.
引文
］曹统仁地震资料解释与储层横向预测，西南石油学院学报，1997，4［2］庞雄奇，陈章明，王江，等地震层速度精度分析及其在油气勘探中的应用，石油地球物理勘探，1990，4［3］熊翥地震数据处理应用技术，石油工业出版社（北京），1993，10
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