塔西南柯东构造带二维资料叠前深度偏移处理、解释
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摘要
塔西南柯东构造带地表为巨厚黄土塬,资料信噪比极低,静校正问题突出,速度纵横向变化剧烈,准确成像难度很大。在该区成像攻关中,充分发挥了多系统综合处理优势,采取了处理解释一体化的攻关思路,应用了宽线静校正技术、多域叠前去噪技术、共反射面叠加、起伏地表叠前深度偏移技术等针对性技术,有效地提高了地震成像质量。通过精细解释研究,进一步明确了该区的构造特征,并落实了一批有利圈闭。
The earth's surface of Kedong tectonic zone is deep loess tableland, the seismic data has an extremely low signal to noise ratio and serious static correction problem. Its complex structure superposition makes the velocity change so violent that it's hard to get accurate imaging. We take full advantage of multiple seismic data processing system and take the study thought of joint processing and interpretation in imaging research. We effectively improve the quality of seismic imaging by taking advantage of wide-line static correction technology, multi-domain prestack noise attenuation technology, common reflection stack technology and fluctuant surface prestack deep migration technology. We further indicate the structural characteristics of the tectonic zone and confirm several favorable traps by fine interpretation research.
The earth's surface of Kedong tectonic zone is deep loess tableland, the seismic data has an extremely low signal to noise ratio and serious static correction problem. Its complex structure superposition makes the velocity change so violent that it's hard to get accurate imaging. We take full advantage of multiple seismic data processing system and take the study thought of joint processing and interpretation in imaging research. We effectively improve the quality of seismic imaging by taking advantage of wide-line static correction technology, multi-domain prestack noise attenuation technology, common reflection stack technology and fluctuant surface prestack deep migration technology. We further indicate the structural characteristics of the tectonic zone and confirm several favorable traps by fine interpretation research.
引文
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[3]张文生,张关泉,马在田.混合法三维平面波合成叠前深度偏移[J].自然科学进展,2004,14(2):223～226.
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