塔里木盆地火成岩发育区地震资料处理方法研究
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摘要
火成岩在塔里木盆地地下分布范围较广,火成岩发育严重影响地震资料的反射品质,为处理难点之一。地下火成岩体的发育,造成了其与上覆、下伏地震界面难于区分,二叠系火成岩发育,对志留系底界和泥盆系底界弱的反射界面的影响较大,反射同相轴连续性随火成岩的厚度和形态发生明显变化。通过塔里木盆地火成岩发育区地震资料分析和优化处理,获得了满足解释要求的处理效果。
The igneous rocks are widely distributed over Tarim Basin,the igneous rock growing severely influences the quality of seismic data reflection,which is one of the difficulties in processing.Its growing induces the overlying seismic interface hard to be distinguished from the underlying one,where Permian igneous rocks are developed,it severely influence the weak reflection interfaces of Silurian bottom interface and Devonian bottom interface,the continuity of the reflection event changes obviously with the thickness and style of igneous rock changes.Through seismic data process of igneous rock,growing area in Tarim Basin,the effect which can meet the requirement of interpretation is obtained.
The igneous rocks are widely distributed over Tarim Basin,the igneous rock growing severely influences the quality of seismic data reflection,which is one of the difficulties in processing.Its growing induces the overlying seismic interface hard to be distinguished from the underlying one,where Permian igneous rocks are developed,it severely influence the weak reflection interfaces of Silurian bottom interface and Devonian bottom interface,the continuity of the reflection event changes obviously with the thickness and style of igneous rock changes.Through seismic data process of igneous rock,growing area in Tarim Basin,the effect which can meet the requirement of interpretation is obtained.
引文
[1]张红斌,牛淑琴,邓小力.塔中西部火成岩特征及其地震假构造构造校正[J].海相油气地质,1999,4(3):55~60.
[2]陆基孟.地震勘探原理[M].北京:石油工业出版社,1982.
[2]陆基孟.地震勘探原理[M].北京:石油工业出版社,1982.
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