东道海子北凹陷侏罗系以下多次波的特征  

CHARACTERISTICS OF MULTIWAVES OF PRE-JURASSIC STRATA IN THE DONGDAOHAIZIBEI SAG OF JUNGGAR BASIN

作　　者：文钢锋[1] 田世澄[1] 李培俊[2] 韩军[2] 

机构地区：[1]中国地质大学,北京100083 [2]新疆油田公司准东勘探开发研究所,831511

出　　处：《新疆石油天然气》2008年第1期11-15,共5页Xinjiang Oil & Gas

摘　　要：准噶尔盆地东道海子北凹陷具有很好的油气勘探前景,但由于侏罗系一下地层的实际地震反射波被侏罗系煤层的全程和层间多次波所掩盖,不能真实的反映地层的沉积、构造形态。地震反射中的多次波主要是由于侏罗系煤层的强反射波过于强,地震波在其中或其间形成比较强的折射和层间反射而形成。只有解决了多次波的问题,地层的沉积、构造特征才会更加清楚,才可以发现更多的地层、岩性、构造圈闭,指导准噶尔盆地东部的油气勘探。There is very good potential for oil and gas exploration in the Dongdaohaizibei Sag of Junggar Basin. But the seismic reflection waves of Pre-Jurassic strata were covered by long-range and interbedded multi-waves of Jurassic coals, and it can’t reveal the real sedimentary characters and structural styles of the Pre-Jurassic strata. Because the reflection waves of Jurassic coals are so strong that the deflection and interbedded reflection formed in them or between them and caused the multi-waves of seismic reflection. Only after solving the problems of the multi-waves, the sedimentary and structural characters of Pre-Jurassic strata will become clear, and more stratigraphic traps, lithologic traps and structural traps will be found easily. And the results can be used to instruct the exploration of oil and gas in the East of Junggar Basin.

关 键 词：多次波 速度 地震波 成因 

分 类 号：P631[天文地球—地质矿产勘探]