摘要
本文针对准噶尔盆地玛湖斜坡区地表地震条件和地质任务要求,提出地震数据连片处理中的静校正建模方法。该方法以全区野外静校正量为控制网格,以折射静校正量为主,进行综合静校正建模,从而解决了该区三块三维地震资料的拼接问题(无闭合差,无相位差),同时查清了该区的小幅度构造、地层不整合关系、断层位置,确保了三块三维地震资料拼接处构造的真实性。此外在三块三维工区拼接处还发现了玛005井北三叠系百口泉组3砂层组岩性地层圈闭,展示了该区良好的油气勘探前景。
In view of surface seismic conditions and requirement of geologic task in Mahu slope area of Jungar basin, the paper presented model-building method of static corrections in seismic data pieces-jointed processing. Taking field statics in whole work area as controlling grid, the method mainly uses the refraction statics for integrative static corrections model-building, so that solved the issue to put three blocks of 3-D seismic data together side by side (without mis-tie and phase difference) and clarified low-amplitude structures, stratigraphic unconformity relationship and fault location in the area, at the same time, ensuring the structural reality in juncture region of three blocks of 3-D seismic data. Meanwhile, the Triassic Baikouquan Formation 3-rd sand Member litho-stratigraphic traps of northern Ma 005 well in juncture region of three blocks of 3-D seismic work areas were discovered, displaying good oil/gas exploration prospect in the region.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2006年第4期375-382,共8页
Oil Geophysical Prospecting
关键词
岩性油气藏
连片处理
野外静校正
折射静校正
静校正建模
lithologic oil/gas reservoir, pieces-jointed processing, field static correction, refraction static correction, static correction model building
