三维叠前拼块处理技术在胜南-神泉三维地震资料连片精细处理中的应用

THE USE OF 3D PRESTACK JIGSAW TECHNIQUE IN THE FINE PROCESS OF THE SHENGNAN-SHENQUAN SEISMIC DATA

三维叠前拼块处理技术是解决几个区决之间因施工方位不同、施工因素不同拼接处理地震资料的理想技术。针对本拼块资料年度不同、激发条件不同的特点,资料处理的基本思路是:①全区统一观测系统定义;②干扰波压制;③全区统一三雏折射静校正计算;④子波处理技术;⑤全区三维地表一致性反射波剩余静校正;⑥三维DMO处理;⑦三维一步法偏移。应用该技术对巴喀-丘陵-鄯东-鄯南、红南-连木沁、胜南-神泉、三塘湖盆地的黑墩-牛东近千平方千米的三维资料进行大面积叠前拼块处理,都取得了较好的处理效果。

3-D pre-stack jigsaw process is a useful technique that can piece together split seismic data gained in different construction orientation and construction factors. The apphcation of this technology in piecing together BakaQiuling-Shandong-Sharman, Hongnan-Lianmuqin, Shengnan-Shenquan and Heidun-Niudong large scale3 D pre-stack data about one thousand square kilometers obtained good effect. The main procedures of this process include: ① unify layout system definition in the whole area; ② attenuate interfering wave; ③ unify 3D refraction static correction in the whole area; ④ wavelet process. ⑤ calculate residual static correction of the whole area. ⑥ 3-D DMO. ⑦ 3-D one-pass method migration