海洋长排列单源单缆准三维窄方位地震资料处理技术

邓桂林, 丁龙翔, 李福元, 张宝金

The processing technology of narrow azimuth Quasi three-dimensional seismic data acquisition by single source and single long streamer system in marine seismic exploration

Gui-Lin DENG, Long-Xiang DING, Fu-Yuan LI, Bao-Jin ZHANG

表1 准三维地震采集参数

Table 1 Acquisition parameters for Quasi three dimensional seismic exploration

接收道数 480 道间距/m 12.5 覆盖次数 120 炮间距/m 25 采样率/ms 2 滤波高切频率 200 Hz/-370 dB 滤波低切频率 4 Hz/-3 dB 记录长度/s 8 震源容量/(cu.in.) 5080 工作压力/(p.s.i.) 2000 震源沉放深度/m 8-5-5-8 震源阵列激发延时/ms 2-0-0-2 电缆沉放深度/m 9 最小偏移距/m 175 原始面元大小/m 25(纵)×100(横) 面元重叠率 50%