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- Only good angular trace gather in AVO technique can be used to determine petrophysical parameters and to detect oil or gas. 在AVO技术中,只有高质量的角道集才能确定岩石物理参数、进行油气检测。
- AVO analysis is conducted using CRP trace gather generated from prestack time migration instead of CDP trace gather, so the shortcoming of CDP trace gather is overcome, AVO attributes are in proper offset, and the boundary of gas reservoir is more clear. 利用叠前时间偏移产生的CRP道集代替CDP道集作AVO分析,克服了CDP道集的不足,使AVO属性得到偏移归位,气藏边界更加清楚。
- The offset panel allows correlation of a high amplitude reflection on a near trace with delayed refraction breaks on distant traces thus identifying the hazards. 由炮检距汇集图可将近道上的反射高振幅和远道上的折射延迟联系起来,从而确定危险区。
- Time-window fitting method is used to produce AVO attribute section (P andG sections) by taking time-window amplitude sequences within CDP trace gathers. 时窗拟合法是利用CDP道集内时窗振幅序列求取AVO属性剖面（P、G剖面）的一种方法。
- Keywords multiwave seismic survey;converted-wave;CCP trace gather;gas chimney; 多波地震;转换波;共转换点道集;“气烟囱”;
- His clinic is near the newly-built railway station. 他的诊所在新建的火车站附近。
- It's dangerous to be so near to the tiger. 离老虎那么近是很危险的。
- I was born in a small city near Guangzhou. 我出生在离广州不远的一个小城市。
- The rug singed because it was too near the fire. 地毯太靠近壁炉已烤焦了。
- I can't trace that letter you sent me. 我找不到你寄给我的那封信。
- The troops were entrenched near the mountains. 部队在群山边筑起壕沟以防卫自己。
- He spoke without a trace of emotion. 他说话时毫不动感情。
- The explosion toppled the near chimney. 这次爆炸把不远处的烟筒炸倒了。
- Did the police find any trace of the murderer? 警方找到凶手的行踪了吗？
- My son came near being run over by a truck. 我的儿子差点被大卡车辗过。
- They failed to find any trace of the runaways. 他们未能找到逃跑者的任何踪迹。
- The land flattens out near the coast. 海岸附近地势变得很平坦。
- There was barely a trace of salt in the soup. 汤里简直一点盐也没有放。
- The horse kicks when anyone comes near him. 那匹马每当有人走近时它都要踢跳。
- The post office tried to trace the lost letter. 邮局设法查出那封丢失的信。
