Theories and method of fracture detection by down-going S-wave information from zero offset three-component VSP data were introduced. 介绍了利用纵波震源零井源距三分量VSP资料的下行横波信息对井旁裂缝进行检测的原理和实现方法。
The gas-bearing sandstone and water-bearing sandstone are characterized by negative P value of zero offset. 含气与含水砂岩的共同特征是零炮检距的振幅P都为负。
DC Component Time Constant and Zero Offset(ZO) Phenomena of Breaking Current for 1000 kV Circuit Breaker 1000kV交流断路器开断电流的直流分量时间常数和零偏现象
The pulse response test and theoretical model test show that this algorithm is consistent with kinematic principles of DMO for converted wave. The kinematic error is reduced and the data is corrected to zero offset. 脉冲响应试验和理论模型试验结果表明,本文的转换波DMO算法符合转换波的运动学原理,减少了运动学误差,达到了将非零炮检距的转换波数据校正到零偏移距的目的。
The paper gave the recurrence formula of reflection coefficients in a non zero offset condition by simplified Zoeppritz functions. 本文通过对Zoeppritz方程的简化,给出了非零炮检距条件下的反射系数递推公式。