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使用横波可控震源获取纵波的资料 (Compressional-Wave Data Acqui-sition Using Shear-Wave Vibrators)P.Horvath,H.Y.Wang,M.C.Justice,Arco Oil ＆ Gas;D.H.Reed and R.ESchoel,Arco Exploration (S5.1) 纵波(P)和横波(S)的反射幅度比和层速比可能与岩性有关。但由于采集数据的费用问题,单独进行P波和S波的勘探受到了限制,本文研究一种使用横波振动器同时取得P波与S波资料的方法。在9口浅井中用三分量的地震检测装置记录横波可控震源的辐射信息。所记录的振动使之与大于可控震源操作频率一倍的合成扫描进行相关后,P波的信噪比有所提高,从分析的结果来
Compressional-Wave Data Acquisition Using Shear-Wave Vibrators P. Horvath, HY Wang, MC Augustust, Arco Oil & Gas; DH Reed and R. Echoel, Arco Exploration (S5. 1) The reflection amplitude ratio and velocity ratio of longitudinal (P) and transverse (S) waves may be related to lithology. However, due to the cost of collecting data, the exploration of P-wave and S-wave alone is limited. In this paper, a method of simultaneously acquiring P-wave and S-wave data by using a shear wave vibrator is studied. Three-component seismic detector was used to record the radiation information of transverse-wave vibroseis in nine shallow wells. The recorded vibration correlates with a synthetic sweep greater than twice the operating frequency of the vibroseis and the signal-to-noise ratio of the P-wave is increased. From the analysis results