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与常规的二维和三维地震相比,并间地震资料处理具有不同的特点。鉴于井间地震通常采用三分量观测,直达纵波在X与y分量上强,X分量上弱;而直达横渡在X分量上强,在X与y分量上弱。所以在资料处理时,首先分离纵横渡,然后分别实施:①利用初至波旅行时信息,通过层析及演,得到井间介质层速度空间分布剖面后对上行和下行的反射波进行类似于VSPCDP的专项处理,产生一个井间的反射波归位成像剖面。通过对实际井间地震资料的处理,表明用目前所研究的处理方法、软件和流程,可以获得井间的高分辨率的层析成像图和反射成像剖面。
Compared with the conventional two-dimensional and three-dimensional earthquakes, the inter-seismic data processing has different characteristics. Since the cross-section earthquakes usually use three-component observations, the direct longitudinal waves are strong on the X and Y components and weak on the X components; whereas the direct components are strong on the X components and weak on the X and Y components. Therefore, in data processing, the vertical and horizontal transitions are firstly separated and then implemented separately: (1) The upstream and downstream reflected waves are obtained by using the information of first-arrivals travel, VSPCDP special treatment, resulting in a cross-well reflection wave-back imaging section. Through processing the actual cross-well seismic data, it is shown that the well-to-well high-resolution tomographic and reflection imaging profiles can be obtained by using the processing methods, software and processes currently studied.