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陆上地震观测常常沿非直线剖面施工,熟悉的例子有受公路网或地形限制的弯曲剖面,炮点偶而有横向偏移的非线性剖面,以及故意设计的三维或宽线观测。由于非线性爆炸,就在估算地表剩余时间异常中引进了一个复杂的因素——横向倾角。横向倾角是倾角在垂直炮点方向的分量。我们已将横向倾角的影响合并入模拟剩余静校正的联立方程中。选来分析的所有反射层观测旅行时反映了炮点和接收点静校正、构造形态、剩余动校正以及横向倾角的线性和。静校正分量取决于地表条件,同反射层无关,而其它待解参数则都是地下因素并取决于特定的反射层。不幸的是方程中有横向倾角,增加了剩余静校正的多解性。然而,凡是有不同横向倾角的反射层要联立解析,把它包含在内都是必需的。这种联立解析往往是提高互相关估算(也即旅行时的观测值)可靠性的重要手段,所有静校正都以此为基础。合成记录的例子说明了横向倾角估算值和静校正估算值能够彼此分离的程度。虽然横向倾角估算值是一项有用的成果,但静校正质量则是首要的。当所述横向倾角在静校正解中被忽略时,正如野外剖面对比处理所表明的,共深度点迭加的质量就要受损害。此外,如果横向倾角和静校正不统一考虑求解,三维或宽线观测的横向倾角估算就成问题。
Inshore seismological observations are often constructed along non-rectilinear sections, examples of which are curvilinear sections that are limited by road networks or topography, non-linear sections that are occasionally and laterally deviated from shots, and intentionally designed three-dimensional or wide-line observations. Due to the non-linear explosion, a complex factor was introduced in estimating the anomalies in the remaining time of the surface - the lateral dip. The horizontal dip is the component of the dip angle in the direction of the vertical shot point. We have incorporated the effects of lateral dip into the simultaneous equations simulating residual statics. All reflections selected for the observation trip reflect the linear sum of the shot and receiver static corrections, tectonic forms, residual maneuvers, and lateral dip. Static correction components depend on the surface conditions, regardless of the reflector, while other parameters to be solved are all subsurface and depend on the particular reflector. Unfortunately, there is lateral dip in the equation, increasing the multiplicity of residual statics. However, it is essential that any reflective layer with different lateral inclination should be interpreted analytically to include it. Such simultaneous analysis is often an important means of improving the reliability of cross-correlation estimates (ie observations at the time of travel), and all static corrections are based on this. An example of a composite record illustrates the extent to which lateral dip estimates and static correction estimates can be separated from each other. While lateral dip estimation is a useful outcome, statically correct quality is paramount. When the lateral dip is neglected in the static correction solution, as indicated by the field profile comparison processing, the quality of the overlap of the total depth points is compromised. In addition, if the horizontal dip and static correction are not considered uniformly, the estimation of the horizontal dip of 3D or wide-line observations becomes problematic.