When present, surface-consistent (shot and/or receiver) phase instability will generate surface-consistent time shifts that are at least partially removed from seismic data when surface-consistent residual statics corrections are applied. The phase instability will not be fully corrected and lingers undetected in the data throughout the remainder of the processing workflow. After processing finishes, seismic interpreters often need to apply laterally varying phase rotations to tie their onshore 3D seismic data to synthetic seismograms, before starting detailed stratigraphic interpretation projects. We have developed and tested a new surface-consistent seismic processing workflow that can be applied to increase the phase stability of our seismic data. It is run after the final pass of conventional surface-consistent residual shot and receiver statics corrections have been applied to optimally align the seismic traces. The phase stability corrections are estimated from an additional pass of surface-consistent residual shot and receiver statics corrections that are calculated on the phase-independent seismic trace envelopes. We demonstrate the application of the workflow using synthetic and real seismic data. We gained confidence that the workflow was performing as expected after we intentionally phase rotated a small subset of the shots and receivers in our seismic test data sets and observed that the workflow corrected these intentionally phase-rotated traces with a high level of accuracy.

中文翻译：

---

稳定陆上3D地震数据的相位

当存在时，地表一致的（发射和/或接收器）相位不稳定性将产生地表一致的时移，当应用地表一致的残余静校正时，该时移至少部分地从地震数据中移除。在整个处理工作流程的其余部分中，相位不稳定性将无法得到完全纠正，并且数据中也不会检测到延迟。处理完成后，在开始详细的地层解释项目之前，地震解释人员通常需要应用横向变化的相位旋转将其陆上3D地震数据与合成地震图联系起来。我们已经开发并测试了一种新的表面一致的地震处理工作流程，该工作流程可用于提高地震数据的相位稳定性。它是在常规表面一致残留散粒的最后一次通过之后进行的，并且已应用接收器静态校正来最佳地对准地震道。相位稳定性校正是通过对与表面无关的地震迹线包络进行计算的表面一致性残留散粒和接收器静校正的额外通过来估计的。我们使用合成和真实地震数据演示了工作流程的应用。我们有信心在我们有意对地震测试数据集中的一小部分子弹和接收器进行相位旋转后，观察到工作流以较高的准确性纠正了这些有意对相位旋转的迹线，因此工作流按预期运行。相位稳定性校正是通过对与表面无关的地震迹线包络进行计算的表面一致性残留散粒和接收器静校正的额外通过来估计的。我们使用合成和真实地震数据演示了工作流程的应用。我们有信心在我们有意对地震测试数据集中的一小部分子弹和接收器进行相位旋转后，观察到工作流以较高的准确性纠正了这些有意对相位旋转的迹线，因此工作流按预期运行。相位稳定性校正是通过对与表面无关的地震迹线包络进行计算的表面一致性残留散粒和接收器静校正的额外通过来估计的。我们使用合成和真实地震数据演示了工作流程的应用。我们有信心在我们有意对地震测试数据集中的一小部分子弹和接收器进行相位旋转后，观察到工作流以较高的准确性纠正了这些有意对相位旋转的迹线，因此工作流按预期运行。