Abstract

Today, the exploration of the Arctic region is one of the most important direction of research in our country, because large amounts of unexplored oil and gas deposits are located there. Large hydrocarbon deposits are situated within the Northern seas. Their development is complicated by gas explosions resulting from an accidental opening and further spread of the gas. Since the region with gas layers cannot be frequently monitored, an area with already detected gas deposits is numerically modeled instead. In this work, seismic waves propagating in multilayered geological models with gas-containing inclusions were numerically modeled over a four-year interval by applying the grid-characteristic method. Wave patterns of seismic reflections and seismograms for the described problem were obtained. The wave patterns and seismograms obtained in the two- and three-dimensional cases were compared. The results were found to be in good agreement.

中文翻译：

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含气层的多层介质中波过程的数值模拟：2D和3D模型的比较

摘要

如今，北极地区的勘探已成为我国最重要的研究方向之一，因为那里有大量未勘探的油气藏。大型碳氢化合物沉积物位于北海之内。由于气体的意外打开和进一步扩散而导致的气体爆炸，使它们的发展变得复杂。由于不能经常监视带有气体层的区域，因此对已经检测到气体沉积的区域进行数值模拟。在这项工作中，通过应用网格特征方法，在四年的时间间隔内对包含气体夹杂物的多层地质模型中传播的地震波进行了数值模拟。获得了描述问题的地震反射和地震图的波形。比较了在二维和三维情况下获得的波型和地震图。发现结果非常吻合。