Seismic Imaging

为英特尔® 至强融合™ 协处理器开发地震成像代码的体验

本博客的目的是(作者Phil Thierry Leo Borges   英特尔 SSG 能源工程团队成员石油天然气技术领域)初步讨论如何研究三维地震波传播具体地说就是在全混合模式下研究一个、两个或多个英特尔® 至强融合处理器的逆时偏移(RTM)算法也就是充分利用 CPU 内核。

在英特尔® 集成众核架构(英特尔® MIC 架构)上优化地震成像处理

简介

地震成像的主要目标是详细地了解地下参数,以便定位特定目标。所有地震采集工作都从传播和反射(还有其它地震波现象)到地面的地震波入手。地震波反射是由于不同地层之间的强烈参数对比而产生的,如密度和压缩波速度。这些反射波将被地球表面或专用井内的水听器(海洋地震)或地音探听器(陆上地震)记录下来。

震源信号的初始频率及其相关波长在很大程度上决定了可能的探测深度,因为地面首先会显著降低最高频率,然后再减小可见对象,这是因为空间分辨率与频率组成密切相关。这便使地震成像有了多种用途,比如在土木工程行业中,通过使用从几厘米到几米的空间采样,可将目标定位到前几米到几百米之间。地震成像运用最广泛的莫过于石油与天然气行业,一个几米到 25 米的空间采样最多可将目标定位到地面以下 10 至 12 公里的位置。

  • Seismic Imaging
  • Intel® Many Integrated Core Architektur
  • Experiences in developing Seismic Imaging code for Intel® Xeon Phi™ Coprocessor

    The purpose of this blog (from: Phil Thierry and Leo Borges - part of the Intel SSG Energy Engineering Team and covering Oil and Gas technical activities ) is to start a discussion about implementation for 3D seismic wave propagation and. more specifically, for the Reverse Time Migration (RTM) algorithm as a whole on one, two or several Intel® Xeon Phi™ coprocessors in a full hybrid mode, i.e. including full utilization of the CPU cores.

    Optimize Seismic Image Processing on Intel® Many Integrated Core Architecture (Intel® MIC Architecture)

    Introduction

    The main goal of seismic imaging is to provide detailed knowledge of the subsurface parameters in order to localize a given target. Any seismic acquisition starts with the emission of waves that are propagating and reflecting (among other wave phenomena) into the ground. The wave reflections are generated by the strong parameter contrasts between layers, e.g., the density and the compression wave velocities. Those reflecting waves are then recorded by hydrophones (marine seismic) or geophones (land seismic) located on the earth’s surface or within a dedicated well.

  • Seismic Imaging
  • MKL in seismic image processing
  • MKL on MIC for siesmic imaging
  • Intel® Many Integrated Core Architektur
  • Seismic Imaging abonnieren