测井技术2025，Vol.49Issue(2)：152-163,170,13.DOI:10.16489/j.issn.1004-1338.2025.02.002
三维井筒声场模拟多GPU并行算法研究与实现
Study and Implementation of Multi-GPU Parallel Algorithm for 3D Borehole Acoustic Field Simulation
摘要
Abstract
Borehole acoustic measurements are essential in the exploration and development of resources such as oil,gas,and geothermal energy.Three-dimensional numerical simulation allows for the analysis of how complex borehole environments influence the acoustic wave propagation,providing a foundation for accurate inversion of elastic properties of formation and cement annulus.However,the current finite difference methods for simulating elastic waves often require significant computational resources,especially when handling large-scale three-dimensional models,leading to substantial increases in both computation time and storage requirements.This paper proposes a multi graphics processing unit(GPU)parallel numerical simulation algorithm based on CUDA(Compute Unified Device Architecture)for simulating the acoustic field in a 3D borehole environment.Using the simulation of ultrasonic guided waves in a cased well as an example,the algorithm efficiently divides the model,allocates resources,and coordinates computations to leverage the computational power of multiple GPUs.The results demonstrate that the algorithm achieves a speedup of 8.93 for small-scale models on a single GPU and a speedup of up to 9.95 for large-scale models when using four GPUs.The multi-GPU parallel algorithm proposed in this study provides an efficient solution for the numerical simulation of complex 3D borehole wave fields and offers new insights for acoustic logging simulations based on high-performance GPU parallel computing.关键词
声波测井/井筒声场/三维弹性波有限差分/多GPU并行计算Key words
acoustic logging/borehole acoustic field/3-Dimensional finite difference elastic wave propagation simulation/multi-GPU parallel algorithm分类
天文与地球科学引用本文复制引用
王华,何伟丙,强晓勇,汪强,黄方,李萌..三维井筒声场模拟多GPU并行算法研究与实现[J].测井技术,2025,49(2):152-163,170,13.基金项目
国家自然科学基金项目"套管井非轴对称超声声场特征与数据处理方法研究"(41974150) （41974150）
国家自然科学基金项目"套管井非轴对称声场特征及水泥环空速度剖面智能成像方法研究"(42174158) （42174158）
国家自然科学基金项目"非轴对称双层套管井声场特征分析及实验研究"(42474167) （42474167）
