岩性油气藏 ›› 2022, Vol. 34 ›› Issue (1): 148153.doi: 10.12108/yxyqc.20220115
张猛
ZHANG Meng
摘要: 常规逆时偏移算法(RTM)在浅层成像中容易产生较强的低频噪声,无法消除地球介质的吸收衰减效应。基于广义标准线性固体模型,建立黏声波动方程,在Born正演和梯度计算2个核心算法过程中开展了GPU加速,建立了黏声最小二乘逆时偏移实现流程,并将该方法应用在胜利油田某探区三维资料中,结果显示,计算效率和偏移成像质量都得到了有效提升。并且开展了与常规声波最小二乘逆时偏移的对比和分析工作,结果表明该方法对提升深层储层成像精度,实现真振幅成像,以及岩性油气藏的勘探都具有重要的意义。
中图分类号:
[1] 陈可洋.逆时成像技术在大庆探区复杂构造成像中的应用. 岩性油气藏, 2017, 29(6):91-100. CHEN K Y. Application of reverse-time migration technology to complex structural imaging in Daqing exploration area. Lithologic Reservoirs, 2017, 29(6):91-100. [2] 陈可洋, 陈树民, 李来林, 等.地震波动方程方向行波波场分离正演数值模拟与逆时成像.岩性油气藏, 2014, 26(4):130-136. CHEN K Y, CHEN S M, LI L L, et al. Directional one-way wave field separating numerical simulation of the seismic wave equation and reverse-time migration. Lithologic Reservoirs, 2014, 26(4):130-136. [3] TRAANTOLA A. Inversion of seismic reflection data in the acoustic approximation. Geophysics, 1984, 49(8):1259-1266. [4] TARANTOLA A. Theoretical background for the inversion of seismic waveforms,including elasticity and attenuation//AKI K, WU R S. Scattering and attenuation of seismic waves, Part I. Basel:Birkhäuser, 1988:365-399. [5] TARANTOLA A. Linearized inversion of seismic reflection data. Geophysical Prospecting, 1984, 32(6):998-1015. [6] BAMBERGER A, CHAVENT G, HEMON C, et al. Inversion of normal incidence seismograms. Geophysics, 1982, 47(5):757-770. [7] NEMETH T, WU C, SCHUSTER G T. Least-squares migration of incomplete reflection data. Geophysics, 1999, 64(1):208-221. [8] CHAVENT G, PLESSIX R. An optimal true-amplitude leastsquares pre-stack depth-migration operator. Geophysics, 1999, 64(2):508-515. [9] 刘梦丽, 徐兴荣, 王小卫, 等. 预条件弹性介质最小二乘逆时偏移.岩性油气藏, 2020, 32(5):133-142. LIU M L, XU X R, WANG X W, et al. Preconditioning elastic least-squares reverse time migration. Lithologic Reservoirs, 2020, 32(5):133-142. [10] 刘桓, 苏勤, 曾华会, 等. 近地表Q补偿技术在川中地区致密气勘探中的应用.岩性油气藏, 2021, 33(3):104-112. LIU H, SU Q, ZENG H H, et al. Application of near-surface Q compensation technology in tight gas exploration in central Sichuan Basin. Lithologic Reservoirs, 2021, 33(3):104-112. [11] AKI K, RICHARDS P G. Quantitative seismology. San Francisco:W. H. Freeman & Co, 1980. [12] AKI K, BOUCHON M, REASENBERG P. Seismic source function for an underground nuclear explosion. Bulletin of the Seismological Society of America, 1974, 64(1):131-148. [13] AKI K. Analysis of the seismic coda of local earthquakes as scattered waves. Journal of Geophysical Research, 1969, 74(2):615631. [14] MULDER W A, HAK B. An ambiguity in attenuation scattering imaging. Geophysical Journal International, 2009, 178(3):1614-1624. [15] HAK B, MULDER W A. Migration for velocity and attenuation perturbations. Geophysical Prospecting, 2010, 58(6):939-951. [16] 王雪君, 任浩然, 江金生, 等.基于点扩散函数的黏声介质反演成像.石油物探, 2019, 58(1):78-87. WANG X J, REN H R, JIANG J S, et al. Inversion imaging based on point spreading function for visco-acoustic medium. Geophysical Prospecting for Petroleum, 2019, 58(1):78-87. [17] 李振春, 郭振波, 田坤.黏声介质最小平方逆时偏移.地球物理学报, 2014, 57(1):214-228. LI Z C, GUO Z B, TIAN K. Least-squares reverse time migration in visco-acoustic medium. Chinese Journal of Geophysics, 2014, 57(1):214-228. [18] 赵磊, 王华忠, 刘守伟.逆时深度偏移成像方法及其在CPU/GPU异构平台上的实现.岩性油气藏, 2010, 22(增刊1):36-41. ZHAO L, WANG H Z, LIU S W. Reverse time migration method and its implementation on CPU/GPU heterogeneous platform. Lithologic Reservoirs, 2010, 22(Suppl 1):36-41. [19] MICIKEVICIUS P. 3D finite difference computation on GPUs using CUDA. Washington:Proceedings of 2nd Workshop on General Purpose Processing on Graphics Processing Units, GPGPU, 2009. [20] ZHANG M, SUI Z Q, WANG H Z, et al. Full waveform inversion on CPU/GPU heterogeneous platform and its application on land datasets. Beijing:2014 International Geophysical Conference & Exposition, 2014. [21] 郭振波, 李振春.最小平方逆时偏移真振幅成像.石油地球物理勘探, 2014, 49(1):113-120. GUO Z B, LI Z C. True-amplitude imaging based on least-squares reverse time migration. Oil Geophysical Prospecting, 2014, 49(1):113-120. [22] CAUSSE E, URSIN B. Visco-acoustic reverse-time migration. Journal of Seismic Exploration, 2000, 9(2):165-183. [23] CHAVENT G, PLESSIX R E. An optimal true-amplitude leastsquares pre-stack depth-migration operator. Geophysics, 1999, 64(2):508-515. [24] 崔宏良, 刘占军, 万学娟, 等. 拟合Q体建模技术及应用.岩性油气藏, 2015, 27(3):94-97. CUI H L, LIU Z J, WAN X J, et al. Application of fitting stereoscopic Q modeling technology. Lithologic Reservoirs, 2015, 27(3):94-97. [25] 李庆忠.走向精确勘探的道路.北京:石油工业出版社, 1993. LI Q Z. The way to precise exploration. Beijing:Petroleum Industry Press, 1993. |
[1] | 刘丽. 埕岛油田馆陶组曲流河砂体叠置模式[J]. 岩性油气藏, 2019, 31(1): 40-48. |
[2] | 邓帅, 刘学伟, 王祥春. 上覆水平界面对目的层地震波振幅的影响[J]. 岩性油气藏, 2017, 29(3): 118-125. |
[3] | 陈可洋. 各向异性弹性介质方向行波波场分离正演数值模拟[J]. 岩性油气藏, 2014, 26(5): 91-96. |
[4] | 陈可洋,陈树民,李来林,吴清岭,范兴才,刘振宽. 地震波动方程方向行波波场分离正演数值模拟与逆时成像[J]. 岩性油气藏, 2014, 26(4): 130-136. |
[5] | 吕姗姗,熊晓军,贺振华. 基于波动方程的AVO 模型数值模拟方法研究[J]. 岩性油气藏, 2011, 23(6): 102-105. |
[6] | 陈可洋. 井间弹性波波场散射特征数值模拟分析[J]. 岩性油气藏, 2011, 23(3): 91-96. |
[7] | 边立恩, 贺振华, 黄德济. 饱含流体介质的地震波场特征及频率分布[J]. 岩性油气藏, 2008, 20(3): 74-78. |
[8] | 杨午阳, 杨文采, 刘全新, 王西文. 三维F-X域粘弹性波动方程保幅偏移方法[J]. 岩性油气藏, 2007, 19(1): 86-91. |
|