储层砂岩纵波衰减的实验结果分析
|
摘要
在超声波频率下,利用脉冲透射法,探讨了实验室条件下流体饱和岩石的频散和衰减机制,对不同围限压力下的干燥和不同粘度流体饱和砂岩样品的衰减特征进行了系统的研究。给出了岩石样品衰减的测量方法,分别对干燥样品和流体饱和样品进行了频谱分析,对衰减机制进行了讨论。利用Biot流模型和BISQ模型分析了流体饱和岩石中与流体流动作用有关的衰减。定量分析了各种衰减机制对弹性波总衰减的相对贡献。讨论了将实验结果引入地震勘探时,与流体流动相关的各种衰减机制的适用性。
By using ultrasonic frequency,pulse transmission technique was used to probe the dispersion and attenuation mechanism of flu- id-saturated rock in laboratory.The attenuation characteristics of dry and different fluid-saturated sandstone samples under different confining pressure were studied.The method of measuring the at- tenuation of rock samples was introduced.Spectrum was analyzed on dry samples and fluid-saturated samples,and the attenuation mechanism discussed.Blot-flow model and BISQ model were sed to analyze the attenuation related to the fluid flowing in fluid-saturat- ed rock.The relative contribution of the attenuation mechanisms to the overall attenuation of elastic wave was quantitatively analyzed. The applicability of the attenuation mechanisms related to fluid flowing was discussed under the condition of introducing experi- mental results into practical seismic exploration.
By using ultrasonic frequency,pulse transmission technique was used to probe the dispersion and attenuation mechanism of flu- id-saturated rock in laboratory.The attenuation characteristics of dry and different fluid-saturated sandstone samples under different confining pressure were studied.The method of measuring the at- tenuation of rock samples was introduced.Spectrum was analyzed on dry samples and fluid-saturated samples,and the attenuation mechanism discussed.Blot-flow model and BISQ model were sed to analyze the attenuation related to the fluid flowing in fluid-saturat- ed rock.The relative contribution of the attenuation mechanisms to the overall attenuation of elastic wave was quantitatively analyzed. The applicability of the attenuation mechanisms related to fluid flowing was discussed under the condition of introducing experi- mental results into practical seismic exploration.
引文
1 Walsh J B.Seismic wave attenuation in rock due to friction[J].Journal of Geophysical Research,1966,71 (10):2 591～2 599
2 Toks(?)z M N,Johnson D H,Timur A.Attenuation of seismic waves in dry and saturated rocks,laboratory measurements[J].Geophysics,1979,44(4):681～690
3 Toks(?)z M N,Johnson D H,Timur A.Attenuation of seismic waves in dry and saturated rocks,mechanisms [J].Geophysics,1979,44(4):691～710
4 Blot M A.Theory of propagation of elastic waves in a fluid saturated porous solid,low frequency range and higher-frequency range[J].Journal of The Acoustical Society of America,1956,28(2):168～191
5 Biot M A.Mechanics of deformation and acoustic propagation in porous media[J].Journal of Applied Physics,1962,33(4):1 482～1 498
6 Dvorkin J,Nur A.Dynamic poroelasticity:a unified model with the Squirt flow and the Biot mechanism [J].Geophysics,1993,58(3):524～533
7 Dvorkin J,Nolen-Hoeksema R,Nur A.The Squirt flow mechanism:macroscopic description[J].Geo- physics,1994,59(3):428～438
8邓继新，王尚旭，俞军．频散作用对储层砂岩速度实验结果的影响分析[J]．石油物探，2005，44(4)：334～338
9朱建伟，何樵登，田志禹．基于BISQ机制的含油水孔隙介质地震波波动方程[J]．石油物探，2001，40(4)：8～13
10云美厚，杨凯，丁伟，等．水驱4D地震监测岩石物理研究综述[J]．石油物探，2004，43(3)：309～312
11 Yamakawa N.Scattering and attenuation of elastic waves[J].Geophysics Magazine,1962,31(1):63～103
12 Mavko G,Mukerji T,Dvorkin J.The rock physics handbook:tools for seismic analysis in porous media [M].New York:Cambridge University Press,1998. 1～339
13 Johnston D H,Toksoz M N.Ultrasonic P and S wave attenuation in dry and saturated rocks under pressure [J].Journal of Geophysical Research,1980,85(B4): 925～936
14邓继新．泥、页岩及储层砂岩声学性质实验与理论研究[D]．北京：北京大学，2003
15 Stoll R D,Bryan G M.Wave attenuation in saturated sediments[J].Journal of the Acoustical Society of A- merica,1970,47(5):1 440～1 447
2 Toks(?)z M N,Johnson D H,Timur A.Attenuation of seismic waves in dry and saturated rocks,laboratory measurements[J].Geophysics,1979,44(4):681～690
3 Toks(?)z M N,Johnson D H,Timur A.Attenuation of seismic waves in dry and saturated rocks,mechanisms [J].Geophysics,1979,44(4):691～710
4 Blot M A.Theory of propagation of elastic waves in a fluid saturated porous solid,low frequency range and higher-frequency range[J].Journal of The Acoustical Society of America,1956,28(2):168～191
5 Biot M A.Mechanics of deformation and acoustic propagation in porous media[J].Journal of Applied Physics,1962,33(4):1 482～1 498
6 Dvorkin J,Nur A.Dynamic poroelasticity:a unified model with the Squirt flow and the Biot mechanism [J].Geophysics,1993,58(3):524～533
7 Dvorkin J,Nolen-Hoeksema R,Nur A.The Squirt flow mechanism:macroscopic description[J].Geo- physics,1994,59(3):428～438
8邓继新，王尚旭，俞军．频散作用对储层砂岩速度实验结果的影响分析[J]．石油物探，2005，44(4)：334～338
9朱建伟，何樵登，田志禹．基于BISQ机制的含油水孔隙介质地震波波动方程[J]．石油物探，2001，40(4)：8～13
10云美厚，杨凯，丁伟，等．水驱4D地震监测岩石物理研究综述[J]．石油物探，2004，43(3)：309～312
11 Yamakawa N.Scattering and attenuation of elastic waves[J].Geophysics Magazine,1962,31(1):63～103
12 Mavko G,Mukerji T,Dvorkin J.The rock physics handbook:tools for seismic analysis in porous media [M].New York:Cambridge University Press,1998. 1～339
13 Johnston D H,Toksoz M N.Ultrasonic P and S wave attenuation in dry and saturated rocks under pressure [J].Journal of Geophysical Research,1980,85(B4): 925～936
14邓继新．泥、页岩及储层砂岩声学性质实验与理论研究[D]．北京：北京大学，2003
15 Stoll R D,Bryan G M.Wave attenuation in saturated sediments[J].Journal of the Acoustical Society of A- merica,1970,47(5):1 440～1 447
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心