汪佳蓓;黄捍东;郭飞;

• 1:中国地质大学(北京)能源学院

• 2:中国石油大学(北京)油气资源与探测国家重点实验室

• 3:中国石油大学(北京)提高采收率研究院

• 4:中海石油深圳分公司研究院

摘要(Abstract)：

油气储层是典型的多相介质,目前油气检测中依据的单相介质理论容易造成预测结果的多解性。为了更准确地检测油气,以Biot双相介质理论为基础,推导吸收系数表达式,建立能量密度衰减方程,利用广义S变换对地震资料进行频谱分解,分析介质含不同流体后地震波各频率成分的衰减特征。结果表明:当双相介质中所含流体性质不同时,地震波的频率衰减也不尽相同,当储集层中含油气时,地震波频率衰减量显著增大,低频能量衰减小,高频能量衰减大,在频谱上表现为低频能量相对增强,高频能量相对减弱,整体能量向低频移动。对比实际工区的低、高频能量剖面和衰减剖面,将地震波的衰减规律运用到油气检测中取得较好的效果,理论模型和实际资料的运用表明该方法可行。

关键词(KeyWords)：地震波衰减;双相介质;吸收系数;能量密度衰减方程;广义S变换;油气检测

Abstract:

Keywords:

基金项目(Foundation):国家基础研究发展计划(973计划)项目(2011CB201104)

作者(Author):汪佳蓓;黄捍东;郭飞;

Email:

参考文献(References)：

• [1]Voigt W.Lehrbuch der kirstallphysik[M].Leipzig:Teubner Verlag,1928.

• [2]Reuss A.Berchung der fiessgrenze von mishchkristallen auf Grund der plastiziatsbedingung fur Einkristalle[J].Z Angew Math Mech,1929,9(1):49-58.

• [3]Hill R.A self-consistent mechanics of composite materials[J].Journal Mechanic Physic Solids,1965,13(4):213-222.

• [4]Gassmann F.Elastic waves through a packing of spheres[J].Geophysics,1951,16(4):673-685.

• [5]Biot M A.Theory of porpagation of elastic waves in a fluid-saturated porous solid:Low-frequency range[J].Acoust Soc Amer,1956,28(2):168-178.

• [6]Biot M A.Theory of porpagation of elastic waves in a fluid-saturated porous solid:High-frequency range[J].Acoust Soc Amer,1956,28(2):179-191.

• [7]Biot M A.Mechanics of deformations and acoustic propagation in porous media[J].J Appl Phy,1962,33(4):1482-1498.

• [8]Biot M A.Generalized theory of acoustic propagation in porous dissipative media[J].J Acoustl Soc,1962,34(9A):1254-1264.

• [9]Dvorkin J,Nur A.Dynamic poroelasticity:A unified model with the squirt and the Biot mechanisms[J].Geophysics,1993,58(4):524-533.

• [10]Parra J O.The transversely isotropic poroelastic wave equation including the Biot and the squirt mechanism:Theory and application[J].Geophysics,1994,62(1):309-318.

• [11]Dilay A,Eastwood J.Spectral analysis applied to seismic monitoring of thermal recovery[J].The Leading Edge,l995,14(11):1117-1122.

• [12]马昭军,刘洋.地震波衰减反演研究综述[J].地球物理学进展,2005,20(4):1074-1082.Ma Zhaojun,Liu Yang.A summary of research on seismic attenuation[J].Progress in Geophysics,2005,20(4):1074-1082.

• [13]李军,苏云,李录明.各向异性黏弹性介质波场数值模拟[J].大庆石油学院学报,2009,33(6):38-42.Li Jun,Su Yun,Li Luming.Wavefield numeric simulation in anisotropic viscoelastic media[J].Journal of Daqing Petroleum Institute,2009,33(6):38-42.

• [14]吴顺和,王云专,吴邕.地震波的正演和对地震波的新认识[J].大庆石油学院学报,1998,22(2):20-22.Wu Shunhe,Wang Yunzhuan,Wu Yi.Direct modelling of seismic waves and new cognition of seismic waves[J].Journal of Daqing Petroleum Institute,1998,22(2):20-22.

• [15]Castagna J P,Sun S,Siefried R W.Instantaneous spectral analysis:Detection of low-frequency shadows associated with hydrocarbons[J].The Leading Edge,2003,22(2):120-127.

• [16]Korneev V A,Goloshubin G M,Daley T M,et al.Seismic low-frequency effects in monitoring fluid-saturated reservoirs[J].Geophysics,2004,69(2):522-532.

• [17]Coloshubin G,VanSchuyver C,Korneev V,et al.Reservoir imaging using low frequencies of seismic reflections[J].The Leading Edge,2006,5:527-531.

• [18]撒利明,梁秀文,刘全新.一种基于多相介质理论的油气检测方法[J].勘探地球物理进展,2002,25(6):32-35.Sa Liming,Liang Xiuwen,Liu Quanxin.A multi-phase theory based hydrocarbon detection method[J].Oil Geophysical Prospecting,2002,25(6):32-35.

• [19]卢明辉,巴晶,杨慧珠,等.双相介质分界面上弹性波的反射与透射[J].地球物理学进展,2007,22(5):1439-1445.Lu Minghui,Ba Jing,Yang Huizhu,et al.Reflection and transmission of elastic waves from a boundary of two-phase media[J].Progess in Geophysics,2007,22(5):1439-1445.

• [20]He Zhenhua,Xiong Xiaojun,Bian Lien.Numerical simulation of seismic low-frequency shadows and its application[J].Applied Geophysics,2008,5(4):301-306.

• [21]董宁,杨立强.基于小波变换的吸收衰减技术在塔河油田储层预测中的应用研究[J].地球物理学进展,2008,23(2):533-538.Dong Ning,Yang Liqiang.Application of absorption and attenuation based on wavelet transform for prediction of reservoir in Tahe oilfield[J].Progess in Geophysics,2008,23(2):533-538.

• [22]李勇,陈洪德,许多,等.基于双相介质理论的油气检测方法及应用研究[J].西南石油大学学报:自然科学版,2010,32(3):1-5.Li Yong,Chen Hongde,Xu Duo,et al.Hydrocarbon detection methods based on dual phase media theory and its applications[J].Journal of Southwest Petroleum University:Science&Technology Edition,2010,32(3):1-5.

• [23]张会星,何兵寿,姜效典,等.利用地震波在双相介质中的衰减特性检测油气[J].石油地球物理勘探,2010,45(3):343-349.Zhang Huixing,He Bingshou,Jiang Xiaodian,et al.Utilizing attenuation characteristic of seismic wave in dual-phase medium to detect oil and gas[J].Oil Geophysical Prospecting,2010,45(3):343-349.

• [24]孙万元,张会星,孙杨,等.地震波衰减和频散属性的提取及其在油气检测中的应用[J].中国海洋大学学报:自然科学版,2013,43(10):83-87.Sun Wangyuan,Zhang Huixing,Sun Yang,et al.Apply s-transform to extract the attenuation and dispersion attributes of the seismic wave to detect oil and gas[J].Periodical of Ocean University of China:Science&Technology Edition,2013,43(10):83-87.

• [25]曹鉴华,苗志,王树平,等.长岭断陷深层火成岩储层含气性预测方法研究[J].特种油气藏,2009,16(6):38-41.Cao Jianhua,Miao Zhi,Wang Shuping,et al.Prognosis of gas-bearing capacity of deep igneous rock in Changling rift[J].Special Oil and Gas Reservoir,2009,16(6):38-41.

• [26]庞锐,刘百红,孙成龙,等.时频分析技术在地震勘探中的应用综述[J].岩性油气藏,2013,25(3):92-96.Pang Rui,Liu Baihong,Sun Chenglong,et al.Review on time-frequency analysis technique and its application in seismic exploration[J].Lithologic Reservoirs,2013,25(3):92-96.

• [27]范宇婷.黏性介质薄砂层时频特征响应分析[J].东北石油大学学报,2015,39(3):1-6.Fang Yuting,Analysis of time-frequency characteristics response to the thin layer in anelastic media[J].Journal of Northeast Petroleum University,2015,39(3):1-6.

• [28]刘继承,周全,葛晓龙,等.MP谱分解技术及其在地震信号处理中的应用[J].大庆石油学院学报,2010,34(5):157-164.Liu Jicheng,Zhou Quan,Ge Xiaolong,et al.MP spectrum analysis and its application in seismic signal processing[J].Journal of Daqing Petroleum Institute,2010,34(5):157-164.

• [29]胡水清,韩大匡,刘文岭,等.频谱分解技术在岩相建模中的应用[J].大庆石油学院学报,2008,32(3):1-4.Hu Shuiqing,Han Dakuang,Liu Wenling,et al.Application of spectrum decomposition technique in lithofacies modeling[J].Journal of Daqing Petroleum Institute,2008,32(3):1-4.

• [30]Stockwell R G,Mansinha L,Lowe R P.Localization of the complex spectrum:The S transform[J].IEEE Transactions on Signal Processing,1996,44(4):998-1001.

• [31]陈学华,贺振华,黄德济,等.时频域油气储层低频阴影检测[J].地球物理学报,2009,52(1):215-221.Chen Xuehua,He Zhenhua,Huang Deji,et al.Low frequency shadon detection of gas reservoirs in time-frequency domain[J].Chinese of Journal Geophysics,2009,52(1):215-221.

• [32]Lee M W.Biot-Gassmann theory for velocities of gas-hydrated bearing sediments[J].Geophysics,2002,67(6):1711-1719.