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Zoeppritz方程

Zoeppritz方程的相关文献在1999年到2022年内共计85篇,主要集中在石油、天然气工业、数学、物理学 等领域,其中期刊论文71篇、会议论文5篇、专利文献2099篇;相关期刊35种,包括地球物理学报、物探与化探、科学技术与工程等; 相关会议5种,包括中国地球物理学会第二十八届年会、中国石油学会第六届青年学术年会、中国石油学会东部地区第十三次物探技术研讨会等;Zoeppritz方程的相关文献由214位作者贡献,包括王玉梅、刘福平、孟宪军等。

Zoeppritz方程—发文量

期刊论文>

论文:71 占比:3.26%

会议论文>

论文:5 占比:0.23%

专利文献>

论文:2099 占比:96.51%

总计:2175篇

Zoeppritz方程—发文趋势图

Zoeppritz方程

-研究学者

  • 王玉梅
  • 刘福平
  • 孟宪军
  • 杨长春
  • 慎国强
  • 孙成禹
  • 周林
  • 孔庆丰
  • 宋建国
  • 张鹏飞
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 范晓辉; 杨景阳; 单博
    • 摘要: 地球物理反演的本质是利用物性和弹性参数揭示地下介质的属性和含油气特征。拉梅参数是储层预测和流体识别中最常用的弹性参数。根据纵、横波速度与拉梅参数的关系,基于Zoeppritz方程提出了一种新的以剪切模量、密度相对变化率为参量的反射系数方程,结合稀疏性原则和核模约束提高反演的横向连续性,添加先验信息约束,实现从叠前地震数据中直接提取剪切模量和密度信息,从而减少间接计算带来的累积误差,该反演方法比常规三参数反演具有更高的稳定性。建立4类AVO模型,分别利用该方法、Aki-Richards方程与Gray近似方程进行正演模拟、误差分析和条件数分析,结果表明了该方法的反演结果与原始数据吻合得更好且稳定性更高。基于最小二乘法对一维层状模型反演证明,该方法能更准确地反演μ、ρ,在井数据充裕的情况下,能够较准确获取拉梅常数λ。将该方法用于实际叠前地震数据反演,井位处的反演结果与测井曲线基本一致,能够准确识别岩性,为后续分析提供准确的弹性参数。
    • 张凌远; 张宏兵; 尚作萍; 严立志; 任权
    • 摘要: 目前通过Shuey近似式或Gray近似式及基追踪理论反演泊松比,或依据叠前反演获得的纵、横波速度计算纵横波速度比,但不可避免地降低了参数反演精度.为此,尝试通过精确的Zoeppritz方程直接反演纵横波速度比或泊松比.基于垂直入射反射系数和精确Zoeppritz方程的褶积模型,结合边界保护正则化建立叠前和叠后地震反演的目标函数,以降低反演不适定性的不利影响,并使用快速模拟退火算法进行全局非线性优化.由于多参数之间的量级差异以及多参数同步随机搜索增大了不确定性,在反演时通过在改进Fatti方程中引入密度与纵波速度、横波速度与纵波速度两个拟合式提高反演精度与稳定性.实际资料反演结果表明:精确Zoep-pritz方程直接反演纵横波速度比的精度明显高于间接反演,各参数反演结果与测井数据基本吻合;叠后反演获得的纵波速度和密度精度较高,叠前反演获得的纵横波速度比的精度高于叠后反演,18°~24°角度道集的反演效果好于3°?9°和33°?39°角度道集.
    • 宋建国; 郭毓; 冉然
    • 摘要: 杨氏模量和泊松比是表征岩石脆性、评价储层可压性以及描述储层流体特征的重要参数,叠前地震反演是从地震数据中得到此类参数的有效手段.常规的叠前地震反演方法多使用Zeopppritz方程的近似式计算反射系数,近似式的误差影响了反演结果的精度.针对这个问题,推导了比值均方根形式的杨氏模量、泊松比和密度的Zoeppritz方程,并基于广义线性反演构建了杨氏模量和泊松比直接反演方法,有效地避免了使用近似式的局限性,提高了反演的精度.模型测试和实际资料试算结果表明:采用比值均方根形式构建的反演流程稳定,能够从叠前地震数据中获得可信的杨氏模量、泊松比和密度,提供了一种可靠的杨氏模量和泊松比直接反演方法.%Young's modulus and Poisson's ratio are two important rock parameters to characterize reservoir properties.Pre-stack seismic inversion is an effective tool to deterime such parameters from seismic data.Conventional seismic pre-stack inversion methods are mostly based on approximate expressions of the Zoeppritz equation.The error caused by this approximation would affect the accuracy of inversion results.To address this issue,we deduce the Zoeppritz equation in the form of the root mean square ratio of Young's modulus,Poisson's ratio and density.With this equation we develop the direct inversion method for Young'modulus based on a generalized linear inversion algorithm,effectively avoiding the limitation of approximate equation and enhancing the accuracy of inversion.Tests on a model and real data show that this inversion method based on the root mean square ratios is able to obtain credible Young's modulus,Poisson's ratio and density from pre-stack seismic data,which offers a reasonable direct inversion method for Young's modulus and Poisson's ratio.
    • 刘欣欣; 尹燕欣; 栾锡武; 杨佳佳
    • 摘要: The characteristics of seismic waves propagating in reservoirs are complicatedly altered by factors such as lithology , pore structure and fluid properties .Based on the porous medium theory , the seismic reflection characteristics of the reservoir can be simulated and analyzed more effectively .The actual medium is equivalent to the porous media composed of solid matrix and pore fluid .Based on rock physical modeling , the quantitative rela-tionship between elastic parameters and physical parameters of fluid saturated reservoir is established .According to the Zoeppritz equation of porous media , the influence of physical parameters on the AVO characteristics of reflected waves are analyzed and compared with that of normalized amplitudes of forward-modeled CMP gathers based on the spherical wave theory .The results show that the reflection coefficients of porous media theory and normalized ampli-tudes are much closer , especially when the incidence angle is small .Changes of shale content or porosity lead to changes in the AVO type .Changes of fluid properties cause changes only in the AVO intercept to change , while the AVO type remains unchanged .The effect of pore fluid properties on AVO characteristics is much smaller than that of shale content or porosity .The method in this paper provides more reliable theoretical basis for fluid identification using seismic data .%在地层中传播的地震波特征受到岩性、孔隙结构、含流体性质等因素的复杂改造作用,孔隙介质理论可以更有效地模拟和分析储层的地震反射特征.将实际介质等效为固体基质和孔隙流体组成孔隙介质,按岩石物理建模方法,建立含流体储层弹性参数与物性参数之间的定量关系,根据孔隙介质的Zoeppritz方程详细讨论了几个典型储层物性参数变化对反射波AVO特征的影响,并将其与按球面波理论正演模拟计算的归一化振幅的AVO特征进行对比分析,发现孔隙介质理论的反射系数与归一化振幅更为接近,尤其是在入射角较小时.泥质含量和孔隙度可导致储层AVO类型发生变化,而孔隙流体性质变化引起AVO截距发生变化,但AVO类型基本不变.孔隙流体性质对AVO特征的影响相较于泥质含量和孔隙度要小得多.本文的方法为利用地震数据进行流体识别提供了更为可靠的理论依据.
    • 刘财; 裴思嘉; 郭智奇; 符伟; 张宇生; 刘喜武
    • 摘要: 地震AVO(amplitude versus offset)技术是一项利用振幅信息研究岩性、检测油气的地震勘探技术.常规方法基于Zoeppritz方程计算模型界面处的反射系数,而实际地下非均匀介质中地震反射特征不仅与入射角度、物性差异有关,还与入射波频率、地层厚度、薄互层结构等因素有关.为此,应用传播矩阵理论充分考虑与这些因素有关的调谐干涉等传播效应,针对实际数据计算非均匀地下介质的高精度合成地震记录,对比Zoeppritz方程、Shuey二项近似方程、Shuey三项近似方程以及传播矩阵算法的模拟效果.研究发现:在小角度入射时Zoeppritz方程、Shuey二项近似方程和Shuey三项近似方程的反射振幅和波形基本一致,大角度入射时Zoeppritz方程与Shuey三项近似方程接近;Zoeppritz算法的模拟结果在小角度入射和浅层情况下与传播矩阵算法差别较小,而在大角度入射和深层情况下与传播矩阵差别较大,说明层间多次波的调谐干涉等传播效应不可忽略.
    • 王若沣1; 瞿璇2; 李坤白3
    • 摘要: AVO技术是一种非常实用有效的地球物理勘探方法,对于寻找天然气藏有着独特的优势。以AVO技术的基本理论为基础,结合实际地质情况,应用Zoeppritz方程进行苏里格地区的正演模拟,并与实际道集资料、分偏移距叠加资料进行对比,结果显示对于分布稳定、厚度较大的含气储层而言,Ⅲ类AVO为最主要类型;对于厚度较小的储层而言,因受地震复合反射等因素的影响,也可能出现其他AVO类型。
    • 王秀姣; 黄家强; 姜仁; 曾庆才
    • 摘要: 针对目前AVO反演技术中普遍使用的Aki-Richards,Shuey和Hilterman近似式,以Zoeppritz方程的精确解为参照,针对4种常见的含气砂岩类型,分别利用3种近似式计算AVO响应,并绘出相对误差随入射角的变化曲线.通过对比与分析发现:Aki-Richards和Shuey近似式计算结果均较Zoeppritz方程精确解误差更小,Hilterman近似式计算结果误差较大;特别是在大角度入射时,Shuey近似式计算结果更为精确、稳定;不同储层条件下,3种近似式的误差百分比不同,曲线特征不一致,整体上3种近似式在第Ⅲ类AVO气藏条件下误差均较小,计算结果的精确度均较高.3种近似式对4种典型含气砂岩类型给出的定量分析结果为优选储层参数反演方法提供了理论依据.%Based on three common approximate formulas including Aki-Richards,Shuey and Hilterman in AVO inversion technology and four types of gas-bearing sandstone,three approximate formulas were calculated for AVO response in comparing with Zoeppritz exact value. Both relative error and incident angle curves were plotted. The results show that Aki-Richards and Shuey approximate formulas own lower approximate errors than that of Hilterman approximate formula for the interface of four class gas-bearing sandstone. The accuracy of Shuey formula rises with the increase of the incident angle. Under different reservoir condi-tions,three approximate formulas'calculation results possess different percentage errors and curve charac-teristics,and all approximate formulas are more applicable for the third type AVO response. Quantitative analysis result which is calculated by three approximate formulas in four types gas-bearing sandstones provides bene-ficial theoretical foundation for reservoir parameter inversion.
    • 冉然; 宋建国
    • 摘要: The main purpose of pre-stack seismic inversion lies in getting elastic parameters of underground media and then making liquid identification and reservoir description.In this paper the authors tried to eliminate the inherent trouble that long offset seismic data could not be used efficiently when the approximate Zoeppritz equation is adopted.The authors start with the Zoeppritz equation of P-wave and S-wave velocity and obtain the Zoeppritz equation of compressional and shear modulus.Then,with the new Zoeppritz equation,the authors start the direct compressional and shear modulus inversion based on the generalized linear inversion theory and apply the means to seismic data with all angles.Model and practical test shows that the method is stable and reasonable in obtaining the compressional and shear modulus,and can reduce the cumulative error which is caused by the common elastic inversion method.The result obtained by the authors provides good data basis for the liquid detection and identification.%叠前地震反演的主要目的是根据地震数据精确地求取地下介质的弹性参数,进而进行流体识别和油藏描述.常规叠前反演方法使用Zoeppritz方程近似式计算反射系数,但是含有丰富信息的大偏移距地震数据无法被有效利用,针对这个问题,将纵横波模量引入Zoeppritz方程,建立了基于Zoeppritz方程的纵横波模量广义线性反演方法,适用于大角度地震数据.模型测试和实际地震资料应用表明,此方法能够可靠的得到地下介质的纵横波模量,相对于间接反演减小了间接反演带来的累积误差,为后续流体识别和含油气检测提供了很好的数据基础.
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