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1. 发明申请

WO2018175013A1 FULL WAVEFIELD INVERSION WITH REFLECTED SEISMIC DATA STARTING FROM A POOR VELOCITY MODEL 审中-公开
公开(公告)号：WO2018175013A1
公开(公告)日：2018-09-27
申请号：PCT/US2018/017749
申请日：2018-02-12
申请人： EXXONMOBIL UPSTREAM RESEARCH COMPANY , AKCELIK, Volkan , BAUMSTEIN, Anatoly, I. , BRYTIK, Valeriy, V. , LEE, Sunwoong , TANG, Yaxun
发明人： AKCELIK, Volkan , BAUMSTEIN, Anatoly, I. , BRYTIK, Valeriy, V. , LEE, Sunwoong , TANG, Yaxun
IPC分类号： G01V1/28 , G01V1/30
CPC分类号： G01V1/282 , G01V1/303 , G01V1/306 , G01V99/005 , G01V2210/614 , G01V2210/6222 , G01V2210/6224 , G01V2210/6226 , G01V2210/675
摘要： A computer-implemented method for updating subsurface models including: using an offset continuation approach to update the model, and at each stage defining a new objective function where a maximum offset for each stage is set, wherein the approach includes, performing a first stage iterative full wavefield inversion with near offset data, as the maximum offset, to obtain velocity and density or impedance models, performing subsequent stages of iterative full wavefield inversion, each generating updated models, relative to a previous stage, wherein the subsequent stages include incrementally expanding the maximum offset until ending at a full offset, wherein a last of the stages yields finally updated models, the subsequent stages use the updated models as starting models, and the full wavefield inversions include constraining scales of the velocity model updates at each stage of inversion as a function of velocity resolution; and using the finally updated models to prospect for hydrocarbons.

2. 发明申请

WO2018031113A1 TOMOGRAPHICALLY ENHANCED FULL WAVEFIELD INVERSION 审中-公开
标题翻译：层析增强的全波段反演
公开(公告)号：WO2018031113A1
公开(公告)日：2018-02-15
申请号：PCT/US2017/036088
申请日：2017-06-06
申请人： EXXONMOBIL UPSTREAM RESEARCH COMPANY , TANG, Yaxun , LEE, Sunwoong , BAUMSTEIN, Anatoly, I. , AKCELIK, Volkan
发明人： TANG, Yaxun , LEE, Sunwoong , BAUMSTEIN, Anatoly, I. , AKCELIK, Volkan
IPC分类号： G01V1/28
CPC分类号： G01V1/282 , G01V1/303 , G01V1/364 , G06F17/10 , G06F17/50
摘要： A computer-implemented method for updating a physical properties model of a subsurface region in an iterative inversion of seismic data using a gradient of a cost function that compares the seismic data to model-simulated data, said method comprising: obtaining a contrast model of a subsurface physical parameter that is sensitive to data dynamics and a kinematic model of a subsurface physical parameter; determining a gradient of a cost function using the contrast model and the kinematic model, wherein the cost function compares seismic data to model-simulated data; updating the kinematic model using a search direction derived from the gradient; adapting the contrast model according to an update to the kinematic model performed in the updating step; iteratively repeating the determining, updating, and adapting steps until a predetermined stopping criteria is reached, and generating a subsurface image from a finally updated kinematic model; and using the subsurface image to prospect for hydrocarbons.
摘要翻译：一种计算机实现的方法，用于使用成本函数的梯度来更新地震数据的迭代反演中的地下区域的物理性质模型，所述成本函数将地震数据与模型模拟数据进行比较，所述方法包括：获得对数据动力学敏感的地下物理参数的对比模型和地下物理参数的运动学模型; 使用对比模型和运动学模型确定成本函数的梯度，其中成本函数将地震数据与模型模拟数据进行比较; 使用从梯度导出的搜索方向来更新运动学模型; 根据更新步骤中对运动学模型的更新来调整对比度模型; 迭代地重复所述确定步骤，更新步骤和适配步骤，直到达到预定的停止标准，并且从最终更新的运动学模型生成地下图像; 并使用地下图像寻找碳氢化合物。

3. 发明申请

WO2017189180A8 FWI WITH AREAL AND POINT SOURCES 审中-公开
公开(公告)号：WO2017189180A8
公开(公告)日：2017-11-02
申请号：PCT/US2017/025706
申请日：2017-04-03
申请人： EXXONMOBIL UPSTREAM RESEARCH COMPANY , BAUMSTEIN, Anatoly, I. , YANG, Di , VDOVINA, Tetyana , TANG, Yaxun
发明人： BAUMSTEIN, Anatoly, I. , YANG, Di , VDOVINA, Tetyana , TANG, Yaxun
IPC分类号： G01V1/30
摘要： A method, including performing, with a computer, up/down separation of geophysical data, which produces an approximate up-going wavefield and an approximate down-going wavefield; creating an areal source based at least in part on the down-going wavefield; and performing, with a computer, a full wavefield inversion process with the areal source, and an objective function measuring a misfit between modeled up-going wavefields and recorded up- going wavefields, wherein the full wavefield inversion process generates a final subsurface physical property model.

4. 发明申请

WO2018013257A1 JOINT FULL WAVEFIELD INVERSION OF P-WAVE VELOCITY AND ATTENUATION USING AN EFFICIENT FIRST ORDER OPTIMIZATION 审中-公开
标题翻译：利用有效的一阶优化法进行P波速度衰减的联合全波场反演
公开(公告)号：WO2018013257A1
公开(公告)日：2018-01-18
申请号：PCT/US2017/036089
申请日：2017-06-06
申请人： EXXONMOBIL UPSTREAM RESEARCH COMPANY , TAN, Sirui , TANG, Yaxun , BAUMSTEIN, Anatoly, I. , AYENI, Gboyega , VDOVINA, Tetyana , DICKENS, Thomas, A.
发明人： TAN, Sirui , TANG, Yaxun , BAUMSTEIN, Anatoly, I. , AYENI, Gboyega , VDOVINA, Tetyana , DICKENS, Thomas, A.
IPC分类号： G01V1/28
摘要： A method for iteratively inverting seismic data to jointly infer a model for at least P- wave velocity and attenuation parameters of the subsurface, the method including: jointly inverting the P-wave velocity and attenuation parameters with an iterative visco-acoustic full wavefield inversion process, wherein the iterative visco-acoustic full wavefield inversion process includes computing a gradient of an objective function, the objective function measuring a misfit between all or part of the seismic data and corresponding model-simulated seismic data; for each of the P-wave velocity and attenuation parameters, computing a search direction in model space from the gradient; determining line search step sizes α and β for the search directions for the P-wave velocity and attenuation parameters, respectively, wherein a ratio of the step sizes is a function of the P-wave velocity parameter; and using the step sizes α and β and the search directions for each of the P-wave velocity and attenuation parameters, computing a new search direction in model space, then performing a line search along the new search direction to arrive at a new step size, and using the new step size and the new search direction to generate an updated model for a current iteration of the iterative visco-acoustic full wavefield inversion process.
摘要翻译：一种用于迭代地反演地震数据以共同推导用于至少P波速度和地下的衰减参数的模型的方法，所述方法包括：将P波速度和衰减参数与其中所述迭代粘声全波场反演过程包括：计算目标函数的梯度，所述目标函数测量全部或部分地震数据与对应的模型模拟地震数据之间的失配; 对于每个P波速度和衰减参数，从梯度计算模型空间中的搜索方向; 分别针对P波速度和衰减参数的搜索方向确定线搜索步长α和β，其中步长大小的比率是纵波速度参数; 并使用步长α和β以及每个P波速度和衰减参数的搜索方向，计算模型空间中的新搜索方向，然后执行沿着新的搜索方向进行线搜索以获得新的步长，并且使用新的步长和新的搜索方向来生成迭代粘声全波场反演过程的当前迭代的更新模型。

5. 发明申请

WO2017189180A1 FWI WITH AREAL AND POINT SOURCES 审中-公开
标题翻译： FWI与面积和点源
公开(公告)号：WO2017189180A1
公开(公告)日：2017-11-02
申请号：PCT/US2017/025706
申请日：2017-04-03
申请人： EXXONMOBIL UPSTREAM RESEARCH COMPANY , BAUMSTEIN, Anatoly, I. , YANG, Di , VDOVINA, Tetyana , TANG, Yaxun
发明人： BAUMSTEIN, Anatoly, I. , YANG, Di , VDOVINA, Tetyana , TANG, Yaxun
IPC分类号： G01V1/30
摘要： A method, including performing, with a computer, up/down separation of geophysical data, which produces an approximate up-going wavefield and an approximate down-going wavefield; creating an areal source based at least in part on the down-going wavefield; and performing, with a computer, a full wavefield inversion process with the areal source, and an objective function measuring a misfit between modeled up-going wavefields and recorded up- going wavefields, wherein the full wavefield inversion process generates a final subsurface physical property model.
摘要翻译：一种方法，包括利用计算机执行地球物理数据的向上/向下分离，其产生近似上行波场和近似下行波场; 创造至少部分基于下行波场的面源; 以及利用计算机利用面源执行全波场反演过程以及测量模型化的上行波场与记录的上行波场之间的失配的目标函数，其中全波场反演过程生成最终地下物理性质模型

6. 发明申请

WO2017065889A1 FWI MODEL DOMAIN ANGLE STACKS WITH AMPLITUDE PRESERVATION 审中-公开
标题翻译：具有幅度保持的FWI模型域角度叠加
公开(公告)号：WO2017065889A1
公开(公告)日：2017-04-20
申请号：PCT/US2016/049390
申请日：2016-08-30
申请人： EXXONMOBIL UPSTREAM RESEARCH COMPANY , YANG, Di , BANSAL, Reeshidev , LAZARATOS, Spyridon, K. , YAN, Jia , BAUMSTEIN, Anatoly, I.
发明人： YANG, Di , BANSAL, Reeshidev , LAZARATOS, Spyridon, K. , YAN, Jia , BAUMSTEIN, Anatoly, I.
IPC分类号： G01V1/28
CPC分类号： G01V1/282 , E21B41/0092 , G01V1/325 , G01V1/362 , G01V2210/57 , G01V2210/632
摘要： A method, including: obtaining a seismic dataset that is separated into subsets according to predetermined subsurface reflection angle ranges; performing, with a computer, an acoustic full wavefield inversion process on each of the subsets, respectively, to invert for density and generate respective density models; generating acoustic impedances for each of the subsets, as a function of reflection angle, using the respective density models; and transforming, using a computer, the acoustic impedances for each of the subsets into reflectivity sections, wherein the transforming includes normalizing the reflectivity sections by their respective bandwidth.
摘要翻译：一种方法，包括：获得根据预定的地下反射角度范围分成子集的地震数据集; 用计算机分别对每个子集进行声波全波场反演过程以对密度进行反演并生成相应的密度模型; 使用各自的密度模型作为反射角的函数为每个子集产生声阻抗; 以及使用计算机将每个子集的声阻抗变换成反射率部分，其中所述变换包括通过它们各自的带宽对反射率部分进行归一化。

7. 发明申请

WO2009051899A1 METHOD TO ADAPT A TEMPLATE DATASET TO A TARGET DATASET BY USING CURVELET REPRESENTATIONS 审中-公开
标题翻译：使用CURVELET表示将模板数据适应目标数据的方法
公开(公告)号：WO2009051899A1
公开(公告)日：2009-04-23
申请号：PCT/US2008/074564
申请日：2008-08-28
申请人： EXXONMOBIL UPSTREAM RESEARCH COMPANY , NEELAMANI, Ramesh , BAUMSTEIN, Anatoly, I. , ROSS, Warren, S.
发明人： NEELAMANI, Ramesh , BAUMSTEIN, Anatoly, I. , ROSS, Warren, S.
IPC分类号： G01V1/00
CPC分类号： G01V1/36 , G01V2210/32 , G01V2210/56
摘要： Method for adapting a template to a target data set. The template may be used to remove noise from, or interpret noise in, the target data set. The target data set is transformed (550) using a selected complex-valued, directional, multi-resolution transform ("CDMT") satisfying the Hubert transform property at least approximately. An initial template is selected, and it is transformed (551) using the same CDMT. Then the transformed template is adapted (560) to the transformed target data by adjusting the template's expansion coefficients within allowed ranges of adjustment so as to better match the expansion coefficients of the target data set. Multiple templates may be simultaneously adapted to better fit the noise or other component of the data that it may be desired to represent by template.
摘要翻译：将模板适配到目标数据集的方法。该模板可用于从目标数据集中去除噪声或解释噪声。目标数据集使用至少近似满足休伯特变换属性的所选复值定向多分辨率变换（“CDMT”）进行变换（550）。选择初始模板，并使用相同的CDMT对其进行转换（551）。然后，通过在允许的调整范围内调整模板的扩展系数，将变换的模板适配（560）到变换的目标数据，以便更好地匹配目标数据集的扩展系数。多个模板可以同时适合于更好地拟合可能希望由模板表示的数据的噪声或其他组件。

8. 发明公开

EP3362823A1 FWI MODEL DOMAIN ANGLE STACKS WITH AMPLITUDE PRESERVATION 有权
公开(公告)号：EP3362823A1
公开(公告)日：2018-08-22
申请号：EP16763157.1
申请日：2016-08-30
申请人： ExxonMobil Upstream Research Company
发明人： YANG, Di , BANSAL, Reeshidev , LAZARATOS, Spyridon, K. , YAN, Jia , BAUMSTEIN, Anatoly, I.
IPC分类号： G01V1/28
CPC分类号： G01V1/282 , E21B41/0092 , G01V1/325 , G01V1/362 , G01V2210/57 , G01V2210/632
摘要： A method, including: obtaining a seismic dataset that is separated into subsets according to predetermined subsurface reflection angle ranges; performing, with a computer, an acoustic full wavefield inversion process on each of the subsets, respectively, to invert for density and generate respective density models; generating acoustic impedances for each of the subsets, as a function of reflection angle, using the respective density models; and transforming, using a computer, the acoustic impedances for each of the subsets into reflectivity sections, wherein the transforming includes normalizing the reflectivity sections by their respective bandwidth.

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