公开(公告)号：US06594584B1

公开(公告)日：2003-07-15

申请号：US09616783

申请日：2000-07-14

申请人： Dzevat Omeragic ,  Tarek M. Habashy ,  Cengiz Esmersoy

发明人： Dzevat Omeragic ,  Tarek M. Habashy ,  Cengiz Esmersoy

IPC分类号： G01N318

CPC分类号： G01V3/28

摘要： A method is disclosed for determining a position of a wellbore with respect to layer boundaries in earth formations. The method includes projecting a trajectory of the wellbore onto an initial model of the earth formations, selecting a segment of the trajectory and calculating along the segment expected responses of a well logging instrument. Differences between the expected responses and responses measured by the instrument along the segment are determined. The model is adjusted, the expected responses are recalculated and the differences are again determined. These are repeated until the differences fall below a selected threshold. In one embodiment, the trajectory of the wellbore can be adjusted to remain within a selected distance of a selected one of the layer boundaries.

摘要翻译： 公开了一种用于确定井眼相对于地层中的层边界的位置的方法。 该方法包括将井筒的轨迹投影到地层的初始模型上，选择轨迹的一部分并沿着测井仪器的段预期响应计算。 确定仪器沿段测量的预期响应和响应之间的差异。 调整模型，重新计算预期响应，并再次确定差异。 重复这些，直到差异低于选定的阈值。 在一个实施例中，可以调整井眼的轨迹以保持在选定的层边界之一的选定距离内。

公开(公告)号：US10450860B2

公开(公告)日：2019-10-22

申请号：US13666815

申请日：2012-11-01

申请人： Valery Polyakov ,  Dzevat Omeragic ,  Torbjørn Vik ,  Tarek M. Habashy

发明人： Valery Polyakov ,  Dzevat Omeragic ,  Torbjørn Vik ,  Tarek M. Habashy

IPC分类号： E21B49/00

摘要： A method for characterizing a subterranean formation traversed by a wellbore includes generating a reservoir model using data collected from the formation, generating a perturbation object comprising a perturbation of the wellbore, integrating the perturbation object with the reservoir model, and forming a geological model wherein the perturbation object is integrated in the reservoir model.

公开(公告)号：US20110106514A1

公开(公告)日：2011-05-05

申请号：US12738225

申请日：2008-09-08

申请人： Dzevat Omeragic ,  Tarek M. Habashy ,  Valery Polyakov ,  Raymond Kocian ,  Yong-Hua Chen ,  Sofia Davydycheva ,  Raphael Altman ,  Carlos Maeso ,  Douglas Hupp

发明人： Dzevat Omeragic ,  Tarek M. Habashy ,  Valery Polyakov ,  Raymond Kocian ,  Yong-Hua Chen ,  Sofia Davydycheva ,  Raphael Altman ,  Carlos Maeso ,  Douglas Hupp

IPC分类号： G06G7/48

CPC分类号： G01V11/00

摘要： Methods for three-dimensionally characterizing a reservoir while drilling a high angle or horizontal wellbore through the reservoir are disclosed. An initial reservoir model for the reservoir is selected and a section is extracted for a planned trajectory of the wellbore. A secondary model is generated by performing secondary modeling for at least part of the planned trajectory. An area of interest is identified within the secondary model where statistical uncertainty is high. Possible causes of the statistical uncertainty are identified for the area of interest within the secondary model that are not present or accounted for in the initial reservoir model. A set of parameters for the area of interest are defined at that are based on the possible causes of statistical uncertainty. The area of interest is logged with at least one logging while drilling LWD tool. Sensitivities of the LWD tool response to the subset of parameters are evaluated by performing at least one tertiary model for a range of the subset of parameters. The most sensitive parameters from the subset of parameters and corresponding measurements are identified. One or more real-time LWD measurements to be used for proactive well placement along the planned trajectory are identified and are based on the most sensitive parameters. The initial reservoir model is updated while drilling with information from the tertiary model. The model update is based on physics-based modeling or on inversion and on running multiple models and selection of a best candidate model based on correlations between the tool measurements and modeled results for each geologic model.

摘要翻译： 公开了在通过储存器钻高角度或水平井眼时三维地表征储层的方法。 选择储层的初始储层模型，并为井眼的计划轨迹提取截面。 通过对至少部分计划轨迹执行二次建模来生成辅助模型。 在统计不确定度高的次级模式中确定感兴趣的领域。 在二次模型中，在初始储层模型中不存在或考虑到的关注区域，确定了统计不确定性的可能原因。 定义感兴趣区域的一组参数是基于统计不确定性的可能原因。 在钻探LWD工具时，至少记录一次记录区域。 通过对参数子集的范围执行至少一个第三模型来评估对参数子集的LWD工具响应的灵敏度。 确定参数子集和相应测量中最敏感的参数。 用于沿着计划轨迹进行主动井放置的一个或多个实时LWD测量被识别并且基于最敏感的参数。 最初的油藏模型在使用三级模型的信息进行钻井时更新。 模型更新基于基于物理的建模或反演，并运行多个模型，并根据工具测量与每个地质模型的建模结果之间的相关性选择最佳候选模型。

公开(公告)号：US08489375B2

公开(公告)日：2013-07-16

申请号：US12738225

申请日：2008-09-08

申请人： Dzevat Omeragic ,  Tarek M. Habashy ,  Valery Polyakov ,  Raymond Kocian ,  Yong-Hua Chen ,  Sofia Davydycheva ,  Raphael Altman ,  Carlos Maeso ,  Douglas Hupp

发明人： Dzevat Omeragic ,  Tarek M. Habashy ,  Valery Polyakov ,  Raymond Kocian ,  Yong-Hua Chen ,  Sofia Davydycheva ,  Raphael Altman ,  Carlos Maeso ,  Douglas Hupp

IPC分类号： G06G7/48

CPC分类号： G01V11/00

摘要： LWD measurements to be used for proactive well placement while drilling a high angle or horizontal wellbore in a reservoir are defined. An initial reservoir model is provided and a section is extracted for a planned wellbore trajectory. A secondary model is generated for the planned trajectory. An area of interest is identified where statistical uncertainty is high. Possible causes of the statistical uncertainty are identified that are not present in the initial reservoir model. A set of parameters are defined based on the possible causes of statistical uncertainty. The area of interest is logged with LWD tool. Sensitivities of the LWD tool response to a subset of parameters are evaluated by performing tertiary model for a range of the subset of parameters. The most sensitive parameters from the subset of parameters and corresponding measurements are identified. LWD measurements are defined based on the most sensitive parameters.

摘要翻译： 定义用于在储存器中钻高角度或水平井眼时用于主动井位置的LWD测量。 提供初始储层模型，并为计划的井眼轨迹提取截面。 为计划轨迹生成二次模型。 确定感兴趣的领域，统计不确定度高。 确定在初始储层模型中不存在的统计不确定性的可能原因。 基于统计不确定性的可能原因定义了一组参数。 利用LWD工具记录感兴趣的区域。 通过对参数子集的范围执行第三模型来评估LWD工具对参数子集的响应的敏感度。 确定参数子集和相应测量中最敏感的参数。 LWD测量根据最敏感的参数进行定义。

公开(公告)号：US06819110B2

公开(公告)日：2004-11-16

申请号：US10108056

申请日：2002-03-26

申请人： Dzevat Omeragic ,  Cengiz Esmersoy

发明人： Dzevat Omeragic ,  Cengiz Esmersoy

IPC分类号： G01V308

CPC分类号： G01V3/28

摘要： An electromagnetic well logging instrument is disclosed which includes at least one transmitter antenna oriented to have at least some magnetic dipole moment component transverse to an axis of the instrument. The instrument includes at least two receiver antennas oriented to have at least some magnetic dipole moment component transverse to the axis and parallel to the magnetic dipole moment component of the at least one transmitter antenna. The at least two receiver antennas are axially spaced apart from the transmitter antenna so that a response of the instrument to the transverse magnetic dipole moment component is axially substantially on one side of a more distant spaced one of the at least two receiver antennas.

摘要翻译： 公开了一种电磁测井仪器，其包括至少一个定向成具有横向于仪器的轴线的磁偶极矩分量的发射器天线。 所述仪器包括至少两个接收器天线，所述至少两个接收器天线定向成具有横向于所述轴线并且平行于所述至少一个发射器天线的磁偶极矩分量的至少一些磁偶极矩分量。 所述至少两个接收器天线与所述发射器天线轴向间隔开，使得所述仪器对所述横向磁偶极矩分量的响应轴向地基本上位于所述至少两个接收器天线之间更远距离的一个的一侧上。

公开(公告)号：US09134449B2

公开(公告)日：2015-09-15

申请号：US13030780

申请日：2011-02-18

申请人： Jean Seydoux ,  Dzevat Omeragic ,  Dean M. Homan

发明人： Jean Seydoux ,  Dzevat Omeragic ,  Dean M. Homan

IPC分类号： G01V3/00 ,  G01V3/22 ,  G01V3/30 ,  G01V1/52

CPC分类号： G01V3/22 ,  G01V1/52 ,  G01V3/30

摘要： The present disclosure relates to a method to determine a formation property of a subsurface formation. A downhole logging tool having two or more antennas, at least two of the antennas having a transversely-sensitive element and an axially-sensitive element is provided. Azimuthally-sensitive measurements are obtained using the antennas of the downhole logging tool. The measurements are fitted to a Fourier series having Fourier coefficients that include channel gains, if any. A DC component, a first harmonic component, and a second harmonic component are determined from the Fourier series, a measurement type is determined using the DC component, the first harmonic component, and/or the second harmonic component, and the formation property of the subsurface formation is determined using the determined measurement type.

摘要翻译： 本公开涉及确定地下地层的地层特性的方法。 一种具有两个或多个天线的井下测井工具，其中至少两个天线具有横向敏感元件和轴向敏感元件。 使用井下测井工具的天线获得方位角敏感测量。 这些测量值适用于傅立叶级数，其傅立叶系数包括通道增益（如果有的话）。 从傅里叶级数确定DC分量，一次谐波分量和二次谐波分量，使用DC分量，一次谐波分量和/或二次谐波分量来确定测量类型，并且确定 使用确定的测量类型确定地下地层。

公开(公告)号：US20130160998A1

公开(公告)日：2013-06-27

申请号：US13335983

申请日：2011-12-23

申请人： Francois M. Auzerais ,  Dzevat Omeragic ,  Slaheddine Kefi ,  Dean M. Homan ,  John P. Horkowitz ,  Benoit Vidick ,  Dominique Malard ,  Robert Utter ,  Andrew Hawthorn

发明人： Francois M. Auzerais ,  Dzevat Omeragic ,  Slaheddine Kefi ,  Dean M. Homan ,  John P. Horkowitz ,  Benoit Vidick ,  Dominique Malard ,  Robert Utter ,  Andrew Hawthorn

IPC分类号： E21B47/10 ,  G06F19/00 ,  G01V3/30 ,  C09K8/03 ,  E21B43/00

CPC分类号： C09K8/03 ,  E21B21/003 ,  E21B47/04 ,  G01V3/30

摘要： Compositions of lost circulation materials are provided that are useful for identifying the location of fluid loss in a wellbore. The compositions include additives which enhance a property of the composition such that they can be detected by an LWD or MWD tool capable of measuring the property when the composition is deployed in a region of loss, and can be distinguished by the LWD or MWD tool from the formation and mud fluid. Methods are also provided for using the composition to detect the location of fluid loss and for controlling the loss of fluid from the wellbore. The methods involve deploying the compositions in loss regions by adding the compositions to drilling mud, and measuring a property of the compositions using an LWD or MWD tool.

摘要翻译： 提供了用于识别井眼中的流体损失位置的缺失循环材料的组合物。 组合物包括增强组合物性质的添加剂，使得它们可以通过LWD或MWD工具来检测，该组合物能够在组合物部署在损失区域时测定其性能，并且可以通过LWD或MWD工具来区分 形成泥浆流体。 还提供了使用组合物来检测流体损失的位置并控制来自井眼的流体损失的方法。 所述方法涉及通过将组合物添加到钻井泥浆中来将组合物部署在损失区域中，并且使用LWD或MWD工具测量组合物的性质。

公开(公告)号：US07759943B2

公开(公告)日：2010-07-20

申请号：US11752112

申请日：2007-05-22

申请人： Dean M. Homan ,  Dzevat Omeragic ,  Tianhua Zhang ,  Nicolas Sebline

发明人： Dean M. Homan ,  Dzevat Omeragic ,  Tianhua Zhang ,  Nicolas Sebline

IPC分类号： G01V3/30 ,  G01V3/18

CPC分类号： G01V3/30

摘要： Sensor assemblies including transmitter and receiver antennas to respectively transmit or receive electromagnetic energy. The sensor assemblies are disposed in downhole tools adapted for subsurface disposal. The receiver is disposed at a distance less than six inches (15 cm) from the transmitter on the sensor body. The sensor transmitter or receiver includes an antenna with its axis tilted with respect to the axis of the downhole tool. A sensor includes a tri-axial system of antennas. Another sensor includes a cross-dipole antenna system.

摘要翻译： 传感器组件包括用于分别发送或接收电磁能的发射机和接收机天线。 传感器组件设置在适于地下处置的井下工具中。 接收器设置在距离传感器主体上的发射器小于6英寸（15厘米）的距离处。 传感器发射器或接收器包括其轴线相对于井下工具的轴线倾斜的天线。 传感器包括三轴天线系统。 另一传感器包括一个交叉偶极天线系统。

公开(公告)号：US07536261B2

公开(公告)日：2009-05-19

申请号：US11279739

申请日：2006-04-13

申请人： Dzevat Omeragic ,  Gerald N. Minerbo ,  Richard A. Rosthal

发明人： Dzevat Omeragic ,  Gerald N. Minerbo ,  Richard A. Rosthal

IPC分类号： G01V3/10

CPC分类号： E21B47/026 ,  G01V3/28

摘要： A method to determine a parameter of a subsurface formation such as anisotropy and dip comprises making at least two cross dipole measurements and forming an anti-symmetrized combination from the at least two cross dipole measurements.

摘要翻译： 确定地下地层诸如各向异性和浸渍的参数的方法包括进行至少两个交叉偶极子测量并从所述至少两个交叉偶极子测量形成抗对称结合。

公开(公告)号：US06998844B2

公开(公告)日：2006-02-14

申请号：US10249030

申请日：2003-03-11

申请人： Dzevat Omeragic ,  Jacques R. Tabanou ,  Alain Dumont

发明人： Dzevat Omeragic ,  Jacques R. Tabanou ,  Alain Dumont

IPC分类号： G01V3/10

CPC分类号： G01V3/30

摘要： Transverse or tilted magnetic dipole antenna systems are used for electromagnetic logging measurements to determine the anisotropic resistivity of subsurface formations. Combined measurements between transverse or tilted antennas, as well as axial antennas, are used to compensate for receiver antenna mismatch in the system. Some embodiments use model-based parametric inversion to estimate the anisotropic resistivity in the presence of invasion and shoulder-bed effects.

摘要翻译： 横向或倾斜的磁偶极天线系统用于电磁测井测量，以确定地下地层的各向异性电阻率。 使用横向或倾斜天线以及轴向天线之间的组合测量来补偿系统中的接收机天线不匹配。 一些实施例使用基于模型的参数反演来估计在存在入侵和肩膀效应的情况下的各向异性电阻率。