公开(公告)号：US10705246B2

公开(公告)日：2020-07-07

申请号：US15725341

申请日：2017-10-05

申请人： Pingjun Guo ,  Mathilde M. Luycx

发明人： Pingjun Guo ,  Mathilde M. Luycx

IPC分类号： G01V5/04 ,  G01N33/24 ,  G01V5/10

摘要： A method to interpret and quantify mineral compositions and concentrations, the method including: determining, with a computer, mineral composition models from a non-linear inversion of core or log elemental and mineral concentration data; and determining, with a computer, mineral concentrations for subsurface region from a linear inversion of core or geochemical log data from the subsurface region or analogous region and the mineral composition models.

公开(公告)号：US20180149768A1

公开(公告)日：2018-05-31

申请号：US15725341

申请日：2017-10-05

申请人： Pingjun Guo ,  Mathilde M. Luycx

发明人： Pingjun Guo ,  Mathilde M. Luycx

IPC分类号： G01V5/04 ,  G01N33/24

摘要： A method to interpret and quantify mineral compositions and concentrations, the method including: determining, with a computer, mineral composition models from a non-linear inversion of core or log elemental and mineral concentration data; and determining, with a computer, mineral concentrations for subsurface region from a linear inversion of core or geochemical log data from the subsurface region or analogous region and the mineral composition models.

公开(公告)号：US20070241275A1

公开(公告)日：2007-10-18

申请号：US11247684

申请日：2005-10-11

申请人： Pingjun Guo ,  Detlef Hahn

发明人： Pingjun Guo ,  Detlef Hahn

IPC分类号： G01V5/08

CPC分类号： G01V5/101 ,  G01V5/104 ,  G01V5/125 ,  G01V5/145

摘要： A neutron source for a downhole logging tool includes 241Am and 9Be. Stainless steel shielding is used to control the generation of neutrons by the source. The device may be used for both continuous as well as pulsed neutron logging and may also be used for gamma ray logging.

摘要翻译： 用于井下测井工具的中子源包括“中”和“”“”“”。 不锈钢屏蔽用于控制源头产生的中子。 该装置可以用于连续的以及脉冲中子测井，也可用于伽马射线测井。

公开(公告)号：US20060208184A1

公开(公告)日：2006-09-21

申请号：US11085902

申请日：2005-03-21

申请人： Pingjun Guo

发明人： Pingjun Guo

IPC分类号： G01V5/00

CPC分类号： G01V5/06

摘要： Resolution of thin beds made by a natural gamma ray logging tool is improved using a relation between the width of the response and the bed thickness. The peak gamma ray of the bed is determined using another relation between the measured gamma ray response and the bed thickness.

摘要翻译： 使用自然伽马射线测井工具制成的薄床的分辨率通过响应宽度和床层厚度之间的关系得到改善。 使用测量的伽马射线响应和床层厚度之间的另一关系确定床的峰值伽马射线。

公开(公告)号：US09057795B2

公开(公告)日：2015-06-16

申请号：US14278143

申请日：2014-05-15

申请人： Pingjun Guo ,  Richard J. Smith ,  Thomas J. Boone

发明人： Pingjun Guo ,  Richard J. Smith ,  Thomas J. Boone

IPC分类号： G01V5/12 ,  E21B47/00

CPC分类号： G01V5/125 ,  E21B47/0005

摘要： Well logging method and logging tool for measuring cement density and thickness at different azimuth angles for a cemented, cased well. The method uses a gamma source, a short-spaced detector, a long-spaced detector, and preferably a backscatter detector, where the detector-to-source spacings are designed for calculating (93) thickness and density of the cement annulus (94) from the detector count rates (91).

摘要翻译： 测井方法和测井工具，用于测量水泥井套管不同方位角处的水泥密度和厚度。 该方法使用伽马源，短距离检测器，长距离检测器，并且优选地反向散射检测器，其中检测器到源间隔被设计用于计算水泥环（94）的厚度和密度（93） 从检测器计数率（91）。

公开(公告)号：US20130345983A1

公开(公告)日：2013-12-26

申请号：US13864918

申请日：2013-04-17

申请人： Pingjun Guo

发明人： Pingjun Guo

IPC分类号： G01V5/10

CPC分类号： G01V5/104 ,  E21B47/0005

摘要： Method for evaluating cement integrity in a cased well environment using a logging tool that has a neutron source and one or more neutron or gamma ray detectors. Neutron porosity logs are obtained from the well before (42) and after (41) casing. This log data along with well dimensions and material composition parameters are the input quantities to a multi-parameter database (43) that is constructed by computer modeling or laboratory experiments to relate volume fraction for fluid filled channels in the cement sheath to the input quantities. The channel volume fraction (45) corresponding to the input quantities is identified or interpolated (44) from the multi-parameter database.

摘要翻译： 使用具有中子源和一个或多个中子或伽马射线探测器的测井工具评估套管井环境中的水泥完整性的方法。 中空孔隙度测井是从（42）和（41）套管之后的井获得的。 该日志数据以及井尺寸和材料组成参数是通过计算机建模或实验室实验构建的多参数数据库（43）的输入量，以将水泥套管中流体填充通道的体积分数与输入量相关联。 对应于输入量的通道体积分数（45）从多参数数据库中被识别或内插（44）。

公开(公告)号：US20100228484A1

公开(公告)日：2010-09-09

申请号：US12678040

申请日：2008-10-10

申请人： Hezhu Yin ,  Pingjun Guo ,  Alberto X. Mendoza

发明人： Hezhu Yin ,  Pingjun Guo ,  Alberto X. Mendoza

IPC分类号： G01V9/00 ,  G06F19/00

CPC分类号： G01V5/125

摘要： Systems and methods which provide accurate formation information regardless of formation and borehole geometry, including those associated with high angle and horizontal wells, are shown. In providing processing of logging or image data, such as may be provided by a density tool or other tool, according to embodiments, formation attributes or features (e.g., density and dip angle) are estimated using raw data provided by a the tool. The foregoing estimations may thereafter be iteratively refined using effective volume of interest (EVOI) information. According to embodiments, depth boundaries of formation information provided by the tool are shifted as a function of azimuth for correct spatial positioning of formation features using EVOI information. Processing of formation attribute or feature data provided by embodiments may be used with respect to various tool configurations, including configurations with and without borehole standoff.

摘要翻译： 示出了提供精确的地层信息的系统和方法，而不管地层和钻孔几何形状，包括与高角度和水平井相关的几何形状。 在提供记录或图像数据的处理（例如可以由密度工具或其他工具提供）时，根据实施例，使用由工具提供的原始数据来估计形成属性或特征（例如，密度和倾角）。 之后可以使用有效感兴趣量（EVOI）信息迭代地改进上述估计。 根据实施例，由工具提供的地层信息的深度边界作为方位角的函数被移动，以使用EVOI信息对地层特征进行正确的空间定位。 实施例提供的地层属性或特征数据的处理可以用于各种工具配置，包括具有和不具有井眼间隙的构造。

公开(公告)号：US07548817B2

公开(公告)日：2009-06-16

申请号：US11863052

申请日：2007-09-27

申请人： Gamal A. Hassan ,  Philip L. Kurkoski ,  Pingjun Guo

发明人： Gamal A. Hassan ,  Philip L. Kurkoski ,  Pingjun Guo

IPC分类号： G01V1/40

CPC分类号： E21B47/08 ,  G01V11/002

摘要： Caliper measurements made during rotation of a bottomhole assembly are processed to estimate the location of the BHA, and size and shape of the borehole. A piecewise elliptical fitting procedure may be used. These estimates may be used to correct measurements made by a standoff-sensitive formation evaluation sensor such as a neutron porosity tool.

摘要翻译： 处理钻孔组件旋转期间进行的卡尺测量被处理以估计BHA的位置，以及钻孔的尺寸和形状。 可以使用分段椭圆拟合程序。 这些估计可以用于校正由诸如中子孔隙度工具的对立敏感地层评估传感器所做的测量。

公开(公告)号：US20060033022A1

公开(公告)日：2006-02-16

申请号：US10916921

申请日：2004-08-12

申请人： William Madigan ,  Richard Pemper ,  Pingjun Guo

发明人： William Madigan ,  Richard Pemper ,  Pingjun Guo

IPC分类号： G01V5/10

CPC分类号： G01V5/101 ,  G01N33/24

摘要： Elemental analysis of an earth formation is obtained using measurements from a gamma ray logging tool. From the elemental analysis, an estimate of the mineralogy of the formation is made treating the problem as one of Linear Programming (maximizing an objective function subject to equality and/or inequality constraints).

摘要翻译： 使用伽马射线测井工具的测量可以获得地层的元素分析。 从元素分析来看，对地层矿物学的估计是将问题作为线性规划（Linear Programming，最大化目标函数，受到平等和/或不等式约束）的影响。

公开(公告)号：US20140052376A1

公开(公告)日：2014-02-20

申请号：US13945441

申请日：2013-07-18

申请人： Pingjun Guo ,  Richard J. Smith

发明人： Pingjun Guo ,  Richard J. Smith

IPC分类号： E21B47/00

CPC分类号： E21B47/00 ,  E21B47/0005

摘要： Method for evaluating cement quality in a cased well. A density log of the well is obtained using, for example, a GammaRay sources and detectors (51). The detector count rates are inverted to provide initial estimates of cement density and thickness (53). Acoustic waveform data are obtained from the well using an acoustic logging tool (52). The acoustic data are inverted (54-56), using the initial estimates of cement density and thickness obtained from the density logs, and an updated density log is inferred. Cement images are obtained from the updated density log, and cement bond quality can be estimated (57).

摘要翻译： 水泥井水泥质量评估方法。 使用例如GammaRay源和检测器（51）获得阱的密度对数。 检测器计数率被反转以提供水泥密度和厚度的初步估计（53）。 使用声学测井工具（52）从井获得声波形数据。 使用从密度日志获得的水泥密度和厚度的初始估计，声学数据被倒置（54-56），并且推断更新的密度日志。 水泥图像可以从更新的密度记录中获得，并且可以估计水泥粘合质量（57）。