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    Identification of casing collars while drilling and post drilling using LWD and wireline measurements
    1.
    发明授权
    Identification of casing collars while drilling and post drilling using LWD and wireline measurements 有权
    使用LWD和有线测量在钻井和后钻时识别套管

    公开(公告)号：US09175559B2

    公开(公告)日：2015-11-03

    申请号：US13122127

    申请日：2009-10-02

    申请人： Najmud Dowla ,  John C. Rasmus ,  Abhijeet Nayan ,  Taesoo Kim ,  Richard J. Radtke ,  Michael Evans

    发明人： Najmud Dowla ,  John C. Rasmus ,  Abhijeet Nayan ,  Taesoo Kim ,  Richard J. Radtke ,  Michael Evans

    IPC分类号： E21B47/09 ,  E21B17/08

    CPC分类号： E21B47/09 ,  E21B17/08 ,  E21B47/12

    摘要： Systems and methods identify and/or detect one or more features of a well casing by utilizing one or more downhole measurements obtainable by a downhole component. The one or more features of the well casing are identifiable and/or detectable from the one or more measurements associated with one or more properties of the one or more features of the well casing. The one or more measurements for indentifying and/or detecting a presence and/or a location of the one or more features of the well casing include sonic measurements, nuclear measurements, gamma ray measurements, photoelectric measurements, resistivity measurements and/or combinations thereof.

    摘要翻译： 系统和方法通过利用由井下部件可获得的一个或多个井下测量来识别和/或检测井套管的一个或多个特征。 井套管的一个或多个特征可以从与井套管的一个或多个特征的一个或多个特性相关联的一个或多个测量值中被识别和/或检测。 用于识别和/或检测井壳的一个或多个特征的存在和/或位置的一个或多个测量包括声波测量，核测量，伽马射线测量，光电测量，电阻率测量和/或其组合。

    IDENTIFICATION OF CASING COLLARS WHILE DRILLING AND POST DRILLING USING LWD AND WIRELINE MEASUREMENTS
    2.
    发明申请
    IDENTIFICATION OF CASING COLLARS WHILE DRILLING AND POST DRILLING USING LWD AND WIRELINE MEASUREMENTS 有权
    使用LWD和WIRELINE测量来识别钻孔和钻孔后的套管

    公开(公告)号：US20110290011A1

    公开(公告)日：2011-12-01

    申请号：US13122127

    申请日：2009-10-02

    申请人： Najmud Dowla ,  John C. Rasmus ,  Abhijeet Nayan ,  Taesoo Kim ,  Richard J. Radtke ,  Michael Evans

    发明人： Najmud Dowla ,  John C. Rasmus ,  Abhijeet Nayan ,  Taesoo Kim ,  Richard J. Radtke ,  Michael Evans

    IPC分类号： E21B49/00

    CPC分类号： E21B47/09 ,  E21B17/08 ,  E21B47/12

    摘要： Systems and methods identify and/or detect one or more features of a well casing by utilizing one or more downhole measurements obtainable by a downhole component. The one or more features of the well casing are identifiable and/or detectable from the one or more measurements associated with one or more properties of the one or more features of the well casing. The one or more measurements for indentifying and/or detecting a presence and/or a location of the one or more features of the well casing include sonic measurements, nuclear measurements, gamma ray measurements, photoelectric measurements, resistivity measurements and/or combinations thereof.

    摘要翻译： 系统和方法通过利用由井下部件可获得的一个或多个井下测量来识别和/或检测井套管的一个或多个特征。 井套管的一个或多个特征可以从与井套管的一个或多个特征的一个或多个特性相关联的一个或多个测量值中被识别和/或检测。 用于识别和/或检测井壳的一个或多个特征的存在和/或位置的一个或多个测量包括声波测量，核测量，伽马射线测量，光电测量，电阻率测量和/或其组合。

    Applications based on fluid properties measured downhole
    3.
    发明授权
    Applications based on fluid properties measured downhole 有权
    基于井下测量的流体性质的应用

    公开(公告)号：US08965703B2

    公开(公告)日：2015-02-24

    申请号：US13251769

    申请日：2011-10-03

    申请人： Ankur Prakash ,  John C. Rasmus ,  Richard J. Radtke ,  Michael Evans ,  Lee Dolman

    发明人： Ankur Prakash ,  John C. Rasmus ,  Richard J. Radtke ,  Michael Evans ,  Lee Dolman

    IPC分类号： G01V1/48 ,  G01V1/50 ,  G01N15/10 ,  E21B47/12 ,  E21B49/00

    CPC分类号： E21B49/003 ,  E21B49/005 ,  E21B49/087 ,  E21B2049/085

    摘要： Downhole drilling fluid measurements are made as a function of time or as a function of depth. A change in the downhole drilling fluid measurements is correlated to a feature of a formation penetrated by a drill bit or to a feature of fluids in the formation. The downhole drilling fluid measurements may include density, photoelectric factor, hydrogen index, salinity, thermal neutron capture cross section (Sigma), resistivity, slowness, slowing down time, sound velocity, and elemental composition. The feature may include fluid balance, hole-cleaning, a kick, a shallow water flow, a formation fluid property, formation fluid typing, geosteering, geostopping, or an environmental correction. A downhole system has a measurement-while-drilling tool or a logging-while-drilling tool and a processor capable of obtaining the downhole drilling fluid measurements and correlating the change in the downhole drilling fluid measurements.

    摘要翻译： 井下钻井液测量作为时间的函数或作为深度的函数。 井下钻井液测量的变化与由钻头渗透的地层特征或地层中流体特征相关。 井下钻井液测量可以包括密度，光电因子，氢指数，盐度，热中子俘获截面（Sigma），电阻率，缓慢，减速时间，声速和元素组成。 该特征可以包括流体平衡，孔清洁，踢脚，浅水流，地层流体性质，地层流体分类，地质导向，地质倾斜或环境校正。 井下系统具有钻孔测量工具或钻井测井工具和能够获得井下钻井液测量值并与井下钻井液测量值的变化相关联的处理器。

    Applications Based On Fluid Properties Measured Downhole
    4.
    发明申请
    Applications Based On Fluid Properties Measured Downhole 有权

    公开(公告)号：US20130085675A1

    公开(公告)日：2013-04-04

    申请号：US13251769

    申请日：2011-10-03

    申请人： Ankur Prakash ,  John C. Rasmus ,  Richard J. Radtke ,  Michael Evans ,  Lee Dolman

    发明人： Ankur Prakash ,  John C. Rasmus ,  Richard J. Radtke ,  Michael Evans ,  Lee Dolman

    IPC分类号： G06F19/00 ,  E21B49/00

    CPC分类号： E21B49/003 ,  E21B49/005 ,  E21B49/087 ,  E21B2049/085

    摘要： Downhole drilling fluid measurements are made as a function of time or as a function of depth. A change in the downhole drilling fluid measurements is correlated to a feature of a formation penetrated by a drill bit or to a feature of fluids in the formation. The downhole drilling fluid measurements may include density, photoelectric factor, hydrogen index, salinity, thermal neutron capture cross section (Sigma), resistivity, slowness, slowing down time, sound velocity, and elemental composition. The feature may include fluid balance, hole-cleaning, a kick, a shallow water flow, a formation fluid property, formation fluid typing, geosteering, geostopping, or an environmental correction. A downhole system has a measurement-while-drilling tool or a logging-while-drilling tool and a processor capable of obtaining the downhole drilling fluid measurements and correlating the change in the downhole drilling fluid measurements.

    Method and apparatus for measuring mud and formation properties downhole
    5.
    发明授权
    Method and apparatus for measuring mud and formation properties downhole 有权

    公开(公告)号：US06648083B2

    公开(公告)日：2003-11-18

    申请号：US10040701

    申请日：2001-10-26

    申请人： Michael Evans ,  Richard J Radtke ,  W Robert Sloan ,  Robert A Adolph

    发明人： Michael Evans ,  Richard J Radtke ,  W Robert Sloan ,  Robert A Adolph

    IPC分类号： E21B4900

    CPC分类号： E21B49/00 ,  E21B47/00

    摘要： A method is disclosed for determining a characteristic of a mud mixture surrounding a drilling tool within a borehole in which a drilling tool is received. The method includes turning the tool in the borehole. Energy is applied into the borehole from an energy source disposed in the tool. Measurement signals are received at a sensor disposed in the tool from a location around the borehole. The cross-section of the borehole is separated into at least a first sector and a second sector. A first measurement signal from the first sector is substantially in response to returning energy which results from the interaction of the applied energy with the mud mixture. A second measurement signal from the second sector is substantially in response to returning energy which results from the interaction of the applied energy with the formation. An indication of an intrinsic characteristic of the mud mixture is derived from the first measurement signals associated with the first sector of the borehole.

    Apparatus and methods for interlaced density and neutron measurements
    6.
    发明授权
    Apparatus and methods for interlaced density and neutron measurements 有权
    用于隔行密度和中子测量的装置和方法

    公开(公告)号：US07642507B2

    公开(公告)日：2010-01-05

    申请号：US11307632

    申请日：2006-02-15

    申请人： Richard J. Radtke ,  Michael Evans ,  Charles Flaum

    发明人： Richard J. Radtke ,  Michael Evans ,  Charles Flaum

    IPC分类号： G01V5/12

    CPC分类号： G01V5/145

    摘要： A tool for formation logging includes a support configured for movement in a borehole; a source mounted on the support, the source configured to emit neutrons and gamma rays; and at least one sensor mounted on the support and spaced apart from the source, wherein the at least one sensor is configured to detect at least one selected from the group consisting of gamma rays and neutrons. A method for formation logging in accordance with one embodiment of the invention includes emitting neutrons and gamma rays into a formation, using a source on a logging tool disposed in a borehole penetrating the formation; and detecting gamma-ray signals and neutron signals scattered by the formation, using at least one detector on the logging tool.

    摘要翻译： 用于地层测井的工具包括构造成在钻孔中移动的支撑件; 安装在支撑件上的源，该源被配置为发射中子和伽马射线; 以及安装在所述支撑件上并与所述源分隔开的至少一个传感器，其中所述至少一个传感器被配置为检测从由γ射线和中子组成的组中选择的至少一个。 根据本发明的一个实施例的用于地层测井的方法包括将中子和伽马射线发射到地层中，使用源于设在穿过地层的钻孔中的测井工具上的源; 以及使用测井工具上的至少一个检测器检测由地层散射的伽马射线信号和中子信号。

    Method of Determining Density of Underground Formations Using Neutron-Gamma Ray Measurements
    9.
    发明申请
    Method of Determining Density of Underground Formations Using Neutron-Gamma Ray Measurements 有权
    使用中子伽马射线测量法确定地层密度的方法

    公开(公告)号：US20120166087A1

    公开(公告)日：2012-06-28

    申请号：US13262643

    申请日：2010-04-14

    申请人： Michael Evans

    发明人： Michael Evans

    IPC分类号： G06F19/00 ,  G01V5/10

    CPC分类号： G01V5/101

    摘要： A method of determining the density of an underground formation surrounding a borehole from measurement of gamma rays arising from irradiation of the formation by a nuclear source in a tool body located in the borehole, and measurement of gamma-ray flux in the tool body at two different detector spacings from the source, the method comprising determining a substantially straight-line relationship between gamma-ray flux measurements at each different spacing with respect to the density of the formation for a tool body with no standoff; determining a relationship defining the deviation with respect to tool standoff of the density determined from the measured gamma-ray flux measurements at the two different detector spacings from the density calculated from the straight line relationships; and for a given pair of gamma-ray flux measurements at the different detector spacings, determining the intersection of the relationship defining the deviation with the straight line relationship so as to indicate the density of the formation surrounding the bore-hole; wherein the source is a neutron source and the gamma rays measured in the too! body are neutron-induced gamma rays resulting from neutron irradiation of the formation.

    摘要翻译： 一种通过从位于钻孔中的工具体中的核源照射产生的伽马射线的测量来确定钻孔周围地下地层的密度的方法，以及在两个工具体中测量γ射线通量 与源不同的检测器间隔，该方法包括确定在每个不同间隔处的伽马射线通量测量值相对于没有间隙的工具主体的密度的基本上的直线关系; 确定相对于从两个不同检测器间隔处测量的伽马射线通量测量值与从直线关系计算的密度确定的密度的刀具间隔的界定的关系; 并且对于在不同检测器间距处的给定的一对伽马射线通量测量，确定限定偏差的关系与直线关系的交点，以指示围绕钻孔的地层的密度; 其中源是中子源，伽马射线也在测量中！ 身体是由地层的中子照射产生的中子诱导的γ射线。

    Method and apparatus for shifting gears in transmissions
    10.
    发明授权
    Method and apparatus for shifting gears in transmissions 有权
    用于在变速器中换档的方法和装置

    公开(公告)号：US08185280B2

    公开(公告)日：2012-05-22

    申请号：US12003004

    申请日：2007-12-19

    申请人： Michael Evans ,  Simon Conway

    发明人： Michael Evans ,  Simon Conway

    IPC分类号： G06F17/00

    CPC分类号： F16H61/462 ,  F16H47/02 ,  F16H61/0403 ,  F16H61/47 ,  F16H2061/047 ,  F16H2306/44 ,  F16H2306/48

    摘要： A method of changing from a first gear position to a second gear position of a transmission arrangement is disclosed. The arrangement includes a rotatable transmission member, a hydrostatic continuously variable transmission coupled to the transmission member and operable to rotate the transmission member at a first speed, a controller configured to control operation of the hydrostatic continuously variable transmission, and a gear apparatus coupled to the transmission member and configured to be shiftable between at least the first gear position and the second gear position. The method includes controlling the hydrostatic continuously variable transmission, using the controller, to rotate the transmission member at the first speed, and shifting the gear apparatus from the first gear position to the second gear position while the transmission member is rotating at, or converging with, the first speed.

    摘要翻译： 公开了一种从变速器装置的第一档位改变到第二档位的方法。 该装置包括可旋转的传动构件，连接到传动构件并且可操作以以第一速度旋转传动构件的静压无级变速传动装置，配置成控制静液压无级变速器的操作的控制器，以及耦合到 传动构件，并且构造成能够在至少第一档位与第二档位之间移动。 该方法包括使用控制器控制静液压无级变速器，以一速度旋转变速器构件，并且在传动构件在第一档位转动或与其同步时将齿轮装置从第一档位移动到第二档位 ，第一速。