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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。

    METHODS FOR DETERMINING FORMATION STRENGTH OF A WELLBORE
    2.
    发明申请
    METHODS FOR DETERMINING FORMATION STRENGTH OF A WELLBORE 有权
    确定井筒形成强度的方法

    公开(公告)号：US20130186688A1

    公开(公告)日：2013-07-25

    申请号：US13554649

    申请日：2012-07-20

    申请人： John C. Rasmus ,  Vladimir Vaynshteyn ,  Roberto Suarez-Rivera

    发明人： John C. Rasmus ,  Vladimir Vaynshteyn ,  Roberto Suarez-Rivera

    IPC分类号： E21B47/06

    CPC分类号： E21B47/06 ,  E21B21/08 ,  E21B43/26

    摘要： A system and a method may determine formation strength of a well. The system and the method may use pressure measurements and temperature measurements to determine controlled fracture pressures before the uncontrolled fracture pressure is reached. The system and the method may use pressure measurements and temperature measurements to determine closure stresses while drilling and may use the closure stresses with core and log measurements to optimize a hydraulic stimulation program.

    摘要翻译： 系统和方法可以确定井的地层强度。 该系统和方法可以使用压力测量和温度测量来确定在达到不受控的断裂压力之前的受控断裂压力。 系统和方法可以使用压力测量和温度测量来确定钻井时的闭合应力，并且可以使用具有岩心和对数测量的闭合应力来优化液压刺激程序。

    IDENTIFICATION OF CASING COLLARS WHILE DRILLING AND POST DRILLING USING LWD AND WIRELINE MEASUREMENTS
    3.
    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。

    Method and Apparatus for Visualizing Multi-Dimensional Well Logging Data with Shapelets
    5.
    发明申请
    Method and Apparatus for Visualizing Multi-Dimensional Well Logging Data with Shapelets 有权
    用Shapelet可视化多维测井数据的方法和装置

    公开(公告)号：US20120201425A1

    公开(公告)日：2012-08-09

    申请号：US13375507

    申请日：2009-10-15

    申请人： Christian Stolte ,  John C. Rasmus ,  Koji Ito ,  Shahzad A. Asif ,  Denis Heliot

    发明人： Christian Stolte ,  John C. Rasmus ,  Koji Ito ,  Shahzad A. Asif ,  Denis Heliot

    IPC分类号： G06K9/00

    CPC分类号： G06T19/00 ,  G01V3/38

    摘要： A method for visualizing parametric logging data includes interpreting logging data sets, each logging data set corresponding to a distinct value of a progression parameter, calculating a geometric image including a representation of data from each of the logging data sets corresponding to a wellbore measured depth, and displaying the geometric image(s) at a position along a well trajectory corresponding to the wellbore measured depth. The progression parameter includes time, a resistivity measurement depth, differing tool modes that are sampling different volumes of investigation, and/or sampling different physical properties. The geometric images include a number of parallel lines having lengths determined according to the logging data and/or an azimuthal projection of the logging data, a number of concentric axial projections, and/or shapelets determined from parallel lines and/or concentric axial projections. The method includes dynamically determining a selected measured depth, measured depth interval, and/or azimuthal projection angle.

    摘要翻译： 用于可视化参数记录数据的方法包括解释记录数据集，每个记录数据集对应于进展参数的不同值，计算包括对应于井筒测量深度的每个记录数据集的数据的表示的几何图像， 并且沿着与井筒测量深度相对应的井轨迹的位置显示几何图像。 进展参数包括时间，电阻率测量深度，不同的工具模式，其对不同体积的调查进行采样和/或采样不同的物理特性。 几何图像包括具有根据记录数据确定的长度和/或记录数据的方位角投影，多个同轴轴向突起和/或从平行线和/或同心轴向突起确定的形状的多条平行线。 该方法包括动态地确定所选择的测量深度，测量深度间隔和/或方位投影角度。

    Method and apparatus for improved measurement of drilling conditions
    6.
    发明授权
    Method and apparatus for improved measurement of drilling conditions 失效
    改善钻井条件测量的方法和装置

    公开(公告)号：US5654503A

    公开(公告)日：1997-08-05

    申请号：US710043

    申请日：1996-09-11

    申请人： John C. Rasmus

    发明人： John C. Rasmus

    IPC分类号： E21B44/00

    CPC分类号： E21B44/00

    摘要： In drilling a well, a condition at the surface which contributes to a downhole condition is identified. A set of observed measurements is collected for the surface and downhole conditions. From this set of observations a predictor equation is derived which expresses the downhole condition as a function of the measured surface condition. After the predictor equation has been developed, it is applied to a measured surface condition to estimate the resulting downhole condition.

    摘要翻译： 在钻井时，确定了有助于井下状况的表面状况。 对于表面和井下条件收集一组观测值。 根据这组观测结果，推导出一个预测因子方程，其表示作为测量的表面状态的函数的井下条件。 在预测器方程已经开发之后，将其应用于测量的表面状况以估计所产生的井下状况。

    Optimized drilling with positive displacement drilling motors
    7.
    发明授权
    Optimized drilling with positive displacement drilling motors 失效
    利用正排量钻机优化钻孔

    公开(公告)号：US5368108A

    公开(公告)日：1994-11-29

    申请号：US142734

    申请日：1993-10-26

    申请人： Walter D. Aldred ,  Dominic P. J. McCann ,  John C. Rasmus

    发明人： Walter D. Aldred ,  Dominic P. J. McCann ,  John C. Rasmus

    IPC分类号： E21B44/00

    CPC分类号： E21B44/005

    摘要： To optimize the drilling of a borehole with a positive displacement downhole mud motor which rotates a drill bit, the hydraulic power input to the motor and the mechanical power output of the motor are calculated based upon measurements of weight-on-bit (WOB), torque, bit rotational speed and pressure drop across the motor. These input and output values are plotted versus one another to produce a characteristic curve which indicates the maximum achievable power output of the motor. The values used by the driller are compared to such maximum to enable adjustment of WOB such that drilling at maximum efficiency for a given lithology can be achieved. Other important information such as optimum standpipe pressure and operating efficiency and wear of the motor also are determined.

    摘要翻译： 为了优化利用旋转钻头的正位移井下泥浆马达钻孔钻孔，基于钻头重量（WOB）的测量来计算输入到马达的液压动力和马达的机械动力输出， 转矩，转速和电机两端的压降。 这些输入和输出值相互绘制，以产生指示电机最大可实现功率输出的特性曲线。 将钻机使用的值与这样的最大值进行比较，以使得能够调整WOB，使得可以实现给定岩性的最大效率的钻孔。 还确定了其他重要信息，例如最佳立管压力和操作效率以及电动机的磨损。

    Applications Based On Fluid Properties Measured Downhole
    9.
    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.