公开(公告)号：US08442769B2

公开(公告)日：2013-05-14

申请号：US12742514

申请日：2008-11-11

申请人： Wayne J. Phillips ,  Georgiy Bordakov ,  Alexander Kostin ,  Shyam Mehta ,  Denis Heliot ,  John C. Rasmus

发明人： Wayne J. Phillips ,  Georgiy Bordakov ,  Alexander Kostin ,  Shyam Mehta ,  Denis Heliot ,  John C. Rasmus

IPC分类号： E21B47/022

CPC分类号： E21B47/022 ,  E21B47/04

摘要： Various methods are disclosed, comprising obtaining a plurality of raw depth measurements for a wellbore; obtaining survey data about a bottom hole assembly; obtaining depth compensation information; calculating a plurality of compensated depth measurements from the raw depth measurements and the depth compensation information and one or more additional corrections for residual pipe compliance, tide, and rig heave; calculating sag angle and correcting the survey data with the sag angle; determining a high fidelity wellbore trajectory from the compensated depth measurements and the survey data; and then employing the high fidelity wellbore trajectory in various drilling, formation evaluation, and production and reservoir analysis applications. Depth compensation information may comprise at least one of weight on bit, a friction factor, temperature profile, borehole profile, drill string mechanical properties, hookload, and drilling fluid property. The surveys may include both static and continuous surveys.

摘要翻译： 公开了各种方法，包括获得井筒的多个原始深度测量值; 获取有关井底组件的调查数据; 获取深度补偿信息; 从原始深度测量和深度补偿信息计算多个补偿深度测量值，以及对于残余管道顺应性，潮汐和钻井起重的一个或多个附加校正; 计算下垂角度并用下垂角度校正测量数据; 从补偿深度测量和测量数据确定高保真井筒轨迹; 然后在各种钻井，地层评估，生产和油藏分析应用中采用高保真井眼轨迹。 深度补偿信息可以包括钻头重量，摩擦因数，温度分布，钻孔剖面，钻柱机械性能，钩载和钻井液特性中的至少一个。 调查可能包括静态和连续调查。

公开(公告)号：US20100307742A1

公开(公告)日：2010-12-09

申请号：US12742514

申请日：2008-11-11

申请人： Wayne J. Phillips ,  Georgiy Bordakov ,  Alexander Kostin ,  Shyam Mehta ,  Denis Heliot ,  John C. Rasmus

发明人： Wayne J. Phillips ,  Georgiy Bordakov ,  Alexander Kostin ,  Shyam Mehta ,  Denis Heliot ,  John C. Rasmus

IPC分类号： E21B47/00

CPC分类号： E21B47/022 ,  E21B47/04

摘要： Various methods are disclosed, comprising obtaining a plurality of raw depth measurements for a wellbore; obtaining survey data about a bottom hole assembly; obtaining depth compensation information; calculating a plurality of compensated depth measurements from the raw depth measurements and the depth compensation information and one or more additional corrections for residual pipe compliance, tide, and rig heave; calculating sag angle and correcting the survey data with the sag angle; determining a high fidelity wellbore trajectory from the compensated depth measurements and the survey data; and then employing the high fidelity wellbore trajectory in various drilling, formation evaluation, and production and reservoir analysis applications. Depth compensation information may comprise at least one of weight on bit, a friction factor, temperature profile, borehole profile, drill string mechanical properties, hookload, and drilling fluid property. The surveys may include both static and continuous surveys.

摘要翻译： 公开了各种方法，包括获得井筒的多个原始深度测量值; 获取有关井底组件的调查数据; 获取深度补偿信息; 从原始深度测量和深度补偿信息计算多个补偿深度测量值，以及对于残余管道顺应性，潮汐和钻井起重的一个或多个附加校正; 计算下垂角度并用下垂角度校正测量数据; 从补偿深度测量和测量数据确定高保真井筒轨迹; 然后在各种钻井，地层评估，生产和油藏分析应用中采用高保真井眼轨迹。 深度补偿信息可以包括钻头重量，摩擦因数，温度分布，钻孔剖面，钻柱机械性能，钩载和钻井液特性中的至少一个。 调查可能包括静态和连续调查。

公开(公告)号：US08121788B2

公开(公告)日：2012-02-21

申请号：US11963225

申请日：2007-12-21

申请人： Georgiy Bordakov ,  Alexander Kostin

发明人： Georgiy Bordakov ,  Alexander Kostin

IPC分类号： G01V1/40

CPC分类号： E21B47/04

摘要： A method for correcting errors in LWD depths includes performing torque and drag model analysis using drillstring weight, downhole friction, weight on bit, thermal expansion, rig heave and tide to produce a corrected time-depth file, wherein the torque and drag model is automatically calibrated using effective block weight, drillpipe wear, and sliding friction; and correcting time-based LWD data using the corrected time-depth file to produce depth-corrected LWD data. A system for correcting errors in LWD depths includes a processor and a memory that stores a program having instructions for: performing torque and drag model analysis using drillstring weight, downhole friction, weight on bit, thermal expansion, rig heave and tide to produce a corrected time-depth file, wherein the torque and drag model is automatically calibrated using effective block weight, drillpipe wear, and sliding friction; and correcting time-based LWD data using the corrected time-depth file to produce depth-corrected LWD data.

摘要翻译： 用于校正LWD深度误差的方法包括使用钻柱重量，井下摩擦，钻头重量，热膨胀，钻机升沉和潮汐来执行扭矩和拖动模型分析，以产生校正的时间深度文件，其中扭矩和阻力模型是自动的 使用有效的块重量，钻杆磨损和滑动摩擦进行校准; 以及使用校正的时间深度文件校正基于时间的LWD数据，以产生深度校正的LWD数据。 用于校正LWD深度中的错误的系统包括处理器和存储器，其存储具有以下指令的程序的程序：使用钻柱重量，井下摩擦，钻头重量，热膨胀，钻机起重和潮汐来执行扭矩和拖动模型分析，以产生校正的 时间深度文件，其中扭矩和阻力模型使用有效的块重量，钻杆磨损和滑动摩擦自动校准; 以及使用校正的时间深度文件校正基于时间的LWD数据，以产生深度校正的LWD数据。

公开(公告)号：US08362915B2

公开(公告)日：2013-01-29

申请号：US12609589

申请日：2009-10-30

申请人： Shyam Mehta ,  Georgiy Bordakov

发明人： Shyam Mehta ,  Georgiy Bordakov

IPC分类号： G01V3/00

CPC分类号： E21B47/0006 ,  E21B47/04 ,  E21B47/122

摘要： A system and a method for determining stretch or compression of a drill string is disclosed. Sensors are positioned along the drill string for collecting data for determining the stretch or compression. The stretch or the compression of the drill string may be used to calculate depths at which measurements are obtained by tools associated with the drill string.

摘要翻译： 公开了一种用于确定钻柱的拉伸或压缩的系统和方法。 传感器沿着钻柱定位以收集用于确定拉伸或压缩的数据。 钻柱的拉伸或压缩可用于计算通过与钻柱相关联的工具获得测量的深度。

公开(公告)号：US20090043510A1

公开(公告)日：2009-02-12

申请号：US11836269

申请日：2007-08-09

申请人： David F. Allen ,  Georgiy Bordakov

发明人： David F. Allen ,  Georgiy Bordakov

IPC分类号： G01V1/40

CPC分类号： G01V3/20 ,  G01V3/38

摘要： A method for estimating hydrocarbon volume in a layered subsurface formation includes determining a vertical resistivity and a horizontal resistivity in the formation. A bound water saturation and a total porosity of individual layers of the formation are determined. Values of horizontal resistivity and vertical resistivity of the formation are calculated based on the bound water saturation and the total porosity for each layer and on an estimated irreducible bulk volume of water in each layer. The estimated values are compared to the determined horizontal resistivity and vertical resistivity. The estimated irreducible water saturation in each layer is adjusted and estimating the values is repeated until differences between the estimated values and the determined vertical and horizontal resistivity values fall below a selected threshold. The hydrocarbon volume is estimated from the adjusted irreducible water saturation for each layer.

摘要翻译： 用于估计层状地下地层中的烃体积的方法包括确定地层中的垂直电阻率和水平电阻率。 确定地层单个层的结合水饱和度和总孔隙率。 基于每层的结合水饱和度和总孔隙率以及每层估计的不可约体积体积计算地层的水平电阻率和垂直电阻率值。 将估计值与确定的水平电阻率和垂直电阻率进行比较。 调整每个层中估计的不可约水饱和度，并重复估计值，直到估计值与所确定的垂直和水平电阻率值之间的差值低于选定的阈值。 碳氢化合物体积根据每层调整后的不可约水饱和度估算。

公开(公告)号：US07617050B2

公开(公告)日：2009-11-10

申请号：US11836269

申请日：2007-08-09

申请人： David F. Allen ,  Georgiy Bordakov

发明人： David F. Allen ,  Georgiy Bordakov

IPC分类号： G01V1/40 ,  E21B49/00

CPC分类号： G01V3/20 ,  G01V3/38

摘要： A method for estimating hydrocarbon volume in a layered subsurface formation includes determining a vertical resistivity and a horizontal resistivity in the formation. A bound water saturation and a total porosity of individual layers of the formation are determined. Values of horizontal resistivity and vertical resistivity of the formation are calculated based on the bound water saturation and the total porosity for each layer and on an estimated irreducible bulk volume of water in each layer. The estimated values are compared to the determined horizontal resistivity and vertical resistivity. The estimated irreducible water saturation in each layer is adjusted and estimating the values is repeated until differences between the estimated values and the determined vertical and horizontal resistivity values fall below a selected threshold. The hydrocarbon volume is estimated from the adjusted irreducible water saturation for each layer.

摘要翻译： 用于估计层状地下地层中的烃体积的方法包括确定地层中的垂直电阻率和水平电阻率。 确定地层单个层的结合水饱和度和总孔隙率。 基于每层的结合水饱和度和总孔隙率以及每层估计的不可约体积体积计算地层的水平电阻率和垂直电阻率值。 将估计值与确定的水平电阻率和垂直电阻率进行比较。 调整每个层中估计的不可约水饱和度，并重复估计值，直到估计值与所确定的垂直和水平电阻率值之间的差值低于选定的阈值。 碳氢化合物体积根据每层调整后的不可约水饱和度估算。

公开(公告)号：US20090132169A1

公开(公告)日：2009-05-21

申请号：US11942031

申请日：2007-11-19

申请人： Georgiy Bordakov

发明人： Georgiy Bordakov

IPC分类号： G01V1/40 ,  G01V1/28

CPC分类号： G01V1/30 ,  G01V1/50

摘要： A method for identifying a nature of formation contrasts that cause changes in seismic or sonic wave properties in a low-frequency range includes obtaining a selected property of a formation surrounding a borehole, wherein the selected property is at least one selected from the group consisting of a permeability and a fracture density; decomposing seismic signals into a set of instant amplitudes and frequency fields; calculating a plurality of low-frequency attributes characterizing the low-frequency range of the seismic signals; and establishing a correlation between at least one of the plurality of the low-frequency attributes and the selected property of the formation.

摘要翻译： 用于识别在低频范围内导致地震或声波特性变化的地层性质的对比的方法包括获得围绕钻孔的地层的选定性质，其中所选择的性质是选自以下的至少一种： 渗透率和断裂密度; 将地震信号分解成一组即时振幅和频域; 计算表征地震信号的低频范围的多个低频属性; 以及在所述多个所述低频属性中的至少一个与所述地层的选定属性之间建立相关性。