Method to Detect Drilling Dysfunctions
    11.
    发明申请
    Method to Detect Drilling Dysfunctions 审中-公开
    检测钻孔功能障碍的方法

    公开(公告)号:US20150275648A1

    公开(公告)日:2015-10-01

    申请号:US14428212

    申请日:2013-10-22

    IPC分类号: E21B45/00 G01M99/00

    摘要: Methods and systems for detecting downhole bit dysfunction in a drill bit penetrating a subterranean formation comprising receiving a plurality of drilling parameters characterizing a wellbore drilling operation and calculating bit aggressiveness (μ) at each of a plurality of points during drilling, wherein each point corresponds to time, depth, or both. A depth-of-cut (DOC), time derivative of bit aggressiveness ({dot over (μ)}), calculated as dμ/dt, or both, is calculated at each of the plurality of points. A two-dimensional data representation of the plurality of points, comprising μ in one dimension and DOC, {dot over (μ)}, or both, in another dimension is created. Data features are extracted from the two-dimensional data representation and downhole bit dysfunction is identified by comparing the extracted data features with predefined criteria.

    摘要翻译: 用于检测穿透地下地层的钻头中井下钻头功能障碍的方法和系统,包括接收表征井眼钻井操作的多个钻孔参数,以及在钻孔期间在多个点的每个点处计算钻头侵蚀性(μ),其中每个点对应于 时间,深度或两者兼而有之。 在多个点中的每个点处计算切削深度(DOC),位攻击性的时间导数({dot over(μ)}),计算为dμ/ dt或两者。 创建多个点的二维数据表示,包括一维中的μ和DOC,{dot over(μ)}或二者在另一个维度上的二维数据表示。 从二维数据表示中提取数据特征,并通过将提取的数据特征与预定标准进行比较来识别井下位功能障碍。

    Method of optimizing drilling ramp-up

    公开(公告)号:US10968730B2

    公开(公告)日:2021-04-06

    申请号:US16017484

    申请日:2018-06-25

    摘要: A method of optimizing drilling ramp-up is provided herein. More specifically, a method of ramping up a drilling operation from a static condition (0, 0) to optimum drilling parameter values (WOB*, RPM*) is provided. The method includes identifying a set of drilling control variables used in forming the wellbore. Examples include weight-on-bit (WOB) and rate of penetration (RPM). The method additionally includes selecting desired control variable values for a first identified drilling stage. The values may be generically referred to as (V1, V2). The method also includes increasing the drilling control variables from (0, 0) to pre-defined drilling control variable values (V1, V2). Preferably, V1 is a WOB value while V2 is a rotation speed value (RPM). The method also comprises monitoring a performance index (PI), wherein (PI) is a combination of torque (TQ) and penetration rate (RPM). The method then includes determining an optimal path to optimum drilling parameter values (WOB*, RPM*) using the Performance Index (PI).

    Method of Optimizing Drilling Ramp-Up
    13.
    发明申请

    公开(公告)号:US20190032467A1

    公开(公告)日:2019-01-31

    申请号:US16017484

    申请日:2018-06-25

    摘要: A method of optimizing drilling ramp-up is provided herein. More specifically, a method of ramping up a drilling operation from a static condition (0, 0) to optimum drilling parameter values (WOB*, RPM*) is provided. The method includes identifying a set of drilling control variables used in forming the wellbore. Examples include weight-on-bit (WOB) and rate of penetration (RPM). The method additionally includes selecting desired control variable values for a first identified drilling stage. The values may be generically referred to as (V1, V2). The method also includes increasing the drilling control variables from (0, 0) to pre-defined drilling control variable values (V1, V2). Preferably, V1 is a WOB value while V2 is a rotation speed value (RPM). The method also comprises monitoring a performance index (PI), wherein (PI) is a combination of torque (TQ) and penetration rate (RPM). The method then includes determining an optimal path to optimum drilling parameter values (WOB*, RPM*) using the Performance Index (PI).

    Methods to Estimate Downhole Drilling Vibration Indices From Surface Measurement
    14.
    发明申请
    Methods to Estimate Downhole Drilling Vibration Indices From Surface Measurement 有权
    从表面测量估计井下钻孔振动指数的方法

    公开(公告)号:US20120123757A1

    公开(公告)日:2012-05-17

    申请号:US13386862

    申请日:2010-08-06

    IPC分类号: G06F17/10 G06F19/00 G01V1/40

    CPC分类号: E21B44/00 E21B45/00

    摘要: Method to estimate severity of downhole vibration for a wellbore drill tool assembly, comprising: identifying a dataset comprising selected drill tool assembly parameters; selecting a reference level of downhole vibration index for the drill tool assembly; identifying a surface drilling parameter and calculating a reference surface vibration attribute for the selected reference level of downhole vibration index; determining a surface parameter vibration attribute derived from at least one surface measurement or observation obtained in a drilling operation, the determined surface parameter vibration attribute corresponding to the identified surface drilling parameter; and estimating a downhole vibration index severity indicator by evaluating the determined surface parameter vibration attribute with respect to the identified reference surface vibration attribute.

    摘要翻译: 一种用于估计井眼钻具组件的井下振动的严重性的方法,包括:识别包括所选择的钻具组件参数的数据集; 选择钻具组件的井下振动指数的参考水平; 识别表面钻孔参数并计算所选参考水平的井下振动指数的参考表面振动属性; 确定从在钻井操作中获得的至少一个表面测量或观察得出的表面参数振动属性,所确定的与所识别的表面钻孔参数对应的表面参数振动属性; 以及通过相对于所识别的参考表面振动属性评估所确定的表面参数振动属性来估计井下振动指数严重性指标。

    Methods to estimate downhole drilling vibration indices from surface measurement
    15.
    发明授权
    Methods to estimate downhole drilling vibration indices from surface measurement 有权
    从表面测量估计井下钻孔振动指数的方法

    公开(公告)号:US08798978B2

    公开(公告)日:2014-08-05

    申请号:US13386862

    申请日:2010-08-06

    IPC分类号: G06G7/48 E21B45/00 E21B44/00

    CPC分类号: E21B44/00 E21B45/00

    摘要: Method to estimate severity of downhole vibration for a wellbore drill tool assembly, comprising: identifying a dataset comprising selected drill tool assembly parameters; selecting a reference downhole vibration index for the drill tool assembly; identifying a surface parameter and calculating a reference surface vibration attribute for the selected reference downhole vibration index; determining a surface vibration attribute derived from at least one surface measurement or observation obtained in a drilling operation, the determined surface vibration attribute corresponding to the identified surface parameter; and estimating a downhole vibration index by evaluating the determined surface vibration attribute with respect to the identified reference surface vibration attribute.

    摘要翻译: 一种用于估计井眼钻具组件的井下振动的严重性的方法,包括:识别包括所选择的钻具组件参数的数据集; 选择钻具组件的参考井下振动指数; 识别表面参数并计算所选参考井下振动指数的参考表面振动属性; 确定从在钻井操作中获得的至少一个表面测量或观察得出的表面振动属性,所确定的表面振动属性对应于所识别的表面参数; 以及通过相对于所识别的参考表面振动属性评估所确定的表面振动属性来估计井下振动指数。

    Methods to estimate downhole drilling vibration amplitude from surface measurement
    16.
    发明授权
    Methods to estimate downhole drilling vibration amplitude from surface measurement 有权
    从表面测量估计井下钻孔振动振幅的方法

    公开(公告)号:US08977523B2

    公开(公告)日:2015-03-10

    申请号:US13386859

    申请日:2010-08-06

    摘要: Method to estimate severity of downhole vibration for a drill tool assembly, including: identifying a dataset comprising selected drill tool assembly parameters; selecting a reference level of downhole vibration amplitude for the drill tool assembly; identifying a surface drilling parameter and calculating a reference surface vibration attribute for the selected reference level of downhole vibration amplitude; determining a surface parameter vibration attribute derived from at least one surface measurement or observation obtained in a drilling operation, the determined surface parameter vibration attribute corresponding to the identified surface drilling parameter; and estimating a downhole vibration severity indicator by evaluating the determined surface parameter vibration attribute with respect to the identified reference surface vibration attribute.

    摘要翻译: 用于估计钻具组件的井下振动的严重性的方法,包括:识别包括所选择的钻具组件参数的数据集; 选择钻具组件的井下振动振幅的参考水平; 识别表面钻孔参数并计算所选择的井下振动幅度的参考水平的参考表面振动属性; 确定从在钻井操作中获得的至少一个表面测量或观察得出的表面参数振动属性,所确定的与所识别的表面钻孔参数对应的表面参数振动属性; 以及通过相对于所识别的参考表面振动属性评估所确定的表面参数振动属性来估计井下振动严重性指标。