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    METHODS FOR EVALUATING CUTTINGS DENSITY WHILE DRILLING
    7.
    发明申请
    METHODS FOR EVALUATING CUTTINGS DENSITY WHILE DRILLING 有权
    用于评估钻孔时切割密度的方法

    公开(公告)号：US20130054146A1

    公开(公告)日：2013-02-28

    申请号：US13585562

    申请日：2012-08-14

    申请人： John Rasmus ,  William Lesso ,  John James ,  Edward M. Tollefsen ,  Scott Paul ,  Amanda L. Weber ,  Marcus Turner

    发明人： John Rasmus ,  William Lesso ,  John James ,  Edward M. Tollefsen ,  Scott Paul ,  Amanda L. Weber ,  Marcus Turner

    IPC分类号： G01V9/00 ,  G06F19/00

    CPC分类号： E21B47/10 ,  E21B47/06 ,  E21B49/005

    摘要： A method evaluating a cuttings density while drilling a subterranean wellbore includes acquiring first and second axially spaced pressure measurements in the wellbore. The pressure measurements may then be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval density may be measured while drilling and may be further processed to compute a cuttings density in the annulus. Moreover, changes in the computed interval density with time while drilling may be used as an indicator of a change in cuttings density.

    摘要翻译： 在钻探地下井眼时评估钻屑密度的方法包括在井眼中获取第一和第二轴向间隔的压力测量值。 然后可以处理压力测量以获得测量位置之间的钻井液的间隔密度。 可以使用包括大量轴向间隔开的压力传感器（例如，四个或更多或甚至六个或更多）的工具串，其通过有线钻杆与表面处理器电连接，以获得对应于各种井筒间隔的多个间隔密度。 间隔密度可以在钻孔时测量，并且可以被进一步处理以计算环空中的切屑密度。 此外，钻孔时计算的间隔密度随时间的变化可用作切削密度变化的指标。

    System and method for rig state detection
    8.
    发明授权
    System and method for rig state detection 有权
    钻机状态检测系统和方法

    公开(公告)号：US07128167B2

    公开(公告)日：2006-10-31

    申请号：US10400125

    申请日：2003-03-26

    申请人： Jonathan Dunlop ,  William Lesso ,  Walt Aldred ,  Richard Meehan ,  Matthew Richard Orton ,  William John Fitzgerald

    发明人： Jonathan Dunlop ,  William Lesso ,  Walt Aldred ,  Richard Meehan ,  Matthew Richard Orton ,  William John Fitzgerald

    IPC分类号： E21B44/00

    CPC分类号： E21B44/00 ,  G06N7/005

    摘要： A method and system is disclosed for automatically detecting the state of a drilling rig during the drilling process of a wellbore. Two or more, but preferably four independent input data channels are received, each input data channel representing a series of measurements made over time during the drilling process. Based on the input channels the most likely state of the drilling rig is detected from at least three possible rig states. The detection method is preferably probabilistic and even more preferably based on particle filtering techniques. The preferred systems and methods disclosed are also capable of detecting events and displaying or notifying drilling personnel of the detected events and suggesting corrective action.

    摘要翻译： 公开了一种用于在钻井的钻井过程中自动检测钻机的状态的方法和系统。 两个或多个，但是优选地接收四个独立的输入数据信道，每个输入数据信道表示在钻井过程中随时间推移的一系列测量。 根据输入通道，从至少三个可能的钻机状态检测钻机最可能的状态。 检测方法优选是概率性的，甚至更优选地基于颗粒过滤技术。 所公开的优选系统和方法还能够检测事件并显示或通知钻探人员检测到的事件并提出纠正措施。

    METHODS FOR EVALUATING INFLOW AND OUTFLOW IN A SUBTERRAEAN WELLBORE
    9.
    发明申请
    METHODS FOR EVALUATING INFLOW AND OUTFLOW IN A SUBTERRAEAN WELLBORE 有权
    评估地下水井流入和流出的方法

    公开(公告)号：US20130090855A1

    公开(公告)日：2013-04-11

    申请号：US13585628

    申请日：2012-08-14

    申请人： John Rasmus ,  William Lesso ,  John James

    发明人： John Rasmus ,  William Lesso ,  John James

    IPC分类号： E21B47/06

    CPC分类号： E21B47/06 ,  E21B21/08 ,  E21B34/06 ,  E21B43/12 ,  E21B47/04 ,  E21B47/10 ,  E21B49/003 ,  E21B49/087 ,  G01V3/38

    摘要： A method for evaluating inflow or outflow in a subterranean wellbore includes acquiring first and second axially spaced pressure measurements in the wellbore. The pressure measurements may then be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval density may be measured during static conditions or while drilling and may be further processed to compute a density of an inflow constituent in the annulus. Changes in the computed interval density with time may be used as an indicator of either an inflow event or an outflow event.

    摘要翻译： 一种用于评估地下井眼中的流入或流出的方法包括获取井筒中的第一和第二轴向间隔的压力测量值。 然后可以处理压力测量以获得测量位置之间的钻井液的间隔密度。 可以使用包括大量轴向间隔开的压力传感器（例如，四个或更多或甚至六个或更多）的工具串，其通过有线钻杆与表面处理器电连接，以获得对应于各种井筒间隔的多个间隔密度。 间隔密度可以在静态条件下或在钻井时测量，并且可以进一步处理以计算环空中的流入成分的密度。 计算的间隔密度随时间的变化可用作流入事件或流出事件的指标。

    METHODS FOR EVALUATING BOREHOLE VOLUME CHANGES WHILE DRILLING
    10.
    发明申请
    METHODS FOR EVALUATING BOREHOLE VOLUME CHANGES WHILE DRILLING 有权
    用于评估钻孔时钻孔体积变化的方法

    公开(公告)号：US20130090854A1

    公开(公告)日：2013-04-11

    申请号：US13585601

    申请日：2012-08-14

    申请人： John Rasmus ,  William Lesso ,  John James

    发明人： John Rasmus ,  William Lesso ,  John James

    IPC分类号： G01V9/00 ,  G06F15/00

    CPC分类号： E21B21/08 ,  E21B7/00 ,  E21B47/06 ,  E21B47/10 ,  E21B49/005 ,  G01V9/00 ,  G06F15/00

    摘要： A method identifying a wellbore volume change while drilling a subterranean wellbore includes acquiring first and second axially spaced pressure measurements in the wellbore. The wellbore volume change may include, for example, a borehole washout or a borehole pack-off. The pressure measurements may then be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval densities may be measured while drilling and may be further evaluated as an indicator of a wellbore volume change.

    摘要翻译： 在钻探地下井眼时识别井眼体积变化的方法包括在井眼中获取第一和第二轴向间隔的压力测量值。 井眼体积变化可以包括例如钻孔冲洗或钻孔包装。 然后可以处理压力测量以获得测量位置之间的钻井液的间隔密度。 可以使用包括大量轴向间隔开的压力传感器（例如，四个或更多或甚至六个或更多）的工具串，其通过有线钻杆与表面处理器电连接，以获得对应于各种井筒间隔的多个间隔密度。 间隔密度可以在钻井时测量，并可进一步评估为井眼体积变化的指标。