Methods for evaluating cuttings density while drilling
    1.
    发明授权
    Methods for evaluating cuttings density while drilling 有权
    钻井时切屑密度的评估方法

    公开(公告)号:US09228430B2

    公开(公告)日:2016-01-05

    申请号:US13585562

    申请日:2012-08-14

    IPC分类号: E21B47/10 E21B47/06 E21B49/00

    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。

    METHODS FOR EVALUATING CUTTINGS DENSITY WHILE DRILLING
    2.
    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

    IPC分类号: G01V9/00 G06F19/00

    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。

    WELLBORE INTERVAL DENSITIES
    3.
    发明申请
    WELLBORE INTERVAL DENSITIES 审中-公开
    井壁间距密度

    公开(公告)号:US20130048380A1

    公开(公告)日:2013-02-28

    申请号:US13585495

    申请日:2012-08-14

    IPC分类号: E21B47/00 E21B47/06

    摘要: A method for estimating one or more interval densities 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.

    摘要翻译: 一种用于估计地下井眼中的一个或多个间隔密度的方法包括获取井眼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。

    System and Method for Managing Temperature in a Wellbore
    4.
    发明申请
    System and Method for Managing Temperature in a Wellbore 有权
    用于管理井筒温度的系统和方法

    公开(公告)号:US20120055672A1

    公开(公告)日:2012-03-08

    申请号:US13194462

    申请日:2011-07-29

    IPC分类号: E21B36/00

    摘要: A system and a method manage temperature in a wellbore. A thermal barrier may be positioned within the drill pipe and/or the drill collars to obtain a desired downhole temperature and/or control the effect of thermal energy in high-angle and horizontal wellbores. Downhole measurements, such as real-time measurements and/or recorded measurements, may be used to update models, such as steady state models and/or dynamic models. The downhole measurements may validate the static temperature gradient and may provide information about the thermal characteristics of the one or more formations in which the wellbore is located.

    摘要翻译: 一种系统和方法来管理井眼中的温度。 热障可以位于钻管和/或钻铤内以获得期望的井下温度和/或控制热能在高角度和水平井筒中的影响。 诸如实时测量和/或记录的测量的井下测量可用于更新诸如稳态模型和/或动态模型的模型。 井下测量可以验证静态温度梯度,并且可以提供关于井眼所在的一个或多个地层的热特性的信息。

    System and method for managing temperature in a wellbore
    5.
    发明授权
    System and method for managing temperature in a wellbore 有权
    用于管理井眼温度的系统和方法

    公开(公告)号:US08727035B2

    公开(公告)日:2014-05-20

    申请号:US13194462

    申请日:2011-07-29

    IPC分类号: E21B36/00

    摘要: A system and a method manage temperature in a wellbore. A thermal barrier may be positioned within the drill pipe and/or the drill collars to obtain a desired downhole temperature and/or control the effect of thermal energy in high-angle and horizontal wellbores. Downhole measurements, such as real-time measurements and/or recorded measurements, may be used to update models, such as steady state models and/or dynamic models. The downhole measurements may validate the static temperature gradient and may provide information about the thermal characteristics of the one or more formations in which the wellbore is located.

    摘要翻译: 一种系统和方法来管理井眼中的温度。 热障可以位于钻管和/或钻铤内以获得期望的井下温度和/或控制热能在高角度和水平井筒中的影响。 诸如实时测量和/或记录的测量的井下测量可用于更新诸如稳态模型和/或动态模型的模型。 井下测量可以验证静态温度梯度,并且可以提供关于井眼所在的一个或多个地层的热特性的信息。

    Method and system for logging a well while fishing for the logging tool
    6.
    发明授权
    Method and system for logging a well while fishing for the logging tool 失效
    测井工具钓鱼时记录井的方法和系统

    公开(公告)号:US5477921A

    公开(公告)日:1995-12-26

    申请号:US277461

    申请日:1994-07-19

    摘要: This invention provides a method and system for logging an earth formation with a logging tool that is stuck (lodged) in a well bore traversing the earth formation while fishing for the stuck logging tool. This procedure is accomplished by re-establishing communication between the stuck logging tool and surface equipment during the fishing process. Communication is established by reconnecting the electrical conductors in the supporting cable after the cable has been severed in order to install fishing equipment in the well bore around the cable supporting the logging tool. The procedure to reconnect the electrical conductors requires identifying conductors in each end of the severed cable and appropriately matching conductors from each cable end to achieve electrical communication. Once there is electrical communication between the stuck logging tool and surface logging equipment, logging procedures can be continued even during the fishing for the stuck logging tool.

    摘要翻译: 本发明提供了一种用测井工具记录地层的方法和系统,该测井工具被卡住(沉积)在穿过地层的井眼中,同时钓鱼卡住的测井工具。 该过程是通过在捕鱼过程中重新建立卡住的测井工具和地面设备之间的通信而实现的。 在电缆断开之后,通过重新连接支撑电缆中的电导体来建立通信,以便将钓鱼设备安装在支撑测井工具的电缆周围的井眼中。 重新连接电导体的步骤需要识别断开的电缆的每端的导体,并且适当地匹配每个电缆端的导体以实现电通信。 一旦在卡住的测井工具和地面测井设备之间存在电气通讯,即使在卡住的测井工具的钓鱼期间,也可以继续测井程序。