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1. 发明授权

US08528637B2 Downhole depth computation methods and related system 有权
标题翻译：井下深度计算方法及相关系统
公开(公告)号：US08528637B2
公开(公告)日：2013-09-10
申请号：US13406776
申请日：2012-02-28
申请人： Gary J. Cresswell , William J. Befeld , Robert Estes
发明人： Gary J. Cresswell , William J. Befeld , Robert Estes
IPC分类号： E21B47/09
CPC分类号： E21B47/04
摘要： A method for determining depth in a wellbore uses inertial navigation in conjunction with a database having one or more measured parameters correlated with depth. The measured parameter may be the lengths of stands forming a drill string, prior survey data relating to a naturally occurring feature such as formation lithology, or data relating to a human made feature such as collars in a casing string. The downhole processor may use accelerometer measurements to calculate a measured depth of a BHA and access the database to retrieve a predicted depth that corresponds with one or more sensor measurements (e.g., motion indicating the addition of a stand to a drill string). Thereafter, if the downhole processor determines that the predicted depth is in agreement with the calculated depth, the processor stores the predicted depth and/or associates the predicted depth with directional surveys taken along the wellbore.
摘要翻译：用于确定井眼深度的方法使用惯性导航与具有与深度相关的一个或多个测量参数的数据库结合使用。测量参数可以是形成钻柱的立场的长度，与诸如地层岩性的天然存在特征相关的先前测量数据，或与人造特征（例如套管柱中的套环）有关的数据。井下处理器可以使用加速度计测量来计算BHA的测量深度并访问数据库以检索与一个或多个传感器测量值相对应的预测深度（例如，指示向钻柱添加支架的运动）。此后，如果井下处理器确定预测深度与计算出的深度一致，则处理器存储预测深度和/或将预测深度与沿着井眼进行的定向勘测相关联。

2. 发明授权

US08973651B2 Modular anchoring sub for use with a cutting tool 有权
标题翻译：模块化锚固用于切削工具
公开(公告)号：US08973651B2
公开(公告)日：2015-03-10
申请号：US13161667
申请日：2011-06-16
申请人： Karsten Fuhst , Sven Krueger , William J. Befeld
发明人： Karsten Fuhst , Sven Krueger , William J. Befeld
IPC分类号： E21B29/00 , E21B23/01
CPC分类号： E21B29/005 , E21B23/01
摘要： A cutting tool that inserts into a tubular for cutting the tubular from within. The cutting tool includes a motor, a cutting head, permanent anchor between the motor and cutting head, an electronics portion, and a modular anchoring sub that can be between the motor and electronics portion or on the upper end of the cutting tool. The modular anchoring sub provides flexibility in where anchoring elements are positioned so that depending on the application, the modular anchoring sub can be positioned so that it provides its maximum anchoring force for stabilizing the cutting tool during use.
摘要翻译：插入用于从内部切割管状的管状的切割工具。切割工具包括电动机，切割头，电动机和切割头之间的永久锚固件，电子部分和可位于电动机和电子部分之间或切割工具的上端上的模块化锚固子。模块化锚固子提供了锚固元件定位的灵活性，使得根据应用，模块化锚固子可以被定位成使得其在使用期间提供其用于稳定切割工具的最大锚定力。

3. 发明授权

US08122954B2 Downhole depth computation methods and related system 有权
标题翻译：井下深度计算方法及相关系统
公开(公告)号：US08122954B2
公开(公告)日：2012-02-28
申请号：US11858077
申请日：2007-09-19
申请人： Robert Estes , Jerry Cerkovnik , Gary J. Cresswell , William J. Befeld
发明人： Robert Estes , Jerry Cerkovnik , Gary J. Cresswell , William J. Befeld
IPC分类号： E21B47/09
CPC分类号： E21B47/04
摘要： A method for determining depth in a wellbore uses inertial navigation in conjunction with a database having one or more measured parameters correlated with depth. The measured parameter may be the lengths of stands forming a drill string, prior survey data relating to a naturally occurring feature such as formation lithology, or data relating to a human made feature such as collars in a casing string. The downhole processor may use accelerometer measurements to calculate a measured depth of a BHA and access the database to retrieve a predicted depth that corresponds with one or more sensor measurements (e.g., motion indicating the addition of a stand to a drill string). Thereafter, if the downhole processor determines that the predicted depth is in agreement with the calculated depth, the processor stores the predicted depth and/or associates the predicted depth with directional surveys taken along the wellbore.
摘要翻译：用于确定井眼深度的方法使用惯性导航与具有与深度相关的一个或多个测量参数的数据库结合使用。测量参数可以是形成钻柱的立场的长度，与诸如地层岩性的天然存在特征相关的先前测量数据，或与人造特征（例如套管柱中的套环）有关的数据。井下处理器可以使用加速度计测量来计算BHA的测量深度并访问数据库以检索与一个或多个传感器测量值相对应的预测深度（例如，指示向钻柱添加支架的运动）。此后，如果井下处理器确定预测深度与计算出的深度一致，则处理器存储预测深度和/或将预测深度与沿着井眼进行的定向勘测相关联。

4. 发明申请

US20120318509A1 MODULAR ANCHORING SUB FOR USE WITH A CUTTING TOOL 有权
标题翻译：用切割工具使用的模块化锚杆
公开(公告)号：US20120318509A1
公开(公告)日：2012-12-20
申请号：US13161667
申请日：2011-06-16
申请人： Karsten Fuhst , Sven Krueger , William J. Befeld
发明人： Karsten Fuhst , Sven Krueger , William J. Befeld
IPC分类号： E21B29/00 , E21B29/06
CPC分类号： E21B29/005 , E21B23/01
摘要： A cutting tool that inserts into a tubular for cutting the tubular from within. The cutting tool includes a motor, a cutting head, permanent anchor between the motor and cutting head, an electronics portion, and a modular anchoring sub that can be between the motor and electronics portion or on the upper end of the cutting tool. The modular anchoring sub provides flexibility in where anchoring elements are positioned so that depending on the application, the modular anchoring sub can be positioned so that it provides its maximum anchoring force for stabilizing the cutting tool during use.
摘要翻译：插入用于从内部切割管状的管状的切割工具。切割工具包括电动机，切割头，电动机和切割头之间的永久锚固件，电子部分和可位于电动机和电子部分之间或切割工具的上端上的模块化锚固子。模块化锚固子提供了锚固元件定位的灵活性，使得根据应用，模块化锚固子可以被定位成使得其在使用期间提供其用于稳定切割工具的最大锚定力。

5. 发明申请

US20120226443A1 AUTONOMOUS DOWNHOLE CONTROL METHODS AND DEVICES 有权
标题翻译：自动井下控制方法和装置
公开(公告)号：US20120226443A1
公开(公告)日：2012-09-06
申请号：US13406776
申请日：2012-02-28
申请人： Gary J. Cresswell , William J. Befeld , Robert Estes
发明人： Gary J. Cresswell , William J. Befeld , Robert Estes
IPC分类号： G06F19/00 , G01V3/08 , G01V9/00
CPC分类号： E21B47/04
摘要： Autonomous control of a wellbore tool is provided by programming a memory module of a processor with a database having data relating to a selected parameter of interest; conveying a sensor and the processor along the wellbore; and activating the wellbore tool if the processor determines that a measurement provided by the sensor correlates with the database data. The processor may correlate the sensor measurements with a predetermined pattern associated with the data, a preset value, and/or a preset range of values. Well tool activation may occur when the processor finds: a substantial match between a predetermined pattern and at least one measured value; a present value and at least one measured value, and/or a preset range of values and at least one measured range of values. Also, activating the well tool may occur only if a measurement from a second sensor meets a preset criteria.
摘要翻译：通过使用具有与所选择的所选参数有关的数据的数据库来编程处理器的存储器模块来提供井筒工具的自主控制; 沿井筒输送传感器和处理器; 如果处理器确定由传感器提供的测量与数据库数据相关，则激活井筒工具。处理器可以将传感器测量与与数据相关联的预定模式，预设值和/或预设值范围相关联。当处理器发现：预定模式与至少一个测量值之间的实质匹配时，可能发生井具激活; 值和至少一个测量值，和/或值的预设范围和至少一个测量值的范围。此外，仅当来自第二传感器的测量满足预设标准时，才可能启动井工具。

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