利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

87 条记录 (耗时 0.016 秒)

    METHOD AND APPARATUS FOR COMMUNICATING INCREMENTAL DEPTH AND OTHER USEFUL DATA TO DOWNHOLE TOOL
    1.
    发明公开
    METHOD AND APPARATUS FOR COMMUNICATING INCREMENTAL DEPTH AND OTHER USEFUL DATA TO DOWNHOLE TOOL 审中-公开

    公开(公告)号：EP3726005A1

    公开(公告)日：2020-10-21

    申请号：EP20163513.3

    申请日：2015-02-12

    申请人： Weatherford Technology Holdings, LLC

    发明人： BARTEL, Roger P ,  MAULDIN, Charles Lee

    IPC分类号： E21B47/04 ,  E21B45/00

    摘要： A method and assembly for drilling a borehole (10) are disclosed with a drilling system (20) comprising:
    the downhole assembly (100),
    surface equipment (30) set with at least one predetermined depth interval of a drill string (40) of the drilling system (20) correlated to at least one predetermined rate of rotation to be imparted to the downhole assembly (100),
    the surface equipment (30) configured to:
    measure (304) the depth interval of the drill string (40);
    determine (306) from the measured depth interval of the drill string (40) whether a predetermined depth interval has been reached; and
    change (308) the rate of rotation imparted to the downhole assembly (100) to one of said predetermined rates of rotation based on the measured depth interval.

    METHOD AND SYSTEM FOR PREDICTING DRILLING EVENTS
    4.
    发明公开
    METHOD AND SYSTEM FOR PREDICTING DRILLING EVENTS 审中-公开
    方法和预报系统BOHREREIGNISSEN

    公开(公告)号：EP2932031A1

    公开(公告)日：2015-10-21

    申请号：EP13876731.4

    申请日：2013-02-27

    申请人： Landmark Graphics Corporation

    发明人： SAMUEL, Robello ,  GERMAIN, Olivier, R.

    IPC分类号： E21B44/00 ,  E21B45/00 ,  E21B49/00

    CPC分类号： E21B49/003 ,  E21B7/04 ,  E21B47/022 ,  G05B13/048

    摘要： Calculating wellbore energy. At least some of the illustrative embodiments are methods including: calculating an expected wellbore energy for a planned wellpath, the calculating by a computer system; calculating an expected tortuosity of the planned wellpath; calculating a first value indicative of probability of occurrence of a drilling event for drilling along the planned wellpath, the first value based on the expected wellbore energy and the expected tortuosity; and then drilling a wellbore along at least a first portion of the planned wellpath if the first value indicates the probability of the drilling event is less than a predetermined threshold.

    SYSTEM AND METHOD FOR IMPROVED CUTTINGS MEASUREMENTS
    6.
    发明公开
    SYSTEM AND METHOD FOR IMPROVED CUTTINGS MEASUREMENTS 审中-公开
    系统和方法改进SCHNEIDUNGSMESSUNGEN

    公开(公告)号：EP2802738A1

    公开(公告)日：2014-11-19

    申请号：EP12865458.9

    申请日：2012-01-09

    申请人： Halliburton Energy Services, Inc.

    发明人： SMITH, Adrian, E.

    IPC分类号： E21B44/02 ,  E21B47/01 ,  E21B45/00

    CPC分类号： E21B44/04 ,  B07B13/16 ,  E21B21/066 ,  E21B47/01 ,  E21B49/005 ,  G01N3/58

    摘要： A method and system for improving cuttings measurements in drilling operations includes rotating a helical screw in a trough at a first speed, measuring a first weight of a cuttings mixture within the trough, measuring a first torque required to maintain rotation of the helical screw at the first speed through the cuttings mixture, and calculating a difference between the first torque and a second torque required to maintain rotation of the helical screw at the first speed through a second weight of natural cuttings equal to the first weight.

    Apparatus and method for downhole dynamics measurements
    9.
    发明公开
    Apparatus and method for downhole dynamics measurements 审中-公开
    Vorrichtung und VerfahrenfürUntertagedynamikmessungen

    公开(公告)号：EP1867829A1

    公开(公告)日：2007-12-19

    申请号：EP07252433.3

    申请日：2007-06-14

    申请人： PathFindar Enargy Services, Inc

    发明人： Sugiura, Junichi

    IPC分类号： E21B7/06 ,  E21B45/00 ,  G01P3/00 ,  E21B47/024

    CPC分类号： E21B47/00 ,  E21B7/062 ,  E21B44/00 ,  E21B45/00 ,  E21B47/024 ,  E21B47/12

    摘要： Aspects of this invention include a rotary steerable storing tool having a sensor arrangement for measuring downhole dynamic conditions. Rotary steerable tools in accordance with this invention include a rotation rate measurement device disposed to measure a difference in rotation rates between a drive shaft and an outer, substantially non-rotating housing. A coutroller is configured to determine a stick/slip parameter from the rotation rate measurements. Exemplary embodiments may also optionally include u tri-axial accelerometer arrangement deployed in the housing for measuring lateral vibrations and bit bounce. Downhole measurement of stick/slip and other vibration components during drilling advantageously enables corrective measures to be implemented when dangerous dynamic conditions are encountered.

    摘要翻译： 本发明的方面包括具有用于测量井下动态条件的传感器装置的旋转可转向存储工具。 根据本发明的旋转转向工具包括旋转速率测量装置，其设置成测量驱动轴和外部基本上不旋转的壳体之间的旋转速率差。 一个控制器配置成根据旋转速率测量来确定一个棒/滑动参数。 示例性实施例还可以可选地包括布置在壳体中的u轴向加速度计布置，用于测量横向振动和钻头反弹。 在钻井期间，井下测量棒/滑动和其他振动部件有利于在遇到危险的动态条件时实施纠正措施。