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21. 发明申请

US20220120929A1 BURIED WELLBORE LOCATION FROM SURFACE MAGNETIC MEASUREMENTS 有权
公开(公告)号：US20220120929A1
公开(公告)日：2022-04-21
申请号：US17562631
申请日：2021-12-27
申请人： Scientific Drilling International, Inc.
发明人： Clinton MOSS , Douglas RIDGWAY
IPC分类号： G01V3/08 , G01V3/38 , E21B47/092
摘要： A method for locating a buried casing stub may comprise a) identifying a target region, b) providing at each of a plurality of survey points in the target region a casing stub locator that includes a vector magnetometer, c) measuring the magnetic field at each of the survey points using the vector magnetometer so as to generate a plurality of magnetic field measurements, d) using the magnetic field measurements to generate a model of the magnetic field of the target region, e) fitting the model generated in step d) to a selected model of a magnetic anomaly created by the casing stub so as to generate model fit information (MFI), and f) locating the casing stub using the MFI. At each survey point, an expected Earth magnetic field can be subtracted from the measured magnetic field. A total station can measure the position and/or the azimuth of the package.

22. 发明授权

US11142962B2 Method and apparatus for damping/absorbing rotational vibrations/oscillations 有权
公开(公告)号：US11142962B2
公开(公告)日：2021-10-12
申请号：US17128032
申请日：2020-12-19
申请人： Scientific Drilling International, Inc.
发明人： Mario Simanowski , Carsten Freyer , Marco Volgmann , Josh Wilson
IPC分类号： F16F7/108 , E21B17/07 , F16F7/112
摘要： A vibration damping device for use with a downhole tool having a tool axis may comprise a device housing mechanically coupled to the downhole tool, wherein the device housing defines a receptacle having a volume and an inner surface; an inertia element movably supported in the receptacle and having a volume, a mass, and a non-zero moment of inertia about the tool axis; wherein the inertia element volume is greater than the receptacle volume and an interstitial volume is defined between the inertia element and the receptacle, and wherein the interstitial volume is occupied by a fluid or an elastomer. The device may include a longitudinal bearing and/or a radial bearing between the inertia element and the receptacle. The device may also include a pressure compensation device in fluid communication with the receptacle and positioned within or an integral part of the device housing.

23. 发明授权

US11086043B2 Passive magnetic ranging 有权
公开(公告)号：US11086043B2
公开(公告)日：2021-08-10
申请号：US16526164
申请日：2019-07-30
申请人： Scientific Drilling International, Inc.
发明人： Clinton Moss , Douglas Ridgway , Troy Martin
IPC分类号： G01V3/26
摘要： A method comprises a) positioning a passive magnetic ranging (PMR) tool in a drilling well that is near a target well that includes a ferromagnetic casing, b) measuring with each of the magnetometers a local magnetic anomaly created by the ferromagnetic casing of the target well so as to generate a plurality of magnetometer readings corresponding to the positions of the magnetometers; c) receiving the plurality of magnetometer readings with the controller; and d) using the received measurements to calculate ranging information, the ranging information including the range and direction from the PMR tool to the target well. The PMR tool may include a ranging collar, a longitudinal array of magnetometers extending along the length of the ranging collar, and a controller, the controller operatively connected to the plurality of magnetometers. The PMR tool may further comprise a radial array of magnetometers positioned radially about the ranging collar.

24. 发明申请

US20210189806A1 METHOD AND APPARATUS FOR DAMPING/ABSORBING ROTATIONAL VIBRATIONS/OSCILLATIONS 有权
公开(公告)号：US20210189806A1
公开(公告)日：2021-06-24
申请号：US17128032
申请日：2020-12-19
申请人： Scientific Drilling International, Inc.
发明人： Mario SIMANOWSKI , Carsten FREYER , Marco VOLGMANN , Josh WILSON
IPC分类号： E21B17/07 , F16F7/112 , F16F7/108
摘要： A vibration damping device for use with a downhole tool having a tool axis may comprise a device housing mechanically coupled to the downhole tool, wherein the device housing defines a receptacle having a volume and an inner surface; an inertia element movably supported in the receptacle and having a volume, a mass, and a non-zero moment of inertia about the tool axis; wherein the inertia element volume is greater than the receptacle volume and an interstitial volume is defined between the inertia element and the receptacle, and wherein the interstitial volume is occupied by a fluid or an elastomer. The device may include a longitudinal bearing and/or a radial bearing between the inertia element and the receptacle. The device may also include a pressure compensation device in fluid communication with the receptacle and positioned within or an integral part of the device housing.

25. 发明授权

US10253820B2 Full contact joint assembly 有权
公开(公告)号：US10253820B2
公开(公告)日：2019-04-09
申请号：US15075675
申请日：2016-03-21
申请人： Scientific Drilling International, Inc.
发明人： Mark Chustz , Jon Meier
IPC分类号： F16D3/26 , F16D3/205 , F16D3/18 , E21B4/00 , E21B7/06
摘要： A joint for a BHA includes an inner driven rod, an outer drive coupling, and a thrust plate. The inner driven rod includes at least one lobe extending radially therefrom. The outer drive coupling includes a keyway formed therein corresponding to and adapted to receive each lobe. A thrust plate is positioned between at least one side of each lobe and the corresponding keyway. The thrust plate may allow for the reduction of point or line stress loading on the lobe and keyway.

26. 发明授权

US09938824B2 Downhole MWD signal enhancement, tracking, and decoding 有权
公开(公告)号：US09938824B2
公开(公告)日：2018-04-10
申请号：US15622969
申请日：2017-06-14
申请人： Scientific Drilling International, Inc.
发明人： Matthew A. White , Tim Whitacre , Brett Van Steenwyk , Mohamed Youssef
IPC分类号： E21B47/18
CPC分类号： E21B47/182
摘要： A method for transmitting data from a MWD system at the BHA of a drill string may include transmitting the data in a MWD signal from the MWD system. The MWD signal may be modulated at a position closer to the surface onto a mud pulse modulated signal. The mud pulse modulated signal may be generated by a downhole friction reducing device. The downhole friction reducing device may include a mud motor. The mud motor may create pressure pulses based on its speed of rotation. The downhole friction reducing device may include a modulating valve. The modulating valve may be electromechanically or mechanically operated. The modulated signal may be detected at the surface by a receiver using one or more pressure or flow sensors. The receiver may use one or more harmonics of the modulated signal to receive the data.

27. 发明授权

US09726008B2 Sub-surface formation boundary detection using an electric-field borehole telemetry apparatus 有权
公开(公告)号：US09726008B2
公开(公告)日：2017-08-08
申请号：US14544278
申请日：2014-12-19
申请人： Matthew A. White , Asong E. Suh , Stephan Graf
发明人： Matthew A. White , Asong E. Suh , Stephan Graf
IPC分类号： E21B7/04 , E21B7/06 , E21B7/10 , E21B47/02 , E21B47/022 , E21B47/026 , E21B47/12
CPC分类号： E21B47/121 , E21B7/046 , E21B7/068 , E21B7/10 , E21B47/02 , E21B47/02216 , E21B47/02224 , E21B47/026 , E21B47/12 , E21B47/122
摘要： The method of maintaining drill bit advancement in an underground formation that contains shale, including providing an electrical signal from an insulated gap location in a drill string substantially directly behind the bit in the formation, detecting substantial change in a signal as the bit advances, and changing the direction of drilling of the bit as a function of a signal change, to thereby maintain the direction of bit advancement in the formation.A method is disclosed for detecting the existence and direction of adjacent bed boundaries. A short hop transmitter assembly generates a signal that is detected by an associated receiver assembly. The received signal(s) are tied to the azimuthal orientation of the transmitter or receiver and processed to yield the direction and/or the distance of the bed boundary. This information is transmitted to the surface via surface telemetry for real-time control of the drilling assembly to stay within, or to enter, a pay zone.

28. 发明授权

US09702246B2 Downhole MWD signal enhancement, tracking, and decoding 有权
公开(公告)号：US09702246B2
公开(公告)日：2017-07-11
申请号：US14723414
申请日：2015-05-27
申请人： Scientific Drilling International, Inc.
发明人： Matthew A. White , Tim Whitacre , Brett Van Steenwyk , Mohamed Youssef
IPC分类号： E21B47/12 , E21B47/18
CPC分类号： E21B47/182
摘要： A method for transmitting data from a MWD system at the BHA of a drill string may include transmitting the data in a MWD signal from the MWD system. The MWD signal may be modulated at a position closer to the surface onto a mud pulse modulated signal. The mud pulse modulated signal may be generated by a downhole friction reducing device. The downhole friction reducing device may include a mud motor. The mud motor may create pressure pulses based on its speed of rotation. The downhole friction reducing device may include a modulating valve. The modulating valve may be electromechanically or mechanically operated. The modulated signal may be detected at the surface by a receiver using one or more pressure or flow sensors. The receiver may use one or more harmonics of the modulated signal to receive the data.

29. 发明授权

US09567849B2 Telemetry antenna arrangement 有权
标题翻译：遥测天线布置
公开(公告)号：US09567849B2
公开(公告)日：2017-02-14
申请号：US14314597
申请日：2014-06-25
申请人： Scientific Drilling International, Inc.
发明人： Stephan Graf , Matthew A. White , William Denzel , Nathan Paszek
IPC分类号： G01V3/00 , E21B47/12
CPC分类号： E21B47/122
摘要： A sonde based antenna is used for communication within a wellbore. The sonde based antenna may include a toroidal antenna positioned about a conducting element. The sonde may be positionable within a gap sub. The sonde may be electrically connected to the first and second tubulars of the gap sub such that the tubulars are electrically coupled by the conducting element and are otherwise electrically insulated. The sonde may include a first and second structural member, the first and second structural members being electrically insulated except by the conducting element. The first and/or second structural element may extend through and/or around the toroidal antenna to, for example, add structural rigidity to the sonde.
摘要翻译：基于探空仪的天线用于井筒内的通信。基于探空仪的天线可以包括围绕导电元件定位的环形天线。探头可能位于一个间隙中。探头可以电连接到间隙子的第一和第二管，使得管状物通过导电元件电耦合，而另外电绝缘。探头可以包括第一和第二结构构件，第一和第二结构构件除了导电元件之外是电绝缘的。第一和/或第二结构元件可延伸通过环形天线和/或围绕环形天线，以例如增加到探头的结构刚性。

30. 发明授权

US09366085B2 Apparatus for directional drilling 有权
标题翻译：定向钻孔设备
公开(公告)号：US09366085B2
公开(公告)日：2016-06-14
申请号：US13807200
申请日：2010-06-29
申请人： Massoud Panahi
发明人： Massoud Panahi
IPC分类号： E21B7/04 , E21B7/06 , E21B17/20
CPC分类号： E21B7/04 , E21B7/06 , E21B7/062 , E21B7/067 , E21B17/20
摘要： A downhole drilling apparatus includes an assembly having a longitudinal axis, wherein an output shaft of the assembly extends axially through a housing. A bearing assembly has first and second races, wherein a first set of bearing elements are disposed at a first angle relative to a top surface of the first race and a second set of bearing elements are disposed at a second angle relative to a top surface of the second race. The output shaft extends from an outlet of the housing at the angle defined by the bore.
摘要翻译：井下钻井设备包括具有纵向轴线的组件，其中组件的输出轴轴向延伸穿过壳体。轴承组件具有第一和第二种族，其中第一组轴承元件相对于第一座圈的顶表面以第一角度设置，并且第二组轴承元件相对于第一座圈的顶面设置成第二角度第二场比赛。输出轴以由孔限定的角度从壳体的出口延伸。

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