公开(公告)号：EP3154408A1

公开(公告)日：2017-04-19

申请号：EP15806639.9

申请日：2015-06-11

申请人： Cellview Imaging Inc.

发明人： HATHAWAY, Mark ,  WEITZ, Rishard

IPC分类号： A61B3/10 ,  A61B3/12

CPC分类号： A61B3/102 ,  A61B3/1225 ,  G01B9/02063 ,  G01B9/02091 ,  G02B7/36

摘要： In an OCT system, the autocorrelation signal depends only on the strength of the signal in the object arm scattered back from a patient's retina and is a result of different reflections from different layers of the retina interfering with each other. The strength of the autocorrelation signal depends on how well focused the system is. Normally the autocorrelation signal is treated as noise. However by removing the reference path signal, the autocorrelation signal is easily measured and analyzed. The optimal focus can the then be found by adjusting the focus value until the autocorrelation signal is maximized.

摘要翻译： 在OCT系统中，自相关信号仅取决于从患者视网膜分散回放的对象臂中的信号的强度，并且是来自视网膜的不同层的不同反射相互干扰的结果。 自相关信号的强度取决于系统的重点。 通常将自相关信号视为噪声。 然而，通过去除参考路径信号，可以容易地测量和分析自相关信号。 然后可以通过调整焦点值直到自相关信号最大化来找到最佳焦点。

公开(公告)号：EP3153655A2

公开(公告)日：2017-04-12

申请号：EP16196900.1

申请日：2011-03-15

申请人： Weatherford Technology Holdings, LLC

发明人： BAILEY, Thomas ,  BRUNNERT, David J. ,  BANSAL, Ram K. ,  ANTOINE, Andrew ,  SEGURA, Richard

IPC分类号： E21B29/00 ,  E21B29/10 ,  E21B43/11

CPC分类号： E21B29/005 ,  E21B29/002

摘要： A method for milling a tubular cemented in a wellbore includes deploying a bottomhole assembly (BHA) into the wellbore through the tubular, the BHA comprising a window mill; and extending arms of the window mill and radially cutting through the tubular, thereby forming a window through the tubular, wherein a body portion of each window mill arm engages and stabilizes from an inner surface of the tubular after a blade portion of each window mill arm cuts through the tubular.

公开(公告)号：EP2415960B1

公开(公告)日：2017-04-12

申请号：EP11187371.7

申请日：2008-07-25

申请人： Weatherford Technology Holdings, LLC

发明人： Iblings, David ,  Bailey, Thomas F. ,  Bansal, Ram Kumar ,  Steiner, Adrian ,  Lynch, Michael ,  Harrall, Simon, John

IPC分类号： E21B19/16 ,  E21B21/10

CPC分类号： E21B21/002 ,  E21B19/16 ,  E21B21/10 ,  E21B21/106 ,  E21B21/12 ,  E21B2034/005

公开(公告)号：EP3146618A1

公开(公告)日：2017-03-29

申请号：EP15725109.1

申请日：2015-05-22

申请人： Technelec Ltd

发明人： POLLOCK, Charles ,  POLLOCK, Helen

IPC分类号： H02K1/24

CPC分类号： H02K1/246 ,  H02K1/146 ,  H02K1/2766 ,  H02K21/16 ,  H02K2213/03

摘要： There is described a synchronous reluctance machine having a plurality of poles and comprising a stator with a plurality of spaced slots and a rotor. The rotor has one direct axis and one quadrature axis for each pole and comprises a plurality of flux barriers, each extending to a circumference thereof at least one barrier point. Successive angular separations between barrier points around the circumference of the rotor increase or decrease when moving around half a pole pitch from an initial axis to an adjacent finishing axis, the initial axis being one of a direct axis or a quadrature axis and the finishing axis being the other of a direct axis and a quadrature axis. The increase or decrease in size may be governed by a systematic progressive series.

摘要翻译： 描述了具有多个极并包括具有多个间隔开的狭槽的定子和转子的同步磁阻电机。 转子具有用于每个极的一个直接轴线112和一个正交轴线114，并且包括多个磁通壁垒130.132，每个磁通壁垒在至少一个阻挡点处延伸到其圆周。 围绕转子圆周的阻挡点之间的连续角度分离在从初始轴线到相邻精加工轴线的半极点间距移动时增加，初始轴线是直轴或正交轴线之一，并且精加工轴线是另一个 的直轴和正交轴。 尺寸的增加可以由系统渐进的系列eG几何或算术来控制。 注意，在图5的示例中，最接近每个正交轴的磁通屏障132已被完全切除，但是这并不改变几何间隔公式，其仍然限定阻挡层应该与转子圆周相交的位置。 可以通过位于屏障内的磁体提供永磁辅助。 公开了与屏障布置有关的各种方程式和表格。

公开(公告)号：EP3103957A3

公开(公告)日：2017-03-22

申请号：EP16168545.8

申请日：2014-03-05

申请人： Weatherford Technology Holdings, LLC

发明人： SULLIVAN, Daniel Mark ,  PAGETT, John Mackinley

IPC分类号： E21B7/06 ,  E21B7/10 ,  E21B44/00 ,  E21B17/10

CPC分类号： G01D5/145 ,  E21B7/062 ,  E21B7/10 ,  E21B17/1014 ,  E21B44/00 ,  E21B45/00 ,  E21B47/024 ,  E21B47/12 ,  E21B47/18

摘要： A rotary steerable drilling system that is operable to drill vertical wellbores and automatically maintain a vertical wellbore drilling path. The system includes a control module for operating solenoid valves that control an amount of fluid pressure applied to bias pad piston/cylinders. The control module is operable to determine when the system is deviating from vertical, in what direction the system is deviating, and where the bias pads are in relation to the direction of deviation. Based on these determinations, the control module actuates the requisite bias pads by controlling the amount of fluid pressure applied to the bias pad piston/cylinders to direct the system back to the vertical drilling path.

摘要翻译： 旋转导向钻井系统（100），其可操作以钻取垂直井筒并自动维持竖井井眼钻孔路径。 该系统包括用于操作电磁阀的控制模块（40），其控制施加到偏置垫活塞/气缸的流体压力的量。 控制模块可操作以确定系统何时偏离垂直方向，系统在哪个方向上偏离，以及偏置焊盘（54）相对于偏离方向偏离的位置。 基于这些确定，控制模块通过控制施加到偏置垫活塞/气缸的流体压力的量来引导系统返回垂直钻孔路径来驱动所需的偏置焊盘。

公开(公告)号：EP3138992A2

公开(公告)日：2017-03-08

申请号：EP16179760.0

申请日：2010-02-25

申请人： Weatherford Technology Holdings, LLC

发明人： HEIDECKE, Karsten ,  HAYES, Michael ,  TILTON, Frederick T. ,  BOUTWELL, JR, Doyle Frederic ,  BADRAK, Robert ,  RIALS, Joseph Ross ,  HAVENS, David J.

IPC分类号： E21B19/16

CPC分类号： E21B19/16 ,  E21B19/06 ,  E21B19/084 ,  E21B19/10 ,  E21B31/20

摘要： The present invention generally relates to a pipe handling system for use with a tubular joining system (such as a welding or forging assembly) located on a drilling rig at a wellbore. In one aspect, a method of forming a string of pipe using a joining assembly at a wellbore is provided. The joining assembly includes an internal joining tool and an external joining tool. The method includes the step of picking up the pipe joint using an elevator. The method further includes the step of positioning a lower end of the pipe joint adjacent an end of a string of pipe disposed in the external joining tool. The method also includes the step of moving the internal joining tool from a first position to a second position relative to the elevator, wherein the second position is between the pipe joint and the string of pipe. The method further includes the step of forming a connection between the pipe joint and the string of pipe. The method further includes the step of gripping the pipe joint with a gripping tool and releasing the elevator from the pipe joint. Additionally, the method includes the step of lowering the pipe joint and the string of pipe into the wellbore. In another aspect, a method of forming a string of pipe using a joining assembly on a rig is provided. In a further aspect, a pipe handling system for locating a pipe joint in a joining assembly that includes an internal joining tool and an external joining tool is provided.

公开(公告)号：EP2636840B1

公开(公告)日：2017-02-01

申请号：EP13157019.4

申请日：2013-02-27

申请人： Weatherford Technology Holdings, LLC

发明人： Smith, Roddie R

IPC分类号： E21B33/047 ,  E21B43/12 ,  E21B43/25 ,  E21B34/10 ,  E21B44/06 ,  E21B34/06 ,  E21B43/16

CPC分类号： E21B43/16 ,  E21B33/047 ,  E21B34/06 ,  E21B34/10 ,  E21B43/12 ,  E21B43/25

公开(公告)号：EP1897190B1

公开(公告)日：2017-01-25

申请号：EP06755802.3

申请日：2006-06-28

申请人： II-VI Laser Enterprise GmbH

发明人： HARDER, Christoph ,  JAKUBOWICZ, Abram ,  MATUSCHEK, Nicolai ,  TROGER, Joerg ,  SCHWARZ, Michael

IPC分类号： H01S5/20 ,  H01S5/22 ,  H01S5/042 ,  H01S5/02

CPC分类号： H01S5/0425 ,  H01L2224/48463 ,  H01S5/02276 ,  H01S5/1039 ,  H01S5/16 ,  H01S5/2036 ,  H01S5/22

公开(公告)号：EP3116399A1

公开(公告)日：2017-01-18

申请号：EP15760821.7

申请日：2015-03-16

申请人： SG MediTech Pte Ltd

发明人： WIGHT, Ron ,  TAN, Theodore ,  TAN, Gabriel ,  LEE, Chun Siong

IPC分类号： A61B5/15 ,  A61B17/34 ,  A61M25/06

CPC分类号： A61B5/150038 ,  A61B5/15 ,  A61B5/150221 ,  A61B5/150259 ,  A61B5/150389 ,  A61B5/150656 ,  A61B5/150885 ,  A61B17/0482 ,  A61B17/122 ,  A61B2017/00407

摘要： A cannulation assembly comprising: a housing; a needle selectively extendable from a proximal end of said housing; a tube arranged to pass through the housing and through a bore of said needle such that an insertion end of said tube is arranged to selectively project from an insertion end of said needle; a slide mounted to the needle in sliding engagement with the housing and arranged to move the needle from a retracted position to an insertion position such that the needle projects from said housing; wherein said slide is further arranged to move the needle from the insertion position to a locked position such that the needle is fully retracted.

摘要翻译： 一种插管组件，包括：壳体; 从所述壳体的近端选择性地延伸的针; 布置成穿过所述壳体并穿过所述针的孔的管，使得所述管的插入端布置成从所述针的插入端选择性地突出; 安装到所述针的滑块，其与所述壳体滑动接合并且布置成使所述针从缩回位置移动到插入位置，使得所述针从所述壳体突出; 其中所述滑块进一步布置成将针从插入位置移动到锁定位置，使得针完全缩回。

公开(公告)号：EP3100357A1

公开(公告)日：2016-12-07

申请号：EP15744089.2

申请日：2015-01-14

申请人： Microsemi Semiconductor ULC

发明人： MILIJEVIC, Slobodan

IPC分类号： H03L7/07 ,  H03L7/099 ,  H04L7/00

CPC分类号： H03L7/087 ,  H03L7/07 ,  H03L7/0805 ,  H03L7/0807 ,  H03L7/0991 ,  H03L7/22

摘要： A double phase-locked has a first phase-locked loop including a first narrowband loop filter configured to reduce phase noise in a first input clock, and a second phase-locked loop including a second loop filter configured to receive a second input clock from a stable clock source. The second clock has a frequency close to said first clock. The first loop has a bandwidth at least an order of magnitude less than the second loop. A coupler couples the first second phase-locked loops to provide a common output. The double phase locked loop can be used, for example, to provide time-of-day information in wireless networks or as a fine filter for cleaning phase noise from clock signals recovered over telecom/datacom networks