Highly integrated non-inductive LED driver
    3.
    发明授权
    Highly integrated non-inductive LED driver 有权
    高度集成的无感LED驱动器

    公开(公告)号:US08698407B1

    公开(公告)日:2014-04-15

    申请号:US13295868

    申请日:2011-11-14

    IPC分类号: H05B37/00 H05B39/00 H05B41/00

    CPC分类号: H05B33/0812 Y02B20/345

    摘要: An inductorless LED driver powers a string of low current LEDs. A phase controlled triac dimmer, serially connected to a full-wave rectifier circuit, performs as an LED current and triac holding current control element. The output of the full-wave rectifier circuit is divided into two circuit paths; the first path provides power to drive a string of serially-connected low-current LEDs, and the second path connects to a dynamic load, which supplies a holding current that flows through the triac dimmer. There are two feedback control systems; the first regulates the luminance of the LEDs; the second regulates the triac holding current to eliminate lamp flicker.

    摘要翻译: 无电感LED驱动器为一串低电流LED供电。 串联连接到全波整流电路的相控三极双向可控硅调光器作为LED电流和三端双向可控硅开关元件保持电流控制元件。 全波整流电路的输出分为两路电路; 第一路径提供驱动一串串联的低电流LED的电力,并且第二路径连接到动态负载,动态负载提供流过三端双向可控硅调光器的保持电流。 有两个反馈控制系统; 首先调节LED的亮度; 第二个调节三端双向可控硅开关电压以消除灯闪烁。

    Offshore casing drilling method
    5.
    发明授权
    Offshore casing drilling method 有权
    海上套管钻井方法

    公开(公告)号:US08186457B2

    公开(公告)日:2012-05-29

    申请号:US12561416

    申请日:2009-09-17

    申请人: John Boyle

    发明人: John Boyle

    IPC分类号: E21B7/20

    CPC分类号: E21B7/20

    摘要: A method of casing drilling a portion of an offshore well includes running a casing string with a drill bit assembly attached to it into a previously drilled portion of the well. Before the drill bit assembly reaches bottom, the operator attaches drill pipe to the casing string and lowers the casing string on the drill pipe. When the drill bit is at bottom, an upper end of the casing string should be below the blowout preventer. The operator then performs casing drilling by rotating the drill pipe. When at a desired depth for the casing string, the operator pulls the drill pipe from the well and lifts the casing string up until its upper end is at the rig floor. The operator then runs the casing string back into the well but using casing in this instance. The operator then cements the casing string.

    摘要翻译: 一种套管钻井海上井的一部分的方法包括:将具有与其连接的钻头组件的套管柱运行到井的先前钻孔部分中。 在钻头组件到达底部之前,操作人员将钻杆连接到套管柱上,并降低钻杆上的套管柱。 当钻头位于底部时,套管柱的上端应位于防喷器下方。 然后操作员通过旋转钻杆进行套管钻井。 当处于套管柱所需的深度时,操作者将钻杆从井中拉出并将套管柱提起直到其上端在钻台上。 然后操作员将套管柱运回井中,但在这种情况下使用套管。 然后,操作人员将套管柱固定。

    Vessel for well intervention
    7.
    发明授权
    Vessel for well intervention 失效
    船舶进行良好的干预

    公开(公告)号:US07650944B1

    公开(公告)日:2010-01-26

    申请号:US10618093

    申请日:2003-07-11

    申请人: John Boyle

    发明人: John Boyle

    IPC分类号: E21B33/00 F16L55/18 B23B41/08

    摘要: In one aspect, a method and apparatus for intervening in an offshore pipeline while diverting fluid flow to a storage site is provided, so that production through the offshore pipeline may continue while conducting a pipeline intervention operation. An offshore vessel may be used to divert and store fluid flow while intervening in the pipeline. In another aspect, a method and apparatus for drilling a subsea wellbore with an offshore vessel is provided. The method and apparatus involve drilling the wellbore and casing the wellbore with continuous casing lowered from the offshore vessel.

    摘要翻译: 一方面,提供一种用于在将流体流转向存储位置的情况下插入海上管道的方法和装置,使得通过海上管道的生产可以在进行管道介入操作的同时继续进行。 海上船只可用于转移和储存流体,同时插入管道。 另一方面,提供了一种用海上船只钻探海底井筒的方法和装置。 所述方法和装置包括钻井井并将井眼与从海上船舶降低的连续壳体套管。

    Pump in reverse outliner drilling system
    9.
    发明授权
    Pump in reverse outliner drilling system 有权
    反向大气泵钻井系统

    公开(公告)号:US08439113B2

    公开(公告)日:2013-05-14

    申请号:US12776024

    申请日:2010-05-07

    申请人: John Boyle

    发明人: John Boyle

    IPC分类号: E21B33/14

    摘要: A liner string for a well has a liner hanger assembly at an upper portion of the liner string. A profile sub is located at a bottom portion of the liner string. A bottom hole assembly is latched to the profile sub. The operator lowers the liner string into the well with a drill pipe string and rotates the drill pipe string to rotate the drill bit to deepen the well. At a selected depth, the operator releases the bottom hole assembly from the profile sub and reverse circulates drilling fluid from a liner annulus surrounding the liner string, pumping the bottom hole assembly up the liner string. When the bottom hole assembly reaches the lower end of the drill pipe string, it latches to a catcher tool located at the lower end of the drill pipe string. The operator moves the liner hanger assembly into setting engagement with the casing string, releases the drill pipe string from the liner string, and retrieves the drill pipe string along with the bottom hole assembly.

    摘要翻译: 用于井的衬管串在衬套柱的上部具有衬垫悬挂器组件。 轮廓子部分位于衬垫弦的底部。 井底组件被锁定到轮廓子。 操作员将钻柱降低到钻井管柱中并旋转钻杆柱以旋转钻头以加深井。 在选定的深度处,操作者从型材中释放底孔组件,并使钻井液从围绕衬管柱的衬套环向后循环,将底孔组件向上泵送衬套柱。 当底孔组件到达钻杆柱的下端时,它锁定到位于钻杆柱下端的捕集器工具。 操作者将衬管悬挂器组件移动到与套管柱的设定接合中,从钻柱排出钻杆柱,并与钻孔组件一起取回钻杆柱。

    Offshore Casing Drilling Method
    10.
    发明申请
    Offshore Casing Drilling Method 有权
    海上套管钻井方法

    公开(公告)号:US20110061939A1

    公开(公告)日:2011-03-17

    申请号:US12561416

    申请日:2009-09-17

    申请人: John Boyle

    发明人: John Boyle

    IPC分类号: E21B7/20 E21B33/06 E21B33/00

    CPC分类号: E21B7/20

    摘要: A method of casing drilling a portion of an offshore well includes running a casing string with a drill bit assembly attached to it into a previously drilled portion of the well. Before the drill bit assembly reaches bottom, the operator attaches drill pipe to the casing string and lowers the casing string on the drill pipe. When the drill bit is at bottom, an upper end of the casing string should be below the blowout preventer. The operator then performs casing drilling by rotating the drill pipe. When at a desired depth for the casing string, the operator pulls the drill pipe from the well and lifts the casing string up until its upper end is at the rig floor. The operator then runs the casing string back into the well but using casing in this instance. The operator then cements the casing string.

    摘要翻译: 一种套管钻井海上井的一部分的方法包括:将具有与其连接的钻头组件的套管柱运行到井的之前钻孔的部分中。 在钻头组件到达底部之前,操作人员将钻杆连接到套管柱上,并降低钻杆上的套管柱。 当钻头位于底部时,套管柱的上端应位于防喷器下方。 然后操作员通过旋转钻杆进行套管钻井。 当处于套管柱所需的深度时,操作者将钻杆从井中拉出并将套管柱提起直到其上端在钻台上。 然后操作员将套管柱运回井中,但在这种情况下使用套管。 然后,操作人员将套管柱固定。