PLUNGER LIFT SYSTEM FOR WELL
    3.
    发明申请

    公开(公告)号:US20090188673A1

    公开(公告)日:2009-07-30

    申请号:US12020366

    申请日:2008-01-25

    IPC分类号: E21B43/12

    CPC分类号: E21B43/121 F04B47/12

    摘要: A plunger lift system has a bumper and a landing positioned in tubing below a safety valve of a well. A plunger moving between the bumper and landing lifts columns of liquid above the plunger when pushed by downhole pressure. A valve on the plunger's housing is movable between open and closed positions to either permit or prevent flow through the plunger. When the plunger engages the landing, a striker rod on the landing opens the valve permitting fluid communication through the plunger to a sales line at the surface. The valve is biased to the closed position to prevent fluid communication through the plunger. When the plunger is disengaged from the striker rod, the valve closes so that application of downhole pressure can again move the plunger uphole. A controller cycles the plunger between the bumper and the landing by controlling fluid flow in the well.

    摘要翻译: 柱塞提升系统具有保险杠和位于井的安全阀下方的管道中的着陆点。 在缓冲器和着陆之间移动的柱塞在被井下压力推动时提升柱塞上方的液柱。 柱塞壳体上的阀可在打开和关闭位置之间移动,以允许或防止流过柱塞。 当柱塞接合着陆时,着陆台上的撞击杆打开阀门,允许流体通过柱塞连通至表面的销售线。 阀被偏压到关闭位置以防止流体通过柱塞连通。 当柱塞从撞击杆脱离时,阀关闭,使得井下压力的施加可以再次将柱塞向上移动。 A控制器通过控制井中的流体流动使柱塞在缓冲器和着陆之间循环。

    Gas-pressurized lubricator and method
    5.
    发明授权
    Gas-pressurized lubricator and method 有权
    气体加压润滑器及方法

    公开(公告)号:US07337854B2

    公开(公告)日:2008-03-04

    申请号:US10996867

    申请日:2004-11-24

    IPC分类号: E21B43/00

    CPC分类号: E21B43/121 F04B47/12

    摘要: Embodiments of the present invention provide methods and apparatus for reducing kinetic energy of a plunger within a plunger lift system. In one aspect, a lubricator is provided at a surface of a wellbore, the lubricator having a sealed, pressurized chamber therein to cushion the plunger upon impact. In another aspect, a method is provided for reducing the kinetic energy of the plunger by providing a compressed gas chamber within a lubricator, moving a kinetic energy-reducing surface which is partially bounding the chamber, and compressing the gas within the chamber to reduce kinetic energy of the plunger and cushion the impact force of the plunger.

    摘要翻译: 本发明的实施例提供了用于降低柱塞提升系统内的活塞的动能的方法和装置。 在一个方面,在井眼的表面设置润滑器,润滑器在其中具有密封的加压室,以在冲击时缓冲柱塞。 在另一方面,提供了一种通过在润滑器内提供压缩气体室来移动部分地限制该腔室的动能减少表面并且压缩腔室内的气体以减少动力学的方法来减少柱塞的动能的方法 柱塞的能量和缓冲柱塞的冲击力。

    Gas-pressurized lubricator
    6.
    发明申请
    Gas-pressurized lubricator 有权
    气体加压润滑器

    公开(公告)号:US20060108126A1

    公开(公告)日:2006-05-25

    申请号:US10996867

    申请日:2004-11-24

    CPC分类号: E21B43/121 F04B47/12

    摘要: Embodiments of the present invention provide methods and apparatus for reducing kinetic energy of a plunger within a plunger lift system. In one aspect, a lubricator is provided at a surface of a wellbore, the lubricator having a sealed, pressurized chamber therein to cushion the plunger upon impact. In another aspect, a method is provided for reducing the kinetic energy of the plunger by providing a compressed gas chamber within a lubricator, moving a kinetic energy-reducing surface which is partially bounding the chamber, and compressing the gas within the chamber to reduce kinetic energy of the plunger and cushion the impact force of the plunger.

    摘要翻译: 本发明的实施例提供了用于降低柱塞提升系统内的活塞的动能的方法和装置。 在一个方面,在井眼的表面设置润滑器,润滑器在其中具有密封的加压室,以在冲击时缓冲柱塞。 在另一方面,提供了一种通过在润滑器内提供压缩气体室来移动部分地限定室的动能减少表面并且压缩腔室内的气体以减少动力学的方法来减少柱塞的动能的方法 柱塞的能量和缓冲柱塞的冲击力。

    COLOR-SHIFTING REFLECTOR
    9.
    发明申请
    COLOR-SHIFTING REFLECTOR 审中-公开
    彩色反射器

    公开(公告)号:US20120154917A1

    公开(公告)日:2012-06-21

    申请号:US13352854

    申请日:2012-01-18

    IPC分类号: G02B1/10

    CPC分类号: G02B1/10

    摘要: A diffusive light reflector with a color-shifting layer for use with LED lighting systems is disclosed. The color-shifting layer shifts higher CCT LED light (e.g. 5000 Kelvin) to lower CCT LED light (e.g. 4000 Kelvin), thereby producing a “warmer” and “whiter” LED light. Also disclosed is a method of shifting low wavelength LED light to higher wavelengths using a diffusive light reflector with a color-shifting layer.

    摘要翻译: 公开了一种具有用于LED照明系统的色移层的漫射光反射器。 色移层使较高的CCT LED光(例如5000开尔文)移动以降低CCT LED光(例如4000开尔文),从而产生“更暖”和“更白”的LED灯。 还公开了一种使用具有色移层的漫射光反射器将低波长LED光转换为较高波长的方法。