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    • 1. 发明申请
    • DUAL GRADIENT MANAGED PRESSURE DRILLING
    • 双级管理压力钻井
    • US20130192841A1
    • 2013-08-01
    • US13752804
    • 2013-01-29
    • Guy F. FeaseyDavid PavelMark A. Mitchell
    • Guy F. FeaseyDavid PavelMark A. Mitchell
    • E21B21/08
    • E21B21/08E21B7/12E21B21/001
    • A method of drilling a subsea wellbore includes drilling the wellbore by injecting drilling fluid through a tubular string extending into the wellbore from an offshore drilling unit (ODU) and rotating a drill bit disposed on a bottom of the tubular string. The method further includes, while drilling the wellbore: mixing lifting fluid with drilling returns at a flow rate proportionate to a flow rate of the drilling fluid, thereby forming a return mixture. The lifting fluid has a density substantially less than a density of the drilling fluid. The return mixture has a density substantially less than the drilling fluid density. The method further includes, while drilling the wellbore: measuring a flow rate of the returns or the return mixture; and comparing the measured flow rate to the drilling fluid flow rate to ensure control of a formation being drilled.
    • 钻井海底钻井的方法包括通过从钻井单元(ODU)延伸到井筒中的管柱注入钻井液并旋转设置在管柱的底部上的钻头来钻井孔。 该方法还包括:在钻井井的同时:将提升液与钻井液混合,流量与钻井液的流量成比例,从而形成回流混合物。 提升流体的密度显着小于钻井液的密度。 回流混合物的密度显着小于钻井液密度。 该方法还包括在钻井井时:测量回油或回流混合物的流速; 并将测量的流量与钻井液流量进行比较,以确保正在钻取的地层的控制。
    • 4. 发明授权
    • Engine intake air flow control assembly
    • 发动机进气流量控制组件
    • US08146564B2
    • 2012-04-03
    • US12651674
    • 2010-01-04
    • Jian Jun ZhangMark A. MitchellKo-Jen Wu
    • Jian Jun ZhangMark A. MitchellKo-Jen Wu
    • F02B31/08
    • F02M35/10085F02B31/06F02D9/1095Y02T10/146
    • An engine assembly may include a cylinder head, an intake manifold assembly, first and second vanes, and an actuation mechanism. The first and second vanes may be rotatably coupled to the intake manifold assembly. The first vane may be located within an outlet of a first intake passage and the second vane may be located within an outlet of a second intake passage. The first and second vanes may be displaceable from an open position to a closed position. The first vane may extend along a wall defining the first intake passage when in the open position and the second vane may extend along a wall defining the second intake passage when in the open position. The actuation mechanism may be coupled to the first and second vanes to rotate the first and second vanes between the open and closed positions.
    • 发动机组件可以包括气缸盖,进气歧管组件,第一和第二叶片以及致动机构。 第一和第二叶片可以可旋转地联接到进气歧管组件。 第一叶片可以位于第一进气通道的出口内,并且第二叶片可以位于第二进气通道的出口内。 第一和第二叶片可以从打开位置移动到关闭位置。 当处于打开位置时,第一叶片可以沿着限定第一进气通道的壁延伸,并且当处于打开位置时,第二叶片可以沿着限定第二进气通道的壁延伸。 致动机构可以联接到第一和第二叶片,以使第一和第二叶片在打开位置和关闭位置之间旋转。
    • 5. 发明申请
    • ENGINE INTAKE AIR FLOW CONTROL ASSEMBLY
    • 发动机吸入空气流量控制装置
    • US20110162611A1
    • 2011-07-07
    • US12651674
    • 2010-01-04
    • JIAN JUN ZHANGMARK A. MITCHELLKO-JEN WU
    • JIAN JUN ZHANGMARK A. MITCHELLKO-JEN WU
    • F02M35/10
    • F02M35/10085F02B31/06F02D9/1095Y02T10/146
    • An engine assembly may include a cylinder head, an intake manifold assembly, first and second vanes, and an actuation mechanism. The first and second vanes may be rotatably coupled to the intake manifold assembly. The first vane may be located within an outlet of a first intake passage and the second vane may be located within an outlet of a second intake passage. The first and second vanes may be displaceable from an open position to a closed position. The first vane may extend along a wall defining the first intake passage when in the open position and the second vane may extend along a wall defining the second intake passage when in the open position. The actuation mechanism may be coupled to the first and second vanes to rotate the first and second vanes between the open and closed positions.
    • 发动机组件可以包括气缸盖,进气歧管组件,第一和第二叶片以及致动机构。 第一和第二叶片可以可旋转地联接到进气歧管组件。 第一叶片可以位于第一进气通道的出口内,并且第二叶片可以位于第二进气通道的出口内。 第一和第二叶片可以从打开位置移动到关闭位置。 当处于打开位置时,第一叶片可以沿着限定第一进气通道的壁延伸,并且当处于打开位置时,第二叶片可以沿着限定第二进气通道的壁延伸。 致动机构可以联接到第一和第二叶片,以使第一和第二叶片在打开位置和关闭位置之间旋转。
    • 8. 发明申请
    • Continously-Operable Flow Stream Processing System and Method
    • 连续可行的流程处理系统和方法
    • US20140263085A1
    • 2014-09-18
    • US13827855
    • 2013-03-14
    • Mark A. MitchellBrian Anderson
    • Mark A. MitchellBrian Anderson
    • B01D29/00B01D29/60B01D29/66
    • B01D46/18B01D46/0058
    • A continuously-operable flow stream processing system and method has two or more fluid processing media arranged in a fluid conduit network to provide alternate flow paths for a flow stream to be processed (e.g. filtered). Valves and other flow control devices, e.g. controller module and sensors, are used to redirect the flow stream from one or more service-needed fluid processing media to service-ready fluid processing media without taking the system offline to remove, repair, replace, clean in situ, or otherwise service the service-needed fluid processing media, so that the system may operate continuously to process the flow stream without stoppage. Redirection into alternative flow paths and media may be automatically implemented based on a predetermined threshold or trigger condition, such as may be detected by sensors directly or indirectly monitoring media condition.
    • 连续可操作的流动流处理系统和方法具有布置在流体管道网络中的两个或更多个流体处理介质,以为要处理(例如过滤)的流动流提供交替的流动路径。 阀和其它流量控制装置,例如 控制器模块和传感器用于将来自一个或多个服务需要的流体处理介质的流量重定向到服务就绪流体处理介质,而不使系统脱机以移除,修复,替换,原位清洁或以其他方式服务该服务 - 所需的流体处理介质,使得系统可以连续地操作以处理流动而不停止。 可以基于预定的阈值或触发条件自动实现重定向到替代流路径和媒体,诸如可以由传感器直接或间接地监视媒体条件来检测。