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    DENSITY BASED MECHANICAL VALVE CONTROL SYSTEM
    1.
    发明申请
    DENSITY BASED MECHANICAL VALVE CONTROL SYSTEM 有权
    基于密度的机械阀门控制系统

    公开(公告)号：US20150000751A1

    公开(公告)日：2015-01-01

    申请号：US14372151

    申请日：2013-01-14

    Applicant: M-I L.L.C.

    Inventor： Christopher D. Nicholson

    IPC: F16K31/20 ,  F16K1/22

    CPC classification number: F16K31/20 ,  E21B21/067 ,  E21B34/16 ,  F16K1/22 ,  F16K31/18 ,  Y10T137/0324 ,  Y10T137/7439 ,  Y10T137/7481

    Abstract: An apparatus for controlling a flow of a fluid, such as a drilling fluid or drilling mud, is disclosed. The apparatus may include: a valve member; and a float member mechanically coupled to the valve member and configured to operate on the valve member when fully submerged in a fluid. The coupled float member is configured to increase flow through the valve member as a density of the fluid decreases and to restrict flow through the valve member as the density of the fluid increases.

    Abstract translation: 公开了一种用于控制诸如钻井液或钻井泥浆的流体流动的装置。 该装置可以包括：阀构件; 以及浮动构件，其机械地联接到所述阀构件并且构造成当完全浸没在流体中时在所述阀构件上操作。 耦合的浮动构件构造成当流体的密度减小时增加通过阀构件的流动，并且随着流体的密度增加而限制流过阀构件的流动。

    Hydraulic position indicator system
    3.
    发明授权
    Hydraulic position indicator system 有权

    公开(公告)号：US10221650B2

    公开(公告)日：2019-03-05

    申请号：US13942420

    申请日：2013-07-15

    Applicant: M-I L.L.C.

    Inventor： Christopher D. Nicholson

    IPC: E21B34/02 ,  E21B47/06 ,  E21B21/10 ,  E21B21/08 ,  F16K37/00

    Abstract: A system useful for monitoring or controlling the back pressure of fluid in a wellbore is disclosed. The system may include: a choke assembly including: a housing having an inlet, an outlet, and a bore; a choke member disposed in the bore for controlling a flow of a fluid from the inlet to the outlet, and a rod coupled to the choke member and extending through the housing; a cylinder including: a housing having an axial bore; a piston, directly or indirectly coupled to the rod, disposed in the axial bore and separating the axial bore into a first chamber and a second chamber; a position indicating device fluidly coupled to the second chamber, wherein a change in volume of fluid in the second chamber causes a corresponding change in volume of fluid in the position indicating device, thereby indicating a change in the position of the choke member.

    HOT SWAPPABLE CHOKE ACTUATOR SYSTEM AND/OR METHOD
    4.
    发明申请
    HOT SWAPPABLE CHOKE ACTUATOR SYSTEM AND/OR METHOD 审中-公开
    热交换式执行器系统和/或方法

    公开(公告)号：US20150240581A1

    公开(公告)日：2015-08-27

    申请号：US14419154

    申请日：2013-08-01

    Applicant: M-I L.L.C.

    Inventor： Christopher D. Nicholson

    IPC: E21B21/10 ,  E21B21/08

    CPC classification number: E21B21/10 ,  E21B21/08 ,  E21B34/02

    Abstract: A system having a choke assembly with a mandrel extending therefrom, an actuator with an actuator member extending therefrom, and a spool having a bore therethrough configured to provide a passage for the mandrel and the actuator member. The spool further includes a first end configured to be coupled to the choke assembly, a second end configured to be coupled to the actuator; and an access port formed in a wall of the spool. The system also includes a locking device configured to couple the mandrel to the actuator member within the bore of the spool. The access port is configured to receive the locking device.

    Abstract translation: 具有扼流组件的系统，具有从其延伸的心轴，具有从其延伸的致动器构件的致动器，以及具有通孔的线轴，其构造成为心轴和致动器构件提供通道。 所述线轴还包括构造成联接到所述扼流器组件的第一端，被配置为联接到所述致动器的第二端; 以及形成在所述线轴的壁中的进入口。 该系统还包括锁定装置，该锁定装置被配置成将该心轴连接到该线轴的孔内的致动器构件。 访问端口被配置为接收锁定设备。

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