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    • 2. 发明申请
    • Apparatus and method for pressure-compensated telemetry and power generation in a borehole
    • 钻孔中压力补偿遥测和发电的装置和方法
    • US20050194186A1
    • 2005-09-08
    • US10794726
    • 2004-03-06
    • Richard ThorpRaju Eason
    • Richard ThorpRaju Eason
    • E21B4/04E21B7/00E21B41/00E21B47/12E21B47/18
    • E21B47/182E21B41/0085
    • An apparatus and related method are useful for compensating the pressure of drilling fluid in a drill collar disposed in a borehole. The apparatus includes a stator adapted for being secured within the drill collar against rotation relative to the drill collar, and a shaft rotatably carried within the stator so as to define a fluid-conducting annular gap between the shaft and the stator. The shaft has a fluid-conducting channel extending axially therethrough. A rotor is secured about the shaft for rotation therewith. A portion of the rotor is disposed adjacent a portion of the stator so as to define an inlet between the rotor and stator portions through which drilling fluid in the drill collar will be conducted. The rotor portion further cooperates with the stator and the shaft to define a first annular cavity that fluidly communicates with the gap and the inlet. A rotary seal is disposed in the first cavity for isolating the gap from the inlet. Either the rotor, the shaft, or a combination thereof, are equipped with a first compensating chamber for holding a compensating fluid. The first compensating chamber fluidly communicates with the gap. A movable barrier is disposed in the first compensating chamber for isolating the compensating fluid. At least one port extends through the rotor for communicating drilling fluid pressure to the compensating fluid via the movable barrier.
    • 一种装置和相关方法可用于补偿钻孔中设置在钻孔中的钻井液的压力。 该装置包括一个适于固定在钻铤内的定子,以防止相对于钻铤的旋转;以及可转动地支承在定子内的轴,以便在轴与定子之间限定一个导流环形间隙。 轴具有轴向延伸穿过其中的导流通道。 转子固定在轴上以与其一起转动。 转子的一部分邻近定子的一部分设置,以便在转子和定子部分之间限定一个入口,通过该入口可以进行钻铤中的钻井液。 转子部分进一步与定子和轴配合,以限定与间隙和入口流体连通的第一环形空腔。 旋转密封件设置在第一腔体中,用于将间隙与入口隔离。 转子,轴或其组合都配备有用于保持补偿流体的第一补偿室。 第一补偿室与间隙流体连通。 在第一补偿室中设置可动隔离件,用于隔离补偿流体。 至少一个端口延伸穿过转子,用于经由可移动屏障将钻井液压力传递到补偿流体。
    • 5. 发明申请
    • WHILE DRILLING SYSTEM AND METHOD
    • 钻井系统和方法
    • US20050016771A1
    • 2005-01-27
    • US10709802
    • 2004-05-28
    • James MayesMario ArayaRichard Thorp
    • James MayesMario ArayaRichard Thorp
    • E21B47/01E21B47/06E21B47/12E21B47/026
    • E21B47/00E21B47/01G01V11/002
    • A while drilling system and method for determining downhole parameters is provided. The system includes a retrievable while drilling tool positionable in a downhole drilling tool, a sensor chassis and at least one sensor. The while drilling tool is positionable in the downhole drilling tool and has a first communication coupler at an end thereof. The sensor chassis is supported in the drilling tool. The sensor chassis has a second communication coupler at an end thereof for operative connection with the first communication coupler. The sensor is positioned in the chassis and is adapted to measure internal and/or external parameters of the drilling tool. The sensor is operatively connected to the while drilling tool via the communication coupler for communication therebetween. The sensor may be positioned in the while drilling tool and retrievable with the drilling tool. Preferably, the system is operable in high temperature and high pressure conditions.
    • 提供了一种用于确定井下参数的钻井系统和方法。 该系统包括可钻取的可钻取工具,其可定位在井下钻具,传感器底盘和至少一个传感器中。 同时钻孔工具可定位在井下钻具中,并且在其末端具有第一通信耦合器。 传感器底盘支撑在钻具中。 传感器底盘在其末端具有第二通信耦合器,用于与第一通信耦合器操作连接。 传感器位于底盘中,适用于测量钻具的内部和/或外部参数。 传感器通过通信耦合器可操作地连接到钻孔工具,用于在它们之间进行通信。 传感器可以定位在同时钻孔工具中,并可用钻具回收。 优选地,该系统可在高温和高压条件下操作。
    • 10. 发明授权
    • Apparatus and method for pressure-compensated telemetry and power generation in a borehole
    • 钻孔中压力补偿遥测和发电的装置和方法
    • US07083008B2
    • 2006-08-01
    • US10794726
    • 2004-03-06
    • Richard ThorpRaju Eason
    • Richard ThorpRaju Eason
    • E21B4/04E21B17/18
    • E21B47/182E21B41/0085
    • An apparatus and related method are useful for compensating the pressure of drilling fluid in a drill collar disposed in a borehole. The apparatus includes a stator adapted for being secured within the drill collar against rotation relative to the drill collar, and a shaft rotatably carried within the stator so as to define a fluid-conducting annular gap between the shaft and the stator. The shaft has a fluid-conducting channel extending axially therethrough. A rotor is secured about the shaft for rotation therewith. A portion of the rotor is disposed adjacent a portion of the stator so as to define an inlet between the rotor and stator portions through which drilling fluid in the drill collar will be conducted. The rotor portion further cooperates with the stator and the shaft to define a first annular cavity that fluidly communicates with the gap and the inlet. A rotary seal is disposed in the first cavity for isolating the gap from the inlet. Either the rotor, the shaft, or a combination thereof, are equipped with a first compensating chamber for holding a compensating fluid. The first compensating chamber fluidly communicates with the gap. A movable barrier is disposed in the first compensating chamber for isolating the compensating fluid. At least one port extends through the rotor for communicating drilling fluid pressure to the compensating fluid via the movable barrier.
    • 一种装置和相关方法可用于补偿钻孔中设置在钻孔中的钻井液的压力。 该装置包括一个适于固定在钻铤内的定子,以防止相对于钻铤的旋转;以及可转动地支承在定子内的轴,以便在轴与定子之间限定一个导流环形间隙。 轴具有轴向延伸穿过其中的导流通道。 转子固定在轴上以与其一起转动。 转子的一部分邻近定子的一部分设置,以便在转子和定子部分之间限定一个入口,通过该入口可以进行钻铤中的钻井液。 转子部分进一步与定子和轴配合,以限定与间隙和入口流体连通的第一环形空腔。 旋转密封件设置在第一腔体中,用于将间隙与入口隔离。 转子,轴或其组合都配备有用于保持补偿流体的第一补偿室。 第一补偿室与间隙流体连通。 在第一补偿室中设置可动隔离件,用于隔离补偿流体。 至少一个端口延伸穿过转子,用于经由可移动屏障将钻井液压力传递到补偿流体。