公开(公告)号：US4386422A

公开(公告)日：1983-05-31

申请号：US190626

申请日：1980-09-25

申请人： Edward S. Mumby ,  John D. Jeter

发明人： Edward S. Mumby ,  John D. Jeter

IPC分类号： E21B47/18 ,  G01V1/40

CPC分类号： E21B47/18 ,  E21B47/185

摘要： A monostable valve for insertion in a drill string used in forming a borehole such as an oil well. In an open position, the valve vents drilling fluid flowing in the drill string to an annulus in the borehole for return flow to the surface, thus generating a surface-detectable negative fluid-pressure pulse. A valve closure member is supported for horizontal movement to provide significant isolation from vertical accelerations occurring during drilling, and the closure member and associated valve seat are field replaceable. Primary power for valve actuation is drawn from the drilling-fluid hydraulic energy as controlled by a low-power solenoid-actuated pilot valve.

摘要翻译： 用于插入用于形成诸如油井的钻孔的钻柱中的单稳态阀。 在打开位置，阀将在钻柱中流动的钻井流体通向钻孔中的环形空间，以返回到表面，从而产生表面可检测的负流体压力脉冲。 支撑阀关闭构件用于水平运动，以提供与在钻孔期间发生的垂直加速度的显着隔离，并且关闭构件和相关联的阀座是现场可更换的。 用于阀致动的主要功率来自由低功率电磁致动先导阀控制的钻井液体液压能量。

公开(公告)号：US4319649A

公开(公告)日：1982-03-16

申请号：US370927

申请日：1973-06-18

申请人： John D. Jeter

发明人： John D. Jeter

IPC分类号： E21B7/06 ,  E21B7/08 ,  E21B17/10

CPC分类号： E21B17/1014 ,  E21B7/062

摘要： The stabilizer disclosed includes a body for mounting on the drill string and a sleeve for mounting on the body to engage the wall of the well bore. The body is mounted eccentrically of the longitudinal axis of the drill string and the sleeve is mounted eccentrically to the longitudinal axis of the body. The eccentricities of the body and the sleeve are equal so that when positioned where the eccentricities extend in the opposite direction, the sleeve will be centrally located with respect to the drill string and will tend to hold the drill string in the center of the well bore, whereas when the body and sleeve are rotated relatively so that the eccentricities of the two members accumulate, the sleeve will then be positioned with its longitudinal axis spaced from the longitudinal axis of the drill string and the sleeve will exert a lateral force on the drill string urging the drill string away from the center of the well bore.

摘要翻译： 所公开的稳定器包括用于安装在钻柱上的主体和用于安装在主体上以与井眼的壁接合的套筒。 身体偏心于钻柱的纵向轴线，并且套筒偏心地安装在身体的纵向轴线上。 主体和套筒的偏心度相等，使得当定位在偏心沿相反方向延伸的位置时，套筒将相对于钻柱中心定位，并且将倾向于将钻柱保持在井筒的中心 而当主体和套筒相对旋转以使得两个构件的偏心度积聚时，套筒将被定位成其纵向轴线与钻柱的纵向轴线间隔开，套筒将在钻头上施加横向力 弦杆将钻柱推离井筒的中心。

公开(公告)号：USRE29526E

公开(公告)日：1978-01-31

申请号：US435413

申请日：1974-01-22

申请人： John D. Jeter

发明人： John D. Jeter

IPC分类号： E21B7/06 ,  E21B47/022

CPC分类号： E21B47/02232 ,  E21B7/06

摘要： A pendulum is mounted in the drill pipe close to the drill bit to assume a vertical position in the azimuthal plane of the drill pipe. When the position of the pendulum is such that the inclination of the drill pipe is not a preselected amount or the azimuthal direction of the pipe is not the preselected direction, a lateral force is imposed on the drill bit urging it to drill in a direction that will return the drill pipe to said preselected inclination or azimuthal direction. The pendulum and its associated apparatus is rotated in the direction opposite the direction that the drill pipe is rotated and at the same speed, so that the pendulum is substantially nonrotative relative to the earth.