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    • 12. 发明授权
    • Fluid pressure actuated by-pass and relief valve
    • 流体压力启动旁路和安全阀
    • US4275795A
    • 1981-06-30
    • US23202
    • 1979-03-23
    • Herbert W. BeimgrabenPaul A. Reinhardt
    • Herbert W. BeimgrabenPaul A. Reinhardt
    • E21B4/02E21B21/10E21B34/08E21B44/00E21B3/12
    • E21B44/005E21B21/10E21B34/08E21B4/02
    • A fluid pressure actuated by-pass and relief valve are positioned between a source of fluid under pressure and the hollow interior of a rotor in a fluid pressure actuated downhole drilling motor. The valve includes a hollow mandrel with an inlet opening at one end and an outlet opening at the other end connected to the rotor interior and slidably received in a movable sleeve. Fluid pressure at a first predetermined value moves the mandrel into the sleeve to block the inlet opening such that the fluid by-passes the valve and flows between the stator and the rotor to rotate a bit. Fluid pressure at a higher second predetermined value moves the sleeve relative to the mandrel to expose the inlet opening and relieve the fluid pressure on the rotor and the stator. The movement of the sleeve exposes a greater surface area thereof to the fluid pressure such that a spring moves the sleeve back to block the inlet opening only at an intermediate third predetermined fluid pressure value. A second spring moves the mandrel relative to the sleeve to expose the inlet opening when the fluid pressure falls below the first predetermined value. In two alternate embodiments, the mandrel cooperates with a stationary sleeve and the movable sleeve cooperates with a second inlet opening to separate the by-pass and relief functions.
    • 流体压力致动的旁路和安全阀位于压力流体源和流体压力致动的井下钻井马达中的转子的中空内部之间。 阀包括中空心轴,其一端具有入口开口,另一端的出口开口连接到转子内部并可滑动地容纳在可移动套筒中。 在第一预定值的流体压力将心轴移动到套管中以阻挡入口开口,使得流体绕过阀并在定子和转子之间流动以旋转一点。 在较高的第二预定值下的流体压力相对于心轴移动套筒以暴露入口开口并减轻转子和定子上的流体压力。 套筒的移动使其更大的表面积暴露于流体压力,使得弹簧仅使中间的第三预定流体压力值使套筒向后移动以阻挡入口。 当流体压力低于第一预定值时,第二弹簧相对于套筒移动心轴以暴露入口开口。 在两个替代实施例中,心轴与固定套管配合,并且可移动套筒与第二入口开口配合以分离旁路和释放功能。
    • 13. 发明授权
    • Sealing element
    • 密封元件
    • US5431412A
    • 1995-07-11
    • US32137
    • 1993-03-17
    • Paul A. ReinhardtWilliam M. RichardsDaniel E. Dinhoble
    • Paul A. ReinhardtWilliam M. RichardsDaniel E. Dinhoble
    • E21B33/12F16J15/24F16J15/10
    • E21B33/1216F16J15/24
    • The invention comprises a uniquely shaped sealing element or elements for a packer. In an application using a stack of elements, the upper element is configured so that at least a portion of its inside diameter represents an interference fit with the mandrel onto which it is mounted. A built-in moment within the packing element occurs as a result of the partial interference fit. Additionally, a taper is provided which, in effect, shifts the point of contact of the upper element closer to a central element, tending to better give extrusion support to the central element. The taper also facilitates the creation of a resistive moment which fights the tendency of the upper element to extrude in the upper outermost corner of the upper element, for example. The central element can also be installed on a mandrel with interference throughout its length to create a built-in radial force urging the element back into its original shape after it is expanded and allowed to relax. Using such shapes, the need to mechanically stretch the elements longitudinally, after they are relaxed so that the packer can be withdrawn without interference in a close running situation, is eliminated.
    • 本发明包括用于封隔器的独特形状的密封元件或元件。 在使用一堆元件的应用中,上部元件构造成使得其内部直径的至少一部分表示与安装在其上的心轴的过盈配合。 作为部分过盈配合的结果,发生包装元件内的内置时刻。 此外,提供了锥形,其实际上使上部元件的接触点更接近中心元件,趋于更好地向中心元件提供挤压支撑。 锥度也有助于产生阻止上层元件在上部元件的最上角挤出的倾向的阻力矩。 中心元件也可以安装在其长度上具有干涉的心轴上,以产生内置的径向力,该力在其被扩张并且允许其放松之后将元件推回其原始形状。 使用这种形状,需要在松弛元件之后纵向地机械地拉伸元件,以便在紧密运行的情况下能够在不受干扰的情况下取出封隔器。
    • 14. 发明授权
    • High flow injection anchor
    • 高流量注射锚
    • US4573529A
    • 1986-03-04
    • US588451
    • 1984-03-12
    • Paul A. Reinhardt
    • Paul A. Reinhardt
    • E21B23/01E21B33/129E21B41/02E21B43/12
    • E21B43/127E21B23/01E21B33/1294E21B41/02
    • An anchor for a tubing string for use with a sucker rod pump is provided which defines a large fluid passage area for the passage of treatment fluids through the anchor. The anchor comprises a tubular body or body extensions having two vertically spaced sets of radial ports. A flow sleeve is positioned in straddling relationship across the bore of the anchor body and has its external surface recessed to provide an annular passage connecting the two sets of radial flow ports. The upper set of flow ports are connected to a tubular flow line extending to the well surface while the lower set of flow ports are connected tubular flow line extending to the production zone or to the location where corrosion, scale or other treatment becomes necessary. The flow sleeve is run into the well with a sucker rod pump on the sucker rod string and can be detachably latched to the tubing string in overlapping sealing relationship to the radial flow ports. Upward movement of the sucker rod string will effect disengagement of the latched securement of the flow sleeve, permitting it to be removed from the well with the sucker rod pump.
    • 提供了用于与抽油杆泵一起使用的油管柱的锚固件,其限定用于通过锚固件的处理流体通过的大的流体通道区域。 锚固件包括具有两个垂直间隔开的一组径向端口的管状体或主体延伸部。 流动套筒跨越锚固体主体的孔定位成跨接关系,并且其外表面凹入以提供连接两组径向流动端口的环形通道。 上部流动端口连接到延伸到井表面的管状流动管线,而下部一组流动端口连接到延伸到生产区域的管状流动管线或需要腐蚀,水垢或其它处理的位置。 流动套管通过抽油杆柱上的抽油杆泵进入井中,并且可以以与径向流动端口重叠的密封关系可拆卸地闩锁到油管柱。 抽油杆杆的向上运动将导致流动套筒的锁定固定件的分离,从而允许其与抽油杆泵从井中移除。