VIBRATION ASSEMBLY AND METHOD

A downhole vibration assembly includes a valve positioned above a rotor that is disposed at least partially within a stator. The rotor is operatively suspended within an inner bore of a housing and configured to rotate within the stator as a fluid flows through the vibration assembly. The valve includes a rotating valve segment and a stationary valve segment each including at least one fluid passage. The rotating valve segment rotates with a rotation of the rotor. In an open position, the fluid passages of the valve segments are aligned and a fluid flows through the valve. In a restricted position, the fluid passages of the valve segments are partially or completely unaligned, thereby temporarily restricting the fluid flow through the valve to create a pressure pulse. The unobstructed pressure pulse is transmitted through the drill string or coiled tubing above the valve. 一种井下振动组件包括定位在转子上方的阀，该转子至少部分地设置在定子内。转子可操作地悬挂在壳体的内孔内并配置成当流体流过振动组件时在定子内旋转。该阀包括旋转阀部分和固定阀部分，旋转阀部分和固定阀部分各自包括至少一个流体通道。旋转阀部分随着转子的旋转而旋转。在打开位置中，阀部分的流