Vibration tool

摘要

A downhole vibration tool for connection with a pipe string, including a housing, an unbalanced turbine assembly contained within the housing, an inlet for introducing a fluid into the unbalanced turbine assembly, and an outlet for discharging the fluid from the unbalanced turbine assembly. The unbalanced turbine assembly includes a sleeve and at least one annular turbine which is located in an annular bore defined between the housing and the sleeve.

主权项

1. A downhole vibration tool for connection with a pipe string, comprising:
(a) a housing, the housing having an inner housing surface; (b) an unbalanced turbine assembly contained within the housing, wherein the vibration tool has a longitudinal tool axis, wherein the unbalanced turbine assembly is unbalanced relative to the longitudinal tool axis, and wherein the unbalanced turbine assembly comprises:
(i) a sleeve, the sleeve having an outer sleeve surface, wherein the inner housing surface and the outer sleeve surface define an annular bore extending through the housing;(ii) a first annular turbine rotatably contained within the annular bore, wherein the first annular turbine has a proximal first turbine end and wherein the unbalanced turbine assembly further comprises a first proximal support ring contained within the annular bore adjacent to the proximal first turbine end; (c) an inlet for introducing a fluid into the annular bore; and (d) an outlet for discharging the fluid from the annular bore.