Fluid driven pump for removing debris from a wellbore and methods of using same

摘要

A downhole tool for moving fluid through the tool comprises a rotatable sleeve disposed within a bore of the tool. The sleeve includes an opened upper end and a closed lower end to define a cavity. A fluid movement profile is disposed along the lower end. A directional port is disposed in the side of the sleeve in fluid communication with the cavity and an upper port disposed in the tool. The upper port can be isolated from a lower port in the tool, the lower port being in fluid communication with the fluid movement profile. A first fluid flowing downward enters the cavity, exits the directional port causing rotation of the sleeve, and flows out the tool through the upper port. Sleeve rotation causes a second fluid to be drawn upward into contact with the fluid movement profile which directs the second fluid out of the lower port.

主权项

1. A downhole tool for moving fluid through the downhole tool, the downhole tool comprising:
a tubular member having an upper end, a lower end, an outer wall surface, an inner wall surface defining a longitudinal bore, an upper port disposed between the outer wall surface and the inner wall surface, and a lower port disposed between the outer wall surface and the inner wall surface, the upper port being isolated from the lower port; and a sleeve in rotatable engagement with the inner wall surface of the tubular member, the sleeve at least partially isolating the upper port from the lower port, the sleeve having a sleeve upper end and a sleeve lower end, the sleeve upper end having a sleeve upper end port and the sleeve lower end being closed thereby partially defining a sleeve cavity in fluid communication with the sleeve upper end port, the sleeve cavity having a directional port disposed through a sleeve inner wall surface partially defining the sleeve cavity and a sleeve outer wall surface, the directional port being in fluid communication with the upper port of the tubular member, such that flow through said directional port causes rotation of said sleeve, the sleeve lower end having a fluid movement profile extending no lower than said lower port for facilitating movement of the fluid from the lower end of the tubular member through the lower port of the tubular member.