Patent ID: 9528356
Filing Date: 2016-12-27
CPC Classification: E21B

Claim Text:
1. A flow control mechanism for a downhole tool, comprising: a housing an inner liner provided in and remaining stationary relative to the housing; a rotatable sleeve arranged to rotate about the inner liner; a slot formed around the rotatable sleeve and having a plurality of notch positions; the rotatable sleeve being set in position by a pin which extends from the housing into the slot, each notch position corresponding to one of a plurality of operating configurations of the mechanism, the operating configurations including a closed configuration, a first open configuration, and a second open configuration; the closed configuration configured to enable through-flow of fluid through the inner liner; the first open configuration configured to enable through-flow of fluid through the inner liner and through one or more flow ports; and the second open configuration configured to enable fluid flow only through the one or more flow ports.