Downhole activation assembly with sleeve valve and method of using same

An activation system for a wellsite having a wellbore penetrating a subterranean formation, the activation system comprising:

• a downhole tool deployable into the wellbore by a conveyance;
• and
• an activation assembly operatively connectable to the downhole tool, comprising:
• a ball;
• a housing operatively connectable to the downhole tool, the housing having a housing passage for flow of fluid therethrough;
• an indexing assembly positionable in the housing, the indexing assembly comprising a multiple position indexer and an indexing tube, the indexing assembly operatively connectable to the downhole tool;
• and
• a sleeve valve comprising a fixed sleeve and a movable sleeve positionable in the housing passage of the housing and defining a ball passage therethrough, the sleeve valve having a valve seat defined therein to receive the ball such that the flow of the fluid is selectively restricted through the ball passage, the movable sleeve engagable with the indexing tube to selectively shift the indexer between multiple positions whereby the downhole tool is selectively activatable.

A method of activating a downhole tool of a wellsite having a wellbore penetrating a subterranean formation, the method comprising:

• deploying a downhole tool into the wellbore by a conveyance, the downhole tool operatively connectable to an activation assembly, the activation assembly comprising a ball, a housing, an indexing assembly operatively connected to the downhole tool, and a sleeve valve comprising a fixed sleeve and a movable sleeve;
• passing fluid through the activation assembly;
• and
• deploying the ball into the housing to selectively block flow of the fluid through the sleeve valve and create pressure changes sufficient to selectively advance the movable sleeve to shift the indexing assembly and the downhole tool between positions.