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 multi-portion tubular sleeve disposed within the housing passage at a location axially spaced from the indexing tube and comprising a fixed sleeve portion that is fixed relative to the housing and a movable sleeve portion, wherein each of the fixed sleeve portion and the movable sleeve portion is a partial tubular that is complementary to the other portion of the tubular sleeve and that together define the multi-portion tubular sleeve;
• a ball passage extending through the tubular sleeve;
• and
• a valve seat within the ball passage configured to receive the ball such that the flow of the fluid is selectively restricted through the ball passage;
• wherein the movable sleeve portion is moveable relative to the housing and engageable with the indexing tube and is configured to translate axially relative to the fixed sleeve portion to selectively shift the indexer between multiple positions and thereby selectively activate the downhole tool.

A sleeve valve for an activation assembly configured to actuate a downhole tool, the sleeve valve comprising:

• a multi-portion tubular sleeve configured to be disposed within a housing passage of the activation assembly;
• wherein the multi-portion tubular sleeve comprises a fixed sleeve portion that is fixed relative to the housing passage and a movable sleeve portion that is moveable relative to the housing passage and wherein each of the fixed sleeve portion and the movable sleeve portion is a partial tubular that is complementary to the other portion of the tubular sleeve;
• a ball passage extending through the tubular sleeve;
• and
• a valve seat within the ball passage configured to receive a ball such that a flow of fluid is selectively restricted through the ball passage;
• wherein the movable sleeve portion is configured to translate axially relative to the fixed sleeve portion and comprises an end surface configured to engage an opposing end surface of an indexing tube within the activation assembly.