Patent ID: 7762324

Claim:
A fracturing tool comprising: a first crossover sub-assembly comprising a first crossover bore and a first window in fluid communication with the first crossover bore; a second crossover sub-assembly comprising a second crossover bore and a second window in fluid communication with the second crossover bore, the second crossover bore being in fluid communication with the first crossover bore and the first window being in phased alignment with the second window; an isolation sleeve disposed within the first and second crossover bores, the isolation sleeve comprising an isolation sleeve bore and at least one isolation sleeve window; and a crossover sub window alignment assembly operatively associated with the isolation sleeve, the crossover sub window alignment assembly causing placement of the first and second windows in fluid communication with the isolation sleeve window, wherein the crossover sub window alignment assembly comprises an outer housing defining a fluid chamber, an actuator housing defining an actuator housing chamber, the actuator housing having at least one port placing the fluid chamber in fluid communication with the actuator housing chamber, and a fluid actuatable actuator disposed within the actuator housing.