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Tubing Annular Frac

For upper annular isolation

For upper annular isolation

Flow within a specified rate window
for packer activation and zonal stimulation

For lower annular isolation

For lower annular isolation

Pump above 200 L/min closes valve

OPERATION

A brief description of where this will be utilized

• Run in hole to desired depth straddling the packers over the intended stim zone.
• Circulate through the VCV at specified rate.
• Activate Packers by flowing at specified rate to close VCV & within the rate window for zonal stimulation.
• To deactivate packers, simply kick out the pumps. The packers will retract to their original position.
• Allow time for annular equalization and pull to the next stage.
• Repeat Activation, Stimulation, and Deactivation sequence for all intended zones.
• When stages are complete, pull out of hole.