Patent attributes
A straddle apparatus deploys in a borehole with tubing to treat different formation zones. The apparatus has packer elements and a flow element. The packer elements have fill ports in fluid communication with the tubing and have packer valves. These packer valves are biased to open fluid communication between the elements and the fill port so the elements can be inflated to seal off a borehole section. The flow unit has a flow port in fluid communication with the tubing and has a flow valve biased to close fluid communication between the flow port and the borehole. Once the elements inflate, a control unit electronically activate the packer valves to close fluid communication between the elements and the fill ports. Then, the control units electronically activates the flow valve to open fluid communication between the flow port and the borehole so treatment can be applied to the formation zone.
