Method and apparatus of intelligent downhole multi-function inflatable system for oil and gas wells

A method, comprising:

• providing an inflatable downhole tool comprising:
• at least one pressurized container disposed inside an outer shell of the inflatable downhole tool, the pressurized container containing compressed gas;
• a plurality of floatation chambers fluidly connected through connection lines to the at least one pressurized container;
• and
• a dissolvable plug positioned along each of the connection lines between the floatation chambers and the at least one pressurized container;
• connecting a tool sub to an axial end of the inflatable downhole tool;
• sending the inflatable downhole tool down a well;
• triggering at least one activation mechanism to dissolve at least one of the dissolvable plugs;
• and
• when the at least one dissolvable plug dissolves, inflating at least one of the floatation chambers with the compressed gas to float the inflatable downhole tool to an uphole position in the well.

A method of assembling a downhole tool, comprising:

• providing a body of an inflatable downhole tool comprising an outer shell and a threaded connection at an axial end of the body, wherein the outer shell is designed to contain floatation chambers when the floatation chambers are inflated;
• providing the floatation chambers inside the outer shell when the floatation chambers are uninflated;
• providing at least one pressurized container inside the body, wherein connection lines fluidly connect the at least one pressurized container to the floatation chambers;
• positioning a dissolvable plug in at least one connection line to plug an opening to the pressurized container;
• and
• attaching a tool sub to the threaded connection.