the sleeve 100 in the required direction to uncover the apertures 26 accordingly circulation fluid such as a brine or diesel can be pumped down the production string 3 through the throughbore 40 out of the apertures 26 and back up the annulus 5 to the surface where the heavy kill fluids can be recovered f an rfid tag is then coded at surface with the pre determined instruction to close the circulation sleeve sub 11 and the rfid tag is introduced into the circulation fluid flow path down the throughbore 40 the rfid detector 62 will detect the signal carried on the coded rfid tag and this is decoded by the electronics package 67 which will instruct the electric motor and hydraulic pump combination 17 to move the circulation sleeve 100 in the opposite direction to the direction it was moved in step e above such that the apertures 26 are covered up again and sealed and thus the circulation fluid flow path is stopped and g the final step in the method of setting the completion is to open the flapper valve 15 and this is done by using a third signal of two or more pre determined pressure peaks sent within a different predetermined frequency which travels down the static fluid contained in the throughbore 40 such.