seal 112 in this position the tool is as illustrated in fig4 to deflate the element 74 the operator at the surface picks up on the tubing string pulling mandrel 14 upward until openings 56 clear seal 104 at that point without circulation from the surface the pressure previously trapped in cavities 80 and 82 is allowed to vent through opening 84 into bore 54 out openings 56 that is the position illustrated in fig5 with arrows 116 showing the fluid escaping from cavities 80 and 82 the tool can then be pulled up with the tubing string to the surface it should be noted that the arrangement of lower assembly 64 connected to ring 66 and held to cap 62 by shear pin 68 serves to retain element 74 in the retracted position as shown in fig6 while the tool is being run into the well this minimizes damage to element 74 on the trip into the well until it is brought to a desired depth if during operations the apparatus a loses its grip on the wellbore or casing the apparatus a can easily be reset by pulling up at the surface sufficient to expose openings 56 without circulation the tool can then be moved up or down as desired when the proper elevation is reached circulation from the surface is restarted with openings 56 exposed as shown in fig6 the re establishing of circulation from the surface increases pressure in bore 54 and reinflates element 74 as previously described thereafter the operator at the surface lets up on the tubing string or coiled tubing unit the.