shoulder 29 upward further compresses packing element 28 the resultant increased up force from the packing element on lower face 30 of expander 26 is transmitted through expanding threads or grooves 23 and 24 and teeth 27u into the casing wall possibly causing deeper penetration of the teeth to release and retrieve the set packer one or preferably both mandrel sections 14b and 15b must be cut between threads 18 as shown in fig1 immediately on cutting the mandrel section s the weight of any tubing suspended from the set packer on the mandrels will pull connected lower mandrel sections 14d 14c and the lower part of 14b with seal support 62 and or 15d 15c and the lower part of 15b with seal support 63 down engaging surfaces 62 and 66 and or surfaces 63 and 67 sealing the mandrel s to body section 19g and supporting tubing weight on surfaces 66 and 67 on the upper end of section 19g now mandrel 14 and or 15 may be picked up with tubing from above the packer moving mandrel section 14a with shoulder 61b and or mandrel section 15a with shoulder 61a up until these shoulders engage lower surfaces 58a and or 58b on prop 58 fig1 greater upward pull on either or both mandrels will shear screws 59 continued mandrel pull will move prop 58 up and out of split cylinder connector 19e allowing this connector to collapse inwardly disengaging threads 20 on both ends disconnecting 19e from body sections 19d and 19f continued tubing pull will move the mandrel and the upper end of the prop into contact with the lower end of section 19c the shoulder on 19c moves.