30 are shaped to allow the slip segments to move from the u201c run position u201d to the u201c set position u201d and back again when the ears 29 touch surface 33 the slip segments are trapped and can not expand further this is a modification of the rotational lock pins 12 that are positioned between the slip segments in this case some length maybe 2 inches maximum needs to be added to the slip segments this configuration would apply more to a retrievable type packer where it is desired to retain the slips during retrieval referencing fig4 the mandrel lugs 1 are shown in a cross sectional longitudinal view during packer retrieval lug surface 28 contacts slip segment surface 32 and pulls slip segment 4 off cone surface 3 of course upper cone surface 2 is configured to move upward when connected to a retrieving tool from cone surface 3 to allow retraction of slip segment 4 simultaneously the inner surface of ear 29 of the lug 28 engages a lip 44 on the inside of the slip segment to retain the slip segment fig5 shows a cross section of the packer with the frangible disc removed from the bottom instead a flapper valve 34 has been added to the top end of the packer the flapper is hinged with pin 35 and seal on mandrel 45 at seal 36 this configuration would allow treatment of the well above the packer and flow of the well from below at a later time without removing any flow barriers fig6 shows the packer modified to be a seal bore packer seal bore 38 has been added to create a production packer that would allow installation of a production string not shown seals not shown on the end of.