contact with the collar 46 the embodiment of fig2 illustrates the lower end of the upper tandem 22 to include a selectively attachable male connector 52 that can be threadingly attached to a housing 54 that houses the upper tandem 22 thus in one example embodiment the male connector 52 includes the sealing stinger 40 radial shoulder 44 and pins 48 similar to the male connector 52 the upper end of the lower tandem 20 is fitted with a collar like female connector 56 that is threadingly coupled with housing 58 on the outer surface of the lower tandem 20 the lower tandem 20 can be deployed or removed from a wellbore by coupling a wireline tool not shown with a profile 59 illustrated on an inner surface of the female connector 56 the female connector 56 which is shown an annular element may be replaced with other designs or configurations mounted on the end of the lower tandem 20 as seen in the embodiment of fig2 the alignment bores 50 project into the female connector 56 from a mating surface 60 on the upper terminal end of the female connector 56 also when the upper and lower tandems 20 22 are attached the annular shoulder 44 is in contact with the mating surface 60 the alignment bores 50 are shown having a wide opening at their upper section and have a cross sectional area that narrows.