Downhole removable cage with circumferentially disposed instruments

1. A cage for fitment on a downhole tool component mandrel, the cage comprising:

a cylindrical body having a bore sized and shaped to fit about said downhole tool component mandrel, an inner surface defining said bore, an outer surface spaced apart from said bore, and a first end

a stab connection originating at said first end and said stab connection having a plurality of circumferentially arranged electrical connectors extending away from said first end in an axial direction; and

a plurality of independently excitable downhole drill string instruments circumferentially disposed about said outer surface.

2. The cage of claim 1 , wherein at least one of the plurality of downhole drill string instruments is an induction receiver.

3. The cage of claim 1 , wherein at least one of the plurality of downhole drill string instruments is an induction transmitter.

4. The cage of claim 3 , wherein the induction transmitter is a Halbach array.

5. The cage of claim 1 , wherein at least one of the plurality of downhole drill string instruments is a battery.

6. The cage of claim 1 , wherein at least one of the plurality of downhole drill string instruments is a nuclear tool.

7. The cage of claim 1 , wherein at least one of the plurality of downhole drill string instruments is an acoustic tool.

8. The cage of claim 1 , wherein the cage has a second end spaced apart from said first end, said second end having a dock sized and shaped to receive said stab connection.

9. The cage of claim 1 , wherein the cage includes a shell disposed between said outer surface and said plurality of independently excitable downhole drill string instruments, said shell extending axially along said outer surface.

10. The cage of claim 9 , wherein the shell has at least one recess sized and shaped to receive at least one downhole drill string instrument.

11. The cage of claim 9 , wherein the cage includes a seal disposed on the cylindrical cage.

12. The cage of claim 9 , wherein the shell is formed of a plurality of segments.

13. The cage of claim 12 , wherein at least two segments are joined through a joining mechanism disposed at least partially on each segment.

14. The cage of claim 1 , wherein the cage has an alignment key disposed on the first end.

15. The cage of claim 1 , further comprising a multiplexer, wherein the stab connection electrically communicates with said multiplexor.

16. The cage of claim 1 , wherein the cage includes a plurality of longitudinal grooves disposed circumferentially around the cage.

17. The cage of claim 16 , wherein the cage further comprises an outer cover having a plurality of rods with a first geometry complementary to a second geometry of the plurality of grooves.

18. The cage of claim 1 , further comprising a uniquely identifiable processor unit.

19. The cage of claim 1 , wherein the cage further comprises a processing unit.

20. A downhole drill string component, comprising:

a mandrel having a mandrel outer surface;

a first substantially cylindrical cage having:

a first body having a first bore sized and shaped to fit about said mandrel outer surface, a first inner surface defining said first bore, a first outer surface spaced apart from said first bore, and a first end;

a first stab connection originating at said first end and said first stab connection having a first plurality of circumferentially arranged electrical connectors extending away from said first end; and

a first plurality of independently excitable downhole drill string instruments circumferentially disposed about said first outer surface;

an alignment key disposed at said first end; and

a second substantially cylindrical cage having:

a second body having a second bore sized and shaped to fit about said mandrel outer surface, a second inner surface defining said second bore, a second outer surface spaced apart from said second bore, and a second end;

a dock connection positioned at said second end, said dock connection sized and shaped to receive said first plurality of circumferentially arranged electrical connectors; and

a port sized and shaped to receive said alignment key.