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Methods and apparatus for receiving a telemetry signal with a receiver that is moveably disposed within a drillstring. In certain embodiments, the system comprises a surface module coupled to the upper end of a drillstring, an upper module detachably connected to the surface module, and a lower modu

Methods and apparatus for receiving a telemetry signal with a receiver that is moveably disposed within a drillstring. In certain embodiments, the system comprises a surface module coupled to the upper end of a drillstring, an upper module detachably connected to the surface module, and a lower module moveably disposed within the drillstring. The lower module is coupled to the upper module by an extendable cable. A telemetry signal receiver is disposed on said lower module, which also includes a tractor assembly for moving the lower module through the drillstring.

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What is claimed is: 1. A wellbore telemetry system comprising: a surface receiver system proximate a drill floor including: a surface module coupled to the upper end of a drillstring; an upper module detachably connected to said surface module and disposed within the drillstring; a lower module mov

What is claimed is: 1. A wellbore telemetry system comprising: a surface receiver system proximate a drill floor including: a surface module coupled to the upper end of a drillstring; an upper module detachably connected to said surface module and disposed within the drillstring; a lower module moveably disposed within the drillstring and coupled to said upper module; a wireless telemetry signal receiver disposed on said lower module, said lower module movevable in the drillstring between positions proximate the drill floor; and a downhole signal generating tool to communicate wireless telemetry signals to said movevable wireless telemetry signal receiver. 2. The wellbore telemetry system of claim 1 wherein said lower module further comprises a tractor assembly adapted to move said lower module through the drillstring. 3. The wellbore telemetry system of claim 1 further comprising a detachable electrical connector coupling said surface module to said upper module. 4. The welibore telemetry system of claim 1 wherein said upper module further comprises a cable reel. 5. The wellbore telemetry system of claim 4 further comprising a cable spooled onto the cable reel and coupled to said lower module and said upper module. 6. A method for receiving telemetry signals comprising: disposing a surface receiver array within a drillstring; transmitting wireless telemetry signals from a signal generating tool disposed on said drillstring downhole of said surface receiver array; moving said surface receiver array within said drillstring and proximate a drill floor, to improve reception of said wireless telemetry signals; and relaying the received signal to a data analysis system. 7. The method of claim 6 wherein the receiver array is disposed on a tractor assembly adapted to move the array within the drillstring. 8. The method of claim 6 further comprising: disposing an upper assembly in the drillstring, wherein the acoustic receiver array is coupled to the upper assembly by a cable; connecting a surface module to the upper end of the drillstring; and detachably connecting the upper assembly to the surface module. 9. The method of claim 8 wherein the received acoustic signals are relayed from the acoustic receiver array through the cable to the upper assembly, from the upper assembly to the surface module, and from the surface module to the data analysis system. 10. A method for using a telemetry receiver system comprising: installing the telemetry receiver system on a drillstring proximate a drill floor, wherein the telemetry receiver system comprises: a surface module coupled to the upper end of the drillstring; an upper module detachably connected to the surface module and disposed within the drillstring; and a lower module moveably disposed within the drillstring and coupled to the upper module, wherein the lower module comprises a wireless telemetry signal receiver; moving the lower module within the drillstring and proximate the drill floor, to location optimizing the reception of wireless telemetry signals from a downhole signal generating tool; and relaying telemetry signals from the receiver to a data analysis system through the upper module and the surface module. 11. The method of claim 10 further comprising: moving the lower module into engagement with the upper module; detaching the upper module from the surface module; moving the lower module and upper module downward within the drillstring; removing the surface module from the drillstring; adding an additional length of drill pipe to the drillstring; connecting the surface module to the top of the drillstring; moving the lower module and the upper module upward through the drillstring; attaching the upper module to the surface module; moving the lower module within the drillstring to a location optimizing the reception of wireless acoustic telemetry signals; and relaying telemetry signals from the receiver to a data analysis system through the upper module and the surface module. 12. The method of claim 10 wherein said lower module further comprises a tractor assembly adapted to move the lower module through the drillstring. 13. The method of claim 10 further comprising a detachable electrical connector coupling the surface module to the upper module. 14. The method of claim 10 wherein the upper module further comprises a cable reel. 15. The method of claim 14 further comprising a cable spooled onto the cable reel and coupled to the lower module and the upper module. 16. The wellbore telemetry system of claim 1 wherein at least one of said surface module, said upper module, and said lower module include a fluid path therethrough to allow fluid to be circulated through said drillstring. 17. The welibore telemetry system of claim 1 wherein said upper module includes a base directly and detachably connected to a support frame of said surface module. 18. The method of claim 10 wherein at least one of said surface module, said upper module, and said lower module include a fluid path therethrough to allow fluid to be circulated through said drillstring. 19. The method of claim 10 wherein said upper module includes a base directly and detachably connected to a support frame of said surface module. 20. The wellbore telemetry system of claim 1 wherein said wireless telemetry signals comprise at least one of a drilling parameter and a wellbore condition.