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A bracket and tension rod device is mounted to a top-drive dolly to carry the weight of a sheave wheel assembly. The device is deployed by connecting the sheave wheel assembly to a rigid dolly arm with an adjustable tension rod to relieve a gooseneck from adverse tensile, compressive and bending for

A bracket and tension rod device is mounted to a top-drive dolly to carry the weight of a sheave wheel assembly. The device is deployed by connecting the sheave wheel assembly to a rigid dolly arm with an adjustable tension rod to relieve a gooseneck from adverse tensile, compressive and bending forces from the movement of a wireline through the sheave assembly.

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1. An access system for a top drive drilling rig to allow the entry of a conduit into a bore of a tubular string, the access system comprising:a sheave assembly, said sheave assembly configured to accept and displace the conduit, said sheave assembly extending radially outward from the tubular sting

1. An access system for a top drive drilling rig to allow the entry of a conduit into a bore of a tubular string, the access system comprising:a sheave assembly, said sheave assembly configured to accept and displace the conduit, said sheave assembly extending radially outward from the tubular sting; a gooseneck assembly to position said sheave assembly with respect to a top portion of the tubular string; a bracket assembly depending from a dolly of the top drive drilling rig, said bracket assembly including a tie bracket; and a tension rod assembly to connect from said tie bracket to said sheave assembly. 2. The access system of claim 1 wherein the conduit is selected from the group consisting of wireline, slickline, coiled tubing, and fiber optic cable.3. The access system of claim 1 wherein said tie bracket extends radially outward of said bracket assembly in a direction substantially parallel to said sheave assembly.4. The access system of claim 1 wherein said bracket assembly further includes an adjustment device, said adjustment device having said tie bracket mounted at a distal end and said adjustment device being configured to be slidably adjustable with said bracket assembly.5. The access system of claim 1 wherein said tension rod assembly is configured to carry compressive and tensile loads.6. The access system of claim 1 wherein said tension rod assembly includes a load member, said load member having attachment lugs at either end.7. The access system of claim 6 wherein said load member is a single solid bar.8. The access system of claim 6 wherein said load member includes a pair of solid bars, said solid bars configured in series with a turnbuckle disposed therebetween.9. The access system of claim 8 wherein said turnbuckle is configured to adjust a relative position between said bracket assembly and said sheave wheel assembly.10. The access system of claim 8 wherein said turnbuckle is configured to adjust tensile and compressive forces between said bracket assembly and said sheave wheel assembly.11. The access system of claim 6 wherein said load member includes a hydraulic cylinder.12. The access system of claim 11 wherein said hydraulic cylinder is configured to adjust a relative position between said bracket assembly and said sheave wheel assembly.13. The access system of claim 11 wherein said hydraulic cylinder is configured to adjust tensile and compressive forces between said bracket assembly and said sheave wheel assembly.14. The access system of claim 6 wherein said load member includes a ball screw device.15. The access system of claim 14 wherein said ball screw device is configured to adjust a relative position between said bracket assembly and said sheave wheel assembly.16. The access system of claim 14 wherein said ball screw device is configured to adjust tensile and compressive forces between said bracket assembly and said sheave wheel assembly.17. The access system of claim 6 wherein said load member includes wire rope.18. The access system of claim 1 wherein the tie bracket is integral with the dolly of the top drive drilling rig.19. A bracket assembly to support a sheave wheel assembly on a top-drive unit, the bracket assembly comprising:an extension member configured to attach to a dolly of the top-drive unit; a vertical support member attached to said extension member, said vertical support member configured to attach to an outwardly extending portion of the dolly; an adjustment device attached to said extension member, said adjustment device adjustably connected to said extension member; a clevis tie bracket affixed to said adjustment device, said clevis tie bracket configured to be connected to a load member having a lower clevis connector, said lower clevis connector configured to attach to said clevis tie bracket; and said load member also including and an upper end connector, said upper end connector configured to attach to the sheave wheel assembly to provide adjustable support for the upper sheave wheel assembly. 20. A method to access a bore of a tubular string with an elongate conduit while using a top-drive drilling rig, the method comprising the steps of:securing a sheave wheel assembly to the top-drive drilling rig, the sheave wheel assembly located above a top portion of the tubular string; connecting a swivel between the sheave assembly and the tubular string; connecting a bracket assembly to a component of the top drive drilling rig, the bracket assembly including a tie bracket; connecting a tension rod assembly between the sheave wheel assembly and the tie bracket of the bracket assembly; and introducing the elongate conduit into the bore of the tubular string. 21. The method of claim 20 further comprising the step of manipulating an adjustment device in the tension rod assembly to manipulate a relative position and a relative load between the tie bracket and the sheave wheel assembly.22. The method of claim 20 wherein the component of the top drive drilling rig is an arm of a dolly.23. The method of claim 20 wherein the component of the top drive drilling rig in a set of bailes.24. The method of claim 20 wherein the bracket assembly and the tie bracket are integrated with the component of the tip drive drilling rig.25. An access system for a top drive drilling rig to allow the entry of a conduit into a bore of a tubular string, the access system comprising:a sheave assembly, said sheave assembly configured to accept and displace the conduit, said sheave assembly extending radially outward from the tubular sting; a gooseneck assembly to position said sheave assembly with respect to a top portion of the tubular string; a bracket assembly depending from a component of the top drive drilling rig, said bracket assembly including a tie bracket; and a tension rod assembly to connect from said tie bracket to said sheave assembly. 26. The access system of claim 25 wherein the component of the top drive drilling rig is a dolly.27. The access system of claim 25 wherein the component of the top drive drilling is a set of bailes.28. The access system of claim 25 wherein said sheave assembly includes a first and a second displacement member, said first displacement member configured to displace the conduit from a substantially vertical position to a substantially horizontal position, said second displacement member configured to displace the conduit from a substantially horizontal position to a substantially vertical position.29. The access system of claim 28 wherein said first displacement member is a single wheel.30. The access system of claim 28 wherein said second displacement member is a single wheel.31. The access system of claim 28 wherein said first displacement member is a plurality of rollers arranged in an arcuate profile.32. The access system of claim 28 wherein said second displacement member is a plurality of rollers arranged in an arcuate profile.33. An access system to allow the entry of a conduit into a bore of a tubular string in a top drive drilling rig, the sheave wheel assembly including:a sheave wheel assembly; a gooseneck assembly to locate the sheave wheel assembly with respect to a top portion of the tubular string; said gooseneck providing a pack-off device to prevent the escape of bore fluids from the tubular string; a tension rod assembly, said tension rod assembly configured to maintain the sheave wheel assembly and said gooseneck in a desired position; said tension rod assembly terminating at the sheave wheel assembly at an upper end; and said tension rod assembly terminating at a top drive drilling rig component at a lower end. 34. The access system of claim 33 wherein said drilling rig component is a dolly.35. The access system of claim 33 wherein the tension rod assembly is a plurality of tension rod members.36. The access system of claim 35 wherein said drilling rig component is a set of bailes.37. The access system of claim 33 further comprising a first and a second displacement member, said first displacement member configured to displace the conduit from a substantially vertical position to a substantially horizontal position, said second displacement member configured to displace the conduit from a substantially horizontal position to a substantially vertical position.38. The access system of claim 37 wherein said first displacement member is a single wheel.39. The access system of claim 37 wherein said second displacement member is a single wheel.40. The access system of claim 37 wherein said first displacement member is a plurality of rollers arranged in an arcuate profile.41. The access system of claim 37 wherein said second displacement member is a plurality of rollers arranged in an arcuate profile.