Portable top drive

Details Portable top drive Portable top drive

1994-09-13

1998-05-26

Melius, Terry Lee

Boring or penetrating the earth

With above-ground means to feed tool

175195, 175220, 173213, E21B 1500

Patent

active

057552967

ABSTRACT:
A portable top drive drilling unit that is a self-contained assembly of components adapted for quick installation in a drilling rig and which requires a minimum of modification to the rig structure.

REFERENCES:
patent: 3754606 (1973-08-01), Ward
patent: 4830119 (1989-05-01), Haney et al.
patent: 4832552 (1989-05-01), Skelly
patent: 4865135 (1989-09-01), Moses
patent: 5038871 (1991-08-01), Dinsdale
patent: 5107940 (1992-04-01), Berry
patent: 5251709 (1993-10-01), Richardson
patent: 5381867 (1995-01-01), Berry
patent: 5433279 (1995-07-01), Tessari et al.
"Reinventing the rig," CPA Review, Oct. 1991.
Tesco Drilling Technology brochure on the portable hydraulic top drive ( Date unknown).
Canrig Drilling Technology Ltd. brochure entitled "Drilling Technology for the Nineties" (Date unknown).
World Oil Composite Catalog '92/'93 (vol. 2), Gulf Publishing Company, Houston, Texas, pp. 3464, 540-541.
"Land Rigs Benefit From Portable Top Drive System", Oil & Gas Journal, vol. 92, No. 11, Mar. 14, 1994, Tulsa, OK; pp. 73-74.
"Portable Top drive Cuts Horizontal Drilling Costs"; Oil & Gas Journal, vol. 214, Nov. 1993, Houston, Texas; p. 83.

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