Portable top drive

Details Portable top drive Portable top drive

1997-04-15

2000-02-15

Melius, Terry Lee

Boring or penetrating the earth

With above-ground means to feed tool

175195, 166 751, 166 85, 173213, E21B 304, E21B 702

Patent

active

060241810

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: 5107940 (1992-04-01), Berry
patent: 5138871 (1992-08-01), Dinsdale
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, TX, p. 3464.
"Land Rigs Benefit From Portable Top Drive System," Oil & Gas Journal, vol. 92, No. 11, Mar. 14, 1994, Tulsa, Ok, pp. 73-74.
World Oil Composite Catalog '92/'93 (vol. 2), Gulf Publishing Company, Houston, TX, pp. 540-541.
"Portable Top Drive Cuts Horizontal Drilling Company," Oil & Gas Journal, vol. 214, No. 11, Nov. 1993, Houston, TX, p. 83.

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