Access platform for a well top drive system

Description

FIG. 1 is a front perspective view of an access platform according to the present invention.

FIG. 2 is a rear perspective view of the access platform of FIG. 1.

FIG. 3 is a side view of the access platform of FIG. 1.

FIG. 4 is a front view of the access platform of FIG. 1.

FIG. 5 is a bottom view of the access platform of FIG. 1; and,

FIG. 6 is a top view of the access platform of FIG. 1.

Claims

CLAIM The ornamental design for an access platform for a well top drive system, as shown and described.

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Inventors:	Folk; Robert Alden (Calgary, CA), Folk; Steven Lorne (Sherwood Park, CA)
Assignee:	Varco I/P, Inc. (Houston, TX)
Appl. No.:	D/207,008
Filed:	June 7, 2004

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Current U.S. Class:	D15/199
Current International Class:	1599
Field of Search:	;D15/199 ;166/78.1,77.52,378-380,385,387 ;175/85,203 ;405/259.3,259.6

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References Cited [Referenced By]

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U.S. Patent Documents

4010600	March 1977	Poole et al.
4115911	September 1978	Poole et al.
4205423	June 1980	Poole et al.
4421179	December 1983	Boyadjieff
4449596	May 1984	Boyadjieff
4458768	July 1984	Boyadjieff
4529045	July 1985	Boyadjieff et al.
4589503	May 1986	Johnson et al.
4605077	August 1986	Boyadjieff
4753300	June 1988	Shaw et al.
4759239	July 1988	Hamilton et al.
4793422	December 1988	Krasnov
4800968	January 1989	Shaw et al.
4813493	March 1989	Shaw et al.
4854383	August 1989	Arnold et al.
4865135	September 1989	Moses
4878546	November 1989	Shaw et al.
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5107940	April 1992	Berry
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5381867	January 1995	Berry
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5433279	July 1995	Tessari et al.
5501286	March 1996	Berry
5755296	May 1998	Richardson et al.
6024181	February 2000	Richardson et al.
6276450	August 2001	Seneviratne
6527047	March 2003	Pietras
6536520	March 2003	Snider et al.
6622796	September 2003	Pietras
6679333	January 2004	York et al.
6688398	February 2004	Pietras
6705405	March 2004	Pietras
6725938	April 2004	Pietras
6742596	June 2004	Haugen

Other References

An Overview of Top-Drive Drilling Systems Applications and Experiences, G.I. Boyadjieff, 1ADC/SPE 14716. 8 pp. 1986. cited by other . Varco Pioneers AC Top Drive, Engineering Award Winners, AC Top Drive Technology Update #1, Hart's Petroleum Engineer, 4 pp., Apr. 1997. cited by other . Challenger Rig & Mfg., Inc., Doghouse. Composite Catalog 1982-83, p. 1984-C, 1982. cited by other . AC Top Drive Technology Update #2, Varco Systems, 1 p. Prior to 2002. cited by other . Top Drive Drilling System TD 500 PAC Variable Frequency AC Top Drive. National Oilwell, 6 pp., 2002. cited by other . 1000 Ton AC Top Drive--TDS--1000. Varco Systems, 2 pp., 2002. cited by other . 750 Ton DC Top Drive TDS--45, Varco Systems, 2 pp., 2002. cited by other . 500 Ton DC Top Drive IDS--1, Varco Systems, 2 pp., 2002. cited by other . Varco's Top Drive Systems are advancing the technology of drilling. Varco Systems, 8 pp., 2001. cited by other.

Primary Examiner: Davis; Antoine D.
Attorney, Agent or Firm: McClung; Guy