Development of more powerful top drives progresses
Journal Article
·
· Oil and Gas Journal; (United States)
OSTI ID:5892586
This paper reports that the increase in drilling of deep extended reach and horizontal wells has stimulated a number of design improvements in overhead rotary system technology. Overhead rotary systems, or top drives, are being developed with larger, more powerful motors capable of producing output torque up to 60,000 ft-lb. The load ratings of top drive systems have increased to improve rig floor safety and to allow running of larger casing strings. Overhead rotary drilling systems are referred to as derrick drillers, top drives, or overhead power swivels, depending on the manufacturer. All of the systems perform similar functions and have numerous advantages over rig floor rotary drilling with a kelly.
- OSTI ID:
- 5892586
- Journal Information:
- Oil and Gas Journal; (United States), Journal Name: Oil and Gas Journal; (United States) Vol. 90:7; ISSN OIGJA; ISSN 0030-1388
- Country of Publication:
- United States
- Language:
- English
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