Large diameter flush-joint pipe handling system
US7044216B2 · kind B2 · utility
17Cited by
18References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2003 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Jun 25, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/16
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An elevator for assembling a plurality of a large diameter pipe joints into a pipe string with a drilling rig is disclosed. The first one of a number of large diameter pipe joints is adapted to threadingly engage another large diameter pipe joint. The elevator is detachably securable to the upper end of the first joint, and is adapted to both lift and position the first joint while it is stabbed and tightened onto the string. The elevator is further adapted to co-operatively engage the rotary table of the drilling rig to rotatably tighten the second joint to the first joint as the second joint is added to the string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.