Apparatus for, and method of, landing items at a well location
US7025147B2 · kind B2 · utility
10Cited by
19References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Dec 23, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/035
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for, and method of, lowering items from a drilling rig to a well located below it. One embodiment includes the use of a landing string comprised of drill pipe having an enlarged diameter section with a shoulder along with upper and lower holders having wedge members also with shoulders that engage and support the drill pipe at the shoulder of the enlarged diameter section. In this embodiment the drill pipe and wedge members can be rotatable with respect to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.