Cantilever skidding system on a drilling rig
US8439606B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 10, 2007 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Nov 27, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B17/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides an improved cantilever (10) for skidding on a platform (30) of a drilling rig. The cantilever (10) has two longitudinal members (12) while an edge (32) of the platform (30) has two transverse members (14,14a). The longitudinal and transverse members are connected at each interposition by a sliding and swivel assembly (20, 20a, . . . 20d). Each sliding/swivel assembly (20, 20a . . . 20d) is connected by an actuator (24, 24a) to the longitudinal or transverse member so that the cantilever (10) is operable to be displaced on the platform (30) by translation, rotation or a combination of translation and rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.