Slips positioning apparatus for a well operation
US10890037B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2019 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Apr 14, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A slips positioning apparatus for a wellhead installation is installed in a fixed position relative to the blow out preventer and allows releasable locking of the slips relative to well center and driving movement of the slips relative to well center. The slips positioning apparatus includes a slips-mounting structure for accepting connection of the slips; an installation structure for mounting the apparatus rigidly above the blow out preventer and relative to well center. The installation structure is a plate that defines a first plane. The apparatus further includes a first and a second linear guides configured for movement of the slips-mounting structure relative to the installation structure along respective first and second directions in planes substantially parallel with the first plane; and first and second linear actuators for moving the slips-mounting structure respectively along the first and second linear guides. Slips are mounted on the slips-mounting structure and positioned, including releasably locked and/or driven, by the apparatus relative to well center.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.