BOP assembly with metal inserts
US6857634B2 · kind B2 · utility
34Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Jun 28, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/062
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A blowout preventer assembly 10 includes opposed rams 12, 14, each including a rubber or elastomer sealing assembly 16, 18, with a plurality of inserts 20 forming an array 22 of metal inserts within each sealing assembly. Each insert has an upper body 24, a lower body 26, and a rib 50. Each upper and lower body includes a trailing face 36, a radially outward opposite face 38 and a leading face 40. An antiextrusion ledge 46 minimizes the extrusion gap between the OD of a tubular in the BOP and the leading face of the metal inserts in the array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.