Protective cap assembly for subsea equipment
US10907433B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Apr 25, 2019 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A protective cap assembly for a subsea equipment mandrel or hub, including a protective cap body with a top plate and a cylindrical sidewall. The protective cap body may further include a primary inlet port, a first annular groove, a secondary inlet port, a second annular groove, and one or more secondary outlet ports. A primary seal may be disposed in the first annular groove to sealingly engage the mandrel or hub, and a secondary seal may be disposed in the second annular groove to sealingly engage the mandrel or hub. The protective cap assembly may further define at least in part primary and secondary chambers configured to fluidly communicate, and the secondary chamber configured to fluidly communicate directly or indirectly with the external subsea environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.