End connection assembly and method for producing the same
US12326202B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 2, 2019 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Mar 17, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/0135
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An end connection assembly (200) for pull-in and coupling of a flexible tubular pipe to an inboard hub of a subsea structure using a tie-in tool, which flexible tubular pipe comprises a plurality of superposed flexible layers (210, 214, 218) of metal materials and plastics materials, wherein the end connection assembly comprises an end fitting (202) which is connected to an end section (204) of the flexible tubular pipe in a sealed manner forming a termination of the flexible tubular pipe in which at least one layer of said plurality of flexible layers is anchored; an engagement surface (226a, 226b) for interacting with engagement means of the tie-in tool; and a collet connector assembly allowing releasable coupling of the end connection assembly to the inboard hub. The engagement surface is arranged in the end fitting radially outside of and circumferentially enclosing the at least one flexible layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.