Subsea system and method for high pressure high temperature wells
US10392907B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2016 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Sep 23, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0007
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In accordance with the present disclosure, a full top-to-bottom subsea system and method used to drill, complete, produce, and perform interventions on HPHT subsea wells is provided. The disclosed systems and methods involve the use of a controlled multiple barrier system, such as a high integrity pipeline protection system (HIPPS), incorporated into the subsea system to divide the system into two sections. The sections on either side of the barrier may be rated for different pressures, temperatures, and/or flow rates. For example, the first section (upstream of the barrier) is rated for operating at pressures/temperatures/flow rates up to a first (higher) threshold. The second section (downstream of the barrier) is rated for operating at pressures/temperatures/flow rates up to a second (lower) threshold. The disclosed subsea production system methodology, which uses barriers to divide the system components between two pressure ratings, may allow for enhanced development of HPHT reservoirs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.