High-integrity pressure protection system Christmas tree
US10221645B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 13, 2017 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Jun 13, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B41/0099
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A high-integrity pressure protection system Christmas tree is provided. In one embodiment, an apparatus includes a Christmas tree, a choke coupled to receive fluid from the Christmas tree, and a high-integrity pressure protection system. The high-integrity pressure protection system includes pressure sensors downstream of the choke, valves upstream of the choke, and a logic solver connected to control operation of the valves of the high-integrity pressure protection system that are upstream of the choke. Further, the valves of the high-integrity pressure protection system that are upstream of the choke include at least two valves of the Christmas tree. Additional systems, devices, and methods are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.