TECHNICAL
Beryl & SAGE Pipelines
SAGE TERMINAL
Technical information
Introduction
Ancala Midstream own substantial interests in and operate the Beryl Pipeline, SAGE (Scottish Area Gas Evacuation) Pipeline and SAGE Terminal (SAGE System). The SAGE System is an integrated gas transportation and processing system with a nominal capacity of one thousand one hundred and fifty standard cubic feet of gas per day capacity from the Northern and Central North Sea. Gas is redelivered to shippers at the entry point into the National Transmission System at St Fergus and NGLs are redelivered to shippers at the entry point to the Forties onshore pipeline system and the SEGAL system.
BERYL & SAGE PIPELINES
Overview
The Beryl pipeline transports gas through a 30 inch nominal bore pipeline from the Beryl area to the SAGE pipeline wye in the Central North Sea where it connects to the SAGE pipeline transports gas from the Beryl pipeline and Brae pipeline 323 kilometres to the SAGE Gas Processing Terminal at St Fergus, about 48 kilometres north of Aberdeen.
The Beryl and SAGE pipelines have nominal capacity of 1100 million standard cubic feet of gas per day.
01
SAGE Terminal
The main SAGE Terminal at St Fergus nominal treatment and processing capacity of 1150 million standard cubic feet of gas per day in the main plant. In 1995 the SAGE Terminal Expansion (STE) was added providing a further nominal capacity of 840 million standard cubic feet of gas per day.
Capacity Summary
| Main SAGE Terminal | 1150 mmsf/d |
| STE | 840 mmscf/d |
| NGL capacity | 5300 tonnes/day |
| CO2 Capacity | 2500 tonnes/day |
| H2S gas treatment | >3ppm |
02
Access
The SAGE System can be accessed by shippers through new or existing infrastructure such as:
- Alvheim
- Alvheim tee
- Beryl platforms
- Brae pipeline system
- Britannia platform
- Edvard Grieg platform
- Golden Eagle
- Gryphon
- MacLure
- Scott
1 Britannia to St Fergus
2 Golden Eagle to Ettrick PLEM 6” – 18.5km
3 Ettrick ‘Hot Tap’ 12” – 85.8km from St. Fergus Spare 12” Connection
4 Ettrick to ‘Hot Tap’ 6” – 6km
5 Scott ‘Tee’ 16” – 148km from St. Fergus & Subsea Pig receiver
6 Cromarty to Atlantic Flowline 12” – 12km
7 Atlantic to St. Fergus Flowline 16” – 80km
8 Scott to ‘Tee’ 10” – 13km
9 Brae ‘Wye’ – 240km from St. Fergus
10 Brae Crossover to Wye 30” – 23km
11 Brae Crossover 350m from E Brae
12 Brae B to E Brae 18” – 14.6km
13 Tee 16” – 312km from St. Fergus 13.3km from Beryl A
14 Leadon Pipeline System (LPS) Gryphon to Beryl A 16” – 21km
15 SSIV Assembly
16 New PLEM (connects to spare 12” branch in Alvheim PLEM
17 Edvard Grieg to Alvheim PLEM 16” – 93km
18 Multiphase pipeline – 8km
19 Alvheim to SAGE Tee 14” – 38.5km
03
Available Capacity
It may be possible to increase the ullage available or alter the entry specifications by de-bottlenecking the SAGE Terminal. SAGE Owners would be prepared to investigate the potential on the basis that applicant fund both the necessary engineering studies and any subsequent modifications to the Terminal.
Legend
| N | No capacity |
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< 5% |
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< 5% to 25% |
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> 25% |
Beryl Pipeline |
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| 2018 | 2019 | 2020 | 2021 | 2022 | |
| Transportation Capacity |
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SAGE Pipeline |
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| 2018 | 2019 | 2020 | 2021 | 2022 | |
| Transportation Capacity |
• |
• |
• |
• |
• |
SAGE Terminal (Main) |
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| 2018 | 2019 | 2020 | 2021 | 2022 | |
| Gas Treatment |
• |
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• |
• |
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| CO2 Extraction |
• |
• |
• |
• |
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| NGL Extraction |
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• |
• |
• |
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SAGE Terminal Expansion (STE) |
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| 2018 | 2019 | 2020 | 2021 | 2022 | |
| Gas Treatment |
• |
• |
• |
• |
• |
| NGL Extraction |
• |
• |
• |
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TECHNICAL INFORMATION
01
Schematics
02
Specifications
02
Commercial
News
Ancala Midstream secures multi-million-pound gas-processing contract with Zennor
Ancala Midstream Acquisitions (“Ancala Midstream”) has secured a life-of-field contract to process the gas sourced from the Finlaggan field owned by Zennor Pathway (“Zennor”). The gas will be processed through Ancala Midstream’s Scottish Area Gas Evacuation (SAGE)...
New Acquisition
20th November 2017 Ancala Midstream is pleased to announce completion of its acquisition of SAGE North Sea Limited from Apache Beryl 1 Limited.