Via our wholly owned subsidiary SAGE North Sea Limited (SNSL), we operate the ScottishArea Gas Evacuation (SAGE) system, comprising:
The SAGE System is an integrated gas transportation and processing system which transports gas from the SAGE pipeline and Beryl leg to the SAGE terminal for processing. Sales gas is redelivered into the National Transmission System and natural gas liquids are exported into both the Forties onshore pipeline system and the SEGAL system. The SAGE terminal also processes gas from the Britannia pipeline.
We optimise the use of the SAGE System through safe and reliable operations, directly contributing to the energy transition, extending infrastructure life, connecting new fields and delivering strong financial performance.
Our ownership varies by asset component as shown below.
| Terminal | 30.28% | |
| SAGE Pipeline | 30.28% | |
| Beryl Leg | 60.5445% | |
| Capacity | 1990 mmscf/d (main plant 1150mmscfd, STE mmscfd) | |
| NGL Delivery Capacity SEGAL | 2566 te/d | |
| NGL Delivery Capacity FPS | 1500 te/d |
These capacities are under constant review and may be subject to change if existing and future requests for capacity give rise to firm agreements. Any application would be subject to detailed process modelling to ensure operability.
Divided Rights
Capacity in the Beryl Pipeline, SAGE Pipeline and SAGE Terminal is managed on a divided rights basis creating competition within the system and enabling choice for shippers. All requests for capacity must be addressed to the Beryl Pipeline Operator and/or SAGE Operator.
The Beryl Pipeline Operator and SAGE Operator provide technical responses to requests for service and provide common terms on behalf of the Beryl Pipeline Owners or SAGE Owners. Individual commercial terms are provided by Beryl Pipeline Owners or SAGE Owners. Transportation and/or processing agreements are entered into by the successful Beryl Pipeline Owner(s) or SAGE Owner(s).
| Entry Specification | Pipeline | Terminal |
| Cricondenbar pressure | less than or equal to 106 Bara | |
| Water content | less than 63 ppm by volume | less than 63 ppm by volume (4) and (5) |
| Carbon Dioxide (CO2) | less than 22 mol% (1) | less than 7.85 mol% (1) |
| Oxygen Content | less than 7 ppm by volume | less than 7 ppm by volume |
| Sulphur Content | H2S - less than or equal to 500 ppm by volume | H2S - less than or equal to 16.4 ppm by volume |
| Carbonyl Sulphide (COS) | Negligible (2) | |
| Σ(C2 to C12 mol%) / (C1 mol%) | Max 0.27 / Min 0.19 (3) | |
| Maximum Inlet Pressure | 173.4 Bara | 173.4 Bara |
| Minimum Inlet Pressure | That minimum pressure (in Bara) required to ensure that the Gas delivered remains in dense phase until reaching that part of the Processing Terminal where two- phase flow is first designed to occur. | |
| Sediment/metals | Negligible (2) | Negligible (2) |
| Mercaptans | Negligible (2) | Negligible (2) |
| Mercury | Negligible (2) | Negligible (2) |
| Duodecans | Negligible (2) | Negligible (2) |
| Temperature | 50°C max | 13˚ C max 4˚ C min (2) |
| Contaminants | Free from radioactivity, odours (Note 3), other noxious contaminants such as corrosion/scale inhibitors, flow enhancers, alcohol/glycols, hydrate inhibitors, emulsion breaking or stabilising elements or other substances without prior approval from the SAGE Operator |
| Exit Specification | Gas | NGL |
| Gas | To allow entry to the National Transmission System operated by National Grid | To allow entry to the SEGAL and FPS NGL offtake systems |
(1) The SAGE Terminal has amine treatment trains which can remove higher concentrations of CO2. Gas with higher CO2 concentrations may be able to be processed. Please contact the SAGE Operator for further information.
(2) Negligible means that the concentration must be below a level where the relevant species would:
(a) cause difficulties with transportation, processing, safety, facilities integrity in the SAGE System, downstream facilities or meeting redelivery specifications or derivative product specification, or
(b) impair the value or marketability of any ultimate products derived from feed gases entering the SAGE System.
(3) Gas outside this range of ratios may be able to be processed.
Please contact the SAGE Operator for further information
The information on this website provides an overview of the SAGE System and access to it. The information is not fully comprehensive. Despite our best efforts, the information may not be accurate, up to date or applicable to the circumstances of any particular case. Ancala Midstream cannot accept any liability for any inaccuracies or omissions and any decisions you make based on this information are your sole responsibility. We reserve the right to update, modify or remove any part of the information in our website at any time.
Ancala Midstream is not responsible for websites which we link to.
The information on this website does not constitute an offer by Ancala Midstream. We encourage you to contact us if you require further information relating to the SAGE System.
Pipeline Length: 80 km
Capacity : 1100 mmscf/d
Diameter : 30 inch
Commissioned
Tie-In Points:
Pipeline Length: 240 km
Capacity : 1100 mmscf/d
Diameter : 30 inch
Commissioned
Tie-In Points:
Capacity : 1990 mmscf/d
Main Plant Capacity : 1150 mmscf/d
SAGE Terminal Extension Capacity : 840 mmscf/d
CO2 Removal Capacity : 2250 t/d
NGL Separation Capacity : 5328 t/d
Other Connecting Pipelines/Tie-In Points : Britannia field facilities and pipeline
NGL Delivery Capacity SEGAL : 2566 t/d
NGL Delivery Capacity FPS : 1500 t/d
These capacities are under constant review and may be subject to change if existing and future requests for capacity give rise to firm agreements. Any application would be subject to detailed process modelling to ensure operability.
These capacities also may be subject to change if existing and future requests for capacity give rise to firm agreements. Any application would be subject to detailed process modelling of the overall SAGE Terminal to ensure operability.
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.
| Owner | Equity | Capacity |
| SAGE North Sea Limited (Operator) | 60.5445 % | 666 mmscf/d |
| Harbour Energy plc | 39.4555 % | 434 mmscfd |
| Owner | Equity | Capacity |
| Beryl Group comprising: | 50% | 550 mmscf/d |
| SAGE North Sea Limited (Operator) | 30.28 % | |
| Harbour Energy | 19.72% | |
| Brae Group comprising: | 50 % | 550 mmscfd |
| TAQA | 28.08 % | - |
| NEO Energy | 5.25 % | - |
| Spirit Energy | 6.67 % | - |
ALEXIS FLETCHER
Chief Executive Officer
The team is led by Chief Executive Officer Alexis Fletcher. Alexis joined Ancala Midstream Acquisitions Limited from Shell International where he spent over 20 years in a career spanning technical, commercial and governance roles across the oil and gas value chain, with a particular focus on LNG. Alexis was appointed Managing Director of Dragon LNG in 2019, one of the UK’s three LNG import terminals, prior to which he led the Brunei LNG asset management team as a non-executive director and shareholder representative of production and shipping assets.