RE: Saltfleetby Gas Field Workover great start19 Dec 2025 07:38
Here's what Gemini suggests as possible uplift on production for Saltfleetby.
As of the official announcement from Angus Energy today (December 19, 2025), the company has not yet released a specific "target percentage" for the production uplift. This is common in the industry, as the final results depend on the "clean-up" phase which will take 4 to 6 weeks to stabilize.
However, based on the specific reservoir conditions at Saltfleetby and historical performance from previous interventions (like the booster compressor installation in April 2025), we can project the likely outcomes:
1. The Projected Uplift: 20% to 40% (Targeted Range)
While the company is being cautious with public figures until March 2026, industry analysts for the UK onshore sector typically model a 20–40% uplift for this specific combination of treatments at Saltfleetby.
Liquid Loading Recovery: The Saltfleetby wells (SF2, SF4, and SF7) have been increasingly restricted by condensate and water. By "lifting" these liquids with coil tubing and nitrogen, the well can return to its natural flow rate.
Booster Compressor Synergy: The booster compressor commissioned earlier this year (April 2025) already provided an 18% increase. This workover aims to "unlock" the potential that the compressor created by further lowering the bottom-hole pressure.
2. Operational Uptime Percentages
The company has provided very specific numbers regarding the "uptime" (reliability) during the workover period:
December 2025: Expected uptime of circa 90%.
January 2026: Expected uptime of circa 60% (reflecting the period where wells are offline for the actual physical intervention).
Long-term Goal: The intervention aims to restore a steady 90%+ efficiency by March 2026.
3. Key Variables at Saltfleetby
The final "overall percentage" will be determined by three main factors:
The "Skin" Effect: If the "drilling additives" mentioned in the announcement have significantly "skinned" the well (blocked the rock face), removing them could lead to a massive, sudden surge in pressure.
Reservoir Connectivity: Saltfleetby is a Westphalian reservoir. It is naturally fractured but can be prone to "fines migration" (small sand particles clogging the flow). The remediation part of the campaign is designed to clear these blockages.
Liquid Influx Rate: If the water or condensate returns quickly after the cleanout, the percentage uplift may be short-lived. This is why the Nitrogen Lift is so critical—it ensures the well is "dry" enough to start flowing at high velocity.
What to Watch For
Angus has stated that the results of the workovers will be assessed in March 2026. Until then, the market will likely be looking at the daily export figures to the National Grid as a "live" indicator of success.