RNS2 May 2023 10:00
For those not seeing RNS - GOOD NEWS AT LAST
Production: Blythe H1 well
· The current gross unconstrained H1 production rate is approximately 17 mmscf/d
· Over 2023 year to date, average gross production has been 14.9 mmscf/d, factoring in liquid letdowns alongside other Bacton gas streams and planned H2-related shutdowns
· Operating Efficiency year to date has been 95.4% and Production Efficiency 86.4%¹
· Safe hook-up and commissioning of the H2 well is expected to require 3-5 days of planned downtime in both May and June respectively
Drilling: Blythe H2 well
· Substantial progress made in resolving the well control challenge in the Hauptdolomit formation above the reservoir highlighted on 18 April, limiting the likelihood of needing a sidetrack
· The situation has been uniquely challenging given the confluence of abnormal formation pressure with an influx of hydrocarbons, drilling fluid losses, the bottom-hole assembly becoming stuck and drill string being plugged
· However, close collaboration between key IOG personnel and the Petrofac and Shelf Drilling teams has enabled the latter two issues to be resolved, materially improving the situation
· Two cement plugs as well as specialist Lost Circulation Materials have been deployed, significantly mitigating the drilling losses
· The 8½" hole section has been drilled to a revised depth and 7" liner will be run and cemented to isolate this section, enabling continuation of drilling into the reservoir as planned
· On that basis, the well is targeted onstream by the end of Q2, at an estimated additional cost impact of £2-3 million net to IOG
o The initial well cost estimate was £13 million net to IOG, including associated platform modifications, before any potential tax shelter or investment allowances
· In a success case, H2 would deliver several key benefits:
o Gas production rates initially expected at 30-40 mmscf/d after a ramp-up a period of displacing liquids in the Saturn Banks Pipeline System
o Lower aqueous liquid arrivals into Bacton, reducing associated operating costs
o Increase in ultimate recovery of Blythe gas reserves
Corporate
· The Company held £31.9m in cash at the end of April, of which £6.8m was restricted
· Given the current lack of Southwark production, management continues to carefully control costs, assess all future capital allocation and evaluate options to optimise the balance sheet