The program, which will include a production hub at the Blythe field, is targeting peak output of around 140 MMcfe/d from 2P reserves of 302 bcfe and 2C resources of 108 bcfe.
Detailed design has progressed for the two Phase 1 normally unmanned installation (NUI) platforms and fabrication has started. This work will be converted once IOG has received approval for its field development plan.
The company has ordered most of the bulk materials for the pipelines connecting the platforms to the subsea Thames 24-in. export line, with pipelay potentially starting in the second half of this year.
IOG also has an agreement in principle to acquire two subsea wellheads, trees and associated equipment, with one set to be used on the Elgood subsea well and the other available for Harvey or other incremental satellite development opportunities.
A well management company is in place to support Phase 1 drilling, which will comprise three wells at the Southwark field, one at Blythe and one at Elgood. The contractor will serve as operator of the development drilling.
In addition, IOG is assessing proposals from several contractors to supply the jackup drilling rig. The company expects the current commodity price volatility to lead to more favorable rig/offshore services costs.
Refurbishment of the Thames reception facilities at Bacton on the Norfolk coast is proceeding with engineering contractor Worley progressing FEED studies.
Elsewhere in the southern gas basin, IOG is conducting further seismic reprocessing and interpretation on its Vulcan Satellite, Goddard and Abbeydale fields and accumulations, to advance subsurface mapping and progress detailed well design.
The company has applied for licenses within tieback range of the Thames pipeline under the UK’s 32nd Offshore Licensing Round.