Western Gas has mobilised equipment to the Valaris MS-1 semisubmersible drilling in preparation for drilling the eagerly-anticipated Sasanof-1 exploration well.
The Sasanof Prospect is approximately 200km northwest of Onslow, Western Australia, and the well will be drilled vertically to a total depth of 2500m in 1070m of water.
Commencement of the drilling operations is expected to commence on 24 May 2022, once the rig is on location and anchors have been set.
“We are thrilled to have commenced the mobilisation process for the drilling of Sasanof-1 after multiple years of technical studies, regulatory approvals, contracting and planning. The rig is due to leave port on 16 May, enabling this short duration and high impact well to deliver results by early June. We look forward to working with our partners and contractors to complete a safe and rewarding drilling program,” said Will Barker, Western Gas Executive Director.
SASANOF PROSPECT
The Sasanof Prospect covers an area of up to 400km² and is on trend and updip of Western Gas’ liquids rich, low CO₂ Mentorc Field.
ERCE estimates the Sasanof Prospect to contain a 2U Prospective Resource of 7.2 Tcf gas and 176 MMbbl condensate (P501), with a high case 3U Prospective Resource estimate of 17.8 Tcf gas and 449MMbbl.
Sasanof is a large, seismic amplitude supported, structural-stratigraphic trap in the high-quality reservoir sands at the top of the Cretaceous top Lower Barrow Group formation on the Barrow Delta within the Exmouth Plateau.
Sasanof-1 will be Western Gas’ first well drilled from its extensive exploration portfolio surrounding the existing Equus Gas Project that contains a discovered resource of 2 Tcf and 42 MMbbl (2C Gaffney Cline2). The Equus Gas Project has a historic exploration drilling success rate of 88%, with 15 discoveries from 17 wells.
