Western Gas to drill Sasanof-1 off west Australia
Western Gas on July 9 said it is scheduled to drill the Sasanof-1 exploration well offshore Western Australia early next year. The company operates exploration permit WA-519-P.
The Sasanof prospect is on-trend and updip of the Mentorc gas and condensate field and nearby the Scarborough and Io-Jansz in the Carnarvon basin, the company said. Sasanof-1 will be Western Gas’ first well drilled from its exploration portfolio surrounding the existing Equus gas project that contains a discovered resource of 2 trillion ft3 and 42mn barrels.
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Western Gas has secured the Valaris MS-1 mobile offshore drilling unit to drill the well. Drilling will commence around mid-February 2022, subject to approvals, with an estimated total campaign duration of 25 days, the company said. Sasanof-1 will be a vertical well and drilled to a total depth of approximately 2500 m in 1070 m of water. The drilling campaign is estimated to cost $20mn.
Western Gas has contracted Norwegian well engineering and drilling management company AGR to manage the Sasanof drilling campaign. An environment plan for the exploration well has been submitted to the National Offshore Petroleum Safety and Environmental Management Authority (NOPSEMA) for assessment, it added.