Sasanof-1 Exploration Drilling

Closed 9 Aug 2021

Opened 8 Jul 2021


Full details of this EP including published Documents.
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Western Gas plans to drill the Sasanof-1 exploration well in Exploration Permit WA-519-P, located in Commonwealth waters in the Carnarvon Basin offshore Western Australia.

Drilling will commence at the earliest in Q1 2022, subject to approvals, vessel availability and weather constraints, with an activity duration of approximately 25 days. The Sasanof-1 location is about 207 km northwest of Onslow. Approximate water depth at the location is 1070 m.

The Sasanof-1 well will be drilled using a semi-submersible mobile offshore drilling unit (MODU), which will be anchored to the seabed or, depending on rig availability, a dynamically positioned MODU may be used as an alternative. Activity support vessels will include general supply/support vessels and anchor handling vessel(s). The activity will also be supported by helicopter operations, primarily for passenger transfers/crew changes and minor supplies, but may also be used in the event of an emergency evacuation. Remotely operated vehicles will also be used.

For the duration of drilling activities a 500 m temporary Petroleum Safety Zone will be in place around the MODU and a 5 km radius temporary Operational Area (Cautionary Area) will be in place around the well location. Drilling activities will be undertaken 24 hours per day, 7 days per week.

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