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Regulator Clears Environment Plan For Sasanof-1 Well  | Rigzone
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Regulator Clears Environment Plan For Sasanof-1 Well  | Rigzone

Western Gas, an oil-and-gas company, announced that NOPSEMA (Australian Offshore Regulator) has accepted its Environment Plan to oversee activities for the Sasanof-1 Exploration Offshore well.

Exploration Permit WA-519 P – The Sasanof-1 exploration drilling well is located in Exploration Permit WA-519 P. This permit is owned and operated by Western Gas (519 P) Pty Ltd., a subsidiary company of Western Gas. The well is located approximately 130 miles north-west of Onslow in Commonwealth waters, in the Carnarvon Basin.

According to the Environment Plan drills will be started as soon as possible in the first three quarters of 2022. However, drilling could take place anytime between the first and fourth quarters of 2023 depending on weather conditions and approvals.

The company stated that a more precise date for the start was March 2022 or April 2022. Western Gas will use the Valaris MS-1 semisubmersible drilling rig after it is relocated from activities on the North West Shelf. Drilling costs range from $20 to $25 million.

Western Gas said that Sasanof-1, a vertical well, would be drilled to an approximate depth of 8,200 feet in approximately 3,500 feet water. This would provide a low cost, high-impact exploration well within a well-known and proven hydrocarbon region. Drilling is expected to take around 25 days.

The Sasanof Prospect is on-trend. It is located near the giant gas fields Scarborough and Io-Jansz, in the Carnarvon Basin.

Sasanof has a 2U Prospective Resources of 7.2 trillion cubic yards of gas and 176,000,000 barrels condensate. There is a 32 percent chance that it will succeed. The high-case 3U Prospective Resource estimate includes 17.8 trillion cubic yards of gas and 449,000,000 barrels of condensate. (P10)

“Regulator acceptance of the Environment Plan for Sasanof is a major achievement for the Western Gas team and our service providers, Xodus and AGR,” said Will Barker, Executive Director of Western Gas, said.

“It reflects a collaborative and focused effort and gives us the confidence to progress through the final stages of Regulatory approvals and detailed planning for the well,” he added.

It is worth mentioning that Global Oil and Gas completed the purchase of 25% of Western Gas (519 P) Pty Ltd in November 2021. Global Oil and Gas will fund 50% of the Sasanof-1 cost and issue Western Gas around $2.2 Million in performance shares.

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