Jadestone kicks off riserless light well intervention campaign at Montara

Jadestone Energy, an independent oil and gas production company, has started a riserless light well intervention (RLWI) campaign at the Montara complex, offshore Australia. 

Sapura Constructor; Source: Sapura Energy

Sapura Energy was last year awarded a contract to undertake the provision of RLWI services for three wells located in the Montara development area. The project will be executed by its DP2 vessel Sapura Constructor, and in-house light well intervention systems including intervention compensation system and subsea intervention device.

Jadestone informed on Monday that the Sapura Constructor light well intervention vessel was mobilized to the field on May 30, 2019, and, after conducting pre-work safety checks, is now operating at the Skua-11 well, as planned.

“The RLWI campaign is a highly engineered work program utilizing leading edge technology; the first time this technology has been deployed in Australia,” Jadestone said.

The program is intended to restore gas lift to the Skua-11 and Swift-2 wells, perforate additional sands in the Swallow-1 well, and unlock new heel volumes in the Skua-11 well.

Paul Blakeley, President and CEO commented: “I’m very pleased to see the start of the RLWI campaign, Jadestone’s first major re-investment project at Montara since acquiring the asset in September last year.

“Using a light well intervention vessel to tackle these early opportunities at Montara is the most cost-efficient approach, when compared with utilizing a drilling rig, and will enhance short-term production reliability and improve uptime performance from the subsea wells. The RLWI has a rapid payback, and is the first of a list of identified investment opportunities to improve Montara’s performance, increasing value and returns to the business.”

Operations on Montara, including the RLWI, are being conducted under the current PTT Exploration and Production Public Company Limited Safety Case and utilizing an operator and transitional services agreement, which will govern the operation and management of the Montara assets and the provision of transitional services until the transfer of operatorship to Jadestone.

In related news, Jadestone has recently completed its infill drilling campaign at the Stag oil field located offshore Australia, which was the first well at the field in six years. The well was then brought online with a production rate of 1,400 bopd.


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