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ExxonMobil in second oil discovery offshore Guyana

ExxonMobil in second oil discovery offshore Guyana | Offshore Energy Today

Stena Carron drillship used for drilling of the Liza-2, Liza-3, Skipjack and Payara-1 wells; Image source: Hess

ExxonMobil on Thursday reported positive results from its Payara-1 well offshore Guyana. Payara is ExxonMobil’s second oil discovery on the Stabroek Block and was drilled in a new reservoir.

The company said that the Payara-1 well targeted similar aged reservoirs that were proven successful at the company’s Liza discovery for which Exxon in December 2016 awarded a contract to SBM Offshore to supply an FPSO unit. The development plan includes development drilling, operation of the FPSO, and subsea, umbilical, riser and flowline systems.

“This important discovery further establishes the area as a significant exploration province,” said Steve Greenlee, president of ExxonMobil Exploration company.

According to the company, the well was drilled by ExxonMobil affiliate Esso Exploration and Production Guyana Limited, and encountered more than 95 feet (29 meters) of high-quality, oil-bearing sandstone reservoirs. It was drilled to 18,080 feet (5,512 meters) in 6,660 feet (2,030 meters) of water. The Payara field discovery is about 10 miles (16 km) northwest of the 2015 Liza discovery.

Additional resources with Liza-3 well

In addition to the Payara discovery, Exxon informed that appraisal drilling at Liza-3 has identified an additional high quality, deeper reservoir directly below the Liza field, which is estimated to contain between 100-150 million oil equivalent barrels. This additional resource is currently being evaluated for development in conjunction with the ‘world-class’ Liza discovery.

“These latest exploration successes are examples of ExxonMobil’s technological capabilities in ultra-deepwater environments, which will enable effective development of the resource for the benefit of the people of Guyana and our shareholders,” Greenlee said.

Drilling on Payara began on November 12, 2016, with initial total depth reached on December 2. Two sidetracks have been drilled to rapidly evaluate the discovery, and a well test is underway to further evaluate the successful well results. Exxon said the well data will be analyzed in the coming months to better determine the full resource potential.

The Stabroek Block is 6.6 million acres (26,800 square kilometers). Esso Exploration and Production Guyana Limited is operator and holds 45 percent interest in the Stabroek Block. Hess Guyana Exploration Ltd. holds 30 percent interest and CNOOC Nexen Petroleum Guyana Limited holds 25 percent interest.

John Hess, CEO of Hess Corporation, said. “We are excited about Payara as well as the deeper reservoir identified below the Liza Field. While further appraisal is required, we believe that the resources recently discovered are significant and will be accretive to the more than 1 billion barrels of oil equivalent already confirmed at the Liza discovery.”

Hess also said that upon completion of operations on the Payara-1 well, the Stena Carron drillship will move to the Snoek exploration prospect, which is located approximately 6 miles (10 kilometers) south of the Liza-1 discovery well.

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