W&T Offshore brings well on stream at Mahogany field in Gulf of Mexico

W&T Offshore Inc., Houston, started production on Jan. 17 from the Ship Shoal 349 A-18 well at Mahogany field in the Gulf of Mexico.

The well is ramping up to full rates and thus far has achieved a production rate of 3,275 b/d of oil and 5.6 MMcfd of natural gas for a total of 4,200 boe/d at a flowing tubing pressure of more than 9,000 psi. The company expects to increase the A-18 production rate to more than 5,000 boe/d consistent with its reservoir management plan.

W&T earlier this month reported that the SS 349 A-18 well logged 149 ft of net oil pay in five zones and extended the size and depth of Mahogany field (OGJ Online, Jan. 6, 2017). The well was completed in the main objective 'T' sand, with future recompletion opportunities to additional pay zones available in the well.

The deep shelf subsalt well was drilled to a TVD of 20,000 ft in 372 ft of water on the western side of the field.

“With its high-quality rock properties, including very high porosity and permeability, we anticipate strong production rates from this well for years into the future,” commented Tracy Krohn, W&T's chairman and chief executive officer. “Our SS 349 A-14 well that originally discovered the 'T' sand in July 2013 has produced a total of 3.8 [million] boe gross from the 'T' sand to date."

W&T’s 2017 capital budget includes the drilling and completion of three additional wells at Mahogany. “We have multiple 'P' sand, 'T' sand, and 'Q' sand targets, and the thick stacked pay sands that will offer drilling and recompletion opportunities for years to come," Krohn added.

Tom Murphy, W&T's chief operating officer, said, "The A-18 well has exceeded our pre-drill production rate expectations.  Initial indications are that the A-18 well is located in the same large reservoir as the original 'T' sand discovery well, the A-14. This provides excellent encouragement for our expansion plans in this reservoir including exploitation of the newly discovered 'U' sand."

W&T holds 100% working interest in Mahogany.

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