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New approach replaces jetting to deepen structural casing based on fracture gradient; builds on proven, casing-drilling technology, and creates a more favorable wellbore geometry to more frequently meet well objectives.

HOUSTON , May 2, 2022 /PRNewswire/ -- Subsea Drive Corporation, in conjunction with Blade Energy Partners and Frontier Oil Tools, is proposing a Joint Industry Project (JIP), to initiate development and commercialization of a new approach to deepwater casing design.

"We felt the optimal approach for introducing this technology to deepwater operators was a JIP presenting the technology to the key players at a single venue," said Steve Rosenberg , Subsea Drive chief technology officer. "Over the past decade, we have authored several papers and industry articles receiving positive feedback from deepwater experts. We see the potential to completely replace a traditional process with something far more effective, efficient, and safer."

This approach eliminates a major deficiency of deepwater well design: shallow setting depth of structural casing, being restrained by jetting technical limitations.

Subsea Drive uses proven casing-drilling technology to replace jetting taking advantage of the rapid increase in the shallow fracture gradient. They are building a 36-in. casing-drive to enable drilling in a full string of 36-in. casing, or a tapered 36 x 28-in. string, to depths based on the fracture gradient, of 1,500 ft or more below the mudline. "This single-trip casing drilling system will eliminate one or two riserless casings, mitigate shallow hazards, push the high-pressure wellhead casing deeper, and enable favorable well geometry for expansion of the drilling operating pressure windows at deeper depths, providing a better opportunity for a successful outcome," added Jim Wakefield , Subsea Drive VP of engineering and well construction.

A meeting of prospective candidate participants, including E&P operators, drilling contractors, OEM equipment suppliers, service companies, regulatory organizations, and industry societies will be held June 29, 2022 at the Norris Conference Center, at City Centre, Houston, Texas . Contact Subsea Drive for event and registration details.

About Subsea Drive Corporation: Subsea Drive Corporation was formed in 2021 to commercialize innovative well engineering and drilling technology concepts created by a core team of oil and gas industry experts with many years of broad and deep upstream experience.

For more information, contact: Steve Rosenberg [email protected] 713-449-4211

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