A new kind of drillship, contracted by Chevron, is about to begin drilling in the Gulf of Mexico, the company said. The ship is equipped with a dual-gradient system that allows oil and natural gas firms to quickly recognize and respond to well-bore pressure changes. Dual-gradient drilling "has the potential to change the way deepwater wells are drilled," said George Kirkland, Chevron's vice chairman and executive vice president of upstream and gas.

Related Summaries