To deepen a wellbore with the drill bit. To drill ahead.

用钻头加深井眼，往深处钻进。

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On Thursday (July 8) BP said its operation to drill a new relief well to stop the Deepwater Horizon leak was ahead of schedule.

周四(7月8日)，英国石油公司表示，他们为了停止“深水地平线”继续漏油而打钻的一口新的减压油井将提前完成。

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The strict management system of company and the drill mechanism ahead of time certainly ensure to provide high-quality products, more perfect management system and service to each cooperator.

公司严格的管理体系与超前的训练机制，确保为每位合作者提供更优质的产品，更完善的管理体系与服务。

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The companies are in the process of preparing to drill again in the Gulf in the days ahead.

FORBES: Connect

PDVSA's oil-production technology is now at least five years ahead of Pemex's, particularly in its ability to drill in deep waters and in its use of seismic surveys.

ECONOMIST: The oil industry