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Safety system for deep water drilling units using a dual blow out preventer system
Safety system for deep water drilling units using a dual blow out preventer system
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机译:使用双重防喷器系统的深水钻井装置安全系统
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摘要
A dual-BOP or multi-BOP self-standing riser configuration is disclosed, including at least a riser or another similarly fixed tubular structure disposed in communication with an associated drilling vessel and a subsurface well. The system supplements the traditional mud-line level BOP with one or more additional near-surface BOPs, which are tensioned using an adjustable buoyancy chamber rather than by means of a vessel-born tensioning device.
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