Patent ID: 9255446
Filing Date: 2016-02-09
CPC Classification: E21B

Claim Text:
1. A system with a pre-positioned capping device attached to a wellhead for a drilling rig, comprising: at least one blind shear ram; an independent power source to operate the ram without relying on rig power; an independent management system offsite of the rig and that receives wellbore data from an independent control system and sends command signals to the independent control system in order to actuate the ram without use of the rig; and a first transducer connected to the pre-positioned capping device by a cable and disposed to facilitate communication between the independent management system and the independent control system should access to the rig be restricted, wherein placement of the first transducer is at a greater distance away from the pre-positioned capping device than a second transducer in communication with a rig control system.