Patent ID: 8746346
Filing Date: 2014-06-10
Classification: E21B

Abstract:
1. A subsea well apparatus, comprising, a subsea tree having a hydraulically-operated valve; and a control module with the subsea tree; a hydraulic line extending from the control module to the hydraulically-operated valve to operate the hydraulically-operated valve; an input receptacle in fluid communication with the control module and in selective fluid communication with a utility skid on a remotely operated vehicle (ROV), so that hydraulic fluid from the ROV is selectively supplied to the control module; an output receptacle in fluid communication with a hydraulic fluid return line extending from the control module and configured to direct hydraulic fluid to an external device; a subsea tree electronic module on the subsea tree that is controlled by an ROV electronic module on the ROV by signals communicated to the subsea tree electronic module from the ROV electronic module via a control line, and by power from a power source on a vessel via an electrical line that is part of a workover umbilical that has an end connected to a hydraulic fluid source.