Patent ID: 8550167
Filing Date: 2013-10-08
Classification: E21B

Abstract:
1. A remote operated vehicle (ROV) interface for transferring torque from an ROV to a shaft of a subsea well device, comprising: a permanent module adapted to be coupled to the shaft of the well device to transmit rotation of the permanent module to the shaft; retrievable module having drive and driven members coupled together by a shear element for rotation in unison, the driven member being releasably coupled to the permanent module for transmitting rotation of the driven member to the permanent module; the drive member of the retrievable module having a polygonal portion engageable with a drive tool of the ROV to cause the drive member, the driven member, and the permanent module to rotate in unison to drive the shaft; an ROV retrieval profile on the retrievable module for engagement by a retrieving tool of the ROV; and wherein the drive and driven members are retrievable together by the ROV while the permanent module remains attached to the shaft.