Definition(s)
ROT
Remotely operated tool.
Source: API Recommended Practice 17H, Remotely Operated Tools and Interfaces on Subsea Production Systems, Second Edition, June 2013 (Addendum 1, October 2014). Global Standards
Source: API RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. Global Standards
Source: API RP 17H, Remotely Operated Vehicle (ROV) Interfaces on Subsea Production Systems, First Edition, July 2004 (Reaffirmed January 2009). Global Standards
ROT
ROTs are defined as dedicated, unmanned, subsea tools used for remote installation or module replacement tasks that require lift capacity beyond that of free-swimming ROV/AUV systems. Complete ROT intervention systems typically consist of wire suspended tools with a dedicated control system and support/handling system. ROTs are typically deployed on liftwires or a combined liftwire/umbilical. Some ROTs are also designed for deployment on drillpipe. Lateral guidance of the tools may be via guidelines, dedicated thrusters and/or ROV assistance.
Source: API RP 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, Fourth Edition, Reaffirmed 2011. Global Standards
ROT
Remotely operated tool (see ISO 13628-9).
Source: API SPEC 17D, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Upstream Segment, Second Edition May 2011 (Errata September 2011). Global Standards