What is SmartPlug® isolation technology?The SmartPlug® high pressure isolation tool from TDW Offshore Services is specifically designed to isolate a section of pipeline at normal operating pressure. This allows pipeline repairs to be made without pressure reduction or bleeding down the entire system. The SmartPlug® tool can be used to isolate any medium, including gas, crude oil, distillates, treated or untreated water, glycol and diesel. The tool is composed of two independent modules, each of which can fully hold line pressure, creating a true double block isolation.

How is the tool activated and tracked?The tetherless, highly piggable tool is activated, tracked and monitored through use of a proprietary control and communication system. Signals are sent to an extremely low frequency (ELF) transceiver placed near the isolation location. This transceiver provides real time two-way, through-wall data transmission, allowing a remote operator to send commands and receive confirmation of plug conditions and line pressures. Plus, the tool includes an onboard SmartTrack™ system for tracking and accurate positioning.

What other features does the tool offer?The tool is designed to be self-locked in the set position, assuming delta pressure across the tool. So, the higher the

pressure, the harder the plug seals. There is also a redundant unsetting system, and each tool is approved and certified by Det Norske Veritas (DnV).

Is the tool versatile?Very! The SmartPlug® isolation tool has proven itself in nearly 200 applications – both onshore and offshore – thus far, making it a versatile solution for a wide range of needs. These include pipeline valve replacements or repairs, riser replacements or repairs (including flexible risers), and pressure testing and leak detection of risers or repaired pipelines. The tool is also great for midline pipeline repairs and tie-ins, dry tie-ins of risers or pipelines, platform abandonment and bypass, and flex joint isolation for repair.

What advantages can I expect to see?Use of SmartPlug® technology can help eliminate the expense and time associated with de-commissioning and re-commissioning a line. It can minimize the release of gas or hydrocarbon vapors to the atmosphere by eliminating or dramatically reducing blow down. It can also eliminate the need for treatment chemicals and the disposal of contaminated water associated with re-commissioning. In certain scenarios, production can even continue while the tool is in use. l

Below we are answering a handful of questions about one of the innovative products or services offered by T.D. Williamson.

on SmartPlug® Isolation Technology

For more information, visit us at www.tdwilliamson.com.