2″ cement lined pipe is in fact only 1.5″ ID and then throw in some 1.5D bends for good measure and you have a real challenge on your hands. Especially if the pressure rating is around 80 bar.
Onshore gathering lines in the US will be a big market in the coming years due to the recent change in PHMSA regulations. i2i will have a beta out in Q1 2017 so look forward to the first application.