Coiled Tube fracking consists of using a Coiled Tubing Unit (CTU) to set bridge plugs, perforate and using CTU packers to frack against. If one uses larger diameter Coiled Tubing, you do not run into the severe pressure drops across the ball drop seats of the frack sleeve type completions.
The "rate" you pump the frack jobs at is by far the most important factor of all in regards to the most effective frack jobs in the Bakken and Three Forks. Higher rates = way better fracks. That's why so many operators are going to cemented liners these days versus frack packers and sliding sleeves. Plus, it gives you flexibility in going back and re-completing the wells down the road way easier than utilizing frack packers.
Coiled tubing fracking is just a variation of cemented liners "plug and perf" completions.This is a great note; I've added to my "Trackin' the Frackin'" page.
My guess is the day of sliding sleeves/frack packers is rapidly coming to an end in North Dakota.
Coiled Tube fracking became a "big deal" when it was discussed at length in Whiting's 1Q14 earnings conference call.
