Last post. We have been drilling wells for a LONG time for Natural Gas. Most wells up until now are under fairly high pressure, like the Macanudo Well in the GOM. When we drill those wells we use a different technique to control the gas, but it still involves cementing the bore. Fracking simply adds a new step. To release the high pressure gas we have to Frack the rock layer. Wells are also typically done by a combination of companies, each specialists in their area. Mostly people are familiar with the Drilling companies themselves but for instance Halliburton is a specialist in the Cementing area (a very specialized part of the process) and other specialties, like Mud Logging is done by companies like Horizon http://www.pioneerdrlg.com/ http://www.halliburton.com/ps/Default.aspx?navid=1&pageid=23&prodgrpid=MSE::1045760969203789 http://www.horizon-well-logging.com/ http://oilandgas-investments.com/2010/investing/investing-in-fracking-companies/ The Fracking crew are specialists and come in after the well has been drilled and cemented. Now you can cause a problem several ways. One is by an improper Cement Job, and that applies to BOTH well types. One is by an improper Fracking operation, generally meaning doing it at the wrong depth, too much pressure etc. One is by improper Well Control, which the shutting in of this well is what ulimately allowed the error in well construction to reach the water table. This was a bad Cement Job and bad Well Control, not a bad Fracking operation. I know you are blind to the difference. 1. Fracking [completely] past the concrete is a normal result in a well that is constructed properly. <== No, it's the result of a BAD CEMENT JOB even when the Fracking was done properly. 2. Fracking [completely] past the concrete is a trivial result. <== No, it's the result of a BAD CEMENT JOB even when the Fracking was done normally. 3. Poor construction had nothing to do with it. <== No, it was a BAD CEMENT JOB, the Fracking crew however did their job normally. 4. Human error had nothing to do with it. <== No, the Mud Pushers make a BAD CEMENT JOB and worse, they didn't recognize that they had done so 5. It is correct, and appropriate to frack a well that has been cemented improperly. <== The Mud Pushers thought they had cemented it properly and allowed the Fracking crew to proceed. That was one of the two human errors. At least the Fracking was done properly. 6. That if the fracking procedure states "First seal the well to this standard, then frack", and they do not seal to that standard, that the frack has been done improperly. <== The Mud Pushers thought they had sealed it. They told the Frackers they could proceed. The problem is they hadn't, that's why the error was a BAD CEMENT JOB, but at least the Fracking crew didn't screw up their operation. To put it in perspective, the people who Cement the Well aren't typically the same people that do the Fracking. For instance in the Macanudo well, the Cementers worked for Halliburton, the people drilling and controlling the well worked for TransOcean and the BOP that failed was made and serviced by Cameron International.