Slow Flow Back
"In general, the practice of managing flowback to protect a fracture job in a horizontal well is not new. Gas producers working the Haynesville Shale, a relatively soft formation in Louisiana, learned several years ago that managing the release of flowback often meant the difference between a live well and a dead one.
Crafton, who is also an SPE distinguished lecturer and author of several SPE papers on flowback, coined the term “slowback” to describe how his clients in the Haynesville managed to overcome their early failures. While working for an operator there, he found that crews were being paid bonuses to get the flowing surface pressure of gas wells from 1,000 psi to 2,000 psi down to the line pressure of 300 psi within 36 hours.
“I started looking at the production histories and you could see these were awesome completions,” he said. “But when they would impose that…




Mr Shellman,
I agree exporting US oil and natural gas resources seems to be a very bad idea. I imagine natural gas will start to run short within 5 years so that LNG expoters will find they have stranded assets which is unfortunate. The only reason I try to estimate EUR per lateral foot is to show that well productivity per lateral foot completed may be decreasing rather than increasing in the Marcellus shale gas play.