Artificial lift systems under-perform when faced with unstable slug flows from a horizontal wellbore. Slug flows bring solids issues and pump gas interference which increases operating expenses from poor runtime, excessive workover costs, and inadequate production drawdown. Five years ago, the HEAL System was developed by a producer to address slug flow challenges. Its capability to provide desired production drawdown with artificial lift system reliability has improved horizontal well production performance in hundreds of wells in all the liquids producing basins in Canada and the United States. Key to its success has been an engineered small internal diameter tailpipe positioned in the bend section of a horizontal well. It is important to note that the average internal diameter of these tailpipes is only 25.4mm or 1 inch. Operational low risk placement of such a small internal diameter tailpipe into a bend section was resolved by mechanically suspending small diameter tubes inside conventional robust production tubing. During this past year and contribution from Schlumberger’s considerable resources, HEAL Systems has undergone important downhole tool redesign upgrades. Such upgrades have resulted in lower cost and risks, as well as improved reliability. Testimonials from several producers benefiting from the HEAL System are as […]
