Permian Basin 2017

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PERMIAN BASIN: TECHNOLOGY | November 2017 | 59 in range—essentially you can water the well out or knock it offline," Padalecki said. "That leads to lost production time as you get it back online. In the worst case you can actually change the production ratios of the child well and damage the estimated ultimate recovery of the parent well." In the "Second Unconventionals Revolution" white paper, Halliburton's Priyesh Ranjan wrote that "to address this challenge, stimulations of infills will be combined with parent refracs to help increase pad recovery and mitigate the current ongoing self-destruction of assets. By refracturing parent wells before stimulating the infill well, we will be able to pressure up the pressure-depleted areas around the parent well, and mitigate well bashing from the infill wells." While fracturing technology has seemingly reversed the Peak Oil theory, the majority of hydro- carbons still remain trapped in formations, elud- ing producers as they deal with the reality of water flow and pressure reductions during completion and production. Well interference is just one more example of harsh realities. "Physics is physics," Padalecki said. "When you put a frack on a child well in older areas, pressure depletion will affect the child well and the parent well. It will come up more and more, and we will have to deal with it." Jets: A smooth move Weatherford's Humberto Machado's particularly passionate about one oilfield technology that was first introduced in the Permian Basin in the 1970s. Machado, global technical sales manager for Weatherford, believes that adapting older tech- nologies—specifically jet lift—to unconventional completions and production makes sense oper- ationally. Economically, the mature technology

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