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Artificial Lift Techbook 2016

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ARTIFICIAL LIFT TECHBOOK: TECHNOLOGY 28 | May 2016 | SPOC Automation offers VFD technology to help operators save electricity and eliminate penalties at the well site. In a recent presentation, John Smith of SPOC outlined the benefts of this technology, which include the ability to use NEMA B motors on the pumps, which save about 3% to 5% in energy costs, and the elimination of regeneration. Smith explained that when the heavier side of the beam is moving down, it actually generates energy, but operators don't get credit from the utilities for this. "We talk about optimization, but there are all dif- ferent forms," Seale said. "There's improved control at the wellhead, there's optimizing electricity usage, there's optimizing uptime of the wells, there's opti- mizing delivery for the oil or gas contract—almost every area you can think of can be optimized." Even people can be optimized since these types of auto- mation require fewer visits to the well site, he said. "You can do it all remotely, even having video or camera images at the well site. You can monitor everything remotely no matter where it is." Schlumberger's automation technology can be used on a variety of lift systems, according to Rajkumar S. Mathiravedu, marketing and technology manager for Schlumberger Lift Solu- tions. "Our UniStar downhole protection VSD automation solutions utilize sophisticated algo- rithms to provide real-time control and diagnos- tics of rod-pumped wells," Mathiravedu said. "A variety of control parameters can be employed to protect surface and downhole equipment, pro- viding flexibility for our clients to program and select parameters to meet their desired optimi- zation strategy." ESPs While rod pumps are widely used, Reed said that ESPs are arguably "the number one method of arti- fcial lift," primarily due to the ability of providing range and volume, a necessity in the unconven- tional market. Halliburton brings a strategy to bear on optimizing ESPs in unconventional plays. The Baker Hughes AMBIT system allows ESPs to dynam- ically respond to downhole situations. (Image courtesy of Baker Hughes)

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