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Industry Article: Fiber-Laden Diverter System Improves Stimulation Economics, Enhances Well Performance

Fiber-Laden Diverter System Improves Stimulation Economics, Enhances Well Performance
Publication: World Oil
Publication Date: 11/01/2012

While advanced stimulation techniques are not new in Saudi Arabia, where most current gas production comes from carbonate reservoirs in the eastern part of the country, a novel fiber-laden self-diverting acid system in increasing well productivity almost threefold in some wells. The fluid achieves a balance between induced temporary fracture damage and conductivity. The Schlumberger MaxCO3 self-diverting acid system, which combines degradable fiber and a polymer-free viscoelastic diverting acid (VDA), was first tested in a number of matrix acid stimulation treatments, all of which yielded excellent results. A number of wells in the Ghawar field were stimulated with the new fluid system, covering a wide range of single and multi-stage matrix acidizing and acid fracturing treatments. More uniform stimulation of Saudi’s carbonate formations and reservoirs with high-permeability contrast has been witnessed in more than 50 wells stimulated with the MaxCO3 system.




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