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Gao Z.,Yanchang Petroleum Group Research Institute Co. | Duan Y.,Yanchang Petroleum Group Research Institute Co. | Wu J.,Yanchang Petroleum Group Research Institute Co. | Qiao H.G.,Yanchang Petroleum Group Research Institute Co. | And 2 more authors.
Drilling Fluid and Completion Fluid | Year: 2013

In order to select optimum foaming agent of CO2 acidic crosslink foam fracturing liquid, three types of foaming agents are prepared in the laboratory in consideration of Yanchang oilfield reservoir characteristics. YCQP-1 foaming agents is proved to be the best foaming agent which has good compatibility with Fracturing Liquid. The optimum concentration is 0.4%, in this condition the foaming agent has good salt, oil, acid, temperature resistance properties. The experiment proved that the percentage of foam quality is 79.59% and the foam stability time is 110 min after adding foaming agent in fracturing Liquid system.

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