Vol.5 No.3 (May 2015)
The Selection and Performance Evaluation of the Scale Inhibitor for a Nanhai Oilfield
Refer to the scaling issue that is caused by produced water reinjection in an oilfield in South China Sea, the effects of several scale inhibitors have been examined by the precipitation gravimetric method using indoor simulated water. Under the conditions of 90˚C for 24 hours, scale inhibitor HYFC-027, HYFC-074, YFFG-037 have better scale efficiency. When the dosing concentration is 30 mg/L, the scale rate can reach 85%. By corrosion experiments and aging tests, all three scale in-hibitors are stable and have no corrosion phenomenon, especially for the 204 stainless steel.
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