New Online Shunt Acidification for Water Injection Increasing Technology and Its Application in Huanjiang Oilfield

Figure 2

The solubility of water-soluble white particles. (a) Diverting agent + tap water; (b) diverting agent+10 ml of chelate acid; (c) 100 ml of fresh water is added for the first time, pH<1; (d) 300 ml of fresh water is added for the second time, pH = 4; (e) 500 ml of fresh water is added for the third time, pH = 5; and (f) 1000 ml of fresh water is added for the fourth time, pH = 7.

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