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Tang Xiaoyong,Pu Liming
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Issue:ISSN 1006-5539
          CN 51-1183/TE

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    Your Position ：Home->Past Journals Catalog->2011 Vol.3

    Analysis on Injected Water Scaling in Ganguyi Oil Field and its Solution
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    Key Words：Ganguyi Oil Field； POCA； Calcium carbonate scale； Scale ions； Scale-inhibiting effect
    Abstract： It is found that there is scale in water injection pipelines of Ganguyi Oil Field. Predicted and analyzed is the change rate of scaling ions in water injected into pipelines according to the scaling tendency and confirmed is the scaling tendency further. Results from analysis on the scaling things show that scaling things are calcium carbonate scales. Selected are some scale inhibitors in laboratory according to such scaling situations， comparatively analyzed are anti-scaling rates of different scale inhibitors in same experimental conditions， selected further is the optimum scale inhibitor of POCA and test are the effects of pH value and temperature on scale inhibition effects of POCA. The results show that POCA can inhibit scaling obviously and the practices at site show also that there is no new scales appearing in water injected into pipelines after two months of POCA injection， previous scales disappear also and the scale inhibition effect is very obvious.
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