Study of Mixed Water Compatibility in Shanbei Oil Production

Abstract:

The properties of mixed waterwater from a certain river (RW) and Chang-6 layer output water (C-6W) -- in Shanbei Oil Production is studied in this paper, including ion content, analysis of scale, scale type and calcium loss rate, etc. It shows that the salinity of C-6W is more than 80000 mg/L, while RWs salinity is about 1200 mg/L; Under 30 °C, the calcium loss rate and amount of scale buildup of C-6W and RW when their volume ratio were 4:6 reached to 9.5% and 36mg/L; while reservoir calcium the loss rate and scale buildup amount reached to 0.59% and 21.5 mg/L when the volume ratio of C-6W and Mixed Water came to 3:7, which satisfies the reinjection water quality standard; and a low core damage rate (<20%) could be found when the reinjection volume is 1 ~ 15 PV.

• Periodical: Advanced Materials Research (Volume 868)
• Pages: 725-729
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.868.725
• Online since: December 2013
• Authors: Jin Li Xue, Cheng Tun Qu, Bo Yang, Fan Liu, Kun Jiao
• Keywords: Oilfield Produced Water, Scaling

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