Abstract:

Based on the situation that BHSZ36-1 oilfield polymer preparing water has high hardness and viscosity loss, the softening capacity of weak-acid type and thin-shell type ion exchange resin BHS-1 has been studied by static and dynamic experiments. The experimental results show that the BHS-1 has good temperature resistance 75 ℃, salinity resistance 20 000 mg/L, hardness resistance and anti-iron property. Under oil reservoir conditions, the leakage point of resin would surely appear after 7 h or longer, having pretty good capacity of calcium removing. The iron-resistance experimental results of resin BHS-1 show that with the increase of iron ions concentration in raw water, the leakage point would appear earlier. The resin produced water leakage will almost not occur within 5 h, and it is liable to regeneration with no iron pollution problems.

Key words: ion exchange, weak-acid type resin, offshore oilfield, water softening

摘要：

针对渤海绥中36-1油田配聚水硬度高、黏度损失大的问题，通过静态与动态试验研究了弱酸薄壳型离子交换树脂BHS-1的软化性能。结果表明：该树脂耐温可达75 ℃，最高耐矿化度可达20 000 mg/L，耐铁可以达到5 mg/L。在油藏条件下，树脂的泄漏点能保证在7 h以上，具有良好的除钙能力；BHS-1树脂的耐铁性试验结果表明：随着原水中铁离子浓度的增大，泄漏点将会提前。在铁离子达到5 mg/L时，树脂在5 h内产水基本不发生泄漏，且容易再生，不会产生铁污染问题。

关键词: 离子交换, 弱酸型树脂, 海上油田, 水软化

CLC Number: 

• TE54

• TQ085