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油田水反硝化技术抑制硫酸还原菌

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邵涛, 苟智, 王林. 油田水反硝化技术抑制硫酸还原菌[J]. 环境工程学报, 2013, 7(2): 617-623.
引用本文: 邵涛, 苟智, 王林. 油田水反硝化技术抑制硫酸还原菌[J]. 环境工程学报, 2013, 7(2): 617-623.
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Shao Tao, Gou Zhi, Wang Lin. Denitrification inhibiting sulfate-reducing bacteria activity in oilfield water[J]. Chinese Journal of Environmental Engineering, 2013, 7(2): 617-623.
Citation: Shao Tao, Gou Zhi, Wang Lin. Denitrification inhibiting sulfate-reducing bacteria activity in oilfield water[J]. Chinese Journal of Environmental Engineering, 2013, 7(2): 617-623.
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油田水反硝化技术抑制硫酸还原菌

  • 1.

    中国石化集团江苏石油勘探局环境监测中心站,扬州 225009

  • 2.

    江苏油田分公司试采一厂,扬州 225265

  • 基金项目:

  • 中图分类号: X703

Denitrification inhibiting sulfate-reducing bacteria activity in oilfield water

  • 1.

    Sinopec Group Jiangsu Administration Environment Monitoring Center Station, Yangzhou 225009, China

  • 2.

    Jiangsu Oilfield Company Production Factory, Yangzhou 225265, China

  • Fund Project:

  • 摘要: 利用反硝化技术对江苏油田5个联合站的采出水,进行了添加不同抑制剂的浓度、种类、不同配比和接种DNB菌对SRB、DNB的菌落数量、硫化氢的产生量和氧化还原电位的影响的静态实验。研究结果表明:投加一定浓度的硝酸盐、亚硝酸盐和钼酸盐,对油田采出水SRB的生长都有不同程度的抑制作用,而同等浓度的抑制效果表现为亚硝酸盐>硝酸盐>钼酸盐,同时投加DNB和0.3~0.5 g/L(比例为1∶1)的亚硝酸盐/硝酸盐可较好地抑制油田采出水中的SRB和硫化氢的产生,其中0.5 g/L抑制效果最明显,可抑制硫化氢的产生10 d以上,SRB和硫化氢抑制率分别可达87%和98%。以不同药剂的常压静态腐蚀实验结果表明,抑制剂的腐蚀速率比杀菌剂和缓蚀剂略高,但低于石油天然气行业中标准规定的0.0076 mm/a,也远低于对照样的0.152 mm/a。
    Abstract: The produced water from five joint stations of Jiangsu Oilfield were used to carry out the denitrification static test. The effects of inhibitor addition with different concentrations, forms, ratios and pulsing DNB on bacterial number of SRB and DNB,the amount of hydrogen sulfide and redox potential were studied .The results showed that the addition of nitrate, nitrate and molybdate can inhibite the growth of SBR in oilfield produced water,and with the same concentration, the inhibition effect of nitrite is the best,and nitrate is the second. The addition of pulsing DNB and 0.3~0.5 g/L nitrite/nitrate (the ratio is 1∶1) can effectively inhitite the generation of SRB and hydrogen sulfide,in which the concentration of 0.5 g/L has the best inhibition effect,the time can be more than 10 d, and the inhibition rate of SRB and hydrogen sulfide can reach 87% and 98%, respectively. The atmospheric static corrosion test showed that the corrosion rate of inhibitors is higher than that of bactericide and corrosion inhibitor,but lower than the standard of petroleum and natural gas industry(0.0076 mm/a)and that of the contrast sample(0.152 mm/a).
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  • 收稿日期:  2012-02-13
  • 刊出日期:  2013-02-02

油田水反硝化技术抑制硫酸还原菌

  • 1. 中国石化集团江苏石油勘探局环境监测中心站,扬州 225009
  • 2. 江苏油田分公司试采一厂,扬州 225265
  • 收稿日期:  2012-02-13
基金项目:

摘要: 利用反硝化技术对江苏油田5个联合站的采出水,进行了添加不同抑制剂的浓度、种类、不同配比和接种DNB菌对SRB、DNB的菌落数量、硫化氢的产生量和氧化还原电位的影响的静态实验。研究结果表明:投加一定浓度的硝酸盐、亚硝酸盐和钼酸盐,对油田采出水SRB的生长都有不同程度的抑制作用,而同等浓度的抑制效果表现为亚硝酸盐>硝酸盐>钼酸盐,同时投加DNB和0.3~0.5 g/L(比例为1∶1)的亚硝酸盐/硝酸盐可较好地抑制油田采出水中的SRB和硫化氢的产生,其中0.5 g/L抑制效果最明显,可抑制硫化氢的产生10 d以上,SRB和硫化氢抑制率分别可达87%和98%。以不同药剂的常压静态腐蚀实验结果表明,抑制剂的腐蚀速率比杀菌剂和缓蚀剂略高,但低于石油天然气行业中标准规定的0.0076 mm/a,也远低于对照样的0.152 mm/a。

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