【摘要】 为了确定钻井液所含的磺化物成分能否被油井中存在的主要腐蚀性细菌——硫酸盐还原菌( SRB)分解利用 ,研究了在有乳酸钠和无乳酸钠两种情况下 ,SRB对磺化酚醛树脂 型、磺化酚醛树脂 型和磺化褐煤树脂等常用磺化物不同浓度的分解利用情况。结果显示 :这些磺化物能被SRB分解利用 ,放出硫化氢 ;脱硫脱硫弧菌以共代谢方式分解磺化物 ;肠状脱硫弧菌可直接利用磺化物。进一步测定了在有乳酸钠和无乳酸钠时 ,一定磺化物浓度下 ,SRB分解利用磺化物过程中 ,SO2 -4和 H2 S浓度及 SRB菌数的变化。结果表明 :在 SRB对磺化物的分解过程中 ,SO2 -4浓度分别达 1 .81 2 8mg/m L和 1 .0 1 0 mg/m L,H2 S释放量达 0 .0 4 2 8mg/m L和 0 .0 4 0 2 mg/m L ,SRB菌数随之增加到 1 .5× 1 0 9/m L和 7× 1 0 6/m L。此过程产生的硫化氢在油井环境下 ,可对油井套管和金属管道造成腐蚀 ,给石油工业带来潜在危害 ,应给予重视更多还原

【Abstract】 To determine whether or not the sulphonate,one of the components of drilling liquid, can be degradated by SRB which is the major corrosive bacteria in oil field. It is studied that SRB degradates the SMP Ⅰ,SMP Ⅱ and SC Ⅱ and so on, which is the sulphonate in common use with lactate or not. The result shows that these sulphonates can be decomposed by SRB and then emit H 2S and D.Densulfuricans degradates the sulphonate by means of co metabolism and D.orientis. can degradate the sulphonate directly.Simutaneously, the concentration of SO 2- 4 and H 2S and the quantity of SRB are examined during the period of degradation. During the degradation, the concentration of SO 2- 4 is 1.812 8 mg/mL and 1.010 mg/mL, the concentration of H 2S are 0.042 8 mg/mL and 0.040 2 mg/mL, and the quantity of SRB is 1.5×10 9 stains/mL and 7×10 6 stains/mL, accordingly. H 2S can corrode the metal pipe line and double pipe in the oil well, which threatens the oil industry potentially, and much attention should be given to this study.更多还原