油田含聚回注水多功能处理剂的研究与评价

Study and Evaluation of Multi-functional Treatment Agent for Polymer-containing Reinjection Water in Oil Fields

为缓解油田含聚采出水中细菌超标对油田开发带来的危害,研究出了一种多功能处理剂。该处理剂以合成出的非氧化型吡啶酮季铵盐杀菌剂为主剂,再复配一定比例的渗透型杀菌剂异噻唑啉酮和聚环氧琥珀酸钠阻垢剂,得到对油田含聚回注水具有杀菌、缓蚀、阻垢等多种功能的一体化处理剂。通过用目标区块含聚采出水开展杀菌率、缓蚀率、阻垢率评价试验,当加量为80 mg·L^(-1)时,对SRB的杀菌率可达99.5%以上,对TGB和FB的杀菌率可达100%,缓蚀率和阻垢率6 d可达80%左右。

A multi-functional treatment agent was developed to alleviate the damage caused by bacteria exceeding the standard in the polymer-containing produced water.The treatment agent is mainly composed of non-oxidative pyridinone quaternary ammonium salt fungicides and a certain proportion of osmotic fungicides isothiazolinone and sodium polycyclosuccinate scale inhibitor.The germicidal rate,corrosion inhibition rate and scale inhibition rate were evaluated by using the polymer-containing produced water in the target block.When the addition amount was80 mg·L^(-1),the sterilization rate of SRB was more than 99.5%,the sterilization rate of TGB and FB reached 100%,and the corrosion inhibition rate and scale inhibition rate reached about 80% in 6 days.