含过氧化氢的气田水回注工艺过程安全风险评价

Safety Risk Assessment of Hydrogen Peroxide-Containing Gas Field Water Reinjection Process

摘要: 双氧水处理后的回注气田水中含有超饱和度和亚稳定状态下的过氧化氢会对气田水回注工艺产生安全风险。本文用图形化描述本质安全方法(GRAND)对含过氧化氢的气田水回注工艺过程进行了安全评价，识别了含过氧化氢的气田水回注工艺过程中的危险源，并结合2维图形评价方法(2DGR)评估了工艺过程的危险水平。结果表明，含过氧化氢的气田水回注工艺过程的GRAND总分为326.33，落在2DGR图形的白色区域，含过氧化氢的气田水回注工艺过程安全风险低，安全风险可控。

Abstract: The reinjection gas field water after hydrogen peroxide treatment contains super saturation and hydrogen peroxide in the metastable state, which will pose a safety risk to the reinjection process of gas field water. In this paper, the graphical description of intrinsic safety method (GRAND) is used to evaluate the safety of hydrogen peroxide-containing gas field water reinjection process. The haz-ard sources in the process of hydrogen peroxide-containing gas field water reinjection are identified, and the risk level of the process is evaluated in combination with the two-dimensional graphical evaluation method (2DGR). The results show that the total GRAND score of the gas field water reinjection process containing hydrogen peroxide is 326.33, which falls in the white area of the 2DGR graph. The safety risk of the gas field water reinjection process containing hydrogen peroxide is low and controllable.