石油和天然气工业.套管,油管和井下设备较高二氧化碳含量的材料选择

[中文适用范围]： 本国际标准为高压和高CO2含量环境[高于10%（摩尔）CO2和1 MPa CO2]的CO2注气和采气井的无缝套管和油管以及井下设备的材料选择提供了指南和要求。 分压]。 本国际标准不包括石油生产井。 本国际标准仅考虑材料与环境的兼容性。 给出以下指导： ——腐蚀评估； ——材料选择； ——腐蚀控制。 该国际标准针对高 CO2 含量井，这些井中低 pH 值和 CO2 腐蚀的威胁最大。 然而，许多方面同样适用于二氧化碳浓度较低的环境。 材料选择受到许多因素和协同作用的影响，应由材料或腐蚀工程师执行。 [外文原描述]： ISO 17348:2016 provides guidelines and requirements for material selection of both seamless casing and tubing, and downhole equipment for CO 2 gas injection and gas production wells with high pressure and high CO 2 content environments [higher than 10 % (molar) of CO 2 and 1 MPa CO 2 partial pressure]. Oil production wells are not covered in this International Standard. This International Standard only considers materials compatibility with the environment. Guidance is given for the following: - corrosion evaluation; - materials selection; - corrosion control. ISO 17348:2016 is aimed at high CO 2 content wells, where the threat of low pH and CO 2 corrosion is greatest. However, many aspects are equally applicable to environments containing lower CO 2 concentrations. Materials selection is influenced by many factors and synergies and should be performed by either materials or corrosion engineer.