ICS 75.020 CCS E 24 湖 43 南 省 地 方 标 准 DB43/T 1974—2021 天然气储气井定期检验规程 Natural Gas Storage Well Periodic Inspection Regulation 2021 - 05 - 20 实施 2021 - 02 - 20 发布 湖南省市场监督管理局 发 布 DB43/T 1974—2021 目 次 前言························································································································ Ⅲ 1 范围 ····················································································································· 1 2 规范性引用文件 ······································································································ 1 3 术语和定义 ············································································································ 1 4 检验机构及相关人员 ································································································ 2 4.1 检验机构 ········································································································· 2 4.2 检验人员 ········································································································· 2 5 定期检验周期 ········································································································· 2 6 定期检验的一般要求 ································································································ 3 7 检验前的准备工作 ··································································································· 3 7.1 检验方案 ········································································································· 3 7.2 资料审查 ········································································································· 3 7.3 现场条件 ········································································································· 4 8 检验项目及方法 ······································································································ 4 8.1 宏观检验 ········································································································· 4 8.2 壁厚测定 ········································································································· 5 8.3 材质检查 ········································································································· 5 8.4 硬度检测和金相检验 ·························································································· 5 8.5 紧固件检查 ······································································································ 5 8.6 井筒静强度校核 ································································································ 5 8.7 疲劳强度校核 ··································································································· 5 8.8 有限元分析 ······································································································ 5 8.9 土壤腐蚀性检测 ································································································ 5 8.10 储气井加固施工评价 ························································································ 6 8.11 安全附件检查 ································································································· 6 8.12 耐压试验 ······································································································· 6 8.13 气密性试验 ···································································································· 6 9 安全状况等级评定 ··································································································· 6 10 检验记录与检验报告 ······························································································ 7 10.1 检验记录 ······································································································· 7 10.2 检验报告 ······································································································· 7 11 附则···················································································································· 7 11.1 检验意见书 ···································································································· 7 I DB43/T 1974—2021 11.2 检验案例 ······································································································· 8 11.3 年度检查 ······································································································· 8 附录 A（资料性） 意见通知书 ······················································································ 9 附录 B（资料性） 储气井定期检验报告 ········································································ 11 附录 C（资料性） 储气井年