ICS 73.020 CCS D 10 NB 中华人民共和国能源行业标准 NB/T 11158—2023 水热型地热尾水回灌技术规程 Technical specification for hydrothermal geothermal return water reinjection 2023-02-06发布 2023-08-06实施 NB/T 11158—2023 I 目 次 前言 ·····························································································································II I 1 范围 ························································································································· 1 2 规范性引用文件 ·········································································································· 1 3 术语和定义 ················································································································ 1 4 总则 ························································································································· 3 5 可回灌性论证与地质设计 ······························································································ 3 5.1 回灌目的层勘查 ····································································································· 3 5.2 回灌目的段的确定 ·································································································· 4 6 回灌井钻井技术设计与施工 ··························································································· 6 6.1 回灌井钻井技术设计 ······························································································· 6 6.2 施工工艺及要求 ····································································································· 8 7 压裂增产技术 ··········································································································· 10 7.1 一般要求 ············································································································ 10 7.2 酸化压裂技术 ·······································································································11 7.3 支撑剂压裂技术 ··································································································· 12 8 地面回灌系统设计与安装 ···························································································· 12 8.1 地面回灌系统设计 ································································································ 12 8.2 地面回灌系统安装要求 ·························································································· 12 9 回灌试验 ················································································································· 14 9.1 一般规定 ············································································································ 14 9.2 梯级流量试验 ······································································································ 14 9.3 梯级温度试验 ······································································································ 14 10 回灌工艺 ················································································································ 15 10.1 一般规定 ·········································································································· 15 10.2 回灌方式 ·········································································································· 15 10.3 回扬 ················································································································ 15 10.4 回灌数据统计分析 ······························································································ 16 10.5 生产性回灌方案 ································································································· 17 11 回灌监测与评价 ······································································································· 17 11.1 一般规定 ·········································································································· 17 11.2 回灌监测的内容 ································································································· 17 11.3 回灌评价 ·······················································