地热钻探技术规程

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点击此处添加中国标准文献分类号

DZ

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中华人民共和国地质矿产行业标准

地热钻探技术规程

Geothermal drilling regulations

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（征求意见稿）

（2011.8.30）

XXXX - XX - XX发布 XXXX - XX - XX实施

中华人民共和国国土资源部 发布

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I

XX/T XXXXX—XXXX 目 次

前言 ................................................................................. VI

1 范围 ............................................................................... 1

2 规范性引用文件 ..................................................................... 1

3 术语与定义 ......................................................................... 1

4 总则 ............................................................................... 3

5 地热井类型及井身结构 ............................................................... 4

5.1 地热井类型 ..................................................................... 4

5.2 地热井井身结构 ................................................................. 4

6 地热钻井工程设计 ................................................................... 5

6.1 钻井设计基本原则 ............................................................... 5

6.2 钻井设计基本要求 ............................................................... 5

6.3 钻井设计内容 ................................................................... 5

7 钻井设备的选择 ..................................................................... 8

7.1

7.2

7.3

7.4

7.5 钻机的选择 ..................................................................... 8 泥浆泵的选择 ................................................................... 8 井架与平台的选择 ............................................................... 8 钻井液固控系统的选择 ........................................................... 8 其他附属装置 ................................................................... 8

8 钻前准备 ........................................................................... 9

8.1

8.2

8.3

8.4 井场修建与布置 ................................................................. 9 设备安装 ....................................................................... 9 机具与材料准备 ................................................................ 10 检查与验收 .................................................................... 11

9 地热井钻进方法选择 ................................................................ 11

9.1 钻进方法分类 .................................................................. 11

9.2 钻进方法选择 .................................................................. 12

10 全面钻进 ......................................................................... 13 10.1

10.2

10.3

10.4

10.5

10.6

II 钻具组合一般要求 ............................................................. 13 牙轮钻头钻进 ................................................................. 14 刮刀（翼状）钻头钻进 ......................................................... 15 PDC钻头钻进 ................................................................. 16 气动潜孔锤钻进 ............................................................... 17 钢丝绳冲击钻进 ............................................................... 17

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10.7 液动潜孔锤全面钻进 .......................................................... 17

10.8 喷射钻井 .................................................................... 18

10.9 反循环钻进工艺 .............................................................. 19

11 取心钻进 ........................................................................ 19

11.1 地热井取心钻进 .............................................................. 19

11.2 地热井取心方法选择 .......................................................... 19

11.3 单回次取心钻进 .............................................................. 20

12 扩孔钻进 ........................................................................ 21

12.1 合金钻头扩孔钻进 ............................................................ 21

12.2 牙轮钻头扩孔钻进 ............................................................ 21

12.3 潜孔锤扩孔钻进 .............................................................. 21

13 地热井钻进特殊操作要求 .......................................................... 21 13.1

13.2

13.3

13.4

13.5

13.6

13.7

13.8 防斜操作要求 ................................................................ 21 划眼作业要求 ................................................................ 22 录井作业要求 ................................................................ 22 井控要求 .................................................................... 23 钻遇特殊地层操作要求 ........................................................ 23 预防井喷操作要求 ............................................................ 23 防止井漏操作要求 ............................................................ 23 高温钻井操作要求 ............................................................ 24

14 定向井钻进 ...................................................................... 24 14.1

14.2

14.3

14.4 定向井应用范围 .............................................................. 24 定向井井身轨道的确定 ........................................................ 24 定向井施工 .................................................................. 25 定向钻井施工安全措施 ........................................................ 29

15 冲洗介质 ........................................................................ 29 15.1

15.2

15.3

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