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DZ/T 0260-2024 English PDF

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DZ/T 0260-2024: (Technical regulations for geothermal drilling)
Status: Valid

DZ/T 0260: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
DZ/T 0260-2024English1109 Add to Cart 7 days [Need to translate] (Technical regulations for geothermal drilling) Valid DZ/T 0260-2024
DZ/T 0260-2014EnglishRFQ ASK 8 days [Need to translate] Technical specification for geothermal well drilling Obsolete DZ/T 0260-2014

Basic data

Standard ID DZ/T 0260-2024 (DZ/T0260-2024)
Description (Translated English) (Technical regulations for geothermal drilling)
Sector / Industry Geological Industry Standard (Recommended)
Classification of Chinese Standard D14
Classification of International Standard 73.100.30
Word Count Estimation 50,590
Date of Issue 2024-08-02
Date of Implementation 2024-10-01
Older Standard (superseded by this standard) DZ/T 0260-2014
Issuing agency(ies) Ministry of Natural Resources

DZ/T 0260-2014: Technical specification for geothermal well drilling

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Technical specification for geothermal well drilling ICS 73.100.30 D14 People's Republic of China geological mineral industry standard Geothermal drilling technical regulations Published on.2014-09-22 2014-12-01 implementation Ministry of Land and Resources of the People's Republic of China

Content

Foreword III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General 2 4.1 Basic requirements 2 4.2 Geothermal well type and well structure 2 5 Geothermal drilling engineering design 3 5.1 Design Requirements 3 5.2 Design Content 3 6 Drilling equipment selection and installation 5 6.1 Equipment Selection 5 6.2 Equipment Installation 5 7 geothermal well drilling 7 7.1 Drilling method selection 7 7.2 Core drilling 8 7.3 Full drilling 10 7.4 Reaming Drilling 13 7.5 Directional Well Drilling 13 7.6 Geothermal well drilling special requirements 17 8 drilling fluid 19 8.1 Drilling fluid type and applicable conditions 19 8.2 Drilling Fluid Preparation 19 8.3 Drilling Fluid Management and Maintenance 22 8.4 Drilling retaining wall and plugging 22 9 Chengjing Process 23 9.1 object detection well 23 9.2 Sweeping holes 23 9.3 Broken wall 23 9.4 Punching and changing 23 9.5 Lower tube 23 9.6 Gravel and water stop 24 9.7 Cementing 24 9.8 Well washing 24 9.9 Pumping test 25 10 fracturing water 25 10.1 Fracturing water application conditions 25 10.2 Fracturing watering equipment and implements 25 10.3 Fracturing interval selection 25 10.4 Fracturing fluid material preparation 26 10.5 Equipment Inspection and Installation 26 10.6 Fracturing Construction and Operational Requirements 26 11 Common In-Circuit Accident Prevention and Treatment 27 11.1 Prevention and treatment of stuck drill accidents 27 11.2 Prevention measures for blowout and harmful gas infestation 28 11.3 Prevention and treatment of other accidents 28 12 geothermal well repair 28 12.1 Surge detection and repair 28 12.2 Water volume reduction inspection and repair 28 12.3 Type and repair of well pipe rupture 29 12.4 Drilling in the well 29 13 Geothermal well engineering quality 29 13.1 Engineering Quality Requirements 29 13.2 Project Quality Assurance Measures 31 14 Engineering Technology Report and Data Archiving 33 14.1 Engineering and Technical Report 33 14.2 Data Archiving 33 15 Health, Safety and Environmental Protection 33 15.1 Health Management 33 15.2 Security Management 34 15.3 Environmental Protection 36 Appendix A (Normative Appendix) Geothermal drilling engineering technical report preparation outline 38 Appendix B (informative) Drilling fluid treatment agent 41 Appendix C (informative appendix) Domestic tri-cone bit 44 Appendix D (informative) Table 45 for drilling design Reference 47

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Ministry of Land and Resources of the People's Republic of China. This standard is under the jurisdiction of the National Land Resources Standardization Technical Committee (SAC/TC93). This standard was drafted. Hydrogeological Environmental Geological Survey Center of China Geological Survey, Tianjin Geothermal Exploration and Development Design Institute, Beijing Geothermal Research Institute, Henan Geothermal Energy Development and Utilization Co., Ltd., Institute of Exploration Technology, Chinese Academy of Geological Sciences, Third Geological Engineering of Shanxi Province Survey Institute. The main drafters of this standard. Zheng Jitian, Li Bingping, Bao Weihe, Ma Zhongping, Li Zhenjie, Peng Xinming, Lu Yubei, Sun Jianhua, Sun Zhijie, Kang Zhihong, Ye Chengming, Li Xiaojie, Guan Xiaolin. Geothermal drilling technical regulations

1 Scope

This standard specifies geothermal drilling equipment selection, drilling technology, well formation technology, engineering quality, safety construction, occupational health and environmental protection. Such technical work requirements can be used as the basis for geothermal drilling design, construction, management and other work. This standard applies to the exploration or development of geothermal steam and geothermal water drilling.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this file. For undated references, the latest edition (including all amendments) applies to this document. GB 6067.1 Safety rules for lifting machinery - Part 1. General GB 6722 blasting safety regulations GB/T 11615 geothermal resource geological exploration specification GB 50027 Water Supply Hydrogeological Exploration Specification GB 50194 Construction site safety requirements for construction and supply of electricity GB 50296 water supply well technical specification AQ2004-2005 Geological Exploration Safety Regulations AQ/T 9006 Basic Specification for Enterprise Safety Production Standardization DZ/T 0148 Hydrology Well Drilling Procedure SY/T 5964 Drilling Well Control Unit Combination Installation, Commissioning and Maintenance

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Geothermal drilling geothermalweldriling Drilling works for the purpose of exploring or developing geothermal steam and geothermal water. 3.2 Geothermal well, well welcompletion Also known as the completion of the well. Refers to the mining of geothermal steam and geothermal water after the drilling has reached the predetermined depth and the intended purpose to end the drilling. Downhole operations required, including punching, slurry changing, installation of well pipes, gravel, water stop cementing, well washing and pumping tests. 3.3 Well structure drilwelstructure The diameter of the wellbore and the diameter of the casing diameter vary with the depth of the well. The wellbore elements include the diameter of the opening, the diameter of the final hole, the diameter of each hole, and the depth. And the diameter and depth of the sleeve. 3.4 Casing program casingprogram The number of casing layers in a well as well as the depth of penetration and the diameter of each casing, corresponding to the diameter of the wellbore of each well.

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