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NB/T 11125-2023: Specification for hydraulic fracturing technical program design of gas drainage hole in coal mine
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| NB/T 11125-2023 | English | 389 |
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Specification for hydraulic fracturing technical program design of gas drainage hole in coal mine
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NB/T 11125-2023
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Basic data | Standard ID | NB/T 11125-2023 (NB/T11125-2023) | | Description (Translated English) | Specification for hydraulic fracturing technical program design of gas drainage hole in coal mine | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | D15 | | Classification of International Standard | 73.020 | | Word Count Estimation | 17,196 | | Date of Issue | 2023-02-06 | | Date of Implementation | 2023-08-06 | | Issuing agency(ies) | National Energy Administration | NB/T 11125-2023: Specification for hydraulic fracturing technical program design of gas drainage hole in coal mine
---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.
ICS 73:020
CCSD15
People's Republic of China Energy Industry Standards
Hydraulic fracturing of underground gas drainage holes in coal mines
Specifications for technical scheme design
Released on 2023-02-06
2023-08-06 Implementation
Released by the National Energy Administration
table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Data preparation 1
4:1 Geological data 1
4:2 Mine Production Data 2
4:3 Fracturing hole data 2
5 Design content and requirements 2
5:1 Well completion design 2
5:2 Fracturing method 2
5:3 Selection of fracturing fluid 2
5:4 Design of fracturing parameters 2
5:5 Selection of fracturing equipment 4
5:6 Sealing method and requirements 4
5:7 Fracturing construction design 4
6 Safety technical requirements 5
6:1 Requirements for preventing and controlling coal and gas outbursts 5
6:2 Quality, safety, health and environmental protection requirements 5
6:3 Fracturing safety plan 5
6:4 Construction organization and quality control 5
7 Fracturing scheme design book 5
Appendix A (Informative) Fracturing construction site data collection format 6
Appendix B (Informative) Fracture Curve Example Figure 10
Appendix C (Informative) Fracturing Scheme Design Outline 11
Reference 12
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents"
drafting:
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document was proposed by the China Coal Industry Association:
This document is under the jurisdiction of the National Coal Standardization Technical Committee (SAC/TC42):
This document is drafted by: China Coal Science and Industry Group Xi'an Research Institute Co:, Ltd:, Shaanxi Shaanxi Coal Hancheng Mining Co:, Ltd:, Huayang New Materials Division
Technology Group Co:, Ltd:
The main drafters of this document: Mou Quanbin, Jiang Zaibing, Wu Jie, Yan Zhiming, Shu Jiansheng, Chen Zhisheng, Li Guihong, Du Tianlin:
Hydraulic fracturing of underground gas drainage holes in coal mines
Specifications for technical scheme design
1 Scope
This document specifies the data preparation, design content and requirements, and safety technology for the hydraulic fracturing technical scheme design of underground gas drainage holes in coal mines:
Requirements, format of fracturing scheme design book:
This document is applicable to the technical scheme design of hydraulic fracturing for underground gas drainage holes in coal mines:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB/T 30050 Coal Body Structure Classification
GB 50471 Coal Mine Gas Drainage Engineering Design Standards
AQ1023 General safety technical requirements for low-voltage power supply systems and equipment in coal mines
AQ1027 Coal mine gas drainage specification
AQ1028 Coal mine underground mining ventilation technical conditions
AQ1029 Coal mine safety monitoring system and testing equipment use management specification
AQ6201 General Technical Requirements for Coal Mine Safety Monitoring System
3 Terms and Definitions
The following terms and definitions apply to this document:
3:1
Under the coal mine, the fracturing equipment is used to inject fracturing fluid into the target formation under high pressure through the borehole to rupture the formation and form a certain flow-conducting capacity:
A technological measure of cracks:
3:2
Integral fracturing
The fracturing method is to treat the fracturing hole as a whole section and complete the fracturing at one time:
3:3
Multistage fracturing multistagefracturing
A fracturing method in which multiple independent fracturing segments are formed in the fracturing hole and the fracturing is completed separately:
4 Document preparation
4:1 Geological data
Including geological structure, coal seam thickness, buried depth, structure, occurrence, roof and floor lithology, mechanical test parameters, gas parameters, ground stress test data
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