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NB/T 11527-2024: Code of practice for gas directional drilling in coal mine
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| NB/T 11527-2024 | English | 299 |
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Code of practice for gas directional drilling in coal mine
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NB/T 11527-2024
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Basic data | Standard ID | NB/T 11527-2024 (NB/T11527-2024) | | Description (Translated English) | Code of practice for gas directional drilling in coal mine | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | D80 | | Classification of International Standard | 73.020 | | Word Count Estimation | 14,169 | | Date of Issue | 2024-05-24 | | Date of Implementation | 2024-11-24 | | Issuing agency(ies) | National Energy Administration | NB/T 11527-2024: Code of practice for gas directional drilling 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
CCSD80
Energy Industry Standards of the People's Republic of China
Technical specification for pneumatic directional drilling in underground coal mines
Released on 2024-05-24
Implementation on November 24, 2024
The National Energy Administration released
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Applicable formation conditions 2
5 Drilling equipment selection 2
6 Drilling Design 4
7 Site Requirements 4
8 Drilling and hole finishing technology 5
9 Construction safety technical measures 7
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 of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Coal Industry Association.
This document is under the jurisdiction of the Coal Industry Coal Mine Special Equipment Standardization Technical Committee.
This document was drafted by. China Coal Technology and Engineering Xi'an Research Institute (Group) Co., Ltd., Huaihe Energy Holding Group Co., Ltd., Huaibei Mining
Co., Ltd., Shanxi Tiandi Wangpo Coal Industry Co., Ltd., Guizhou Ansheng Energy Co., Ltd., Xi'an Coal Science and Technology Testing Technology Co., Ltd.
company.
The main drafters of this document are. Yao Ningping, Liu Jianlin, Wang Yi, Zhang Jie, Fang Jun, Chen Jian, Xu Rui, Liu Fei, Sun Yongxin, Chen Gonghua, Wang Li,
Fang Youxiang, Han Jian, Zhang Zhe.
Technical specification for pneumatic directional drilling in underground coal mines
1 Scope
This document specifies the applicable formation conditions, drilling equipment selection, drilling design, site requirements, drilling
Requirements on drilling and completion techniques, construction safety technical measures, etc.
This document is applicable to directional drilling operations using gas-based fluid as the circulating power medium during measurement while drilling in coal mines.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 3836.1 Explosive atmospheres Part 1.General requirements for equipment
GB/T 3836.2 Explosive atmospheres Part 2.Equipment protected by flameproof enclosure "d"
GB/T 3836.4 Explosive atmospheres Part 4.Equipment protected by intrinsic safety type "i"
AQ1013 Safety inspection and testing specifications for air compressors in use in coal mines
AQ1027-2006 Coal Mine Gas Extraction Specification
MT/T 159 General technical requirements for mining dust collectors
MT/T 521 Conventional drill rods for coal mine tunnel drilling
MT/T 687 Air compressor for underground coal mines
MT/T 774 General technical requirements for mobile membrane separation nitrogen production equipment for coal mines
MT/T 790 Coal Mine Tunnel Exploration Drilling Rig
MT/T 1135 General technical requirements for carbon molecular sieve nitrogen generators for coal mines
NB/T 10173-2019 Technical specification for directional drilling in underground coal mines
NB/T 10174 Technical requirements for directional drilling while drilling measurement equipment for mining
NB/T 10175 Coal mine underground wired measurement while drilling drill pipe
SY/T 5383 Screw Drilling Tools
SY/T 5547 Use, maintenance and management of screw drilling tools
3 Terms and definitions
The terms and definitions defined in NB/T 10173-2019 and the following apply to this document.
3.1
Directional drilling method and process for measurement while drilling using gas-based fluid (compressed gas as the main body) as circulating power medium in coal mines.
3.2
Pneumatic directional drilling using compressed air as the circulating power medium.
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