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GB/T 41163-2021: Specification for process design of enhancing coal seam permeability by water jet in coalmine
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Specification for process design of enhancing coal seam permeability by water jet in coalmine
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GB/T 41163-2021
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Basic data | Standard ID | GB/T 41163-2021 (GB/T41163-2021) | | Description (Translated English) | Specification for process design of enhancing coal seam permeability by water jet in coalmine | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D15 | | Word Count Estimation | 12,190 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41163-2021: Specification for process design of enhancing coal seam permeability by water jet in coalmine
---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.
Specification for process design of enhancing coal seam permeability by water jet in coalmine
ICS 73:020
CCSD15
National Standards of People's Republic of China
The technology of water jet impingement and anti-permeability of coal seam in underground coal mine
design specification
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
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 of Standardization Documents"
drafted:
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by China Coal Industry Association:
This document is under the jurisdiction of the National Coal Standardization Technical Committee (SAC/TC42):
This document is drafted by: Coal Science and Technology Research Institute Co:, Ltd:, China University of Mining and Technology, China Coal Science and Industry Group Xi'an Research Institute Co:, Ltd:
Company, Chongqing University, Jinneng Holding Shanxi Science and Technology Research Institute (Jincheng) Technology Research Institute Co:, Ltd:, Liaoning University of Engineering and Technology, Huayang
New Materials Technology Group Co:, Ltd:, Huaneng Coal Technology Research Co:, Ltd:
The main drafters of this document: Shu Longyong, Wang Weihua, Huo Zhonggang, Lin Boquan, Shen Chunming, Zhang Peihe, Li Hongyan, Li Quangui, Du Hailong, Sun Weiji,
Zhang Lang, Yan Zhiming, Wang Dong, Wang Yilong, Liu Yongqian, Jiang Wenping, Hao Jinwei, Li Yang, Fan Yongpeng, Sun Fulong, Li Lei:
The technology of water jet impingement and anti-permeability of coal seam in underground coal mine
design specification
1 Scope
This document specifies the equipment and process parameter design, anti-reflection construction process, health and safety
Environmental management and design documents and other requirements:
This document is applicable to the design and construction of hydraulic slitting, burrowing, and perforating water jet impact enhancement of coal seams in coal mines:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 2346 Nominal pressure series of fluid transmission system and components
GB/T 3214 Determination method of water pump flow
GB/T 7939 Test method for hydraulic hose assembly
GB/T 10544 Rubber hoses and hose assemblies for oil-based or water-based fluids - Specification for wire wound reinforced rubber-clad hydraulic types
GB/T 12241 General requirements for safety valves
GB/T 20801:2 Specification for Pressure Piping Industrial Piping Part 2: Materials
GB/T 25429 Oil and gas drilling equipment drilling tool check valve
GB/T 26135 High Pressure Washer
GB/T 26148 Safety Specification for High Pressure Water Jet Cleaning Operation
GB/T 30050 Classification of Coal Structure
GB 50471 Design Standard for Coal Mine Gas Drainage Engineering
MT/T 459 General technical conditions of hydraulic parts for coal mining machinery
NB/T 10123 Technical conditions for "two plugs and one injection" sealing technology for gas drainage holes in coal mines
3 Terms and Definitions
The following terms and definitions apply to this document:
3:1
Coal seam water jet impact enhancement by waterjet
In the borehole, water jet impingement methods such as hydraulic slitting, hydraulic burrowing, and hydraulic punching are used to form a certain scale of slits and holes in the coal seam:
It is a means of increasing the pressure relief range of the borehole, increasing the permeability of the coal body, and promoting the gas flow and gushing in the coal body:
3:2
Hydraulicslotting
High-speed water jets are generated by pressurization equipment and nozzles of specific shapes, which act on the coal body, and form in the coal body along the radial direction of the borehole:
Water jet impingement anti-reflection method with slot of certain width and depth:
[Source: NB/T 10057-2018, 3:3, with modifications]
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