NB/T 11635-2024 Active Industry standards-Energy

NB/T 11635-2024 Measuring method for effective radius of gas emission drilling in coal seam

Publish Date: 2024-09-24 Implement Date: 2025-03-24 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: NB/T 11635-2024

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: Health, safety, and labor protection

ICS Name: Occupational safety and industrial hygiene

Publish Date: 2024-09-24

Implement Date: 2025-03-24

Pages: 16 pages

Scope

This document specifies the preparation before the determination of the effective discharge radius of coal seam gas discharge boreholes by the drilling natural gas flow method and the drill cuttings gas desorption index method, the arrangement of boreholes, the determination process, and the determination principles, etc.
This document is applicable to the determination of the effective discharge radius of coal seam gas discharge boreholes in outburst coal seams. The determination of the effective discharge radius of gas discharge boreholes in cross-seam coal seams and the determination of the effective discharge radius of gas discharge boreholes in non-outburst coal seams can be implemented with reference to this document.