NB/T 11749-2024 Active Industry standards-Energy

NB/T 11749-2024 NB/T 11749-2024 Subdivision hydraulic fracturing technology specification for coal and rock layers in coal mine underground

Publish Date: 2024-12-25 Implement Date: 2025-06-25 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: NB/T 11749-2024

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: Health, safety, and labor protection

ICS Name: Mining and mineral products comprehensive

Publish Date: 2024-12-25

Implement Date: 2025-06-25

Scope

This document is applicable to the segmented hydraulic fracturing construction in areas such as gas extraction from coal seams and the weakening of hard roofs in coal mines.

Development Information

Related Standards

GB/T 2007.1-1987 Active

GB/T 2007.1-1987 General rules for the sampling and sample preparation of minerals in bulk—Sampling by manual method

Publish Date: 1987-12-15

GB/T 2007.2-1987 Active

GB/T 2007.2-1987 General rules for the sampling and sample preparation of minerals in bulk Sample preparation by manual method

Publish Date: 1987-12-15

GB/T 2007.3-1987 Active

GB/T 2007.3-1987 General rules for the sampling and sample preparation of minerals in bulk—Experimental method for evaluation of quality variation

Publish Date: 1987-12-15

GB/T 2007.4-1987 Replaced

GB/T 2007.4-1987 General rules for the sampling and sample preparation of minerals in bulk—Experimental methods for checking the precision

Publish Date: 1987-12-15

GB/T 2007.5-1987 Replaced

GB/T 2007.5-1987 General rules for the sampling and sample preparation of minerals in bulk—Experimental method for checking the bias of sampling

Publish Date: 1987-12-15

GB/T 2007.6-1987 Active

GB/T 2007.6-1987 General rules for the sampling and sample preparation of minerals in bulk—Determination of moisture content—Heat drying method

Publish Date: 1987-12-15