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NB/T 11543-2024 English PDF

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US$299.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
NB/T 11543-2024: Technical coal of practice for boreholes transient electromagnetic prospecting technical of underground in coal mine
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
NB/T 11543-2024	299	Add to Cart	3 days	Technical coal of practice for boreholes transient electromagnetic prospecting technical of underground in coal mine	Valid

Basic data

Standard ID: NB/T 11543-2024 (NB/T11543-2024)
Description (Translated English): Technical coal of practice for boreholes transient electromagnetic prospecting technical of underground in coal mine
Sector / Industry: Energy Industry Standard (Recommended)
Classification of Chinese Standard: D82
Classification of International Standard: 73.100.99
Word Count Estimation: 14,170
Date of Issue: 2024-05-24
Date of Implementation: 2024-11-24
Issuing agency(ies): National Energy Administration

NB/T 11543-2024: Technical coal of practice for boreholes transient electromagnetic prospecting technical of underground 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 73.100.99 CCSD82 Energy Industry Standards of the People's Republic of China Technical specification for transient electromagnetic detection of boreholes in underground coal mines Released on 2024-05-24 Implementation on November 24, 2024 The National Energy Administration released

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 General Requirements 2 5 Construction Design 3 6 Data Collection 4 7 Data Processing 5 8 Data Explanation 6 9 Report Preparation 7 10 Report review 8 Appendix A (Informative) Drilling Transient Electromagnetic Measurement Class Report 9

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., China University of Mining and Technology, Shaanxi Shaanmei Hancheng Mining Co., Ltd. company. The main drafters of this document are. Fan Tao, Li Ping, Liu Lei, Wang Jikuang, Feng Hong, Zhang Zhe, Yan Bin, Yu Jingcun, Wang Sherong, Zhao Zhao, Zhao Rui, Li Bofan, Wang Yanbo and Liu Guangliang. Technical specification for transient electromagnetic detection of boreholes in underground coal mines

1 Scope

This document specifies the application of transient electromagnetic detection technology in underground coal mine boreholes in construction design, data collection, data processing, data interpretation, and report compilation. The basic requirements and implementation procedures in the process of system preparation and reporting review. This document is applicable to transient electromagnetic detection operations in boreholes in coal mines, including in-hole transient electromagnetic method, inter-hole transient electromagnetic method and tunnel transient electromagnetic method. Hole transient electromagnetic method.

2 Normative references

The contents of the following documents constitute 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 14499 Geophysical Exploration Technical Symbols DZ/T 0069 Geophysical exploration map format, legend and color standard

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Borehole transient electromagnetic method is a non-contact method based on the obvious resistivity difference between coal seams, surrounding rocks and potential geological anomalies. The method is to establish an artificial electromagnetic field in the space around the borehole through a transmitting coil, and measure the induction in the formation after the field disappears in the borehole. The secondary magnetic field is used to detect geological anomalies. This can be used when there is a discernible electrical difference between the detected anomaly and the background rock. method. 3.2 The drilling coordinate system consists of three components. A, U, and V. A is the axial component of the drilling, which is positive toward the bottom of the hole, and U is on the vertical plane through the drill hole. The borehole is horizontal and the azimuth is 0°. When the borehole is drilled, the positive direction of U is vertically downward, and the positive direction of V is eastward. Figure 1 shows the three-component directions of the borehole. Fig.1 Schematic diagram of borehole transient electromagnetic detection coordinate system ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of NB/T 11543-2024_English be delivered?

Answer: Upon your order, we will start to translate NB/T 11543-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of NB/T 11543-2024_English with my colleagues?

Answer: Yes. The purchased PDF of NB/T 11543-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.