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GB/T 35206-2025 English PDF

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US$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 35206-2025: Thin section examination of shale and mudstone
Status: Valid

GB/T 35206: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 35206-2025	359	Add to Cart	4 days	Thin section examination of shale and mudstone	Valid
GB/T 35206-2017	279	Add to Cart	3 days	Thin section examination of shale and mudstone	Valid

Similar standards

GB/T 51033 GB/T 50082 GB/T 35206

Basic data

Standard ID: GB/T 35206-2025 (GB/T35206-2025)
Description (Translated English): Thin section examination of shale and mudstone
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: E11
Classification of International Standard: 75.020
Word Count Estimation: 18,164
Date of Issue: 2025-08-01
Date of Implementation: 2026-02-01
Older Standard (superseded by this standard): GB/T 35206-2017
Issuing agency(ies): State Administration for Market Regulation, Standardization Administration of China

GB/T 35206-2025: Thin section examination of shale and mudstone

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT35206-2025
ICS 75.020 CCSE11 National Standard of the People's Republic of China Replaces GB/T 35206-2017 Thin section identification of shale and mudstone rocks Released on August 1, 2025 Implementation on February 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Equipment and Reagents 1 4.1 Equipment 1 4.2 Reagent 1 5 Identification Procedure 2 5.1 Visual observation of rock specimens 2 5.2 Rock Slicing 2 5.3 Rock thin section observation 2 6 Identification Content 2 6.1 Rock thin section identification 2 6.2 Rock Cast Thin Section Identification 5 7 Shale and mudstone nomenclature 5 7.1 Naming format and principles, and calculation method of content in identification table 5 7.2 Component naming 6 7.3 Structure Naming 7 7.4 Construct Naming 7 8 Content and format of appraisal report 7 9 Quality Requirements 7 Appendix A (Informative) Special Structure Diagram 8 Appendix B (Informative) Example of a Shale and Mudstone Thin Section Identification Report 9 Appendix C (Informative) Example of thin section identification report for shale and mudstone rock castings 10 Reference 11 Preface 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. This document replaces GB/T 35206-2017 “Identification of thin sections of shale and mudstone”. Compared with GB/T 35206-2017, except for the structure In addition to adjustments and editorial changes, the main technical changes are as follows. a) The scope of application has been changed (see Chapter 1, Chapter 1 of the.2017 edition); b) Added the technical specifications of “fluorescence system” and instruments and equipment (see 4.1); c) The content of “Reagents” has been changed (see 4.2, 4.2 of the.2017 edition); d) Added content on “solid organic matter”, “oil content” and “acid drop reaction” for visual observation of rock specimens (see 5.1); e) Modified some content on “Rock Thin Section Identification” (see 6.1, 6.1 of the.2017 edition); f) Modified some content of "Thin Section Identification of Rock Casts" (see 6.2, 6.2 of the.2017 edition); g) The nomenclature of shale and mudstone has been modified (see Chapter 7, Chapter 7 of the.2017 edition); h) Added "Quality Requirements" (see Chapter 9); i) Change the “Schematic diagrams of common special structures” from a normative appendix to an informative appendix (see Appendix A, Appendix A of the.2017 edition). 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 is proposed and coordinated by the National Natural Gas Standardization Technical Committee (SAC/TC244). This document was drafted by. China National Petroleum Corporation Southwest Oil and Gas Field Branch Exploration and Development Research Institute, China National Petroleum Corporation Exploration and Development Research Institute of Daqing Oilfield Co., Ltd., Southwest Petroleum University, China Petrochemical Corporation Petroleum Exploration and Development Research Institute of PetroChina Co., Ltd., Xinjiang Oilfield Company of PetroChina Co., Ltd., and Sinopec East China Oil and Gas Branch of China National Petroleum Corporation, China National Petroleum Corporation Sichuan Qing Drilling Engineering Co., Ltd., Geological Exploration and Development Research Institute, CNOOC Energy Development Engineering Technology Branch of Yanchang Petroleum Co., Ltd. and Research Institute of Shaanxi Yanchang Petroleum (Group) Co., Ltd. The main drafters of this document are. Yan Yuxia, Kong Lingming, Luo Zhong, Gao Bo, Wang Li, Tang Hongming, Man Ling, Yu Xiaolu, Zhou Jixian, Wang Xingzhi, Tian Hua, Li Hui, Pu Xiaoqian, Wan Huan, Jia Pengtao, Hong Shuxin, Lei Haiyan, Zang Chunyan, Ma Xiaodong, and Wu Chunyan. This document was first published in.2017 and this is the first revision. Thin section identification of shale and mudstone rocks

1 Scope

This document specifies the equipment and reagents, identification procedures, identification content, nomenclature, identification report and quality for shale and mudstone thin section identification. Require. This document is applicable to the identification of shale and mudstone thin sections in shale oil and gas exploration and development.

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. SY/T 5368 Rock thin section identification SY/T 5788 Specification for geological logging of oil and gas wells SY/T 5913 Rock slice preparation method

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 shale Rocks are formed by the consolidation of clastic sediments with a particle size less than 0.0625 mm and a content greater than 50%, and have lamination and foliation structural characteristics. 3.2 mudstone It is formed by the consolidation of clastic sediments with a particle size of less than 0.0625 mm and a content of more than 50%, and has no lamination and foliation structural characteristics. rock.

4 Equipment and Reagents

4.1 Equipment 4.1.1 A polarizing microscope with low, medium, and high magnification objectives and a photographic acquisition system should be provided, and a fluorescence system is preferred. 4.1.2 Polarized microscope objective lens. low magnification (1x or 1.25x, 2.5x), medium magnification (4x or 5x, 10x), high magnification (20x or 40x, 50x) times, 63 times). 4.1.3 Fluorescence system. UV or blue, green excitation fluorescence filter set with fluorescence color separator holder. 4.2 Reagents 4.2.1 Alizarin Red-S (Cl4H7NaO7S). analytical grade. 4.2.2 Potassium ferrocyanide (K3[Fe(CN)6]). analytical grade. 4.2.3 Hydrochloric acid (HCl). analytical grade. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 35206-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 35206-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 35206-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 35206-2025_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.

Question 5: Should I purchase the latest version GB/T 35206-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 35206-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.