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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 35210.1-2023: Determination of isothermal adsorption/desorption of methane in shale - Part 1: Static volumetric method Status: Valid GB/T 35210.1: Historical versions
Basic dataStandard ID: GB/T 35210.1-2023 (GB/T35210.1-2023)Description (Translated English): Determination of isothermal adsorption/desorption of methane in shale - Part 1: Static volumetric method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: E11 Classification of International Standard: 75.020 Word Count Estimation: 15,191 Date of Issue: 2023-05-23 Date of Implementation: 2023-09-01 Older Standard (superseded by this standard): GB/T 35210.1-2017 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 35210.1-2023: Determination of isothermal adsorption/desorption of methane in shale - Part 1: Static volumetric method---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 75:020 CCSE11 National Standards of People's Republic of China Replace GB/T 35210:1-2017 Determination of isothermal adsorption/desorption capacity of shale methane Part 1: Static volumetric method Released on 2023-05-23 2023-09-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee table of contentsPreface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Method Summary 2 5 Instruments and materials 2 6 Sample preparation 3 7 Test Step 3 8 Data processing 5 9 Numerical rounding off and precision requirements 7 10 Experiment Report 8 Appendix A (informative) Static volumetric shale isothermal adsorption/desorption experiment report 9 Reference 10forewordThis 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 is part 1 of GB/T 35210 "Determination of Isothermal Adsorption/Desorption Capacity of Shale Methane": GB/T 35210 has been issued The following sections: --- Part 1: Static volume method; --- Part 2: Gravimetric method: This document replaces GB/T 35210:1-2017 "Shale Methane Isothermal Adsorption Determination Method Part 1: Volumetric Method", and Compared with GB/T 35210:1-2017, except for structural adjustment and editorial changes, the main technical changes are as follows: a) The definitions of "free space volume", "Ranks volume" and "Ranks pressure" have been changed (see 3:1, 3:3, 3:4, 3:1, 3:2,:2017 edition 3:3); b) Added the definitions of "reference cylinder volume", "excess adsorption capacity" and "absolute adsorption capacity" (see 3:2, 3:5, 3:6); c) Changed the summary of the determination method of shale methane isothermal adsorption/desorption (see Chapter 4, Chapter 4 of the:2017 edition); d) Increased the requirements for some instruments and equipment required for sample preparation (see 5:1:1); e) Added the requirements for the vacuum pump in the experimental device (see 5:1:2); f) The dry base sample preparation method has been changed (see 6:3, 6:3 of the:2017 edition); g) Changed the distribution of measured pressure points (see 7:3:2, 7:3:2 of the:2017 edition); h) Added the requirement to vacuumize the sample cylinder before the isothermal adsorption measurement (see 7:5:1); i) The calculation of excess adsorption at the pressure point of the isothermal adsorption measurement has been changed (see 8:2, 8:2 of the:2017 edition); j) The method for determining the gas phase density has been added (see 8:3:1); k) Changed the determination method of Langen volume and Lange pressure (see 8:3:2, 8:3 of the:2017 edition); l) Added the calculation of absolute adsorption capacity (see 8:3:3); m) The requirements for precision have been changed (see 9:2, Chapter 10 of the:2017 edition): Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Natural Gas Standardization Technical Committee (SAC/TC244): This document was drafted by: Exploration and Development Research Institute of Southwest Oil and Gas Field Branch of PetroChina Co:, Ltd:, PetroChina Natural Gas Co:, Ltd: Exploration and Development Research Institute, Sichuan Keyuan Engineering Technology Testing Center, China National Petroleum Corporation Southwest Oil Gas Field Branch Shale Gas Research Institute, Sinopec East China Oil and Gas Branch, Sinopec Petroleum & Chemical Corporation Oil Exploration and Development Research Institute Wuxi Petroleum Geology Research Institute, CNOOC Energy Development Co:, Ltd: Engineering Technology Branch: The main drafters of this document: Cai Changhong, Wang Li, Tian Chong, Duan Xianggang, Hu Zhiming, Yu Lingjie, Deng Ze, Gong Yue, Li Xiaoyue, Wang Dongqiang, Li Yangbing, Xu Shuang, Chen Hongbin, Chen Manfei, Zhao Dan: This document was first published in:2017, and this is the first revision:IntroductionShale methane isothermal adsorption experiment is the most widely used experimental method in evaluating the adsorbed gas content in shale reservoirs, and it is an important indicator of shale gas reserves: important basis for submission: According to different principles, the determination methods of isothermal adsorption/desorption of shale methane are divided into volumetric method and gravimetric method: GB/T 35210 aims to establish the criteria that are generally applicable to the determination of isothermal adsorption/desorption of shale methane, and consists of two parts: --- Part 1: Static volumetric method: --- Part 2: Gravimetric method: It has been 5 years since GB/T 35210:1-2017 was issued and implemented: During this period, the role of this standard has received more and more attention: Both theoretical research and practical cognition of experiments have changed: With the deepening of the research, it is generally believed that the adsorption amount measured by the experiment is the methane on the page The excess adsorption amount on the rock surface is far lower than the real adsorption amount, and it is necessary to convert the excess adsorption amount according to the methane adsorption phase density or adsorption phase volume is the absolute adsorption capacity: GB/T 35210:2-2020 has included related terms, definitions and theoretical models such as excess adsorption capacity and absolute adsorption capacity standard: Based on this, this revision has carried out in-depth research on experimental methods, sample preparation, data repeatability and reproducibility, and this document also Refer to the relevant provisions of GB/T 35210:2-2020 to ensure the comprehensiveness, operability and consistency of the relevant content of GB/T 35210: Determination of isothermal adsorption/desorption capacity of shale methane Part 1: Static volumetric method Important Note: This document does not address all safety issues related to its application: Before using this document, it is the user's responsibility to formulate corresponding safety and protection measures, and ensure compliance with the conditions stipulated in relevant national laws and regulations:1 ScopeThis document describes a static volumetric method for the determination of isothermal adsorption/desorption of methane in shale formations: This document applies to methane isothermal adsorption capacity of dry base shale samples, methane isothermal adsorption capacity of equilibrium water base shale samples, shale sample The determination of methane isothermal adsorption under formation conditions, and in the process of shale gas production, the absorption of gas in shale due to the decrease of formation pressure Determination of the adsorption isotherm of methane converted to free gas:2 Normative referencesThe contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: Preparation method of GB/T 474 coal sample GB/T 17747:2-2011 Calculation of Compressibility Factor of Natural Gas Part 2: Calculation by Molar Composition GB/T 19560-2008 Coal high pressure isothermal adsorption test method3 Terms and DefinitionsThe following terms and definitions apply to this document: 3:1 volumeoffreespace After the sample cylinder is loaded with shale samples and sealed, the space in the sample cylinder, the volume between the connecting pipeline and the valve are related to the sample particles and the filled volume: The difference in the volume occupied by the steel ball: 3:2 VR Refer to the sum of the volumes between the space in the cylinder, the connecting lines and the valves: 3:3 Langmuirvolume VL Absolute adsorption capacity at infinite pressure: [Source: GB/T 35210:2-2020, 3:3]: 3:4 Langmuirpressure Langmuirpressure PL The pressure corresponding to when the absolute adsorption capacity is 1/2 Rankine's volume: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 35210.1-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 35210.1-2023_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 35210.1-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 35210.1-2023 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. |
