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Delivery: <= 10 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 16783.1-2025: Petroleum and natural gas industries - Field testing of drilling fluids - Part 1: Water-based fluids Status: Valid GB/T 16783.1: Historical versions
Basic dataStandard ID: GB/T 16783.1-2025 (GB/T16783.1-2025)Description (Translated English): Petroleum and natural gas industries - Field testing of drilling fluids - Part 1: Water-based fluids Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: E13 Classification of International Standard: 75.020 Word Count Estimation: 82,872 Date of Issue: 2025-08-29 Date of Implementation: 2025-12-01 Older Standard (superseded by this standard): GB/T 16783.1-2014 Issuing agency(ies): State Administration for Market Regulation; Standardization Administration of China GB/T 16783.1-2025: Petroleum and natural gas industries - Field testing of drilling fluids - Part 1: Water-based fluids---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/GBT16783.1-2025 ICS 75.020 CCSE13 National Standards of the People's Republic of China Replaces GB/T 16783.1-2014 Oil and gas industry drilling fluid Field Testing Part 1.Water-based Drilling Fluid Part 1.Water-based fluids (ISO 10414-1.2008, MOD) Published on 2025-08-29 Implemented on December 1, 2025 State Administration for Market Regulation The State Administration for Standardization issued a statement. Table of ContentsPreface V Introduction VII 1.Scope 1 2 Normative References 1 3.Terms and Definitions 1 4.Symbols and Abbreviations 1 4.1 Symbol 1 4.2 Abbreviations 4 5.Drilling fluid density 4. 5.1 Principle 4 5.2 Instruments 4 5.3 Measurement Procedure 5 5.4 Calculation 5 6 Supplementary Methods for Drilling Fluid Density Measurement 6.1 Principle 6 6.2 Instruments 6 6.3 Measurement Procedure 7 6.4 Calculation 7 7 Viscosity and Shear Stress 7.1 Principle 7 7.2 Viscosity determination using a Markovnikov funnel 7 7.3 Determination of viscosity and shear force using a direct-reading viscometer 8 8.Filtration loss 9. 8.1 Principle 9 8.2 Low Temperature and Low Pressure Filtration Loss Test 9 8.3 High Temperature and High Pressure (HTHP) Filtration Loss Test 10 9.Water, oil, and solids content. 13 9.1 Principle 13 9.2 Instrument 13 9.3 Measurement Step 14 9.4 Calculate 14 10 Sand content 15 10.1 Principle 15 10.2 Instruments 15 10.3 Measurement Procedure 15 11 Methylene Blue Capacity 16 11.1 Principle 16 11.2 Medicines and Instruments 16 11.3 Measurement Procedure 16 11.4 Calculation 17 12 pH value 18 12.1 Principle 18 12.2 Medicines and Instruments 19 12.3 pH value determination procedure 20 12.4 Electrode Maintenance 20 13.Alkalinity and lime content 21 13.1 Principle 21 13.2 Medicines and Instruments 21 13.3 Determination of phenolphthalein alkalinity and methyl orange alkalinity of filtrate 21 13.4 Determination of Phenolphthalein Alkalinity in Drilling Fluids - Procedure 22 13.5 Calculation based on Pf and Mf ion concentrations 22 13.6 Estimation of Lime Content 22 14 Chloride ion content 22 14.1 Principle 22 14.2 Medicines and Instruments 23 14.3 Measurement Procedure 23 14.4 Calculate 23 15 Total hardness based on calcium ions. 23 15.1 Principle 23 15.2 Medicines and Instruments 23 15.3 Measurement Procedure 24 15.4 Calculate 25 16 Lubrication performance 25 16.1 Principle 25 16.2 Medicines and Instruments 25 16.3 Measurement Procedure 25 16.4 Calculate 26 Appendix A (Informative) Structure Numbering Comparison Table 27 Appendix B (Informative) Summary of Technical Differences and Their Reasons Table 29 Appendix C (Informative) Sampling, Inspection, and Rejection 30 C.1 Overview 30 C.2 Sampling of bagged powdered materials (30 mm) C.3 Sampling of bulk powdery materials 30 C.4 Preparation of test samples 30 C.5 Comparison Test 30 C.6 Test 30 C.7 Reject 30 C.8 Re-inspection 31 Appendix D (Informative) Well Site Sampling 32 D.1 Overview 32 D.2 Bottom flow sampling 32 D.3 Sampling by grasping method 33 Appendix E (Informative) Methods for removing air or other gases from drilling fluid before testing 34 E.1 Principle 34 E.2 Instrument 34 E.3 Operation Step 34 Appendix F (Informative) Measurement of Static Shear Force 35 Using a Float Shear Force Gauge F.1 Principle 35 F.2 Instrument 35 F.3 Determination Step 35 F.4 Calculate 35 Appendix G (Informative) Water-based Drilling Fluid Report Format 36 Appendix H (Normative) Determination of High-Temperature and High-Pressure Filtration Loss of Water-Based Drilling Fluids Using a Screw-Fixed Cup-Cap Type Permeability Plugging Instrument 37 H.1 Principle 37 H.2 Safety Precautions 37 H.3 Instruments – Screw-fixed cup-cap type permeability plugging device (PPA) 38 H.4 High Temperature and High Pressure (HTHP) Filtration Loss Test Procedure 40 H.5 Test Completion and Instrument Disassembly 42 H.6 Test Report 43 Appendix I (Normative) Determination of High-Temperature and High-Pressure Filtration Loss of Water-Based Drilling Fluids Using a Threaded Cup Cap Type Permeability Plugging Instrument 45 I.1 Principle 45 I.2 Safety Precautions 45 I.3 Instrument – Threaded Cup Cap Type Permeability Patch Apparatus (PPA) 46 I.4 High Temperature and High Pressure (HTHP) Filtration Loss Test Procedure 48 I.5 Test completion and instrument disassembly 50 I.6 Test Report 51 Appendix J (Informative) Resistivity Measurement 52 J.1 Principle 52 J.2 Instrument 52 J.3 Measurement Step 52 J.4 Calculation 52 Appendix K (Informative) Drill Pipe Corrosion Ring Test 53 K.1 Principle 53 K.2 Medicines and Instruments 53 K.3 Determination Step 53 K.4 Description of visual inspection 54 K.5 Calculation 54 Appendix L (Informative) Inspection and Calibration of Glass Measuring Instruments, Thermometers, Viscometers, Distillation Beakers, and Drilling Fluid Densitometers 55 L.1 Principle 55 L.2 Instrument Calibration 55 L.3 Calibration Step 55 Appendix M (Informative) Chemical Analysis of Water-Based Drilling Fluids 59 M.1 Calcium ion content 59 M.2 Magnesium ion content 60 M.3 Calcium sulfate content 60 M.4 Sulfide ion content 62 M.5 Carbonate content 64 M.6 Potassium ion content (concentration higher than 5000 mg/L) 67 M.7 Potassium ion content (concentration below 5000 mg/L) 69 References 71ForewordThis document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document is Part 1 of GB/T 16783 "Field Testing of Drilling Fluids for the Petroleum and Natural Gas Industry". GB/T 16783 has been published. The following parts were included. ---Part 1.Water-based Drilling Fluids; ---Part 2.Oil-based drilling fluids. This document replaces GB/T 16783.1-2014 "Field Testing of Drilling Fluids for Petroleum and Natural Gas Industry - Part 1.Water-based Drilling Fluids". Compared with GB/T 16783.1-2014, the main technical changes in the "Liquid" standard, apart from structural adjustments and editorial modifications, are as follows. a) The scope has been changed (see Chapter 1, Chapter 1 of the.2014 edition); b) The terms and definitions of “ACS reagent grade,” “Darcy,” “quarters,” “instantaneous filtration loss,” and “sampling tube method” have been removed (see [link]). Chapter 2 of the.2014 edition); c) Some symbols have been deleted, the descriptions of some symbols have been changed, and some symbols and their descriptions have been added (see 4.1, 3.1 in the.2014 edition); d) The abbreviations “AA”, “ACS”, and “ASTM” were removed; the abbreviation “EDTA” was changed; and the abbreviation “STPB” was added (see...). 4.2 (3.2 in the.2014 edition); e) The densitometer calibration method and supplementary density determination method have been revised (see 5.2.1, 6.2.1, 6.3; 4.2.1 and 5.2.1 in the.2014 edition). 5.3); f) Increased requirements for the temperature control accuracy of the thermometer (see 5.2.2, 6.2.2, 7.2.1.4, 7.3.1.3, J.2.3); g) The procedure for determining viscosity and shear force using a direct-reading viscometer has been modified (see 7.3.2, 6.3.2 of the.2014 edition); h) The unit of plastic viscosity has been changed (see 7.3.3, 6.3.3 in the.2014 edition); i) The principle and test procedure for filtration loss have been modified (see Chapter 8, Chapter 7 of the.2014 edition); j) The instrument “vernier caliper or steel ruler” has been added (see 8.2.1.4, 8.3.1.7); k) Added information such as the stirring speed of the high-speed stirrer (see 8.3.1.6, H.3.6, I.3.6); l) The principles, instruments, and determination procedures for measuring water, oil, and solid content have been modified (see 9.1, 9.2.2, 9.3.1; 8.1 and 8.2.2 in the.2014 edition). 8.3.1); m) The requirements for fine steel wire bristles have been changed (see 9.2.3, 8.2.3 in the.2014 version); n) The procedure for determining sand content has been modified (see 10.3.4, 9.3.4 in the.2014 edition); o) The reagent purity requirements for methylene blue have been changed (see 11.2.1, 10.2.1 in the.2014 version); p) The procedure for determining methylene blue has been modified (see 11.3.1, 10.3.1 in the.2014 edition); q) The instrument requirements, measurement procedures, and electrode maintenance methods for pH measurement have been changed (see 12.2.1, 12.2.8, 12.3, and 12.4). (Versions 11.2.1, 11.2.8, 11.3, and 11.4 of the.2014 edition) r) Additional requirements for test water have been added (see 12.2.2, 14.2.6) s) The reagent purity requirements for calcium carbonate have been changed (see 14.2.5, 13.2.5 in the.2014 edition); t) The procedure for determining total hardness as a calcium ion content has been modified (see 15.3.4, 14.3.4 in the.2014 edition); u) A chapter on "Lubrication Performance" has been added (see Chapter 16); v) The requirements for high-temperature, high-pressure filtration loss testing of water-based drilling fluids have been changed (see H.2, H.3, H.4, H.5, H.6, I.2, I.3, I.4, I.5). (2014 editions I.2, I.3, I.4, I.5, I.6, J.2, J.3, J.4, J.5) w) The recording time points have been changed (see H.4.4.2, I.4.4.2, and I.4.4.2 and J.4.4.2 in the.2014 version); This document is modified to adopt ISO 10414-1.2008 "Field testing of drilling fluids for the oil and gas industry - Part 1.Water-based drilling fluids". This document has undergone significant structural adjustments compared to ISO 10414-1.2008.A table comparing the structural numbering changes between the two documents is available below. Appendix A. This document differs significantly from ISO 10414-1.2008.The relevant clauses are indicated in the margins using vertical markers. Straight lines (|) are marked. A summary of these technical differences and their reasons can be found in Appendix B. The following editorial changes have been made to this document. ---Some symbol representations have been changed, and some symbols using US units and related content have been deleted (see 4.1,...). 5.4, 7.3, 9.4, 11.4, 13.6, 14.4, F.4, K.5, J.3, M.3, M.6, M.7) ---The abbreviation "STPB" has been added, and the abbreviations "AA", "ACS", and "ASTM" have been removed (see 4.2); ---The unit for plastic viscosity has been changed, and the "note" containing the requirement has been changed to a segment (see 7.3.3); ---The content regarding valve closure and pressure relief, which is redundant with section 8.3.3.8, has been removed (see section 8.3.3.9); ---Change the information description paragraph to the corresponding "Note" (see 15.2.1, 15.3.4, H.3.1.1, H.4.2, H.6.4, I.4.2, I.6.4); ---The reference standardization document has been modified (see C.1); ---The report format for water-based drilling fluids has been changed (see Table G.1); ---Change the next level of the untitled bar to a paragraph (see H.2, H.3, I.2, I.3); ---The grade of sulfuric acid has been changed (see M.4.2.1, M.5.2.7). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the National Technical Committee on Standardization of Petroleum and Natural Gas (SAC/TC355). This document was drafted by. China Petroleum Engineering Technology Research Institute Co., Ltd., and China Petroleum Bohai Drilling Engineering Co., Ltd. China National Petroleum Corporation Western Drilling Engineering Co., Ltd., China Petroleum & Chemical Corporation Petroleum Engineering Technology Research Institute, China Oilfield Services Limited Limited Liability Company, China University of Geosciences (Beijing), and Dagang Oilfield Branch of China National Petroleum Corporation. The main drafters of this document are. Zhang Yan, Zhang Zhilei, Li Dongyang, Wang Ren, You Qing, Chen Leixu, Miao Hailong, Li Daqi, Wu Yicheng, and Zhu Guoqiang. Li Long, Wang Lihui, Li Sheng, Fang Yanwei, Geng Yuan, Sun Qiang, Wang Leilei, Yang Zheng This document was first published in.1997; it was revised and published in parts in.2006.This document corresponds to GB/T 16783.1- 2006 "Field Testing of Drilling Fluids for the Oil and Gas Industry - Part 1.Water-based Drilling Fluids"; Second revision in.2014; This is the third revision. Revised.introductionDrilling fluid is a general term for various circulating fluids that meet the needs of drilling operations during oil and gas drilling. It is essential for oil and gas drilling workers. As drilling becomes increasingly difficult, drilling fluid technology plays an increasingly important role in ensuring safe, high-quality, and rapid drilling. The essential role. my country has established a national standard system to support drilling fluid testing. Within this system, GB/T 16783 "Petroleum and Natural Gas" is included. The "Industrial Drilling Fluids" standard aims to specify in detail the field testing methods for drilling fluids in the oil and gas industry, and is proposed to consist of two parts. ---Part 1.Water-based drilling fluids. The purpose is to specify the field testing procedures for water-based drilling fluids. ---Part 2.Oil-based drilling fluids. The purpose is to specify the field testing procedures for oil-based drilling fluids. To ensure the quality of field testing of drilling fluids, my country first issued GB/T 16783 "Field Testing Procedures for Water-Based Drilling Fluids" in.1997. The preface states that two versions of GB/T 16783.1 have been published successively. GB/T 16783.1-2014 has been in effect for over ten years and is a standard for water-based drilling fluids. Standardized testing methods for basic properties such as rheology, filtrate loss, and filtrate testing can effectively evaluate the drilling fluid's ability to carry cuttings and maintain wellbore stability. Power, after years of promotion and application, has been well received by engineering technicians and other users. With the advancement of drilling in my country, new technological demands and... Suggestions continue to emerge. Therefore, it is indeed necessary to revise and improve GB/T 16783.1 to continuously adapt to domestic and international practices for field testing of water-based drilling fluids. New legal changes and new demands from the drilling industry ensure the smooth implementation of on-site testing of drilling fluids for the oil and gas industry. Oil and gas industry drilling fluid Field Testing Part 1.Water-based Drilling Fluid Warning. As with other laboratory procedures that require the use of potentially hazardous chemicals, users of this document must possess the relevant knowledge. The personnel are aware of and have received training on the use and handling of hazardous chemicals. Users are responsible for complying with local, regional, and national regulations regarding laboratory personnel. All applicable requirements, as well as local health, safety, and environmental regulations. 1.Scope This document specifies the field testing procedures for water-based drilling fluids. a) Drilling fluid density; b) Viscosity and shear stress; c) Filtration loss; d) Water, oil, and solids content; e) Sand content; f) Methylene blue capacity; g) pH value; h) Alkalinity and lime content; i) Chloride ion content; j) Total hardness as measured by calcium ions; k) Lubrication coefficient, mud cake adhesion coefficient. This document applies to field testing of water-based drilling fluids.2 Normative referencesThe contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document. GB/T 6682 Specifications and test methods for water used in analytical laboratories 3.Terms and Definitions This document does not contain any terms or definitions that need to be defined. 4.Symbols and Abbreviations The following symbols and abbreviations apply to this document. 4.1 Symbols A --- Total surface area of the corrosion ring, cm2 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 16783.1-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 16783.1-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 10 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 16783.1-2025_English with my colleagues?Answer: Yes. 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