GB/T 33294-2025 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33294-2025	RFQ	ASK	3 days	Testing of deepwater well cement	Valid
GB/T 33294-2016	279	Add to Cart	3 days	Testing of deep water well cement	Valid

Basic data

Standard ID: GB/T 33294-2025 (GB/T33294-2025)
Description (Translated English): Testing of deepwater well cement
Sector / Industry: National Standard (Recommended)
Date of Implementation: 2025-12-01
Older Standard (superseded by this standard): GB/T 33294-2016

GB/T 33294-2016: Testing of deep water well cement

---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.
Testing of deepwater well cement ICS 75.020 E13 National Standards of People's Republic of China Test method for deep - water oil well cement (ISO 10426-3..2003, Petroleumandnaturalgasindustries- Part 3. Testingofdeepwaterwelcementformulations, MOD) 2016-12-13 released 2017-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface III 1 Scope 1 2 normative reference document 1 3 Terms and definitions 1 4 Sampling 1 5 Preparation of cement slurry 1 6 deep water cement strength test 2 Deep - water cementing mud slurry thickening time test 5 8 static or stirring filtration test 6 Test on stability of cement slurry under deep water condition Determination of rheology and gel strength by rotational viscometer 11 Downhole fluid compatibility test 8

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the re-drafting method to modify the use of ISO 10426-3..2003 "oil and gas industry cementing cement and materials Part 3. Deepwater cementing test ". There are technical differences between this standard and ISO 10426-3..2003, and the terms involved in these differences have passed through the margin The vertical single line (丨) of the position is marked. The technical differences between this standard and ISO 10426-3..2003 are as follows. --- re-adjust the structure of Chapter 6 "6.4 atmospheric pressure thickener mixing cement slurry, 6.5 pressurized thickening device mixing cement slurry, 6.6 non-destructive Sound wave test, 6.7 destructive test, 6.8 determination of compressive strength ", and delete ISO 10426-3..2003" 6.5.1, 6.5.2, 6.5.3, 6.5.4, since the above is repeated in the same chapter (see Chapter 6). --- 6.5.5.1 test mold, 6.5.5.2 compressive strength testing machine, 6.5.5.3 bottom plate and cover plate, 6.5.5.4 pound rod, 6.5.5.5 test mold density Seal, 6.5.5.6 release agent. "Modified as" 6.7.1.1 test mode, compressive strength testing machine, floor and cover, pound rod, test mold seal Grease, release agent "(see 6.7.1.1). --- modified "1 Scope" because ISO 10426-3..2003 "1 scope" discussion is too general, not specific enough to increase the scope of application Circumcision description (see Chapter 1); --- on the normative reference documents, this standard has made a technical differences in the adjustment to meet China's technical conditions, adjust the situation The situation is reflected in Chapter 2, "Normative references", as follows. • The reference standard "ASTMC109 Standard Test Method for Compressive Strength of Hydraulic Cement Mortar" was deleted (see Chapter 2). Replace GB 10426-2..2003 with GB/T 19139-2012 ISO 10426-2..2003 (see chapter 2). --- modified ISO 10426-3..2003 in 7.5.4 in the definition of thickening time, the "thickening time refers to the slurry from the temperature rise to open (70Bc or 100Bc) is changed to "the time of the thickening is from the beginning of the temperature rise to Consistency reaches 100Bc for the elapsed time. ", More in line with China's current actual situation, more operational, easy to implement (see 7.5.4). This standard has also made the following editorial changes. - re-edited the preface in ISO 10426-3..2003; --- Removed the contents of ISO 10426-3..2003; - the introduction in ISO 10426-3..2003 was deleted; --- Change the standard name to "Deepwater oil well cement test method"; --- Conversion ISO 10426-3..2003 Central and Africa non-statutory units of measurement, are using the national statutory units of measurement; - the relevant term in the text refers to "GB/T 19139-2012" in the expression; --- removed the reference. This standard is proposed by the National Petroleum and Natural Gas Standardization Technical Committee (SAC/TC355). The drafting unit of this standard. CNOOC Oilfield Services Co., Ltd. The main drafters of this standard. Wang Yongsong, Wang Qingshun, Song Maolin, Zhao Hu, Feng Kemeng, Wang Tongyou, Luo Yuwei. Test method for deep - water oil well cement

1 Scope

This standard specifies the test method for oil well cement and cement mixtures under deep water conditions (average water depth greater than 500 m). This standard is applicable to the design and performance evaluation of oil well cement for deep water oil and gas injection cementing operations. Oil well cement can be based on (but not Limited to) the type and type of oil well cement specified in GB/T 10238.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 10238 Oil well cement (ISO 10426-1..2009, MOD) GB/T 19139-2012 Test method for oil well cement (ISO 10426-2..2003, MOD)

3 terms and definitions

GB/T 19139-2012 Definitions of terms and definitions apply to this document.

4 Sampling

The standard slurry test for this standard requires the following. pure cement or cement mix, solid and liquid admixture, mixed water. Sampling method should be Ensure that the test conditions and test materials are as consistent as possible. Mix the water, cement or cement mixture temperature should be used with a precision of ± 2 ° C Thermocouple or thermometer. The temperature of the test material shall be recorded. The thermocouple should be calibrated once a year and the thermometer should be tested once a year. The sampler and sampling method shall comply with the requirements of GB/T 19139-2012.

5 Preparation of cement slurry

5.1 Preparation of conventional cement slurry Prepare the test sample according to GB/T 19139-2012 Chapter 5. The temperature of the cement sample, admixture and mixed water should be the same as the field temperature Differ by no more than ± 2 ℃. The temperature of the mixing vessel should be close to the temperature of the mixed water in the design of the slurry. The stirrer should be calibrated annually, 4000r/min speed error of ±.200r/min, 12000r/min speed error of ± 500r/min. For larger volumes of cement, see another method of preparing a cement slurry in Appendix A of GB/T 19139-2012. Density of cement slurry The determination shall be carried out in accordance with the provisions of Chapter 6 of GB/T 19139-2012. 5.2 Preparation of special cement slurry Cementing in deepwater environments may require the use of special grout, including foamed cement or microbead cement. Special cement slurry Preparation and testing should use the most appropriate method, or by the service provider and the user recognized method. ......

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