Q/BQB 263-2023 (Q/BQB263-2023, QBQB 263-2023, QBQB263-2023) & related versions
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| Q/BQB 263-2023 | English | 419 |
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Cost-effective tubing and casing for CO2-containing or CO2 & H2S-containing environment
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| Q/BQB 263-2020 | English | 225 |
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| Q/BQB 263-2018 | English | 280 |
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Q/BQB 263-2023: PDF in English (QBQB 263-2023)
Q/BQB 263-2020
BQB
ENTERPRISE STANDARD OF
BAOSHAN IRON AND STEEL CO., LTD
Replacing Q/BQB 263-2018
Cost-Effective Tubing and Casing for
CO2-Containing or CO2 & H2S-Containing Environment
ISSUED ON: JUNE 09, 2020
IMPLEMENTED ON: AUGUST 10, 2020
Issued by: Baoshan Iron and Steel Co., Ltd.
Table of Contents
Foreword ... 3
Introduction ... 4
1 Scope ... 5
2 Normative References ... 5
3 General ... 5
4 Expression of Designation, Terms, Definitions, Symbols and Abbreviations . 6
5 Information Required to be Provided by the Purchaser ... 7
6 Manufacturing Method ... 7
7 Material Requirements ... 7
8 Dimensions, Weights, Tolerances, Tube Ends and Defects ... 10
9 Coupling ... 10
10 Inspection and Testing ... 11
11 Marking ... 13
12 Coating and Protection ... 14
13 Files ... 14
Appendix A (Informative) Recommended Test Conditions for CO2 Corrosion
Test of Autoclave ... 15
Cost-Effective Tubing and Casing for
CO2-Containing or CO2 & H2S-Containing Environment
1 Scope
This Standard specifies the delivery technical conditions for Baoshan Iron and Steel
Co., Ltd.'s cost-effective CO2 and CO2+H2S corrosive resistant tubing and casing.
This Standard is applicable to cost-effective seamless tubing and casing (hereinafter
referred to as tubing and casing) used in the medium or mild CO2 corrosive
environment or CO2+H2S compound corrosive environment in oil and gas exploitation
of the petroleum and natural gas industry.
The steel grades of tubing and casing in this Standard include: BG80-3Cr, BG90-3Cr,
BG95-3Cr and BG110-3Cr, which are suitable for CO2 corrosive environments;
BG80S-3Cr, BG90S-3Cr and BG95S-3Cr, which are suitable for CO2+H2S compound
corrosive environment.
The tubing and casing specified in this Standard include three product specification
levels (PSL1, PSL2, PSL3).
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) is applicable to this document.
API SPEC 5CT:2018 Specification for Casing and Tubing
NACE TM0177-2016 Laboratory Testing of Metals for Resistance to Sulfide Stress
Cracking and Stress Corrosion Cracking in H2S Environments
3 General
Unless otherwise specified in this Standard, this Standard adopts the corresponding
provisions of steel grades of API SPEC 5CT:2018 standard given in Table 1. In general,
the products shall be supplied according to the requirements of Level PSL1 of the
5 Information Required to be Provided by the
Purchaser
When ordering tubing and casing manufactured in accordance with this Standard, the
purchaser shall specify this standard number "Q/BQB 263-2020" and steel grade on
the order. For other information that the purchaser needs to provide, please refer to
the provisions of Subclauses 5.1, 5.2 and 5.3 of API SPEC 5CT:2018 (if applicable).
6 Manufacturing Method
Steel shall be smelted in an electric furnace or converter; and methods such as
secondary refining shall be used to control the content of harmful substances in the
steel and the shape and size of inclusions. The steel shall be processed for grain
refinement. The steel contains at least one or more grain refinement elements, such
as a certain amount of aluminum, niobium, vanadium or titanium, to refine the austenite
grains of the steel.
The tubing and casing shall be hot-rolled seamless steel tubes.
The tubing and casing shall be delivered in quenched and tempered state.
7 Material Requirements
7.1 Chemical compositions
The product brand (steel grade) and chemical compositions (smelting analysis and
finished product analysis) shall comply with the provisions of Table 2.
Table 2
7.2 Tensile performance
The room temperature tensile properties of the product shall comply with the provisions
of Table 3. The elongation after break shall meet the requirements of the corresponding
8 Dimensions, Weights, Tolerances, Tube Ends and
Defects
8.1 Dimensions
Available specifications for tubing and casing indicate the outer diameter of
60.32mm~177.80mm (2-3/8″~7″), wall thickness of 4.83mm~15.88mm
(0.190″~0.625″). After negotiation between the supplier and the purchaser and
indicated in the contract, other specifications can also be supplied.
8.2 Tube end
Unless otherwise specified in the contract, the tubing and casing shall use the threads
specified in API SPEC 5CT:2018. According to the requirements of the purchaser, after
negotiation between the supplier and the purchaser and indicated in the contract, other
special threads can also be used. The specific requirements are stipulated by the
agreement between the supplier and the purchaser.
8.3 Others
Codes and specifications, weight, length, straightness, size and weight allowable
deviation, diameter requirements, defects, etc. shall comply with the provisions of the
corresponding steel grade specified in API SPEC 5CT:2018 (see Table 1).
9 Coupling
Tests on items such as finished product analysis, tensile test, impact test, full wall
thickness hardness test and sulfide stress corrosion cracking test of the coupling are
carried out on the coupling blank; and shall comply with the provisions of Clauses 7
and 10. The steel grades of the tube body and the matching coupling shall comply with
a The specimen size shall be selected as large as possible.
b When small-sized specimens are used, the acceptance criteria shall be negotiated and determined by the purchaser and the manufacturer.
The general practice is: the acceptance value of the K1SSC average value and single value of the small-sized specimen is 15% (when
B=6.35mm) or 20% (when B=4.76mm) lower than the acceptance value of the standard-sized specimen. This general practice shall be used
when the agreement does not specify the acceptance value.
......
| Standard ID | Q/BQB 263-2023 (Q/BQB263-2023) | | Description (Translated English) | Cost-effective tubing and casing for CO2-containing or CO2 & H2S-containing environment | | Sector / Industry | Chinese Industry Standard | | Classification of Chinese Standard | QBQ | | Word Count Estimation | 12,117 | | Date of Issue | 2023-04-09 | | Date of Implementation | 2023-07-01 |
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