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Database: 189759 (26 Oct 2025)
SY/T 6543.2-2009 English PDF
SY/T 6543.2: Evolution and historical versions
Standard ID
Contents [version]
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Standard Title (Description)
Status
PDF
SY/T 6543.2-2009
English
759
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4 days [Need to translate]
Technology specification for underbalanced drilling. Part: Gas phase
Obsolete
SY/T 6543.2-2009
SY/T 6543.2-2003
English
719
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5 days [Need to translate]
Specification for underbalanced drilling technology - Part 2: The outfit requirements of the wellhead pressure control and surface equipment
Obsolete
SY/T 6543.2-2003
PDF similar to SY/T 6543.2-2009
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Basic data
Standard ID
SY/T 6543.2-2009 (SY/T6543.2-2009)
Description (Translated English)
Technology specification for underbalanced drilling. Part: Gas phase
Sector / Industry
Oil & Gas Industry Standard (Recommended)
Classification of Chinese Standard
E13
Classification of International Standard
75.020
Word Count Estimation
19,168
Date of Issue
2009-12-01
Date of Implementation
2010-05-01
Older Standard (superseded by this standard)
SY/T 6543.1-2003; SY/T 6543.2-2003; SY/T 6543.3-2005
Quoted Standard
GB 3836.1; SY/T 5127; SY/T 5225; SY/T 5290; SY/T 5323; SY/T 5466; SY/T 5957; SY/T 5964; SY 5974-2007; SY/T 6228; SY/T 6277-2005; SY/T 6426; SY/T 6509
Regulation (derived from)
National Energy Board Notice 2009 No. 2; industry standard filing Notice 2010 No. 2 (No. 122 overall)
Issuing agency(ies)
National Development and Reform Commission
Summary
This standard specifies: Gas UBD design principles, equipment requirements and technical rules. This standard applies to land vapor underbalanced drilling, including gas drilling, spray foam drilling and drilling.
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