Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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SY/T 6466-2000 Evaluation procedure for high temperature property of set oil well cement 180.0 via email in 1~3 business day superseded
SY/T 5547-2012 Operation maintenance and management for positive displacement mud motor 180.0 via email in 1~3 business day valid
SY 5668-1993 via email in business day superseded
SY/T 5350-2009 Evaluation procedure for foaming agents used in drilling fluids 60.0 via email in 1~3 business day valid
SY/T 6240-2008 Chemical analysis method of barite 540.0 via email in 1~5 business day abolished
SY/T 5841-1993 150.0 via email in 1~3 business day abolished
SY/T 5373-2009 Diagram and symbol for down hole drilling tools and operation 420.0 via email in 1~3 business day valid
SY/T 5840-2007 Recommended practice for laboratory testing of bridging materials for drilling fluids 120.0 via email in 1~3 business day valid
SY/T 5416.3-2007 Measurement and inspection regulation of directional surveying instruments Part 3: GYRO 270.0 via email in 1~3 business day superseded
Q/CNPC 115-2006 Specification of Drilling Operating for Oil and Gas Well with Sulfide 195.0 via email in 1~3 business day valid
SY/T 6543.1-2008 Technology specification for underbalanced drilling - Part 1:Liquid phase 270.0 via email in 1~3 business day valid
SY/T 6677-2007 Calibration method of mnd retort assembly 180.0 via email in 1~3 business day valid
Q/CNPC 88-2003 135.0 via email in 1~3 business day valid
SY/T 6676-2007 The calibration method of drilling fluid density meter 180.0 via email in 1~3 business day valid
SY/T 6544-2003 Property requirements for well cement slurries 270.0 via email in 1~3 business day abolished
GB/T 16783-1997 Procedure for field testing water-based drilling fluids 630.0 via email in 1~8 business day abolished
SY 5339-1988 270.0 via email in 1~3 business day abolished
SY/T 6397-1999 Evaluation procedure of drilling fluid biocides 90.0 via email in 1~3 business day valid
GB 5005-1985 90.0 via email in 1~3 business day superseded
SY 5089-1992 1050.0 via email in 1~10 business day valid
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