GB/T 43231-2023 Petroleum and natural gas industries—Selection and adaptability evaluation of casing for shale oil and gas wells

GB/T 6394-2002 Metal-methods for estimating the average grain size GB/T 6394-2017 Determination of estimating the average grain size of metal GB/T 9253-2022 Petroleum and natural gas industries—Threading,gauging and thread inspection of casing,tubing,and line pipe threads GB/T 9253.1-1999 Threads on rotary shouldered connections for petroleum industry GB/T 9253.2-1999 Petroleum and natural gas industries—Threading,gauging,and thread inspection of casing,tubing and line pipe threads GB/T 9253.2-2017 Petroleum and natural gas industries—Threading,gauging and thread inspection of casing,tubing,and line pipe threads GB/T 9253.8-1995 Drill pipe threads GB/T 9253.9-1995 Drill pipe thread gauges GB/T 10561-1989 Steel—Determination of content of non-metallic inclusion—Micrographic method using standard diagrams GB/T 10561-2005 Steel—Determination of content of nonmetallic inclusions—Micrographic method using standards diagrams GB/T 10561-2023 Determination of content of nonmetallic inclusions in steel—Micrographic method using standard diagrams GB/T 17745-1999 Petroleum and natural gas industries—Care and use of casing and tubing GB/T 17745-2011 Petroleum and natural gas industries—Care and use of casing and tubing GB/T 18052-2000 Gauging and inspection of casing, tubing and line pipe threads GB/T 19830-2005 Petroleum and natural gas industries—Steel pipes for use as casing or tubing for wells GB/T 19830-2011 Petroleum and natural gas industries—Steel pipes for use as casing or tubing for wells GB/T 19830-2017 Petroleum and natural gas industries—Steel pipes for use as casing or tubing for wells GB/T 19830-2023 Petroleum and natural gas industries—Steel pipes for use as casing or tubing for wells GB/T 20657-2006 Petroleum and natural gas industries—Formulae and calculation for casing, tubing, drill pipe and line pipe properties GB/T 20657-2011 Petroleum and natural gas industries—Equations and calculations for the properties of casing,tubing,drill pipe and line pipe used as casing and tubing GB/T 20657-2022 Petroleum and natural gas industries—Formulae and calculations for the properties of casing,tubing,drill pipe and line pipe used as casing or tubing GB/T 21267-2007 Petroleum and natural gas industries—Procedures for testing casing and tubing connections GB/T 21267-2017 Petroleum and natural gas industries—Procedures for testing casing and tubing connections GB/T 21267-2024 Petroleum and natural gas industries—Procedures for testing casing and tubing connections GB/T 18052-2025 Methods of gauging and inspection of casing,tubing and line pipe threads