SY/T 6543.1-2008 Technology specification for underbalanced drilling-Part 1:Liquid phase

SY/T 6543.1-2003 As-of-yet-unpublished English translation: "Specification for Underbalanced Drilling Technology Part 1: Design Methodology" SY/T 6543.2-2003 Unsaturated Balancing Drilling Technology Specification Part 2: Requirements for Wellhead Pressure Control Devices and Surface Equipment Installation SY/T 6543.3-2005 SY/T 6543.3-2005 Borehole Fracturing Techniques Specification Part 3: Construction Procedures for Borehole Fracturing

SY/T 6543-2019 SY/T 6543-2019 Borehole Elimination Techniques for the Lack of Balance in Technology Specification。

GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres—Part 1:General requirements GB 3836.1-2010 Explosive atmospheres—Part 1:Equipment—General requirements GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements SY 5974-2007 Drilling site, equipment, and operation safety technical regulations SY 5035-1991 Crane clamp SY/T 5035-2004 Hang-ring, hanging hook, hanging clamp SY 5127-1992 SY 5127-1992 Oil Wellhead Equipment - Casing Head SY/T 5225-2019 Petroleum and natural gas drilling, development, storage and transportation safety production technical regulations for fire and explosion prevention SY/T 5225-2012 Oil and natural gas drilling, development, storage and transportation safety production technical regulations for fire and explosion prevention SY/T 5225-2005 Drilling, development, storage and transportation safety production technical regulations for fire and explosion prevention in the oil and natural gas industry SY 5290-1991 SY 5290-1991 Petroleum Drilling Pipe Joints SY/T 5323-2016 Drilling and production equipment for the oil and natural gas industry, including devices for throttling and well-bailing SY/T 5323-2004 Flushing and pressure control systems SY/T 5466-2013 Drilling Preparation and Well Site Layout Technical Requirements SY/T 5466-1997 SY/T 5466-1997 Pre-drilling engineering technical conditions SY 5466-1992 SY 5466-1992 Drilling Pre-technology Engineering Conditions SY/T 5466-2004 Drilling Preparation Engineering and Well Site Layout Technical Requirements SY/T 5957-1994 Wellsite electrical installation technical requirements SY/T 5964-2019 Drilling well control device combination, installation debugging and usage specifications SY/T 5964-2003 Drilling control equipment assembly, installation debugging, and maintenance SY/T 5964-2006 Combination installation adjustment and maintenance of well-control equipments SY/T 6228-2010 Recommended safety practices for oil and gas well drilling and workover operations SY/T 6228-1996 SY/T 6228-1996 Recommended practices for occupational safety in drilling and workover operations for oil and gas wells SY/T 6277-2017 Personal Protection Guidelines for Hydrogen Sulfide Environments SY 6277-1997 Sulfur-bearing oil and gas fields: H2S monitoring and personal safety protection regulations SY/T 6277-2005 SY/T 6277-2005 Sulfur-containing oil and gas field hydrogen sulfide monitoring and personal safety protection regulations SY/T 6426-1999 Drilling Control Technology Regulations SY/T 6426-2005 Drilling Control Technology Regulations SY/T 6509-2023 SY/T 6509-2023 Drilling Rods for Square Section。 SY/T 6509-2012 SY/T 6509-2012 Drilling Rods for Square Section。 SY/T 6509-2000 Drilling rod。