This Standard specifies the requirements for dehydration method, process calculation, equipment selection, corrosion protection, and other aspects of natural gas dehydration engineering during the construction of oil and gas field ground.
This Standard applies to the design of newly-built, extended and rebuilt engineering of natural gas dehydration devices. The design and main parameters of dehydration with glycol absorption method, adsorption method and low temperature method may be selected according to this Standard.
In addition to this Standard, the design of natural gas dehydration shall also meet the requirements of current national mandatory standards.
2 Normative References
The following documents contain provisions which, through reference in this standard, constitute provisions of this Standard. For dated references, subsequent amendments to (excluding corrigendum), or revisions of, any of these publications shall not apply. However, all parties coming to agreements based on this Standard are encouraged to investigate the possibility of applying the latest editions of these documents. For undated references, the latest editions of the normative references .
GB 150 Steel Pressure Vessel
GB 151 Tubular Heat Exchangers
GB/T 8770 Determination of Dynamic Adsorbed Water for Molecular Sieve
GB 8978 Integrated Wastewater Discharge Standard
GB/T 10504 Molecular Sieve 3A
GB 18047 Compressed Natural Gas as Vehicle Fuel
GB 12348 Standard of Noise at Boundary of Industrial Enterprises
GB 20426 Discharge Standard for Coal Industry
GB 501 83 Code for Fire Protection Design of Petroleum and Natural Gas Engineering
GB 50251 Code for Design of Gas Transmission Pipeline Engineering
HG/T 2765.2 Silica Gel Type C (Wide Pore Silica Gel)
JB/T 4710 Steel Vertical Vessels Supported By Skirt
SY 003 1 Safety Regulations for Heaters Used in Petroleum Industry
SY/T 0059 Technical Specification of Controlling Weld Hardness of Steel Equipment to Prevent Sulfide Stress Cracking
SY/T 0077 Design Specification of Natural Gas Liquid Recovery
SY/T 0538 Specification for Tubular Heater
SY/T 0540 Type and Basal Parameters for Heater Used in Petroleum Industry
SY/T 0599 Metallic Material Requirements - Resistance to Sulfide Stress Cracking and Stress Corrosion Cracking for Gas Surface Equipment
SY/T 6276 Petroleum and Natural Gas Industries - Health, Safety and Environmental Management Systems
SY/T 6331
Technical Specification for Design of Energy Conservation for Gas Field Surface Engineering
Environmental Protection Law of the People's Republic of China
No. 22 Decree of the President of the People's Republic of China
Production Safety Law of the People's Republic of China
No. 70 Decree of the President of the People's Republic of China
Energy Conservation Law of the People's Republic of China
No. 77 Decree of the President of the People's Republic of China
Safety Management and Supervision Regulation for Pressure Pipe
Issued by the Ministry of Labor
Supervision Regulation on Labor Safety and Hygiene of Construction Project (Engineering)
No.2 Decree of the Ministry of Labor
Supervision Regulation on Safety Technology for Pressure Vessel [2001] No.154 of the Bureau of Quality and Technical Supervision
3 Terms and Definitions
For the purposes of this Standard, the following terms and definitions apply.
3.1 Associated gas
It refers to the natural gas that generates with crude oil and is collected with the crude oil simultaneously.
3.2 Well gas
It refers to the natural gas that is collected from pure gas field and condensate gas field.
3.3 Water dew point
