SY/T 7754-2024 in English
VALIDTechnical Requirements for Production Operation of Surface Facilities in Gas Storage Reservoirs
- Issued on:2024-09-24
- Implemented on:2025-03-24
- File Format:PDF
- Delivery:Via email within 2~4 business days
$358.00
| Standard No: | SY/T 7754-2024 |
| Document status: | VALID |
| Title in English: | Technical Requirements for Production Operation of Surface Facilities in Gas Storage Reservoirs |
| Title in Chinese: | 储气库地面设施生产运行技术要求 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 2~4 business days |
| Issued on: | 2024-09-24 |
| Implemented on: | 2025-03-24 |
| Chinese Classification: | E24-Natural gas |
| Professional Classification: | SY-Oil & Gas |
| Related Keywords: | technical requirements
technical requirements detection cycle control gas storage reservoirs introduction analysis automatic operation triethylene glycol unit lean standard technical framework system module key |
Introduction
Analysis of standard technical framework
| System module | Key technical requirements | Detection cycle | Control indicators |
|---|---|---|---|
| Compressor unit | Vibration value <18mm/s, sealing air pressure difference 100-500kPa | 4h record/annual inspection | Anti-surge valve automatic operation |
| Triethylene glycol unit | Lean liquid temperature 170-200℃, pH7.0-7.5 | Real-time monitoring | Solution loss <15mg/m³ |
| Cathode protection | GB/T21448 compliance | New construction 1 year/conventional 5 years | Annual inspection of high consequence area |
Core technology innovation
High and low pressure boundary management requires the establishment of a dynamic ledger and the setting of dual pressure monitoring, and the low-pressure end safety valve is forced to be put into use. When the pressure difference exceeds the design value by 10%, a special analysis needs to be initiated. Salt cavern gas storage needs to pay special attention to the gas-liquid interface monitoring during the gas injection and brine discharge stage, and the operation should be terminated when it is 0.5m away from the brine discharge pipe.
JT valve dew point control device for the first time clearly defines the temperature drop control standard, requiring the operating temperature not to be lower than the lower limit of the pipe material, and supporting a dynamic adjustment mechanism for the concentration of hydrate inhibitor injection.
Corrosion protection system
A three-level protection strategy is adopted:
- External anti-corrosion layer detection (new construction 1 year/conventional 5 years)
- Cathode protection parameter measurement (GB/T21246)
- Internal corrosion fixed-point thickness measurement (annual inspection + abnormal encryption)
Implementation Suggestions
1. Digital O&M: Establish a SCADA system that integrates real-time warnings for 21 types of key parameters, such as compressor vibration and triethylene glycol pH value
2. Maintenance window optimization: Electrical facilities should be maintained during the balance period, and maintenance of gas trees should be carried out during the low-pressure period of the formation
3. Personnel training: Focus on strengthening special training for high-risk operations, such as high- and low-pressure boundary operations and ethylene glycol regeneration temperature control
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