GB/T 28055-2023 in English

1. Standard Overview

GB/T 28055-2023 "Technical Specification for Steel Pipeline Pressure Plugging" is the latest revised technical standard for steel pipeline pressure plugging in my country, which is applicable to the opening and plugging of oil and gas pipelines and other medium pipelines in a closed state.

2. Standard formulation background and technological evolution

Compared with the 2011 version, the new version of the standard adds advanced technical requirements such as hydraulic active plugging, two-stage sealing plugging and intelligent plugging, and comprehensively updates the classification, installation requirements and safety specifications of plugging heads.

3. Standard implementation recommendations

1. Preliminary preparation:

• Comprehensively investigate the technical parameters of the pipeline to ensure that they meet the requirements of the specification.
• Select appropriate plugging technology and equipment according to the characteristics of the medium and the operating requirements.
• Organize professional training to ensure that operators are familiar with the new standards and technical requirements.

2. Implementation process:

• Strictly follow the standard requirements to select the plugging operation point and open the hole.
• Strengthen the welding quality inspection of the bypass pipeline to ensure that the pressure test is qualified.
• Implement intelligent monitoring, especially in complex terrain and high-risk areas.

3. Post-management:

• Establish and improve the technical file management system after the plugging operation.
• Regularly maintain and inspect key equipment such as plugging heads and splint valves.
• Summarize the implementation experience, optimize the plugging process flow, and improve construction efficiency.

4. Safety and environmental precautions

The standard particularly emphasizes the equipment cold protection measures in extremely cold weather and the safety requirements for operations in thunderstorms. At the same time, the discharge of media must be strictly controlled during the plugging operation to prevent environmental pollution, and intelligent monitoring methods must be used to ensure the safety of the operation.