Recently, persistent heavy rainfall in North China triggered floods and geological disasters across Beijing, Tianjin, and Hebei. A critical DN200 crude oil pipeline operated by North China Oilfield in Wen’an, Langfang, was at severe risk. Had the flood ruptured the pipeline, causing a crude oil spill, it would have not only disrupted production but also
Project Overview This offshore gas pipeline isolation project involves pressure containment operations during the relocation of CNOOC’s gas pipeline for the new Fuzhou-Xiamen railway construction. Key tasks include: Critical Workscope: Pipeline Specifications: Parameter Value Diameter φ406×8mm Material L360M steel Design Pressure 4.0 MPa Operating Pressure 2.0 MPa Content Natural gas Coating 3PE anti-corrosion Project Timeline & Stakeholders:
Canalización en caliente y taponamiento para la reubicación del gasoducto de CNOOC Leer Más »
Project Overview In September 2021, inline inspection (ILI) of the Xingxian Gas (CBM) Utilization Project and Yuanping Second Gas Source Connection Project revealed critical deformations requiring pipe replacement: This non-stop pipeline isolation solution ensures continuous CBM supply during repairs. Key Technical Details: Parameter Value Diameter Ф813×12.5mm Material L450 steel Design Pressure 8.0 MPa Operating Pressure 4.0 MPa Content Natural
Taponamiento y sustitución del oleoducto de metano en capas de carbón (CBM) Shenmu-Anping Leer Más »
Project Overview This gas pipeline relocation is necessitated by the highway expansion of the Fuquan Expressway connector and planned Luocheng Road routing in Cangshan District, Fuzhou City. Approximately 1,450m of existing pipeline is encroached by planned ramps and roundabouts, with some sections directly beneath highway interchange pile foundations. The new route spans 1,821.7m (Pile AP-01 to AP-52). Key Construction Details: Pipeline Specifications: Parameter Value
Gas Pipeline Relocation Project for Fuquan Expressway Connector Widening Leer Más »
Project Overview This high-pressure gas pipeline relocation project involves constructing 551m of new pipeline to replace an existing line. The new route runs: Key Construction Details: Technical Parameters: Parameter Value Diameter D355.6×6.3mm Design Pressure 6.3 MPa (GA1 Class) Content Natural gas Coating 3PE reinforced Project Timeline & Stakeholders:
Reubicación del gasoducto de alta presión y proyecto de aislamiento de la presión Leer Más »
Resumen del proyecto Para satisfacer la demanda del mercado, este proyecto de gasoducto de interconexión requiere añadir un nuevo gasoducto DN508 a la línea de gas activa Ф508 existente. Debido a los requisitos de suministro continuo aguas abajo, la construcción utilizará la tecnología de derivación en caliente y taponamiento para evitar paradas. Detalles clave de la construcción:
Hot Tapping y Plugging para el proyecto de interconexión del oleoducto chino-ruso Leer Más »
Project Scope This pressure pipeline subcontracting involves 12 hot tapping operations, including: Key Technical Specifications: Pipeline Dimensions Material Design Pressure Operating Pressure Special Requirements Gas Main (D717) 717.4×19.1mm X60 Class 600 6.0-7.0 MPa Pigging compatible Gas Main (D660) 660×30mm L415Q Class 600 6.0-7.0 MPa Thick-wall welding Critical Components: Technical Challenges: ✅ Thick-wall welding procedures (AWS D1.1 compliant)✅ High-pressure hot tapping (6-7MPa live
Subcontratación de servicios de toma en caliente para un proyecto EPC Leer Más »
Project Overview This pipeline safety remediation project involves 1.04km of new pipeline construction along the Ningbo-Yongning Crude Oil Pipeline (Pile 181#+350m to 181#+880m) to eliminate encroachment risks and ensure long-term operational safety. Key Construction Details: Pipeline Specifications: Parameter Value Diameter Ф762×10.3mm (D762mm) Material L415 steel Design Pressure 8.5 MPa Operating Pressure 1.0 MPa Content Crude oil Corrosion Protection 3PE coating Construction Schedule &
Project Overview This crude oil pipeline relocation project is located in Weishan County, Jining City, Shandong Province, addressing safety hazards along the Luning Pipeline. Key Construction Details: Pipeline Specifications: Parameter Value Diameter φ720×8.7mm (D711mm) Material L360 steel Design Pressure 6.0 MPa Operating Pressure 2.5 MPa Content Crude oil Corrosion Protection Asphalt coating + 3G tape Construction Schedule & Location:
Project Overview This project addresses safety hazards caused by pipeline encroachment near residential areas in Mayidian Village, Wuyuan Township, Yueyang County, Hunan Province. The existing pipeline, originally installed via directional drilling under National Highway 107, poses risks due to its proximity to populated areas. Key Construction Details: Pipeline Specifications: Parameter New Pipeline Existing Pipeline Diameter D406.4mm D406.4mm Wall Thickness
Proyecto de sustitución de tuberías y saneamiento de invasiones Leer Más »
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