Hazardous area surveillance manufacturer Synectics has won the contract to supply CCTV for a new Yemen gas pipeline.
The pipeline will supply feed gas at a rate of 1.1 billion cubic feet per day to the LNG plant. Spanning 320km, and with a diameter of 38 inches, the pipeline will be buried along its entire length. With a highest point of 1,705m above sea level, the pipeline will run from the processing centers at Al-Kamil Processing Unit (KPU) to the liquefaction plant at Balhaf on the Gulf of Aden. The main pipeline capacity has been designed for a two-train project.
Synectics will be supplying its innovative COEX TriMode camera stations complete with Wash, Wipe, and Presets. The TriMode camera station comprises a color/mono camera and a microbolometer thermal imager. This camera station was chosen as it provides complete surveillance under any conditions. The color camera will monitor the block valve stations and vent areas during the daytime, switching to black/white mode during dusk, and the thermal camera will be activated for night-time monitoring.
Passive Infra-Red (PIR) will be installed to provide additional security at each block valve station and vent area to identify any incursions. An Infra-Red (IR) lamp will be attached to each camera station and mounted on 12m towers. The IR lamp will be activated on alarm conditions to provide additional viewing capability at night, using the mono option of the camera. These lamps can also be activated under manual operation.
Predetermined presets (specified by the end user Yemen LNG Company Ltd) will be activated under alarm conditions and trigger the camera to switch to the area under intrusion. The Synectics CCTV system will also link to door alarms located at each block valve station and vent area.
The Synectics control system, which will be located at Balhaf, has been designed to be as automatic as possible, making full use of alarm data. All alarms will be logged at the control station, with manual control and selection requested by the operator as required. The alarms will be recorded using a network video recorder (NVR) and software, which will be situated in a separate location. Built-in redundancy will be provided for the control system, ensuring that there is no loss of service.
All power and data will be supplied via an optical Ethernet system.