The formation of ice on water in cold regions has significant impact upon the design and operation of offshore structures, underwater pipelines, hydro/nuclear power-generation facilities, and vessel routeing. BMT’s approach to the development of solutions to problems caused by ice formation is based upon a combination of fieldwork, research, and analysis, and the application of innovative thinking.
Participating in the Ice Field Program conducted by AgipKCO, BMT recently
used ground-penetrating radar to collect ice thickness data over 800km in several transects in the Caspian Sea, and deployed a laser scanner to map the surface profiles of stamukhi (grounded rubble fields) and rubble pileups at drilling structures. This unique data set is being analysed in order to provide input to the drilling structure design process.
Ice conditions affect not only an offshore structure itself, but the pipeline systems within and surrounding the rig. BMT has also recently provided recommendations for pipeline burial depths along the “÷over-the-top’ pipeline route in the Arctic for British Petroleum, on behalf of the Alaska Gas Producers Pipeline Team. Pipeline integrity and arctic expertise were combined to perform statistical and deterministic analyses of physical limits imposed by ice strength and structural assessments of pipelines during ice-gouging events.