NorFra Pipeline Installation Project: Pretrenching, Seabed Levelling, and Landfall Dredging and Civi
NorFra Pipeline Installation Project: Pretrenching, Seabed Levelling, and Landfall Dredging and Civil Works

A 42" diameter, 835 km-long, high pressure natural gas pipeline was laid from Norway to France in record time and under budget.

Cement and Soft Mud Mixing Technique Using Compressed Air-Mixture Pipeline: Efficient Solidification
Cement and Soft Mud Mixing Technique Using Compressed Air-Mixture Pipeline: Efficient Solidification

The 1998 IADC Award-winning paper, presented at the WODCON XV in Las Vegas, explains an efficient new technique being utilised in Japan.

“Dilution”, A New Technology Used at the Pearl River Estuary Pipeline Installation Project
“Dilution”, A New Technology Used at the Pearl River Estuary Pipeline Installation Project

Unable to excavate a conventional open trench because of dumping limitations, a new technique was developed to install the pipeline through “diluted” soil.

Solids Transportation in a Long Pipeline Connected with a Dredge
Solids Transportation in a Long Pipeline Connected with a Dredge

Prediction of the aggregation process and an accurate estimate of the critical velocity in a pipeline may lead to more effective control of the diesel engines and other types of drives.

Besòs Long Sea Outfall, Barcelona
Besòs Long Sea Outfall, Barcelona

To satisfy EC bathing water quality directives, a new, longer outfall was needed. Dredgers had to reckon with the recreational importance of Spain’s beaches, plus the existence of an operative gas pipeline.