... that theoceanographic conditions are carefully considered prior to deepwater operationsto ensure the work can be carried out safely. Thorough risk assessment requiresknowledge of existing bottom currents, an assessment of potential masstransport events and turbidity currents, and understanding of conditions likelyto...

.... Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of OTC copyright. Abstract Since strong bottom currents with long durations have been observed in many deepwater developments, scour...

... bottom currents. Introduction A variety of methods during the past few decades have been used to map the sea floor in the northern part of the Gulf of Mexico. Until recently, the highest resolution data sets with the most extensive coverage have been surface-towed, multibeam, side-scan-sonar (NOAA...

.... embedment hydrodynamic force lateral displacement resistance half-wave cycle midstream oil & gas time series bottom velocity diameter pipe model stability submarine pipeline pipe upstream oil & gas pipe movement offshore pipeline soil resistance bottom current simulation software...

... (1967). Wave and bottom current values are combined explicitly in an analytic expression which permits direct computation of bed load transport. These procedures provide an overvie'w of subsea trench infilling without resolving the details of flow perturbations caused by the trench or the time history...

... exploration. At present strong bottom currents are causing pipeline-maintenance problems in the upper Cook Inlet petroleum-producing area. Although the bottom currents in lower Cook Inlet are weaker, possible migration of the large sand waves there must be considered before making any seafloor installation...

.... benthic organism cuttings transport bottom current drilling fluids and materials exxon co sea bottom photograph marine environment accumulation louisiana mexico santa barbara platform gulf upstream oil & gas otc 3040 organism larson sediment fragment zingula OTC 3040 FATE...