Blue Hive Metocean Analysing and Estimating Method

    Project Code: P414
    Built as a method to obtain joint densities and characteristics of the metocean data and its resultant return periods, this invention addresses offshore designing for platforms. As a frequency domain analysis encompassing wind speeds, wave heights and wave currents as major parameters in the design of offshore structures, the consideration of wind blown sea waves, state of the sea related to wind parameters and the possibility of correlating winds and wave loading conditions on structures exist. This estimation of extreme sea conditions require an understanding of oceanographic science and coastal engineering, that is potentially viable in the field of oil and gas.
Project Overview
Offshore designing has nowadays become very common for platforms. Wind speeds, wave heights and wave current are major parameters in designing offshore structures and have been traditionally considered as a combination of environmental loads during the design phase. For different climate regions of the world; winds, waves and currents are generated in different directions by un-correlated sources and with different intensities.

It is observed that a current, which recurs after say 100 years may not occur simultaneously with the wave height or wave speed with the same recurring period. In the state of art, the design periods have been varied between 50 and 100 years, however they are not considered for their joint effects, but more so as a combination or addition of factors.

However, joint considerations have been made for various regions where 100 year conditions for a given element may be associated with 1 – 10 year return period for other elements. Sea waves are caused by wind blowing for a sufficiently long time, the state of the sea is related to wind parameters and the possibility of correlating wind and wave loading conditions on structures exist.

Estimating extreme sea conditions require an understanding of oceanographic science and coastal engineering. By determining the local oceanographic environment and employing coastal engineering knowledge, a process of predicting extreme sea value conditions can be determined. Hence, a separate joint density study has to be conducted for local application in sea waters for operation in this region. The present research have come out with a method for obtaining the joint density characteristics of the metocean data and its resultant return periods.


You may also like