Barrier Floating Silt Curtain for Channel Dredging oil fence

Basic structure

The offshore oil fence is mainly composed of the following parts:

‌Float‌: The part that provides buoyancy, usually placed inside or outside the surface of the oil boom, using air or buoyancy materials to provide buoyancy for the oil boom so that it can float on the water.

‌Skirt‌: Refers to the continuous part of the oil boom below the float, the main function is to prevent or reduce the escape of oil from under the oil boom.

‌Tension belt‌: A long belt component (such as chain, belt) that can withstand the horizontal tension applied to the oil boom, mainly used to withstand the tension generated by wind, waves, tides and towing.

‌Counterweight‌: Ballast that enables the oil boom to sag and improve the performance of the oil boom, generally made of steel, lead, or using water as ballast, it can keep the oil boom in an ideal state in the water.

‌Joint‌: A device permanently attached to the oil boom for connecting each section of the oil boom or other auxiliary facilities.

Performance indicators

The performance indicators of offshore oil fence mainly include:

‌Freeboard‌: The minimum vertical height of the boom above the waterline, used to prevent or reduce oil spills from splashing over the boom.

‌Draft‌: The minimum vertical depth of the surface below the waterline of the boom.

‌Height‌: The sum of the freeboard and draft of the boom.

‌Total height‌: The maximum vertical height of the boom.

‌Weight‌: The total weight of a fully assembled section of the boom including the boom joints.

‌Total buoyancy‌: The weight of the fresh water displaced by the boom when it is completely sunk without human water.

‌Floating weight ratio‌: The ratio of the total buoyancy of the boom to the total weight, indicating the ability of the boom to resume floating after being submerged in water.

‌Tensile strength‌: The breaking tensile force of the boom when it is tensilely broken.

The main functions of offshore oil fences include:

‌Containment and concentration‌: After an oil spill occurs, oil booms are used to contain and concentrate the oil spill for subsequent recovery and treatment.

‌Oil spill diversion‌: In order to facilitate recovery operations or to divert oil spills to designated locations, especially in rivers or nearshore areas with turbulent water flow, oil booms are usually deployed at a set angle to achieve oil spill diversion.

‌Preventing potential oil spills‌: In places where oil spills may occur or there is a risk of oil spills, oil booms are deployed in advance to prevent oil spills from spreading, and recovery measures are taken to recover the oil spills in the containment in a timely manner‌.

Offshore oil fences are widely used in the following fields:

‌Maritime ship terminals‌: During the loading and unloading process of ships, oil spills are prone to occur. Oil booms can effectively prevent the spread of oil and ensure water quality safety.

‌Oil depot‌: Deploying oil booms in the storage and transportation links can curb dangerous situations at the first time.

‌Rivers and Lakes‌: Setting up oil booms around rivers and lakes can effectively prevent the impact of oil pollution caused by ship accidents on the ecological environment‌