In nearshore oilfield development, artificial island is the better method because of the economic and technical convenience. But compared with the traditional way of reclaiming land from beaches, the construction of artificial island should be given with more attention to the ocean hydrological and dynamic changes, the mutual implication between engineering zone and marine environment. It will spend more time and money to deal with the sedimentation scour and deposition around the island. So the island construction should consider the sedimentation transportation and environmental safety.

In this paper, a preliminary analysis on marine dynamic variation was presented based on the analysis of available data. Numerical model of tidal currents with wave effects was established in order to analyze the influence of nearshore oilfield artificial island on the environment. Sedimentation transportation under the coactions of wave and tide was investigated in order to analysis the stability of artificial island and marine dynamic geomorphology.

By taking a practical example of a typical artificial island, the effects of the construction of artificial island on environment and sand transportation were investigated. The artificial island should build with appropriate plane layout and make full advantages of the existing topographic and hydrodynamic condition. The construction of artificial island must minimize impact on environmental condition to reduce sedimentation scour and deposition and enhance the safety of oilfield.

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