Design And Development Of The Visualization System For Subsea Production System Based On Unity3D

The development of offshore oil and gas field involves a wide range of professional division of labor,professional,high degree of coordination,complex and harsh operating conditions,with characteristics of high difficulty,high technology,high input and high risk.In this paper,an underwater production system is taken as an example.A virtual visualization system based on Unity3 D is designed and developed to combine the virtual reality technology and marine oil and gas development to provide operational assistance for offshore oil and gas field development.Firstly,the development basis of the visualization system is studied,including the development mode,the application form and the typical engineering facilities and composition of the subsea production system.It also includes a systematic analysis of functional requirement,functional design and establishing the system development process.On this basis,the construction of the visualization system scene is completed,including the development of the underwater production equipment and the marine environment.Secondly,the development of the basic function module of the visualization system is carried out,including the roaming function module,the model library module and the autonomous layout module.Then the development of the visualization system expansion function module is carried out,including the automatic generation of pipeline technology based on artificial intelligence and the development of leakage simulation module based on particle system.Finally,creating a start scene and packaging the work,in order to complete the development of subsea production visualization system.The pipeline generation module deeply studied the surface generation technology of the pipeline.It uses the torus to construct the surface of the pipeline,and analyzes the pipeline path constraint and develops the appropriate pipeline path algorithm to realize the automatic generation and obstacle avoidance function.Leakage simulation module has been developed for computational fluid dynamics simulation.It divides the leaking process into a jet stage and a diffusion stage.The influencing factors such as rate of fire,aperture and ocean current during the leakage process are simulated.The simulation results show that the leakage velocity and the leakage aperture are negatively correlated with the time of arrival,and the maximum ocean current velocity is positively correlated with the sea surface time.According to the CFD simulation results,the visualization of leakage based on particle system is developed and the visualization simulation function of leakage based on external input is realized.