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采修一体化导管架平台模块化扩展技术是适应油藏加密调整规划以及海上油田滚动开发的需要提出的。通过对采修一体化导管架平台进行有限元建模,本文从位移、应力响应等角度,分析了平台的抗震性能。计算结果表明:刚接情况下平台整体的应力水平要比铰接情况下的应力水平大。刚接和铰接两种工况下,平台自振频率近似相等,且位移变化数值均比较小。遭受地震作用时,在水平、竖直方向产生的振动和弯曲通常是海洋平台结构断裂受损的主要原因。
The modular expansion technology of the integrated jacket jacket platform is proposed to meet the needs of reservoir encryption adjustment planning and offshore oilfield rolling development. Through the finite element modeling of the integrated jacket pipe jacking platform, the seismic performance of the platform is analyzed from the perspectives of displacement and stress response. The calculation results show that the stress level of the platform as a whole is higher than the stress level of the hinge under the condition of just connected. Under the two conditions of rigid connection and hinged connection, the natural frequency of the platform is approximately equal, and the values of the displacement changes are relatively small. When subjected to earthquakes, the vibration and bending in the horizontal and vertical directions are usually the main reasons for the damage of the offshore platform structure.