有杆采油导管架平台的安全性

基于结构极限工作状态和累积损伤理论，建立导管架平台增加载荷的安全评价标准。针对导管架式固定平台，建立海洋环境-有杆采油联合作用下的海洋平台力学模型。以LD某导管架平台为例，选用五十年一遇极值海洋环境载荷，基于安全准则得到目标平台加载阈值。按有杆采油的设计额定载荷，载荷加载后该平台的安全因数与加载前相比降低不超过3%,由此可见相似结构的导管架平台具有足够的结构强度承受有杆举升工艺所产生的附加载荷。

Safety of Jacket Platform of Rod Pumping

Based on the limit working state and cumulative damage theory of the structure, the safety evaluation standard for the increased load of the jacket platform is established. For the jacket platform, the mechanical model of the offshore platform under the joint action of the marine environment-rod pumping is established. Taken the LD jacket platform as an example, the extreme oceanic environmental load of 50 years is selected, and the loading threshold of the target platform is obtained based on the safety criterion. According to the design rated load of the rod pumping, the safety factor of the platform after loading is reduced by no more than 3% compared with that before loading, so that the jacket platform with similar structure is of sufficient structural strength to withstand the additional loads generated by the rod lifting process.