海洋油气开发中连续管作业方法分析

Analysis of the CT Operation Method in Offshore Petroleum Development

分析各种海洋连续管修井作业方法,快速实现该技术的开发与应用,对实施我国海洋油气资源大开发具有重要价值和意义。在介绍海洋连续管作业特点的基础上,分析了海岸修井作业、海上联合式修井作业、海上独立式修井作业和海底式修井作业的特点及适应的工况。指出每种修井方法的实施都要注重相应专用设备的开发,作业前需要针对每口井的工况、所使用的平台状况、所处的海洋环境及气象条件等做详细的评估。建议我国应积极参照海上联合式及独立式连续管作业方法,升级改造现有油田使用设备,开发适合国内海洋油气作业特色及需要的连续管作业装备。

On the basis of an introduction of offshore CT operation features, the features and suitable operating conditions of marine workover, offshore combined workover, offshore independent workover and seafloor workover were analyzed. It is pointed out that implementation of every workover method should pay attention to the development of special equipment. A detailed assessment of the operating condition of every well, the condition of the platform used, the ocean environment and the meteorological condition should be conducted before operation. It is suggested that an active reference to the offshore combined and independent CT operation methods should be made to upgrade and improve the oilfield equipment available and to develop the CT operation equipment which is suitable for the domestic offshore operation feature.