简化联顶管柱在安装水下采油树油管挂中的应用

摘要

The simplified landing string is introduced to Liuhua 4-1 Field for the installation of subsea Christmas tree (XT)tubing hanger,considering the low pressure in reservoir and absence of shallow gas.After demonstrating the feasibility of the simplified landing string system,the main equipment of this system is introduced,including the simplified landing string,umbilical system,tubing hanger running tool and tubing hanger.Then the control factors and restriction conditions are represented,followed by the detailed description of installation steps.Finally,a comparison is made between the application of conventional landing string and simplified landing string.The results can offer a reference for the exploitation of marginal subsea fields.%针对流花4-1项目的水深和地层特性，引入简化联顶管柱方案进行水下采油树油管挂的安装。在对方案适用性进行对比和论证后，介绍了该方案的主要设备，包括简化联顶管柱、脐带缆系统、油管挂下入回收工具和油管挂，然后提出了安装过程中的主要控制参数与限制条件，并对实际现场使用过程进行了详细描述，最后阐述了该方案的使用效果。该方案的成功应用可为日后的深水边际油田开发提供借鉴和参考。