无隔水管闭式循环钻井液举升泵动力学仿真分析  

Dynamic Simulation Analysis of Riserless Mud Recovery Drilling Fluid Lifting Pump

作　　者：秦如雷 陈浩文 许本冲 李昌平[4] 梁楠 Qin Rulei;Chen Haowen;Xu Benchong;Li Changping;Liang Nan(Institute of Exploration Technology,Chinese Academy of Geological Sciences;Innovation Base for Automatic and Intelligent Drilling Equipment,Geological Society of China;Technology Innovation Center for Deep Exploration Drilling Equipment,China Geological Survey;School of Mechanical Engineering and Electronic Information,China University of Geosciences)

机构地区：[1]中国地质科学院勘探技术研究所,河北省廊坊市2096880 [2]中国地质学会自动化智能化钻探装备创新基地 [3]中国地质调查局深部探测钻探装备技术创新中心 [4]中国地质大学(武汉)机械与电子信息学院

出　　处：《石油机械》2025年第2期59-64,共6页China Petroleum Machinery

基　　金：国家重点研发计划项目“深海钻井泥浆回收安全应急关键装备研发”(2023YFC2813102)。

摘　　要：深水无隔水管闭式循环钻井液举升泵(简称举升泵)采用中置悬挂方式安装,其启动和运转时均会对上下两端连接的钻井液返回管线产生反扭矩和振动,影响举升泵及返回管线的稳定性和安全性。为此,对举升泵进行动力学仿真分析,建立了多级举升泵流道模型和流固耦合模型;对单级泵的反扭矩进行理论计算,并与数值仿真结果进行对比,验证仿真模型的正确性;通过多级举升泵的动力学仿真,分析了举升泵运行过程中的反扭矩、振动及轴向力与泵运转速度的关系。研究结果表明:随着转速的增大,举升泵运行过程中产生的反扭矩及轴向力增大、转子振幅先增大后减小,并得出了实时和额定功率下举升泵的反扭矩、轴向力和振动。研究结论可为举升泵及连接的返回管线设计和性能优化提供指导,提高深海钻井效率和安全性。The deepwater riserless mud recovery drilling fluid lifting pump(lifting pump for short)is installed in a mid-mounted suspension manner.During start-up and operation,it generates back torque and vibration on the drilling fluid return pipeline connected at both ends,affecting the stability and safety of the lifting pump and return pipeline.In the paper,first,dynamic simulation analysis was conducted on the lifting pump to build a multi-stage lifting pump flow channel model and a fluid-solid coupling model.Second,theoretical calculation was conducted on the back torque of single stage pump,and compared with the numerical simulation results,verifying the correctness the simulation model.Finally,dynamic simulation of multi-stage lifting pump was conducted to analyze the relationship between the back torque,vibration,axial force and pump operating speed during the operation of the lifting pump.The research results show that as the rotation speed increases,the back torque and axial force generated during the operation of the lifting pump increase,and the rotor amplitude increases first and then decreases;meanwhile,the back torque,axial force and vibration of lifting pump in real time and at rated power are obtained.The research conclusions provide guidance for the design and performance optimization of lifting pumps and connected return pipelines,improving the efficiency and safety of deep-sea drilling.

关 键 词：无隔水管闭式循环钻井 深水钻井 钻井液举升泵 动力学仿真 流固耦合 

分 类 号：TE952[石油与天然气工程—石油机械设备]