摘要
井口吸入模块是无隔水管泥浆闭式循环钻井技术(RMR)系统的关键组成部分,其在海底的工作状态对钻井工作有着一定程度的影响。本文设计了一种开放式井口吸入模块,建立了三维模型,通过莫里森方程计算内波流载荷,采用P-y曲线法对土壤条件进行弹簧等效模拟,对井口吸入模块进行了静力学分析和模态分析。研究表明,采用无隔水管泥浆闭式循环钻井技术时,井口装置的相对位移较正常深水钻井可大幅减小,吸入模块及其连接部位应力应变小,由井口吸入模块的模态分析得出了固有频率,为井口吸入模块的尺寸优化及无隔水管泥浆闭式循环钻井技术的应用提供参考,为大洋钻探向深海发展提供技术支撑。
The wellhead suction module is one of the key equipment of riserless mud recovery drilling(RMR)system,and the status when working on the seabed has a certain impact on the drilling work.In this paper,an open wellhead suction module is designed,a three‑dimensional model is established,morison equation is used to calculate the internal wave current load,the P-y curve method is used to simulate the spring equivalent of the soil conditions,and the wellhead suction module is analyzed statically and modally.The research shows that the displacement of wellhead equipment is greatly reduced compared with that of the normal deep‑water drilling,and the stress and strain of suction module and its connecting parts are smaller when using RMR drilling technology.The intrinsic frequency of wellhead suction module is obtained from the modal analysis of wellhead suction module,which provides referencial value for the size optimization of wellhead suction module and the application of the RMR technology,and provides technical support for drilling to deep ocean.
作者
王嘉瑞
秦如雷
冯起赠
陈浩文
许本冲
卢秋平
刘晓林
WANG Jiarui;QIN Rulei;FENG Qizeng;CHEN Haowen;XU Benchong;LU Qiuping;LIU Xiaolin(Institute of Exploration Techniques,CAGS,Langfang Hebei 065000,China;Guangzhou Marine Geological Survey,CGS,Guangzhou Guangdong 510075,China)
出处
《钻探工程》
2023年第6期45-55,共11页
Drilling Engineering
基金
国家重点研发计划项目“深海无隔水管泥浆回收循环钻井技术装备研发”(编号:2021YFC2800802/2021YFC2800803)
工业和信息化部高技术船舶项目“天然气水合物钻采船(大洋钻探船)总装建造关键技术研究”(编号:CJ05N20)
广东省海洋经济发展(海洋六大产业)专项资金项目“天然气水合物储层改造增产与测试技术支撑”(编号:GDNRC[2022]44)。
