深水海底连续管钻机起升系统设计与仿真研究

Design and Simulation of the Hoisting System of Coiled Tubing Drilling Rigs for Underwater Operations

以深水连续管钻机为对象,针对连续管钻机不能下套管的问题,设计了一种以液压绞车、钢丝绳和滑轮组合且与连续管钻机集成的起升系统。该系统在保证深水连续管钻井作业的同时,还能够实现下套管作业。构建了起升系统的三维模型,建立了深水连续管钻机的作业流程;给出了关键部件的设计参考并进行验证,以保证系统的安全性;并针对不同作业工况,基于ADAMS进行了起升系统的动力学仿真,分析了连续管钻机的运动特性及钢丝绳的受力,验证了起升系统的运动和动力学特性。设计的深水连续管钻机起升系统具有结构紧凑、连续起下的特点,相比传统钻机在深水浅层作业时更有优势,对后续深水钻机的研究具有实际意义和参考价值。

In order to address the issue of the inability of the coiled tubing drilling rig to lower the casing,a hoisting system was designed which integrates hydraulic winches,wire ropes,and pulleys with the coiled tubing drilling rig.The system is capable of ensuring the successful completion of underwater drilling operations while simultaneously facilitating the requisite casing operations.A three-dimensional model of the hoisting system has been constructed.The operational process of the underwater coiled tubing drilling rig has been established.The design of the system's critical components was provided and verified to ensure the safety of the overall system.A dynamic simulation of the lifting system was conducted based on ADAMS for a variety of operating conditions.The motion characteristics of the coiled tubing drilling rig and the stress on the steel wire rope were analyzed.The motion and dynamic characteristics of the hoisting system were verified.The designed underwater coiled tubing drilling rig has the characteristics of a compact structure and continuous lifting,which are advantageous in deepwater and shallow operations compared to traditional drilling rigs.It has practical significance and reference value for future research on underwater operation drilling rigs..