双梯度钻井EC-Drill系统动力传输及控制单元研究

发布时间：2018-06-29 18:37

本文选题：EC-Drill钻井技术 + 深水钻井　；参考：《中国石油大学(华东)》2015年硕士论文

【摘要】：在深水钻井中,常规钻井技术既不经济也存在较大的钻井风险。双梯度钻井技术可以有效的解决在深水钻井中常规钻井技术遇到的钻井问题。在诸多的双梯度钻井系统中,建立在无隔水管钻井技术基础上的EC-Drill钻井技术得到广泛的工业应用,获得显著的经济和环境效益。本文主要结合国家科技重大专项——大型油气田及煤层气开发子课题海底泥浆举升钻井技术研究(2008ZX05026-001-12),开展适用于我国南海双梯度钻井EC-Drill系统设计、动力传输以及控制单元研究。主要研究进展如下:1.EC-Drill钻井技术原理及配套方案分析双梯度钻井技术的工作原理,结合我国南海500-1500m水深钻井作业环境特点,提出适用于我国南海浅水、深水EC-Drill钻井技术方案,该技术方案包括总体的实现方案、关键设备研究、钻井程序研究和主要技术特点等。提出EC-Drill钻井技术井控技术方案,研究井控技术的系统组成、操作程序以及EC-Drill井控特点。2.EC-Drill系统动力传输系统设计结合动力传输系统的设计原则,完成EC-Drill钻井系统动力传输系统设计方案。通过水力学研究,确定海底泥浆举升泵组水中位置,并计算系统输出功率,对EC-Drill钻井技术动力传输系统关键设备进行研究。分析动力系统设备特性和EC-Drill钻井技术的工作环境,提出通信系统初步设计方案。3.EC-Drill钻井试验平台设计在SMD试验平台的基础上进行改造,搭建EC-Drill钻井试验平台。分析EC-Drill钻井试验平台工作环境,设计EC-Drill钻井试验平台抗干扰系统。基于LabVIEW软件设计数据采集及储存模块、串行通信模块和控制模块,并通过试验检测系统运行状况以及软件控制效果。4.EC-Drill钻井系统控制器设计基于质量守恒定律和动量守恒定律,建立EC-Drill钻井系统的低阶钻井数学模型,采用现代控制理论方法,建立EC-Drill钻井系统状态空间表达式,并设计最小阶观测器的观测-状态反馈控制器,通过模拟仿真分析控制器的控制效果。
[Abstract]:In deep water drilling, conventional drilling technology is neither economical nor large drilling risk. Dual gradient drilling technology can effectively solve the drilling problems encountered in the conventional drilling technology in deep water drilling. In many dual gradient drilling systems, EC-Drill drilling technology based on the non septate drilling technology is widely used. Industrial application has gained significant economic and environmental benefits. This paper mainly combines the national science and technology major project, a large oil and gas field and the CBM opening project, to study the seafloor mud lifting drilling technology (2008ZX05026-001-12), which is suitable for the design of the EC-Drill system in the South China Sea dual gradient drilling, the dynamic transmission and the control unit. The main research progress is as follows: the principle of 1.EC-Drill drilling technology and its supporting scheme analysis the working principle of the dual gradient drilling technology. Combined with the characteristics of the 500-1500m deep drilling operation environment in the South China Sea, the technical scheme for the shallow water and deep water EC-Drill drilling in the South China Sea is proposed. The scheme includes the overall realization scheme and the key equipment research. The drilling program research and the main technical characteristics are put forward. The well control technical scheme of EC-Drill drilling technology is put forward, the system composition of well control technology, the operation program, the design principle of the dynamic transmission system of the EC-Drill well control characteristic.2.EC-Drill system power transmission system and the power transmission system are completed, and the design scheme of the power transmission system of the EC-Drill drilling system is completed. Through the hydraulic study, the water position of the subsea mud lifting pump group is determined and the output power of the system is calculated. The key equipment of the EC-Drill drilling technology power transmission system is studied. The characteristics of the power system and the working environment of the EC-Drill drilling technology are analyzed, and the design of the preliminary design scheme of the communication system,.3.EC-Drill drilling test platform, is proposed. On the basis of the SMD test platform, the EC-Drill drilling test platform is built, the working environment of the EC-Drill drilling test platform is analyzed, and the anti-jamming system of the EC-Drill drilling test platform is designed. Based on the LabVIEW software, the data acquisition and storage module, the serial communication module and the control module are designed, and the running condition of the test system is tested by the test system. The.4.EC-Drill drilling system controller is designed based on the law of conservation of mass and the law of conservation of momentum, the mathematical model of low order drilling in the EC-Drill drilling system is established. The state space expression of the EC-Drill drilling system is established by modern control theory method, and the observer state feedback controller of the minimum order observer is designed. The control effect of the controller is analyzed by simulation.
【学位授予单位】：中国石油大学(华东)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE52

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