智能井井下层间流体控制系统研究

发布时间：2019-02-13 07:10

【摘要】：智能井技术在改善油藏管理、提高油气采收率、优化生产效率方面优势突出，它可以改善国内油田普遍存在的“三高二低”的采油现状和低渗透油田日益增多的现实状况，国外的智能井技术己形成比较完整的系统,但国内对智能井技术的研究尚处于起步阶段。故本文对智能井井下层间流体控制方法进行了尝试性研究。论文研究了InCharge全电动智能井系统的结构及工作原理，深入剖析了IPR滑套阀的结构及工作原理，为自主设计适合国内小井眼油井的智能井系统提供参考。按照智能井系统设计要求，设计了应用于7'井眼、3口的地层的直接液压驱动+光纤测量的智能井系统，，完成了系统的总体方案、井下管柱的安装结构、电源系统与液压系统工艺流程、自动测量与控制、PLC监控系统以及控制逻辑和安装与设备的布置等设计工作，给出了设计细节。所完成的直接液压驱动+光纤测量的智能井系统设计方案，通过井下管柱虚拟下入性仿真，验证了设计的合理性，基本达到了设计要求。针对国内油井以5’、5-l/2Vj、井眼居多的现实状况，直接水力驱动的液压管线较多、占用井眼有效利用空间、油管柱下入性差的问题，尝试性地设计了一套适合5'井眼、30的地层的全电动井下层间流体智能控制系统方案。设计完成了全电动1CV的结构、全电动ICVit动执行机构、阀门智能控制器、井下温度压力信号测量与处理电路、传输介质、传输电路等设计工作，制作了阀门驱动与控制系统模型样机并进行了部分功能性测试试验。测试表明模型样机能实现阀门的定位开/关控制，基本达到了设计H标。所完成的研究工作以及方案设计工作，可为我国研制具有自主知识产权的智能井系统提供有益参考。
[Abstract]:Intelligent well technology has outstanding advantages in improving reservoir management, improving oil and gas recovery, and optimizing production efficiency. It can improve the present situation of "three high and two low" oil production and the increasing reality of low permeability oil fields in China. Foreign intelligent well technology has formed a relatively complete system, but the domestic research on intelligent well technology is still in its infancy. Therefore, this paper attempts to study the method of interwell fluid control in intelligent wells. In this paper, the structure and working principle of InCharge all-electric intelligent well system are studied, and the structure and working principle of IPR sliding sleeve valve are deeply analyzed, which provides a reference for designing the intelligent well system suitable for small hole oil well in our country. According to the design requirements of intelligent well system, an intelligent well system is designed, which is applied to 7 'borehole, 3 formation direct hydraulic driving optical fiber measurement. The overall scheme of the system and the installation structure of downhole string are completed. The design details of power supply system and hydraulic system process, automatic measurement and control, PLC monitoring system, control logic, installation and equipment layout are given. The design scheme of the intelligent well system based on direct hydraulic driving fiber optic measurement is verified by the simulation of the downhole pipe string, and the rationality of the design is verified, and the design requirements are basically met. In view of the fact that the domestic oil wells are 5-l / 2 VJ, with the majority of boreholes, there are more hydraulic pipelines driven by direct hydraulic power, which occupy the space of effective utilization of boreholes, and have poor penetration under the tubing string. An intelligent interlayer fluid control system for 5 'borehole and 30 formation is designed in this paper. The structure of all-electric 1CV, the actuating mechanism of all-electric ICVit, the intelligent valve controller, the measuring and processing circuit of downhole temperature and pressure signal, the transmission medium, the transmission circuit and so on are designed and completed. A prototype model of valve drive and control system was made and some functional tests were carried out. The test results show that the model prototype can realize the positioning opening / closing control of the valve, basically reaching the design H standard. The research work and the scheme design work can provide a useful reference for the development of intelligent well system with independent intellectual property rights in China.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TE19;TP273

【引证文献】