延长油矿钻井井控系统安全评价研究

发布时间：2018-08-27 19:34

【摘要】：本文主要针对延长油矿定边采油厂天然气钻井井控系统的一些特点和在钻井完井过程中出现的一些安全问题,综合所学的安全评价理论、安全管理理论和一些相关的行业内部安全生产技术等学科基础,运用层次分析法、专家评分法等方法对该区块的天然气井钻井井控系统的安全性进行评价并分析,建立起安全评价指标体系,根据评价的结果采取相应的安全对策和措施。该文通过充分调研,得出的主要成果为:1.根据延长油矿定边采油区的环境特征、地质特征及其钻井井控系统的特点,对其进行危害因素识别,探究这些因素对井控系统安全性的影响,对钻井井控系统的二级三层结构的安全评价指标体系进行了建立。2.安全评价指标体系中指标论域及评价等级论域的确立。运用AHP确定钻井井控系统各指标的权重;并用MATLAB软件编程来实现特征根、特征向量的求取,并进行一致性检验。3.采用专家评判法通过对现场10名专家进行安全评价调查表的调查结果,得出了DPS-20井的井控状态相对比较安全。4.根据层次分析法和专家评判法,对影响井控安全的重点因素进行了重点的危害分析,制定了相应的应急处理处置方案。5.对钻井井控系统提出风险控制的措施,进而进行安全管理和安全教育,有效控制溢流、井喷等事故的发生,保障钻井作业能够安全运行。
[Abstract]:This paper mainly aims at some characteristics of natural gas drilling well control system and some safety problems in the drilling and completion process of Yanchang Oil Mine fixed Edge Oil production Plant, and synthesizes the safety evaluation theory learned in this paper. The safety management theory and some related disciplines such as internal safety production technology are used to evaluate and analyze the safety of the drilling well control system of natural gas wells in this block by means of analytic hierarchy process (AHP) and expert scoring method. The index system of safety evaluation is established, and the corresponding safety countermeasures and measures are taken according to the evaluation results. The main result of this paper is: 1: 1. According to the environmental characteristics, geological characteristics and the characteristics of drilling well control system, the harmful factors are identified, and the influence of these factors on the safety of well control system is explored. The safety evaluation index system of two-stage three-layer structure of drilling well control system is established. The establishment of index domain and evaluation grade domain in the index system of safety evaluation. The weight of each index of drilling well control system is determined by AHP, and the feature root and eigenvector are obtained by MATLAB software, and the consistency is checked. 3. By using expert evaluation method, through the investigation results of safety evaluation questionnaire for 10 experts on the spot, it is concluded that the well control state of DPS-20 well is relatively safe. 4. According to the analytic hierarchy process (AHP) and expert evaluation method, the key factors affecting well control safety are analyzed, and the corresponding emergency treatment and disposal scheme .5. The risk control measures for drilling well control system are put forward to carry out safety management and safety education to effectively control the occurrence of accidents such as overflow and blowout and to ensure the safe operation of drilling operations.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE28

【共引文献】