冀东油田陆上作业区有杆泵抽油系统优化及配套技术研究

发布时间：2018-04-29 01:06

本文选题：陆上作业区 + 抽油机井　；参考：《西南石油大学》2015年硕士论文

【摘要】：冀东油田陆上作业区处于黄骅坳陷东北部的南堡凹陷北部,凹陷内断层发育,单个断块控制面积小,为典型复杂断块油气藏。陆上该作业区抽油井特征表现为油藏埋藏深(1500,-4000m),平均泵挂深(1890m),最大井斜大(48.1%的井大于30。),各举升方式中抽油机井检泵周期最短(382天)等特点。通过调查陆上作业区举升现状,发现抽油机井检泵周期成为制约陆上作业区检泵周期的关键问题。本文分别从产能预测、举升设计优化、偏磨治理、日常管理优化等方面分析研究了制约抽油机井检泵周期的因素。通过对主力区块进行产能预测研究,确定了主力区块抽油机井合理沉没度,为抽油机井选择合理泵径、泵深提供了依据。在举升设计优化方面,首先确定了抽油机选型的基本原则,其次建立了抽油杆柱受力分析及扶正器间距计算数学模型,为举升优化设计提供理论依据,最后通过对现有举升配套工具的评价,明确了典型配套举升工具应用范围,使举升管柱功能更加完备。通过抽油机井检泵原因分析,认清了影响抽油机井检泵周期的因素,确认了以偏磨为主的主次要矛盾,开展了偏磨机理研究,制定了配套技术对策,形成了防偏磨优化设计技术。在日常管理方面,通过研究确定合理的生产参数,科学合理的清蜡方式和周期,以及泵工况现场诊断技术和油管检测技术,与举升工艺相配套,延长抽油机井检泵周期。在上述研究的基础上,制定了陆上作业区举升配套优化原则。现场试验后,延长了抽油机井检泵周期,取得了明显的效果,对陆上作业区抽油机井长效生产具有一定的现实指导意义及实践价值。
[Abstract]:The onshore operation area of Jidong Oilfield is located in the north of Nanpu Sag in the northeast of Huanghua Depression. The fault is developed in the sag and the control area of a single fault block is small. It is a typical complex fault block reservoir. The characteristics of pumping wells in this working area on land are as follows: the buried depth of oil reservoir is 1500 ~ 4000mg, the average pump depth is 1890 mW, the maximum well deviation is 48.1% more than 30. 0%, and the pump checking period of pumping unit wells in each lift mode is the shortest 382 days). By investigating the lifting status of the onshore operation area, it is found that the pump inspection period of the pumping unit well becomes the key problem that restricts the pump inspection cycle in the onshore operation area. In this paper, the factors restricting the period of pump inspection in pumping units are analyzed and studied from the aspects of productivity prediction, lift design optimization, partial wear control, daily management optimization and so on. Through the research on productivity prediction of the main block, the reasonable submergence degree of the pumping unit well in the main block is determined, which provides the basis for selecting the reasonable pump diameter and the pump depth for the pumping unit well. In the aspect of lifting design optimization, the basic principle of pumping unit selection is first determined, and the mathematical model of sucker rod string force analysis and centralizer spacing calculation is established, which provides a theoretical basis for lifting optimization design. Finally, through the evaluation of the existing lifting tools, the application range of the typical supporting lifting tools is clarified, which makes the function of the lifting string more complete. Based on the analysis of the reasons of pump inspection in pumping units, the factors that affect the period of pump inspection in pumping units are clearly recognized, and the main and secondary contradictions are confirmed, the mechanism of eccentric wear is studied, and the corresponding technical countermeasures are worked out. The optimum design technology of anti-bias wear is formed. In the aspect of daily management, reasonable production parameters, scientific and reasonable wax cleaning method and period, field diagnosis technology and tubing detection technology of pump working condition are determined through research, and matching with lifting technology, the period of pump inspection in pumping unit well is prolonged. On the basis of the above research, the optimization principle of lifting and raising in land operation area is established. After field test, the pump inspection period of pumping unit well is prolonged, and obvious effect is obtained, which is of practical significance and practical value to the long-term production of pumping unit well in land operation area.
【学位授予单位】：西南石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE933.3;TE355.5

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