杜84块机采提高系统效率措施研究

发布时间：2018-11-11 20:07

【摘要】：曙一区杜84块为特种油开发公司的主要生产区块,开采着全世界最稠的超稠油,都是采用机械方式采油,目前的系统效率在23%左右,随着油田开发的不断向前深入,曙一区杜84块已经逐步进入到了产量递减的阶段,所以通过一系列的措施来提升该区块机采井的系统效率显得尤为重要。通过现场测试对机采井系统效率进行采集数据,结合各种井况及生产数据进行综合分析,明确各种因素对机采井系统效率的影响规律,确定挖潜方向。由于超稠油生产的多样性和特殊性,在实施过程中,结合油井不同的生产特点,通过挖潜以及实施油井增产措施,努力增加油井产量,提高泵效;在确保油井日产水平的前提下,通过实施机、杆、泵的参数设计及优化组合,调整油井生产过程控制,进一步降低抽油机能耗,减少生产成本。根据超稠油生产特点,优选保温效果好、作业工序少的注采一体管柱。从满足生产角度考虑出发,建立抽油机井悬点载荷及扭矩计算的数学模型,通过计算选出合适的抽油机机型,确定匹配的电机。根据超稠油开采特点,选择设计井筒及地面管线设备的保温措施;设计井筒加热方法,应用超稠油抽油机调冲次技术。结合抽油机运动规律和超稠油的性质,建立抽油杆柱受力、曲柄轴扭矩、泵效、系统效率计算的数学模型,在满足产量要求的条件下,以系统效率为目标,确定抽油机井参数优化设计方法。通过本课题的研究,能够分析掌握本区块机采井的系统效率,通过加大油井管理挖潜及实施抽油机井参数优化工作力度,来降低机采井的能耗,减少吨液耗电,提高系统效率。同时,加大节能技术和设备的引进推广力度,降低无功损耗,提高抽油设备效率。
[Abstract]:Block du 84 of Shuyi District is the main production block of the special oil development company, producing the thickest super heavy oil in the world. It is produced by mechanical means. At present, the system efficiency is about 23%. As the development of the oil field continues to deepen, Block du 84 in Shu 1 area has gradually entered the stage of production decline, so it is particularly important to improve the system efficiency of mechanical production wells in this block by a series of measures. Through the field test to collect the data of mechanical production system efficiency, combined with all kinds of well conditions and production data to carry on the comprehensive analysis, clear each kind of factor to the machine production well system efficiency influence rule, determine the direction of tapping the potential. Because of the diversity and particularity of super heavy oil production, combining with the different production characteristics of oil wells, through tapping potential and implementing measures to increase production of oil wells, the production of oil wells can be increased and pump efficiency will be improved. Under the premise of ensuring the daily production level of oil wells, through the parameter design and optimization combination of actuators, rods and pumps, the production process control of oil wells can be adjusted to further reduce the energy consumption and production cost of pumping units. According to the production characteristics of super heavy oil, the optimum selection and heat preservation effect are good, and the injection and production tubing with less working procedures are selected. In order to satisfy the requirement of production, a mathematical model for calculating the load and torque of pumping well suspension point is established. The suitable pumping unit type is selected by calculation, and the matching motor is determined. According to the characteristics of super heavy oil production, the insulation measures for designing wellbore and surface pipeline equipment are selected, and the heating method of wellbore is designed, and the technology of adjusting impulse times of super heavy oil pumping unit is applied. Combined with the motion law of pumping unit and the properties of super heavy oil, a mathematical model for calculating sucker rod string force, crank shaft torque, pump efficiency and system efficiency is established. Under the condition of satisfying the requirement of output, the system efficiency is taken as the goal. The optimum design method of pumping well parameters is determined. Through the research of this subject, we can analyze and master the system efficiency of mechanically produced wells in this block, increase the management of oil wells and optimize the parameters of pumping wells to reduce the energy consumption, reduce the power consumption of tons of liquid, and improve the efficiency of the system. At the same time, the introduction and popularization of energy-saving technology and equipment should be strengthened, the reactive power loss should be reduced, and the efficiency of pumping equipment should be improved.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE355.5

【相似文献】