低产无游梁式抽油系统优化设计及动态仿真
发布时间:2018-04-03 13:07
本文选题:无游梁抽油机 切入点:实心柱塞泵 出处:《燕山大学》2015年硕士论文
【摘要】:有杆抽油系统是国内外油田开采中应用最广泛的举升方式,目前游梁式抽油机和常规空心柱塞泵是抽油机井主要的地面和地下配套设备。随着油田开采进入中后期,产液量5t/d以下低产油井以及2t/d以下的超低井数量急剧增加,对于游梁式抽油机,冲次普遍在4min-1以上,即使将冲次降到最低也无法满足开采低产油井的需要;而常规空心柱塞泵的泵径普遍较大,排量偏大,导致大部分低产油井存在着泵效低、系统效率低、供采严重不平衡的问题,由此造成设备和能源的极大浪费。针对现有配套设备的不足,近年来研制了多种低冲次抽油机和小泵径抽油泵,但均存在着成本高、可靠性差能耗高的问题,因此研究新型节能低产油井配套设备具有重要的理论和现实意义。本论文的研究内容主要包括以下几个方面:(1)研发设计了无游梁式抽油系统,其中应用胶带和滑轮作为抽油机的传动部件,摆线针轮减速器作为抽油机的减速装置,大小天轮作为抽油机的增程机构,设计了新型无游梁式抽油机,具有冲次低、结构简单、成本低、传动效率高的优点;通过改变抽油泵的油流通道设计了新型实心柱塞抽油泵,可实现将抽油泵的泵径做的很小;(2)建立新型无游梁式抽油机悬点运动规律(位移、速度、加速度)、抽油杆柱纵向振动、减速箱输出扭矩和电动机输入输出功率的仿真模型、无游梁式抽油系统泵效及系统效率仿真模型及抽汲参数优选模型,为抽油机动态参数仿真与机构优化提供了理论依据;(3)利用机械优化设计理论,以上冲程最大扭矩因数最小为目标函数,综合考虑各种约束,建立抽油机机构尺寸优化设计的数学模型;以均方根扭矩最小为目标函数,建立平衡重滞后角优化模型;(4)利用Visual Basic 6.0开发《无游梁式抽油机动态参数仿真软件》,对无游梁式抽油机和实心柱塞泵整体进行仿真,并对新型无游梁式抽油系统动力性能参数和泵效、系统效率进行分析评价,最后应用该软件对低产油井抽汲参数进行优选。
[Abstract]:Rod pumping system is the most widely used lifting method in oil field production at home and abroad. At present, beam pumping units and conventional hollow piston pumps are the main surface and underground auxiliary equipment of pumping unit wells.As the oil field enters the middle and late stage of production, the number of low-yield wells under 5t/d and ultra-low wells under 2t/d increases dramatically. For beam pumping units, the impact times are generally above 4min-1.The pump diameter of the conventional hollow piston pump is generally larger and the displacement is larger than that of the conventional hollow piston pump, which results in low pump efficiency and low system efficiency in most of the low-yield wells.The problem of serious imbalance in supply and production has resulted in a great waste of equipment and energy.In recent years, many kinds of low impact pumping units and small diameter pumping pumps have been developed in view of the deficiency of existing supporting equipment, but they all have the problems of high cost and high energy consumption with poor reliability.Therefore, it is of great theoretical and practical significance to study the new energy-saving and low-yield oil well supporting equipment.The research content of this paper mainly includes the following several aspects: 1) Research and design of no-beam pumping system, in which belt and pulley are used as driving parts of pumping unit, cycloidal needle wheel reducer is used as deceleration device of pumping unit.As the extended range mechanism of pumping unit, a new type of beamless pumping unit is designed, which has the advantages of low impact, simple structure, low cost, high transmission efficiency, and a new solid plunger pumping pump is designed by changing the oil flow channel of the pumping unit.A simulation model of suspension motion (displacement, velocity, acceleration, longitudinal vibration of sucker rod string, output torque of reducer and input and output power of motor) can be established by making the pump diameter of the pumping pump very small (2 / 2) (displacement, velocity, acceleration, longitudinal vibration of sucker rod, output torque of reducer and input and output power of motor).The simulation model of pump efficiency and system efficiency and the optimal selection model of swabbing parameters provide a theoretical basis for dynamic parameter simulation and mechanism optimization of pumping unit.The minimum maximum torque factor of the stroke is the objective function, and the mathematical model of the optimization design of the pumping unit mechanism is established by taking all kinds of constraints into account, and the minimum RMS torque is taken as the objective function, the minimum torque of the pumping unit is taken as the objective function.The optimization model of balance weight lag angle is established. The simulation software of dynamic parameters of beam free pumping unit is developed by using Visual Basic 6.0 to simulate the whole system of beam free pumping unit and solid piston pump.The dynamic performance parameters, pump efficiency and system efficiency of a new type of no-beam pumping system are analyzed and evaluated. Finally, the swabbing parameters of low-yield oil wells are optimized by using the software.
【学位授予单位】:燕山大学
【学位级别】:硕士
【学位授予年份】:2015
【分类号】:TE933.1
【参考文献】
相关期刊论文 前10条
1 段江军;李航;康宝来;;低产油井生产设备的设计[J];机电产品开发与创新;2009年04期
2 何娟;隋阳;;国内特种抽油泵的种类及性能分析[J];河南科技;2011年14期
3 赵树洋,刘道信;有杆抽油泵使用与研究现状以及发展展望[J];山东机械;2003年03期
4 罗治中;;国内外抽油泵发展动态与展望[J];石油矿场机械;1986年03期
5 李红才;秦德福;鱼岗;侯军;樊勇;;节能型超低冲次抽油机技术研究[J];石油矿场机械;2010年05期
6 王当芳,崔旭明;复合天轮式长冲程抽油机的设计研究[J];石油矿场机械;1994年01期
7 张天福,焦清朝,应保连,王富全,高玉生;一种新型的链条滚筒抽油机[J];河南石油;2003年S1期
8 董世民,,金仁贤,崔振华;预测有杆泵抽油系统参数的新方法[J];石油机械;1996年02期
9 董世民,马德坤;有杆抽油系统动态特性的计算机仿真[J];实验力学;1996年03期
10 方仁杰;朱维兵;;抽油机历史现状与发展趋势分析[J];钻采工艺;2011年02期
本文编号:1705323
本文链接:https://www.wllwen.com/kejilunwen/shiyounenyuanlunwen/1705323.html