低渗透油藏新型丛式井抽油机研究与应用

发布时间：2018-07-01 19:46

本文选题：低渗透油藏 + 丛式井　；参考：《科学技术与工程》2016年35期

【摘要】：由于高效节能、成本低的优良特点,丛式井抽油机具有良好的应用前景。针对低渗透油藏油井供液不足的典型特征,基于对称平衡原理,进行了新型丛式井抽油机动力学分析和节能机理分析。在实际工况下,给出了新型丛式井抽油机理论结果分析和样机实际测试结果分析;并与异相抽油机的工作性能进行对比。结果表明:抽油机采用对称平衡方式在低渗透油藏有较好的平衡效果;基于对称平衡原理的新型丛式井抽油机无需附加任何形式平衡重,减速器峰值扭矩大幅降低,减速器净扭矩曲线变化较为平缓,电动机装机功率与有效输出功率明显降低,载荷波动系数明显减小;适用于6口油井的新型丛式井抽油机样机和井数相同的异相机组相比,节能27%左右,装机功率降低至少37.5%,减速器额定净扭矩降低至少34%左右,重量降低至少约56%。对于低渗透油田,显示出比较显著的高效节能特性和较好的动力特性。
[Abstract]:Because of the advantages of high efficiency and energy saving and low cost, the cluster well pumping unit has a good application prospect. In view of the typical characteristics of lack of fluid supply in oil wells in low permeability reservoirs, a new type of cluster well pumping unit dynamics analysis and energy saving mechanism analysis are carried out based on the principle of symmetry balance. Under the actual working conditions, the theoretical analysis and the actual test result analysis of the new type of cluster well pumping unit are given, and the performance of the new type of pumping unit is compared with that of the heterogeneous pumping unit. The results show that the symmetrical balance method of pumping unit has good balance effect in low permeability reservoir, and the new type of pumping unit in cluster well based on symmetrical balance principle does not need any form of balance weight, and the peak torque of reducer is greatly reduced. The net torque curve of the reducer changes slowly, the motor loading power and the effective output power are obviously reduced, the load fluctuation coefficient is obviously reduced, and the new type of cluster well pumping unit prototype suitable for 6 wells is compared with the heterogeneous unit with the same number of wells. The energy saving is about 27%, the installed power is reduced by at least 37.5%, the rated torque of the reducer is reduced by at least 34%, and the weight is reduced by at least 56%. For the low permeability oil field, it shows remarkable characteristics of high efficiency and energy saving and better dynamic characteristic.
【作者单位】：西安石油大学;西北工业大学;
【基金】：陕西省科技统筹创新工程计划项目(2015KTZDGY06-02) 陕西省工业科技攻关项目(2015GY110,2016GY-185)资助
【分类号】：TE933.1

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