稠油掺稀机抽井功图量油方法研究与应用

Study and application of the method of measuring oil for drainage of heavy oil

苏宏通 杨世国 温波 王栋 操银香

Su Hongtong Yang Shiguo Wen Bo Wang Dong Cao Yinxiang

中国石化 西北油田分公司 塔河采油二厂, 新疆 轮台 841604

No.2 Oil Production Plant, Tahe Oilfield, SINOPEC Northwest Oilfield Company, Luntai, Xinjiang 841604, China

塔河油田为超深、超稠油田，稠油黏度高需配合掺稀油生产；受掺稀泵压的波动，掺稀油生产过程中易于波动，导致掺稀机抽井混合液黏度波动大，井口出液不连续，油井产液计量精度低，影响稠油掺稀井产能评价及日常管理。通过对塔河油田稠油掺稀机抽井工作原理的分析，充分考虑稠油掺稀机抽井大间隙泵不同黏度下漏失量特征，同时结合塔河油田不同区块体积系数不同，利用稠油功图的有效冲程计算抽油机运行过程中的抽吸量，从而准确计算出稠油掺稀机抽井产液量，指导稠油掺稀抽油机井日常管理。

The Tahe oilfield is an ultra-deep and super-heavy oil field. Due to the high viscosity of heavy oil, light oil is mixed in for production. As dilute pump pressure fluctuates during production, the viscosity of mixed oil changes obviously, leading to the discontinuous outflow at wellhead and the low accuracy of oil production estimation, which are unfavorable for production evaluation and daily management. Through the analysis of the working principles of light oil mixing wells in the Tahe oilfield, taking into consideration of the leaking characteristics of large-gap pumps under different viscosities, combining with different volume coefficients in different blocks, we calculated the suction amount during the operation of the pumping unit by the effective stroke of the oil boom, and further calculated liquid production quantity, which guided the daily management of light oil mixing wells.

https://doi.org/10.11781/sysydz2017S1112