调小参数对抽油机井产量和能耗的影响

Effect of Reducing Parameters on Output and Energy Consumption of Pumping Wells

调小参数是油田开发中常见的调整措施,主要目的是调整油井沉没度以达到合理流压。通过对供液不足、气影响和正常三种功图类型调小参数效果进行统计,确定了供液不足、和气影响井调小参数对产量无影响,功图正常井调小参数对产量有较大影响。通过对调小参数井产量和能耗进行现场测试,D1井冲速由5 min-1下降到1 min-1后,日耗电由93.53 k Wh下降到42.22 k Wh,但由于日产液下降幅度大于日耗电下降幅度,导致D1井吨液单耗由19.05 k Wh/t上升到29.94 k Wh/t;确定了调小参数可以降低抽油机井能耗,但调整幅度过大易导致吨液单耗上升,需要确定合理调整界限。

Reducing parameter is a common adjustment measure in oil field development. The main purpose is to adjust the submergence depth of oil well so as to achieve reasonable flow pressure. But in the daily management, reduce parameter is generally considered to affect output, technology and management personnel are not clear about the specific impact of reduce parameter on the rod pumped well. Based on the statistics of the effects of three kinds of power diagram types, such as insufficient liquid supply, gas influence and normal work, it is determined that the shortage of liquid supply and the influence of well adjusted small ginseng have no effect on output. Through the field test on the yield and energy consumption of small parameter wells, wells D1 rushed down to 1 by 5 min^(-1), the energy consumption by 93.53 kW · h dropped to 42.22 kW · h, but the daily fluid declined more than the Japanese consumption decline, resulting in well D2 tons of liquid consumption increased from 19.05 kW · h/t to 29.94 kW · h/t, the small parameter can reduce the energy consumption of pumping unit, but the adjustment is too large to lead to a rise in consumption of tons of liquid, to determine a reasonable adjustment limit.