多杯等流型气锚应用试验效果统计误差评价

Evaluation of Statistical Error on Application Test Results of Multi-cup Uniform Flux Anchor

在多杯等流型气锚应用试验效果抽样误差与置信区间的理论基础上,给出了多杯等流型气锚应用试验效果抽样误差和置信区间的数值计算方法,分析了置信水平,抽样测量井数,单井生产参数波动幅度对多杯等流型气锚应用试验效果抽样误差的影响规律。根据上述计算方法,计算了某采油厂190口气锚井第一个月平均日产液量、产油量、沉没度的抽样误差及置信区间,从而实现了多杯等流型气锚应用试验效果统计误差评价。

Based on the theory of sampling error and confidence interval of multi-cup uniform flux anchor application test results, the corresponding numerical calculation method was given. The effect law of confidence level, numbers of sampling measurement wells and single well production parameter fluctuation on sampling error of multi-cup uniform flux anchor application test results was analyzed. According to the calculation method mentioned above, the sampling error and confidence interval of average daily fluid production, oil production and submergence of 190 anchor wells in the oil production plant in the first month were calculated, so as to realize the statistical error evaluation of multi-cup uniform flux anchor application test results.