Abstract: The economic limits of yielding the lowest initial daily output of a single well of over 3,000 meters deep is the subject of discussion of this paper. A formula Q₂=H·V₁(1+α)·β/(P-V₂)·T is presented and an example is given for ill-ustration in making the economic appraisal of an oil field.

摘要： 本文探讨了三千米以上油井产量的经济界限,即单井初期最低日产量。提出了计算公式Q₂=H·V₁(1+α)·β/(P-V₂)·T,并举例说明了计算方法。这种方法是实现油田经济评价的重要依据。