出砂是影响油井生产能力的一个重要因素。
Sand production is an important factor, which affects oil well productivity.
从试井理论出发，得出了影响油井生产能力的主要因素是渗透率和有效厚度。
In the basis of well testing theory, it was got that the primary factors which influence ability of oil well to produce were permeability and effective thickness.
珠江口盆地砂岩油田油井的生产能力均高于我国陆上砂岩油田。
The well productivity of sand reservoirs in Pearl River Mouth Basin is higher than that of onshore oil field in China.
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