出砂是指油气水井在生产过程中，由于生产压差过大、砂岩油气层岩石胶结疏松等原因，使地层砂流入井筒，堵塞油气通道，造成油气井停产的现象。
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.
通过预测，得到预防出砂的临界生产压差和临界产量。
Gained the critical production pressure difference and the critical output by the model.
我用反凹陷反对胶粘剂的填料，因为它本身以更容易出砂。
I used anti sag as opposed to the adhesive filler as it lends itself to easier sanding.
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