油井出砂是国内外各油田普遍存在的一个自然现象。如果地层出砂得不到有效防治,油井出砂会越来越严重,致使油井减产、减注甚至停产、停注,严重时还可能造成砂卡、套管损坏或油井报废,因此搞好防砂工作非常重要。 Oil well sanding is a common natural phenomenon in all oil fields at home and abroad. If the formation of sand can not be effectively prevented and controlled, the sand will be more and more serious, resulting in reduced production of oil wells, even cut down or stop production, stop injection, serious may also cause sand cards, casing damage or oil well, so good sand Work is very important.