DSZ-A not only can plug high water-bearing formation, but also can plug case leakage.
DSZ - A堵剂不但可以封堵高含水层，而且可用于套管堵漏。
DSZ-A has been applied on site and gotten good effect. It is a agent which has wide prospect.
DSZ - A堵剂在现场应用中取得了良好效果，证实是一种有推广价值的堵剂。
Water shutoff agent DSZ-A is composed of inorganic particle. Its specialities are low cost, easily flow, high strength and long valid period.
DSZ - A是一种无机颗粒油井堵水剂，具有成本低、可泵性好、封堵强度高、有效期长的特点。
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