研究将防砂堵水工艺合二为一的新型防砂堵水剂，既能有效防砂，又有选择性堵水效果。
Therefore a new type of sand prevention and water plugging agent was studied in this paper. The new agent can prevent sand effectively, but also plug water with high selectivity.
压裂充填工艺是中高渗透油气层和不稳定松软地层的有效增产、防砂措施，又是一种新的完井方法。
Frac and pack technology is both a effective stimulation and sand control treatment, and a new completion method in unstable crumbly formation and high permeability reservoir.
研究表明，洞穴完井是一种很好的增产控砂方式，其推广使用必将为天然气的防、控砂提供一条有效途径。
Cavity completion well is good method in increasing production and controlling sand, and it will become an effective method to control sand through research.
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