文中对碱性硅酸凝胶作为固砂剂进行了研究，探讨了碱性硅酸凝胶作固砂剂的机理，并与酸性硅酸凝胶固砂剂对比。
The paper studies sand consolidation act of alkaline silicic acid gel and discusses the mechanism of alkaline silicic acid gel used for sand control and contrasts with acidity silicic acid gel.
河口坝与前缘砂坝接触，酸性水容易进入河口坝，河口坝砂体中的长石受酸性水溶蚀，形成次生孔隙。
The mouth bar contacts with the frontal sand bar and acidic water can easily flow into mouth bar. The feldspar in sand bodies of mouth bar is dissolved and generates secondary pores.
河口坝与前缘砂坝接触，酸性水容易进入河口坝，河口坝砂体中的长石受酸性水溶蚀，形成次生孔隙。
The mouth bar contacts with the frontal sand bar and acidic water can easily flow into mouth bar. The feldspar in sand bodies of mouth bar is dissolved and generates secondary pores.
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