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为改善套管与灌注水泥之间的附着力，提高固井质量，需要研制粘附性能好、价格低廉的套管粘砂剂。通过室内合成和筛选，在模拟固井条件下研制了一种ＥＲ型套管粘砂剂。该粘砂剂由双酚Ａ环氧树脂（基料）、自制的高分子有机胺ＮＳＺ（固化剂）、１００目普通细砂（填料）以及正丁醇与二甲苯的复配物（稀释剂）配制而成。考察了粘砂套管剪切强度的影响因素。当粘砂剂涂层厚度为０．０２ｍｍ时，经常温固化４８ｈ和７５℃水浴中养护４８ｈ，剪切强度可达６．００ＭＰａ以上，所选填料的价格仅为ＣａＣＯ３或Ａｌ２Ｏ３等的１０％。
In order to improve the adhesion between casing and cement, and improve the cementing quality, it is necessary to develop a casing sticking agent with good adhesion and low cost. Through in-house synthesis and screening, an ER-type casing sand-fixing agent was developed under simulated cementing conditions. The sticky sand is made of bisphenol A epoxy resin (base material), self-made high molecular organic amine NSZ (curing agent), 100 mesh ordinary fine sand (filler) and n-butanol and xylene compound ) Preparation. The influencing factors of shearing strength of viscous sand casing were investigated. When the thickness of sticky sand agent coating is 0.02mm, it can be cured at room temperature for 48h and in water bath at 75 ℃ for 48h, the shear strength can reach 6.00MPa or above, and the price of selected packing is only 10% of that of CaCO3 or Al2O3.