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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and performance evaluation of hydrophobically associating polymer anti-water channeling agent for oil well cement
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Preparation and performance evaluation of hydrophobically associating polymer anti-water channeling agent for oil well cement

机译：油井水泥疏水性缔合高分子抗水声窜剂的制备与性能评价

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摘要

The channeling resistance of cement slurry is one of the critical factors related to cementing quality, especially in the cementing of adjustment well. Due to the complex pressure layer and large pressure fluctuation, the annular channeling problem is easily caused by water invasion. Using 2-acrylamide-2-methyl propane sulfonic acid (AMPS), acrylamide (AM), maleic anhydride (MA), acrylic ester 18(St) as raw materials, we prepared a hydrophobic associative polymer (SMAL) by free radical micellar polymerization. The synthetic products were characterized by IR, NMR, and SEM, and the evaluated engineering application performance. The results showed that SMAL achieved the expected synthesis purpose. Compared with the water channeling pressure of 0.1 Mpa for blank cement slurry, the water channeling pressure of SMAL cement slurry reaches 5.3 Mpa, which significantly improves the anti-water channeling ability of cement slurry. After adding SMAL, the 14d flexural strength of cement stone was also increased from 7.7 to 8.3 MPa, which had no adverse effect on cement slurry's rheological property.
机译：水泥浆的抗窜性是影响固井质量的关键因素之一，尤其是在调整井固井中。由于压力层复杂，压力波动大，容易因水侵造成环空窜槽问题。以2-丙烯酰胺-2-甲基丙烷磺酸（AMPS）、丙烯酰胺（AM）、马来酸酐（MA）、丙烯酸酯18（St）为原料，通过自由基胶束聚合制备了疏水缔合聚合物（SMAL）。通过红外光谱、核磁共振和扫描电镜对合成产物进行了表征，并对其工程应用性能进行了评价。结果表明，SMAL达到了预期的合成目的。与空白水泥浆0.1MPa的水窜压力相比，SMAL水泥浆的水窜压力达到5.3MPa，显著提高了水泥浆的抗水窜能力。加入SMAL后，水泥石的14天抗折强度也从7.7 MPa提高到8.3 MPa，对水泥浆的流变性能没有不利影响。

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