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本文介绍了新型固井材料AWG抗渗水泥的各项物理性能。通过室内实验,确定了AWG水泥体系增强剂、AWG水泥浆体系缓凝剂和分散剂,研究了AWG水泥浆体系的配伍的现场应用及缓凝剂对水泥浆体系性能的影响。AWG抗渗固井水泥属于硫铝酸盐水泥系列的一种新型国井材料,AWG水泥具有速凝、早强、短候凝、抗渗、防水气窜、微膨胀、耐腐蚀、抗锈蚀等特性。通过在大庆油田萨中、萨南东部和杏七区、北一区4口井现场应用表明,使用AWG水泥国井后8h测声幅,得到良好的固井质量,达到国内领先水平。AWG水泥在高、低压共存的多压力层系复杂地质情况下使用,能有效地提高调整井、疑难井的固井质量,适用于调整井、疑难井固井、小眼井固井、各种表层套管固井及海上固井。
This article describes the new cementing material AWG impermeable cement various physical properties. Through laboratory experiments, AWG cement system enhancer, AWG cement system retarder and dispersant were determined. The field application of compatibility of AWG cement slurry system and the effect of retarder on the performance of cement slurry system were studied. AWG impermeable well cement belongs to a new type of well material in the series of sulphoaluminate cement. AWG cement has the characteristics of quick setting, early strength, short setting, impermeability, water gas channeling, slight expansion, corrosion resistance and corrosion resistance . The field application of four wells in the areas of Sahon, the eastern part of the southern Saanen, the alluvial seventh and the northern part of the Daqing Oilfield shows that the sounding amplitude after 8 hours of using the AWG cement national well achieves a good cementing quality and reaches the leading domestic level. AWG cement can be used effectively in complex geological conditions of multi-pressure strata coexisting with high and low pressure. It can effectively improve the cementing quality of adjustment wells and difficult wells. It is suitable for cementing wells with difficult wells, well cementing wells, cementing wells, Surface casing cementing and offshore cementing.