一种固井用低敏感缓凝剂的合成研究  

Synthesis of a Low Sensitivity Retarder for Well Cementing

作　　者：王义昕 WANG Yixin(COSL Oilfield Chemicals Division,Langfang Hebei 065201,China)

机构地区：[1]中海油田服务股份有限公司油田化学研究院,河北廊坊065201

出　　处：《辽宁化工》2024年第9期1387-1390,共4页Liaoning Chemical Industry

摘　　要：随着固井用缓凝剂的迅速发展,现场对高温缓凝剂的敏感性要求也愈来愈高。利用常见单体衣康酸和2-丙烯酰胺基-2-甲基丙磺酸进行水溶液聚合,再复配以小分子有机磷酸盐,制备了一种低敏感缓凝剂R51L,并利用分析测试手段红外吸收光谱和热重分析对低敏感缓凝剂R51L进行了表征。低敏感缓凝剂R51L是一种中高温缓凝剂,适用于120~220℃的温度段,具有加量和温度敏感性低、过渡时间短、不影响下灰时间、与其他外加剂配伍性良好的特点。该低敏感缓凝剂的成功合成为今后油井水泥用缓凝剂功能化提供了更多借鉴性的思路。With the rapid development of cementing retarders,the requirement of sensitivity for high-temperature retarders is also increasing.In this article,common monomers such as itaconic acid and 2-acrylamido-2-methylpropanesulfonic acid were used for aqueous solution polymerization,and then organic phosphates was added to prepare a low sensitivity retarder R51L.The low sensitivity retarder R51L was characterized by analytical testing methods such as infrared absorption spectroscopy and thermogravimetric analysis.Low sensitivity retarder R51L is a medium to high temperature retarder suitable for the temperature range of 120~220℃.It has the characteristics of low dosage and temperature sensitivity,short transition time,no effect on mixing time,and good compatibility with other additives.The successful synthesis of this low sensitivity retarder provides more reference ideas for the functionalization of retarders used in oil well cement in the future.

关 键 词：缓凝剂 稠化性能 温度敏感性 

分 类 号：TE256[石油与天然气工程—油气井工程]