钻井液用改性淀粉制备与应用  

Preparation and Application of Modified Starch Additives for Drilling Fluid

作　　者：王中华[1] 

机构地区：[1]中国石化集团中原石油勘探局钻井工程技术研究院,濮阳457001

出　　处：《精细石油化工进展》2009年第9期12-16,共5页Advances in Fine Petrochemicals

摘　　要：对淀粉醚化产物和淀粉接枝改性产品的性能、生产工艺和应用进行了介绍。淀粉改性产物包括淀粉醚化产物和接枝共聚产物,淀粉醚化产物是一种抗盐性能好的钻井液处理剂,适合用作饱和盐水钻井液降滤失剂,其缺点是抗温能力差,而淀粉接枝共聚产物不仅具有良好的抗盐性能,且抗温能力大大提高,可用于各种类型的水基钻井液。The performances, production process and application of modified starch additive prepared by etherification and graft eopolymerization were introduced. Modified starch included etherified starch and graft eopolymer ized starch. The former had good salt - tolerance, but it had poor temperature resistance. The latter not only had good salt -resistance, but also had improved temperature resistance, and it could be used in all kinds of water based drilling fluids.

关 键 词：淀粉 改性产物 钻井液处理剂 羧甲基淀粉 羟丙基淀粉 淀粉接枝共聚物 

分 类 号：TS236.9[轻工技术与工程—粮食、油脂及植物蛋白工程]