钻井液用阳离子烷基糖苷的高温稳定性研究  

Study on High Temperature Stability of Cationic Alkyl Polyglucoside Which is Used in Drilling Fluid

作　　者：李传武 司西强 王中华 Li Chuanwu;Si Xiqiang;Wang Zhonghua(Safety and Environmental Protection Department of Zhongyuan Petroleum Engineering Co.,Ltd.,SINOPEC,Puyang 457001,China;Research Institute of Drilling Engineering Technology of Zhongyuan Petroleum Engineering Co.,Ltd.,SINOPEC,Puyang 457001,China)

机构地区：[1]中石化中原石油工程有限公司安全环保部,河南濮阳457001 [2]中石化中原石油工程有限公司钻井工程技术研究院,河南濮阳457001

出　　处：《山东化工》2021年第14期7-9,共3页Shandong Chemical Industry

基　　金：中石化集团公司重大科技攻关项目“硅胺基烷基糖苷的研制与应用”(JPE19011);中石化集团公司重大科技攻关项目“改性生物质钻井液处理剂的研制与应用”(JP17047);中国博士后科学基金特别资助“钻井液用两性甲基葡萄糖苷的合成及其作用机理”(2012T50604);中国博士后科学基金面上资助“钻井液用糖苷基季铵盐的合成及其抑制机理研究”(2011M501194)联合资助。

摘　　要：阳离子烷基糖苷(CAPG)是一种具有突出抑制性能的泥页岩井壁稳定剂。为充分认识CAPG产品的高温稳定性能,对其进行热重分析,并考察了在高温老化条件下其对无土基浆和有土基浆流变性能的影响。实验结果表明:CAPG产品本身抗温达248℃,产品分子高温稳定性突出;CAPG可使无土基浆的抗温能力由100℃提高到150℃;CAPG可使有土基浆的抗温能力由120℃提高到180℃;CAPG的存在可大幅提升钻井液的抗高温老化性能,使钻井液在高温条件下仍能保持较好的流变性能。分析认为,CAPG的抗温能力是通过羟基、醚键及季铵基团的吸附、交联及护胶等作用来实现的。本研究为CAPG产品现场应用提供了技术参考。Cationic alkyl polyglucoside(CAPG)is a kind of shale wellbore stabilizer with outstanding inhibition performance.In order to fully understand the high temperature stability of CAPG products,thermogravimetric analysis was carried out,and the effects of CAPG on the rheological properties of clay free and clay based slurries were investigated under the condition of high temperature aging.The experimental results show that:the temperature resistance of CAPG product reaches 248℃,and the high temperature stability of product molecules is outstanding;CAPG can increase the temperature resistance of clay free based slurries from 100℃to 150℃;CAPG can increase the temperature resistance of clay based slurries from 120℃to 180℃;the existence of CAPG can greatly improve the high temperature aging resistance of drilling fluid,so that the drilling fluid can still maintain good rheological properties at high temperature.The analysis shows that the temperature resistance of CAPG is realized by the adsorption,cross-linking and gel protection of hydroxyl,ether bond and quaternary ammonium group.This study provides a technical reference for the field application of CAPG products.

关 键 词：钻井液 阳离子烷基糖苷 泥页岩 强抑制剂 高温稳定性 机理 

分 类 号：TE254[石油与天然气工程—油气井工程] O629.13[理学—有机化学]