摘要
通过紫外光谱法研究了2-膦酸丁烷-1,2,4-三羧酸(PBTCA)与β-环糊精的包合作用,并证实其包合比为1∶1;将该包合物应用于砂岩酸化体系,进行砂岩岩心的酸化实验,实验结果表明β-CD-PBTCA包合物酸液体系可有效降低酸岩反应速度,并能阻止酸化过程中二次沉淀的生成。将环糊精包合物的缓释作用应用于砂岩油藏缓速酸化是可行的。
The inclusion action between β-CD and 2-Phosphonobutane -1,2,4-Tricarboxylic Acid（PBTCA） is investigated by UV-Vis spectrum. It has been confirmed that the host-guest inclusion complex’s stoichiometric ratio is 1：1. This complex is used in sandstone acid system. The result of the experiment shows that the β-CD - PBTCA inclusion complex acid system shall reduce the acid reaction rate effectively and prevent the secondary precipitation. This study confirms the feasibility of using Cyclodextrin inclusion complex in sandstone retarded acidizing.
出处
《重庆科技学院学报（自然科学版）》
CAS
2011年第1期117-119,共3页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
关键词
Β-环糊精
PBTCA
包合物
砂岩
缓速酸化
β-Cyclodextrin
2-Phosphonobutane-1
2
4-Tricarboxylic Acid
inclusion complex
sandstone
retarded acidizing
