专利检索 ap:("China University of Petroleum (East China)" OR "Research Institute of Petroleum Exploration & Development") AND inv:"YOngpeng Sun" 第 1 页

1.

发明授权
Polymer and preparation method thereof, and viscosified acid fluid 有权

公开(公告)号：US09932517B1

公开(公告)日：2018-04-03

申请号：US15671736

申请日：2017-08-08

申请人： China University of Petroleum (East China) , Research Institute of Petroleum Exploration & Development

发明人： Caili Dai , Mingwei Zhao , He Liu , Yining Wu , YOngpeng Sun , Guang Zhao , Zhongliang Xu

IPC分类号： C09K8/74 , C08F220/56

CPC分类号： C09K8/74 , C08F220/56 , C09K2208/32

摘要： The present invention relates to the field of oil-field chemical reagents, and discloses a polymer, a preparation method of the polymer, and a viscosified acid fluid. The polymer contains structural units represented by formula (1), structural units represented by formula (2), and structural units represented by formula (3), wherein, R1-R6 and R11-R13 are H or C1-C4 linear or branched alkyl respectively and independently, R7 is C1-C4 linear or branched alkylene, R8-R10 are C1-C5 linear or branched alkyl respectively and independently, R14 is C1-C4 linear or branched alkyl, and n=0-4.