Duane Morris LLP
Oil well cement settlement stabilizer for high-temperature cementing of oil and gas wells and preparation method thereof, and cement slurry
An oil well cement settlement stabilizer is ternary cement settlement stabilizer or quaternary cement settlement stabilizer; wherein the quaternary cement settlement stabilizer containing structural units A represented by formula (I), structural units B represented by formula (II), structural units C represented by formula (III), and structural units D represented by formula (IV); Wherein the ternary cement settlement stabilizer containing structural units A represented by formula (I), structural units B represented by formula (II), and structural units D represented by formula (IV);
China University of Petroleum (East China)
C C C C C C C C C C C C
C08F C08F C08F C09K C04B C08F C09K C08F C04B C08F C04B C08F
additional inventional inventional inventional additional inventional inventional inventional inventional additional inventional inventional
Chengwen Huan Xin Ruihe Wenfei Yucheng Zizhen
Wang Wang Chen Wang Li Xue Wang