China Petroleum Chemical Corporation

Sinopec Research Institute of Petroleum Engineering

Sinopec Petroleum Engineering Technology Research Institute Co., Ltd.

Zhoujun Li

Xiaohua Yang

Yongxue Lin

Fan Yang

Haibo Wang

Jian He

Lin Wang

Sheng Shuang Li

Xiong Li

Xiaoqiang Dong

Xianguang Wang

Suli Zhao

Xiaolin Qian

Junbin Jin

Xiuzhen Han

Jianwu Zhen

A maleamic acid monomer, and a preparation method and a use of the maleamic acid monomer. The structural formula of the monomer is as follows: formula (1), wherein, R is selected from The maleamic acid monomer provided in the present invention may be used as a comonomer to prepare temperature-tolerant and calcium salt-tolerant polymers.

Maleamic acid monomer and preparation method and use thereof

A composition and use thereof are disclosed herein. The composition comprises at least two selected from the group of amphiphilic block copolymer, polyurethane and acidic ionic compound. Also an oil-based drilling fluid comprising the composition and a method improving shearing force of oil-based drilling fluid are disclosed. The composition disclosed herewith can raise the shearing force of oil-based drilling fluid.

Composition and use therof, oil-based drilling fluid and a method for raising shearing force of oil-based drilling fluid

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Beijing, China

Zhoujun Li