China University of Petroleum

Guizhou Engineering Research Institute of Oil & Gas Exploration and Development

Yuanlong Wei

Yuhuan Bu

Huajie Liu

Shenglai Guo

Qiang Wang

Chang Lu

Xinyang Guo

Lingyun Zhao

Qi Zhao

A scour-resistant interface enhancer, a preparation method, and an application thereof are provided. The scour-resistant interface enhancer is a compound solution prepared by using a 0.1% surfactant CAEO-15 and a 0.3% silane coupling agent as solutes and using clear water and absolute ethanol as solvents, where the mass ratio of clear water to absolute ethanol is 9:1. The scour-resistant interface enhancer of the present invention used as pre-flush for well cementing of coalbed methane wells has good wettability modification effect, shows scour-resistant effect against cement slurry, exhibits good compatibility with cement slurry system, and can significantly improve the cementing strength and air tightness of two interfaces of coal bed and effectively enhance the cementing quality of coalbed methane wells.

Scour-resistant interface enhancer used for well cementing of coalbed methane wells, preparation method, and application

Growing community of inventors

Qingdao, China

Yuanlong Wei