For example, the suffocated and sulfomethlated materials and their derivatives have satisfactorily undergone tests as drilling mud thinners, and the results are comparable to those obtained with commercial mud thinners.

• 比如，将磺化物质、磺甲基化物质及其衍生物作为钻井泥浆稀料进行测试，效果令人满意，其应用效果可以同商业泥浆稀料相媲美。