分析了API滤失试验的缺点和确定泥饼质量的关键因素，介绍了用泥饼强度、泥饼渗透率和泥饼厚度评价泥饼质量的试验方法。
The disadvantage of API filtration test to evaluate mud cake quality is analyzed. A method, taking mud cake strength, permeability and thickness as main evaluation factors is introduced.
介绍了硬脆性泥页岩稳定性评价的几种新方法——改进的热滚分散法、泥饼强度测试法及动滤失试验法。
New evaluation methods for fragile shale are introduced, including improved hot rolling test, filter cake strength tester, and dynamic filtration test.
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