高抗压强度的中硬地层，如硬页岩。石灰岩。砂岩。白云岩。和硬石膏。大理石。
Medium hard formation with high compressive strength. Such as hard shale, limestone, sandstone, dolomite, anhydrite and marble.
用改进的热滚分散法探讨了含水量对硬脆性泥页岩稳定性的影响。
The effect of moisture content on shale stability was investigated by hot rolling test.
研究了大港油田港东地区沙河街地层三种硬脆性泥页岩的水化坍塌机理。
This paper studies the hydration sloughing mechanism of three kinds of hard and brittle shales of Shahejie formation in Gangdong oilfield.
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.
但对于实际中最广泛存在的硬脆性泥页岩，裂缝和微裂缝的存在是普遍性的，而且对泥页岩稳定的影响是不可忽视的。
But with brittle shale that widely exist in the world, fractures and micro-fractures are ubiquitous, its effect on shale stability cannot be neglected.
产品采用优质页岩为原料，经硬塑真空挤压成型，在隧道窑中用燃气恒定高温烧结而成。
With high quality shale as raw material, the products are extruded by hard plastic vacuum technology and sintered in tunnel kiln by fuel gas with stable high temperature.
产品采用优质页岩为原料，经硬塑真空挤压成型，在隧道窑中用燃气恒定高温烧结而成。
With high quality shale as raw material, the products are extruded by hard plastic vacuum technology and sintered in tunnel kiln by fuel gas with stable high temperature.
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