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发明公开
CN104293327A 油页岩勘探新型钻井液 无效 - 驳回

油页岩勘探新型钻井液
摘要：
本发明涉及一种油页岩勘探新型钻井液，其特征在于其配方按固体质量与液体体积百分比为：钠膨润土4.0%；碳酸钠0.04%；低粘度羧甲基纤维素钠0.9%；水解聚丙烯酰胺0.06%；磺化沥青1.0%，其余是水；其具有较强的护壁防塌性、较好的流变特性；具有堵塞细小裂缝、防止粘卡功能；具有配制简单易操作且成本低的特点。
摘要（英）：

The invention relates to a novel drilling fluid for exploring oil shale. The novel drilling fluid for exploring the oil shale is characterized by being prepared from the following components according to a ratio of solid mass to liquid volume in percent: 4.0% of sodium bentonite, 0.04% of sodium carbonate, 0.9% of low-viscosity sodium carboxymethylcellulose, 0.06% of hydrolyzed polyacrylamide, 1.0% of sulfonated bitumen and the balance of water. The novel drilling fluid for exploring the oil shale has strong protecting wall anti-sloughing property and good flowing deformation property, has functions of blocking small cracks and preventing sticking and has the characteristics that preparation is simple, operation is easy and cost is low.

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