一、基本概念清水中不含粘土，只需加入各种化学处理剂就能配出防塌，满足钻探工艺要求性能良好的冲洗液，即无粘土冲洗液。无粘土冲洗液又称无固相冲洗液，也有人称它为“化学水”。它是六十年代发展起来的一种新型冲洗液，在国外种类甚多，广为应用，如生物聚合物，羟乙基纤维素，瓜尔胶，РАМ加生物聚合物，РАМ加氯化钾等类型无粘土冲洗液。目前使用的РАМ冲洗液就是其中的一种。 First, the basic concept of water does not contain clay, just add a variety of chemical treatment agent can be deployed anti-collapse, drilling fluid to meet the performance requirements of a good rinse, that is, no clay rinse. No clay rinse liquid, also known as no solid rinse, it was also called “chemical water.” It is a new type of rinsing liquid developed in the 1960s. It is widely used in many foreign countries, such as biopolymers, hydroxyethyl cellulose, guar gum, РАМ plus biopolymers, РАМ plus potassium chloride Other types of clay-free rinse. The currently used РАМ rinse solution is one of them.