国内外对腐植酸的研究已有二百年的历史,腐植酸在钻井中的应用已有几十年的历史了。腐植酸类物质作为钻进泥浆的一个成分使用越来越引起钻探工作者的注意。因为各种腐植酸物质具有不同的钻井泥浆处理剂的良好功能。由于腐植酸含有羧基、酚羟基、醇羟基、磺酸基、胺基、羟基、甲氧 Humic acid research at home and abroad have two hundred years of history, humic acid in drilling applications for several decades. The use of humic acid as a component of drilling mud is increasingly drawing the attention of drilling workers. Because various humic substances have different functions of drilling mud treatment agents. Since humic acid contains carboxyl groups, phenolic hydroxyl groups, alcoholic hydroxyl groups, sulfonic acid groups, amine groups, hydroxyl groups, methoxy