八十年代以来,国内外对腐植酸的研究、开发、生产和利用都有了新的进展。全世界每年公开发表的专利和文献很多,其中半数以上是产品开发和应用方面的报道。 本文仅就腐植酸在石油钻井液应用方面,主要是国内的情况作一概括的介绍。 1.国外腐植酸在石油钻井液中的应用 Since the 1980s, new progress has been made in the research, development, production and utilization of humic acid at home and abroad. Every year, there are many patents and literatures published in the world each year, of which more than half are reports of product development and application. This article only on the application of humic acid in oil drilling fluids, mainly for domestic conditions for a general introduction. 1. Foreign humic acid in oil drilling fluid applications