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羧甲基纤维素（即C.M.C）是一种被广泛应用于钻井泥浆中的一种处理剂，它主要是一种降失水与增粘剂，在低固相不分散性泥浆与分散性泥浆中均可使用，并能取得较好的效果，每年用量较大，据不完全统计，我国每年仅用于钻井泥浆中的用量就达6000吨左右（石油部门5000吨，地质、煤炭、冶金部门约用1000吨左右），但是长期以来，它存在一个突出的问题，是不易溶解，往往在钻探现场使用时，要予先浸泡较长时间后才能部份溶解，或者长期形成“面疙瘩”状，需加温后才能逐渐溶解，这样就给野外使用带来十分不便。七九年十月份，地质部赴日泥浆考察团从日本带回速溶性C.M.C的新产品，日本钻探现场已普遍使用这种新产品，它的商品名称叫“帝石テ
Carboxymethylcellulose, or CMC, is a treatment that is widely used in drilling muds. It is primarily a loss of water and tackifier. In low solids non-dispersible slurries and dispersive slurries Can be used, and can achieve better results, the annual amount of larger, according to incomplete statistics, China’s annual amount of drilling mud used only to reach about 6,000 tons (5,000 tons of oil sector, geological, coal, metallurgical sector About 1000 tons), but for a long time, it has a prominent problem that it is not easy to dissolve. When it is often used on the drilling site, it needs to be soaked for a long time before it can be partially dissolved or formed into a “gnocchi” , Need to be heated to gradually dissolve, so give the field use is very inconvenient. In October 1979, the Ministry of Geology went to Japan for a mud investigation mission to bring back new products of instant soluble C.M.C from Japan. The new product has been commonly used at Japanese drilling sites. Its trade name is "