Ferrochrome lignosulfonate has been used in drilling fluids ash thinning agent for a long time, due to its high tolerance to salt, calcium, temperature.

• 铁铬盐作为钻井液降粘剂虽然具有优良的抗盐、抗钙、抗温等性能,但由于对人、畜和植物有毒害作用,其使用逐渐受到了限制。