大量试验表明，钻井泥浆会对地层裂缝造成无法弥补的伤害，从而大大降低油井产量。但是，如果在钻井泥浆中加入颗粒状纤维物质则能明显降低钻井泥浆对地层所造成伤害的程度和深度。而在泥浆中加入颗粒状物质（如CaCO3），其效果要差得多。因此，建议在钻井泥浆中加入酸溶性纤维物质以降低钻井泥浆对裂缝性油藏的伤害。 Numerous tests have shown that drilling mud can cause irreparable damage to formation fractures and significantly reduce well production. However, the addition of granular fibrous material to drilling mud can significantly reduce the extent and depth of damage that drilling mud can cause to the formation. The addition of particulate matter (such as CaCO3) to the mud is much less effective. Therefore, it is advisable to add acid-soluble fiber to drilling mud to reduce the damage of drilling mud to fractured reservoirs.