【摘要】 本文研究了脱水改性黑液作为泥浆助剂的使用性能．试验表明：它具有显著的降粘性、降滤失性、抗硬水性及抗盐性，是一种多效性泥浆助剂．更多还原

【Abstract】 In this paper. the use property of dehydrated property-modified black liquor as drilling mud assisstants was studied. It was shown that dehydrated modified black liquor was a kind of mulitiple-effect drilling mud assistants with good viscosity reducing, harder - water resisting and salt resisting.更多还原