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1982年,在休斯顿由国际钻探承包者协会与加拿大油井钻探承包者协会联合举办的钻探技术会议上,讨论过一种新型非沥青型的泥浆漏失添加剂和一种新的纤维状渗漏
At a drilling technology conference in Houston in 1982 jointly organized by the International Association of Drilling Contractors and the Canadian Association of Well Drilling Contractors, a new non-asphaltic mud loss additive and a novel fibrous leak were discussed