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美国《油气杂志》1981年12月28日一期报道据海德里尔公司的油管生产部报道,南路易斯安那生产公司创下20″套管柱的深度纪录。该公司把20″表层套管下到9050英尺,创该尺寸套管下入深度的世界纪录。
US Oil and Gas Magazine December 28, 1981 A report by Pipeline Production at Heidrill reported that a South Louisiana manufacturing firm set a record depth of 20 “casing string by placing a 20” casing under the casing To 9050 feet, the world record of the depth of the casing into the size.