Chen Jianbing, An Wenzhong, Ma Jian. APPLICATION OF CASING FLOATING TECHNOLOGY IN OFFSHORE DRILLING[J]. Oil Drilling & Production Technology, 2001, 23(5): 19-22,83,84. DOI: 10.3969/j.issn.1000-7393.2001.05.006
Citation: Chen Jianbing, An Wenzhong, Ma Jian. APPLICATION OF CASING FLOATING TECHNOLOGY IN OFFSHORE DRILLING[J]. Oil Drilling & Production Technology, 2001, 23(5): 19-22,83,84. DOI: 10.3969/j.issn.1000-7393.2001.05.006
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APPLICATION OF CASING FLOATING TECHNOLOGY IN OFFSHORE DRILLING

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  • The casing floating technology is used chiefly in extended reach wells and horizontal wells. That is a section of air or light density drilling fluid holded inside lower casing string to keep casing string floating in section of high deviation well to decrease drag running casing. This article introduces mainly construction of casing floating tool and working theory and floating technology used in extended reach wells and horizontal wells in several national offshore oil fields.
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