Jiang Wei, Tu Xuexiang. APPLICATION OF POSICLOSE CORING TECHNOLOGY IN BOHAI GOLF[J]. Oil Drilling & Production Technology, 1997, 19(3): 40-44. DOI: 10.3969/j.issn.1000-7393.1997.03.009
Citation: Jiang Wei, Tu Xuexiang. APPLICATION OF POSICLOSE CORING TECHNOLOGY IN BOHAI GOLF[J]. Oil Drilling & Production Technology, 1997, 19(3): 40-44. DOI: 10.3969/j.issn.1000-7393.1997.03.009
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APPLICATION OF POSICLOSE CORING TECHNOLOGY IN BOHAI GOLF

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  • In order to resolve the problem of difficulty coring operations with low recovery rate in loose and soft formations in QHD-6 reservoir of Bohai Golf, an American Posiclose Coring Tool was imported and five coring operation trips of the total coring footage of 33.10 m were conducted. The total core length was 27.45 m and the recovery rate was 82.93%, by 48% higher than using the conventional 250 P coring tool. Its basic structure, technical specifications, working mechanism and rig-site application results were presented in this paper.
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