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Keywords: drilling technology research institute
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Proceedings Papers

Paper presented at the International Oil and Gas Conference and Exhibition in China, June 8–10, 2010
Paper Number: SPE-131820-MS
... paper aims to provide a new type drilling tool, named Downhole Blowout Preventer (DBOP), developed by Xinjiang Drilling Technology Research Institute of Western Drilling Engineering Corporation of CNPC, which could achieve a wellbore full-procedure underbalanced effectively. There’re some advantages...

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