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Keywords: underbalanced drilling technology
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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-131844-MS
... drilling oil field directional drilling underbalanced drilling china spe 131844 process ubd oilfield gas drilling annular pressure drilling ubd equipment complexity application underbalanced drilling technology cnpc completion drilling operation ubd valve air hammer circulation...
Proceedings Papers

Paper presented at the International Oil and Gas Conference and Exhibition in China, June 8–10, 2010
Paper Number: SPE-131820-MS
... people come to realize that the UBD is one of the most effective drilling technologies in reservoir exploration. However, the conventional Underbalanced Drilling Technology has its own faultiness. Take tripping pipe and liner for instance, we have to operate the well killed for well-control safety...

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