| 摘要 |
A wellbore system for simultaneously drilling a wellbore into an earth formation and producing hydrocarbon fluid from the wellbore, is provided. The system comprises a production tubing extending into the wellbore and having a hydrocarbon fluid inlet arranged in a first part of the wellbore in fluid communication with a hydrocarbon fluid bearing zone of the earth formation, and a drilling riser extending through the production tubing and having a drilling fluid inlet in fluid communication with a second part of the wellbore, said second wellbore part being scaled from said first wellbore part. A drill string extends through the drilling riser and into said second wellbore part so as to allow further drilling of the wellbore.
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